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Linux System Engineers Position Description CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named one of the 'World's Best Employers' by Forbes magazine. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a member not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you'll be part of an open, friendly community of experts. We'll train and support you in taking your career wherever you want it to go. CGI's Space, Defence and Intelligence business unit, focuses primarily on the delivery of contemporary and innovative technical solutions for the government agencies most challenging problems. We work, build, and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure. We are currently looking for an experienced System engineers to join our cross-functional team who, in partnership with our clients, will help define, guide and assure the delivery of integrated solutions. The role offers fantastic opportunities to work within an interesting and highly rewarding environment. We are heavily committed to developing our members and provide excellent learning and development opportunities to ensure that your knowledge and skills keep pace with the evolving technology landscape. We engender a culture of innovation, collaboration and ownership; highly motivated self-starters thrive within our organisation. Although we would like candidates to have all the skills we need, we would consider high quality individuals who meet most of the criteria Due to the secure nature of this project, this role requires candidates to either already hold, or be eligible to obtain, a high level of UK Security Clearance. To meet the eligibility criteria for this clearance, applicants must be sole British nationals, have been resident in the UK for the past 10 years, and must not have spent more than 28 consecutive days outside the UK within the last five years. Individuals who do not currently hold clearance are still encouraged to apply and will be considered both for this position and for other suitable opportunities within CGI where appropriate. This role is primarily based on a secure client site and requires attendance on site five days per week due to the sensitive nature of the work and the systems involved. While the position is predominantly site-based, there may be occasional flexibility where business needs and security constraints allow. Any such arrangements would be agreed in advance with the project team. Your future duties and responsibilities In this role, you will support and enhance secure Linux environments across production and non-production systems, ensuring reliability, performance, and security. You will take ownership of diagnosing issues, improving deployment efficiency, and maintaining platforms that underpin highly sensitive operations. You will also work closely with clients and CGI teams to support cloud and security transformation initiatives. This includes contributing to hybrid cloud strategies and helping evolve environments towards modern security models, while being supported by experienced colleagues in a collaborative setting. Key responsibilities include: Diagnose & Resolve system issues across production and non-production Linux environments Administer & Maintain enterprise Linux systems, ensuring stability and performance Optimise & Automate deployments to improve efficiency and reliability Support & Enable cloud adoption, hybrid architectures, and migration activities Contribute & Implement security improvements, including zero-trust approaches Collaborate & Advise clients and internal teams on best practices and improvements Required qualifications to be successful in this role You will have hands-on experience administering Linux systems in secure environments, with a proactive mindset and strong troubleshooting skills. You are comfortable working closely with clients, contributing to modernisation initiatives, and continuously developing your technical capability. Essential qualifications: At least 2 years' experience as a Linux Systems Administrator Strong hands-on expertise with enterprise Linux distributions (Red Hat, CentOS, Ubuntu) Proficiency with Linux command-line tools and shell scripting Experience with system monitoring, patching, performance tuning, and automation Proven ability to troubleshoot issues and perform root cause analysis Working knowledge of networking concepts in Linux environments Experience with security hardening and secure system configurations Exposure to cloud, virtualised infrastructure, or infrastructure-as-code tools is advantageous DV Security Clearance (or willingness and eligibility to obtain) and sole UK nationality Together, as owners, let's turn meaningful insights into action. Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you'll reach your full potential because You are invited to be an owner from day 1 as we work together to bring our Dream to life. That's why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company's strategy and direction. Your work creates value. You'll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise. You'll shape your career by joining a company built to grow and last. You'll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons. Come join our team-one of the largest IT and business consulting services firms in the world.

Role: SAP HANA Administrator Salary: £50,000 - £62,000 Location: Birmingham (Hybrid - 3 Days On-site Weekly) Requirement: Eligible for Security Clearance Network IT is recruiting for a SAP HANA Administrator to join our client's Enterprise Support & Security team, supporting the life cycle management of Linux-based SAP HANA services. This is a hands-on technical role focused on database administration, performance optimisation, and ensuring secure, reliable infrastructure to support business-critical operations. You'll work closely with the SAP team and wider IT stakeholders to maintain high availability, troubleshoot issues, and deliver improvements across the SAP HANA environment. This is a key role balancing day-to-day operational delivery with strategic infrastructure support, including upgrades, compliance, and automation initiatives. Due to the nature of work you would be involved in, the successful candidate will need to be eligible for Security Clearance (SC). Key Responsibilities In this dynamic role, you'll be at the heart of our client's SAP HANA infrastructure-optimising performance, solving complex database challenges, and ensuring seamless operations across critical business systems. From tuning and troubleshooting to collaborating with cross-functional teams and driving automation, you'll play a pivotal part in delivering secure, high-performing services that support strategic growth and innovation. If you thrive in a fast-paced environment and enjoy blending technical depth with real-world impact, this is the opportunity to make your mark. Administer, manage, and maintain SAP HANA databases. Perform database tuning, performance monitoring, and capacity planning. Support backup, recovery, and replication operations. Resolve database performance and data-related issues. Collaborate with SAP and IT teams to ensure smooth operations and issue resolution. Deliver infrastructure services in line with SLA and compliance targets. Ensure adherence to ITIL processes and security standards. Produce and maintain technical documentation and non-technical summaries. Experience Requirements Minimum 3 years' experience as a SAP HANA Administrator. Strong background in database administration, tuning, and recovery. Skilled in automation and Scripting for database operations. Excellent problem-solving and troubleshooting abilities. Strong communication and collaboration skills. High level of technical competence and attention to detail. Good understanding of ITIL framework and change management. Ability to summarise technical issues for non-technical stakeholders. Desirable Experience Experience with SAP upgrades (S2 to HANA). Exposure to cloud platforms and virtualisation technologies. Familiarity with cross-platform endpoint tools. Relevant certifications in SAP or database technologies.

Job Title: PAM Specialist Location: Culham, Oxfordshire - hybrid working (2-3 days/week on site) Contract Duration : 30/09/2026, possible extension Daily Rate: £55/hr (Umbrella - Maximum) IR35 Status: Inside IR35 Security Clearance: Must be eligible for SC The PAM Specialist will be responsible for the hands-on implementation, configuration, and ongoing management of the organisations BeyondTrust Privileged Access Management platform. Working within the cyber security team, you will deploy and configure Password Safe, Privileged Remote Access, and related BeyondTrust components to secure privileged access across the enterprise. This is a technically focused implementation role requiring deep expertise in BeyondTrust products and privileged access management. You will work closely with infrastructure teams, application owners, and security operations to ensure privileged accounts are properly vaulted, sessions are monitored, and access follows least privilege principles. Key Accountabilities Implement and configure BeyondTrust Password Safe for credential vaulting and management Deploy and manage BeyondTrust Privileged Remote Access for secure vendor and admin access Configure automated password rotation policies for privileged and service accounts Implement privileged session recording, monitoring, and keystroke logging Configure Just-in-Time (JIT) access workflows and approval processes Onboard Windows, Linux/Unix Servers, network devices, and applications to the PAM platform Discover and vault service accounts, application accounts, and shared credentials Configure Smart Rules for automated account discovery and management Implement session Proxy configurations for RDP, SSH, and application access Develop break-glass procedures and emergency access workflows Integrate BeyondTrust with SIEM for security monitoring and alerting Configure BeyondTrust connectors for Active Directory, Entra ID, and target systems Manage platform upgrades, patching, and health monitoring Troubleshoot connector issues, session failures, and platform errors Maintain documentation of PAM configurations, policies, and operational runbooks Support audit and compliance activities with reporting and evidence gathering Essential: Hands-on experience implementing and managing PAM toolkits Experience with Privileged Remote Access configuration and management Strong understanding of credential vaulting, password rotation, and check-in/check-out workflows Experience configuring privileged session recording and monitoring Knowledge of service account discovery and life cycle management Experience onboarding Windows Server, Linux/Unix, and network devices to PAM platforms Understanding of Active Directory privileged account management Experience with SIEM integration for PAM event logging and alerting Working knowledge of security frameworks: ISO 27001, NIST CSF Strong troubleshooting skills for connector and session issues Good documentation skills for technical configurations and runbooks Ability to obtain SC-level national security clearance Desirable: Degree in Information Security, Computer Science, or related STEM field BeyondTrust certifications (Password Safe Administrator, Privileged Remote Access) Experience with BeyondTrust Endpoint Privilege Management Experience with other PAM platforms (CyberArk, Delinea) Scripting skills (PowerShell, Python) for automation Experience with database privileged access (SQL Server, Oracle) Familiarity with ITSM workflows and change control procedures Experience in public sector or critical national infrastructure environments Knowledge of OT/ICS environments and industrial systems access requirements To apply for this role please submit your latest CV or contact Aspect Resources Disability Confident As a member of the disability confident scheme, CLIENT guarantees to interview all candidates who have a disability and who meet all the essential criteria for the vacancy. In cases where we have a high volume of candidates who have a disability who meet all the essential criteria, we will interview the best candidates from within that group. Armed Forces Covenant CLIENT is proud to support the Armed Forces Covenant and as such, we guarantee to interview all veterans or spouses/partners of military personnel who meet all the essential criteria for the vacancy. In cases where we have a high volume of ex-military candidates/military spouses or partners, who meet all of the essential criteria, we will interview the best candidates from within that group. If you qualify for the above, please notify us. We will be in touch to discuss your suitability and arrange your Guaranteed Interview. Should you require reasonable adjustments at any point during the recruitment process or if there is a more accessible way for us to communicate, please do let me know.

Innovative Technology start-up in the Sustainability sector seeks an open-minded Linux Systems Administrator / Linux Infrastructure Engineer to maintain internal systems and provide a compute platform to operate their simulation, optimization and AI technology at scale. You'll also have the opportunity to support some exciting research. You should have strong Linux server management experience, ideally across bare metal and Cloud servers, have experience of HPC Cluster environments and be familiar with infrastructure of code. Hybrid working and a generous salary package is on offer including 30 days holiday and Share options. Working with engineers to deliver hosted tools to deliver results more effectively, the successful Linux Systems Administrator / Linux Infrastructure Engineer will have significant influence on the choice of deployment technology for the backends. Your responsibilities will include Compliance and security of IT systems, installing server hardware, supporting HPC / machine learning workloads behind APIs as well as maintaining internal compute systems. Previous experience of working within an AI orientated company is highly beneficial. Your knowledge and skills should include: Proven Linux Server Management experience (they use Ubuntu). Experience across Bare metal and cloud Servers. Container based deployment such as Kubernetes, Podman or Docker. Python scripting for automation. Server networking, VLANs, DNS, firewalls. Experience with operating distributed computing or HPC cluster environments. VPNs ( company uses Wireguard). Large data storage. Competence in hardware diagnostics and component replacement. Windows and Entra, support of macOS. Flexible approach with a willingness to undertake some help desk duties. If you are a highly experienced Linux Systems Administrator / Linux Infrastructure Engineer and have an interest with physics based simulation and are keen to support ML / AI systems, this is a great opportunity to be part of a thriving Company where technology meets sustainability. The role will involve occasional travel to both Cambridge and Stevenage.

Innovative Technology start-up in the Sustainability sector seeks an open-minded Linux Infrastructure Engineer to maintain internal systems and provide a compute platform to operate their simulation, optimization and AI technology at scale. You'll also have the opportunity to support some exciting research. You should have strong Linux server management experience, ideally across bare metal and Cloud servers, have experience of HPC Cluster environments and be familiar with infrastructure of code. Hybrid working and a generous salary package is on offer including 30 days holiday and Share options. Working with engineers to deliver hosted tools to deliver results more effectively, the successful Linux Infrastructure Engineer / Systems Administrator will have significant influence on the choice of deployment technology for the backends. Your responsibilities will include Compliance and security of IT systems, installing server hardware, supporting HPC / machine learning workloads behind APIs as well as maintaining internal compute systems. Previous experience of working within an AI orientated company is highly beneficial. Your knowledge and skills should include: Proven Linux Server Management experience (they use Ubuntu). Experience across Bare metal and cloud Servers. Container based deployment such as Kubernetes, Podman or Docker. Python scripting for automation. Server networking, VLANs, DNS, firewalls. Experience with operating distributed computing or HPC cluster environments. VPNs ( company uses Wireguard). Large data storage. Competence in hardware diagnostics and component replacement. Windows and Entra, support of macOS. Flexible approach with a willingness to undertake some help desk duties. If you are a highly experienced Linux Infrastructure Engineer / Systems Administrator and have an interest with physics based simulation and are keen to support ML / AI systems, this is a great opportunity to be part of a thriving Company where technology meets sustainability.

Linux Engineer London / Colchester Permanent - Hybrid Up to £70,000 + bonus VIQU have partnered with a leading technology-driven organisation seeking a Linux Engineer to join their growing Technology team. This is a hands-on, technically focused role where the Linux Engineer will support and optimise a mission-critical SAP HANA platform running on SUSE Linux Enterprise Server, while also contributing to cloud integration with Microsoft Azure. The role blends BAU support with project delivery, providing scope to influence platform improvements and work alongside a skilled infrastructure and DevOps team. Key Responsibilities: • Manage and maintain SUSE Linux Enterprise Server (SLES) environments. • Monitor systems, troubleshoot issues, and optimise performance. • Ensure system security and compliance with industry standards. • Automate tasks using Bash, Python, or Perl scripts. • Design, deploy, and manage Linux workloads in Azure. • Implement and manage virtual networks, storage, and Azure resources. • Ensure high availability and disaster recovery of critical systems. • Use Azure DevOps for CI/CD pipeline automation and infrastructure as code (IaC). • Collaborate with developers, DBAs, and network engineers to provide technical guidance. • Document system configurations, procedures, and troubleshooting steps. Key Requirements: • Proven experience as a Linux Administrator, ideally with SLES. • Hands-on SAP HANA administration and optimisation experience. • Proficiency with Microsoft Azure, including ARM templates, Azure CLI, and PowerShell. • Strong scripting skills (Bash, Python, Perl) for automation. • Experience supporting large-scale enterprise environments. • Excellent problem-solving and collaboration skills. • SUSE or Microsoft Azure certifications are a plus. Apply today to speak with VIQU in confidence or contact Belle Hegarty via the VIQU website Know someone exceptional for this Linux Engineer position? Refer them and receive up to £1,000 if successful (terms apply). Follow us on LinkedIn IT Recruitment for more exciting opportunities.

This role is Inside IR35 The Lightning Systems Integration Facility (LSIF) is established at the Maritime Integration & Support Centre (MISC) on Portsdown Hill, Portsmouth, to support testing and integration of the F35 Lightning II Aircraft within the UK military infrastructure. A UKLTI System Administrator is required to administer, patch, secure and maintain the LSIF systems within the MISC environment, prepare the systems in line with testing requirements, and occasionally implement changes to the facility and established infrastructure. A major function of the role is the maintenance of government furnished computer equipment (including large servers). As part of this, the liaison and effective communication between suppliers, owners, partners and users is crucial in ensuring the equipment is available to the right groups at the right time. The role will require good organisational and communication skills on top of technical ability covering a range of technologies. The incumbent will be provided training on how to use the proprietary systems and will be expected to become well versed in using and administering them. Typical duties include (but are not limited to): Administration and maintenance of hardware, software, and networks Implementation of changes to hardware, software and networks Assisting with system preparation in line with customer and project requirements Assisting with security and export control matters (including ITAR and IVCO) Assisting with the planning, execution and reporting of testing events Assisting with longer-term facility planning Assisting with procurement and management of LSIF hardware and software Configuration control of assets, documents, change requests etc Knowledge: Server Administration, including Active Directory, DNS, Group Policies, Disk Management, updating via WSUS as well as knowledge of Microsoft hypervisor and the ability to implement and manage a virtual environment. Experience of auditing system log files and anti-virus monitoring using monitoring tools such as SolarWinds NPM/Observability, Kiwi Syslog, Splunk and Trellix ePO Some experience with networking vendors such as Cisco, FortiGate. Experience configuring, troubleshooting and upgrading network devices and knowledge of LAN and WAN infrastructure (switches, routers, firewalls). Ability to physically install Servers, workstations and network devices, and to perform cable management to MoD Standard Ability to design, plan, implement and manage integration of separate IT systems, including at different security classifications. Knowledge of ITAR, EAR, DEAL, SCIDA accreditation requirements of JSP 440 and 480, etc. Experience of ITIL processes and procedures. General IT trouble shooting skills Some knowledge of Linux, and / or containerisation, as well as JIRA and Confluence would also be preferred although is not vital Skills: Ability to learn to use new technology including proprietary software and systems when required Ability to work as part of a team Ability to communicate with other team members, suppliers and customers Ability to document changes and troubleshooting steps taken Ability to prioritise work based on customer requirements and project/team objectives

We are looking for an established IT Manager for an established and rapidly growing digital business. You will be responsible for the stability, security and performance of its core IT infrastructure. Reporting to the Technology Director, this role will lead the management and continuous improvement of the organisation's office IT environment, including servers, networks, infrastructure and end-user systems. This is a hands-on leadership role in a security-conscious, high-value operational environment where reliability, operational discipline and strong technical governance are essential. You will also manage a Systems Administrator, providing technical oversight, guidance and professional development while ensuring the smooth operation of day-to-day IT services. Key Responsibilities Own and manage the company's IT infrastructure, including servers, networks, office systems and end-user technology Ensure the availability, performance and reliability of all core systems and services Provide line management and technical leadership to the Systems Administrator Manage and maintain office infrastructure, including routers, switches, Wi-Fi, CCTV and VoIP systems Oversee monitoring, backup, disaster recovery and business continuity processes Manage the end-user hardware lifecycle, including laptop procurement, MDM provisioning and secure on boarding/off boarding Support business-critical systems in collaboration with Technology, Finance and Operations teams Deliver infrastructure upgrades, system improvements and technology projects Maintain accurate documentation for architecture, processes and infrastructure controls Manage patching, updates and system maintenance across infrastructure platforms Oversee relationships with external IT suppliers, hosting providers and technology partners Support the business in maintaining security compliance and best practice frameworks Identify risks, vulnerabilities and opportunities for operational improvement across infrastructure and security controls Skills & Experience Strong experience managing IT infrastructure in complex business environments Experience supporting Windows environments and device management using Intune Microsoft 365 administration including Entra ID Hands-on experience managing VoIP / telephony systems Experience supporting corporate Wi-Fi and local network environments Solid understanding of networking fundamentals including firewalls, VPNs, DNS and routing Experience implementing role-based access controls and security best practices Experience managing backup, disaster recovery and monitoring solutions Strong troubleshooting and problem-solving across infrastructure and systems Ability to maintain clear technical documentation and operational processes High levels of integrity, accountability and attention to detail Desirable Experience in e-commerce or high-value transactional environments Cyber security or infrastructure certifications (Microsoft, Cisco, CompTIA, CISSP etc.) Experience supporting Cyber Essentials, ISO 27001 or similar frameworks Linux server administration experience Benefits Bonus scheme up to 30% 25 days holiday + 8 bank holidays (option to buy an additional 5 days) On-site gym Health & well-being programme Employee discount scheme Why Apply? High ownership role with direct responsibility for critical infrastructure and security Opportunity to lead and develop a technical team Exposure to a fast-growing digital business environment Ability to influence systems, processes and operational resilience Work within a culture that values integrity, accountability and operational excellence At Gleeson Recruitment Group, we embrace inclusivity and welcome applicants of all backgrounds, experiences, and abilities. We are proud to be a disability confident employer. By applying you will be registered as a candidate with Gleeson Recruitment Limited. Our Privacy Policy is available on our website and explains how we will use your data.

Sybase Database Administrator (Contract) Duration: 12 Months (Possibility for extension) Location: Bromley/Hybrid (3 days per week on site) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates Role Profile We are a leading player in the Investment Banking sector, committed to delivering excellence through innovative solutions and cutting-edge technology. Our EMEA Sybase team is expanding, and we are on the lookout for a skilled Sybase Database Administrator (DBA) to join us on a contract basis. If you thrive in high-stakes environments and have a passion for database management, we want to hear from you! Key Responsibilities: Installing, configuring, and maintaining Sybase ASE and Replication Server environments. Managing database upgrades, patching, migrations, and version lifecycle activities. Overseeing platform migrations from RHEL7/8 to RHEL9. Implementing and managing database security, roles, permissions, and auditing. Monitoring database environments to identify and resolve performance bottlenecks. Optimizing SQL queries, indexes, server configurations, and resource allocation. Diagnosing and resolving blocking, deadlocks, contention, and execution plan issues. Maintaining and improving backup and recovery strategies using Sybase Backup Server. Supporting high-availability and replication architectures, including DR environments. Conducting regular recovery testing and ensuring compliance with DR procedures. Providing L2/L3 support for production and non-production database incidents and requests. Collaborating with development and application teams on schema changes, data insights, and integration. Creating and maintaining automation scripts for routine tasks. Participating in an on-call rotation to provide out-of-hours support for critical production systems. Developing and maintaining detailed documentation for configurations, processes, and operational procedures. Ensuring all database environments comply with security, governance, and compliance standards. Supporting internal and external audits with necessary evidence and reporting. Skills and Experience: Hands-on experience as a Sybase DBA in enterprise environments. Deep expertise in Sybase ASE administration, tuning, troubleshooting, and configuration. Strong experience with Sybase Replication Server. Advanced SQL skills, including query tuning and a solid understanding of execution plans. Proven experience supporting high-availability, 24/7 production environments. Proficiency with Unix/Linux systems and shell scripting. Strong analytical, diagnostic, and problem-solving skills. Ability to work independently in a contract role with minimal supervision. Excellent communication skills, comfortable engaging with senior management, application support, developers, and fellow technologists. Experience with cloud platforms (Azure, AWS) or database migration projects. Familiarity with other database technologies such as SQL Server and/or Oracle. Experience in the large-scale financial services enterprise sector. Exposure to automation tools (Python, Ansible) and DevOps practices. Candidates will need to show evidence of the above in their CV in order to be considered. If you feel you have the skills and experience and want to hear more about this role 'apply now' to declare your interest in this opportunity with our client. Your application will be observed by our dedicated team. We will respond to all successful applicants ASAP however, please be advised that we will always look to contact you further from this time should we need further applicants or if other opportunities arise relevant to your skillset. Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. As part of our standard hiring process to manage risk, please note background screening checks will be conducted on all hires before commencing employment. We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention.

eDV DevOps Engineer / Site Reliability Engineer (SRE) - AWS, Kubernetes - Contract Outside IR35. . We are supporting a specialist engineering consultancy delivering secure technology platforms to high-profile UK government organisations. They are seeking an eDV Cleared DevOps Engineer / Site Reliability Engineer (SRE) with strong experience across AWS, Kubernetes, Terraform, CI/CD and Linux environments to support the continued growth of critical cross-domain systems. This contract role will focus on improving platform reliability, automation, infrastructure as code, observability and DevOps practices across both cloud and on-premise environments. You will work closely with software engineers, platform engineers and operations teams to ensure highly secure, scalable and resilient systems supporting sensitive government programmes. Location: Cheltenham (Hybrid - 3 days onsite) Rate: 500- 650 per day Outside IR35 Security Clearance: Active eDV Clearance required Start Date ASAP As a DevOps / Site Reliability Engineer, you will be responsible for ensuring the availability, performance, and reliability of services supporting sensitive government programmes. You will collaborate with multiple feature development teams and BAU/support teams to evolve both cloud and on-premise infrastructure, delivery pipelines, and observability tooling. The role will focus on improving system reliability, monitoring, automation, and performance, while proactively identifying and mitigating operational risks. This position may also involve participation in an on-call rota, which could include occasional 24/7 call-out support. Key Responsibilities: Collaborate with software engineering teams to improve subsystem reliability and performance. Work with system administrators to automate operational processes and reduce manual effort. Enhance monitoring and observability capabilities to proactively detect and resolve issues. Support development environments to improve delivery speed and quality. Contribute to the evolution of infrastructure, DevOps practices, and CI/CD pipelines. Research and evaluate new technologies and tools to support engineering decisions. Develop expertise across multiple technical and business domains. Required Skills & Experience Active eDV clearance is essential configuration management tools such as Ansible, Chef, or similar Strong Terraform Docker containers and container orchestration platforms (Kubernetes, OpenShift, Docker Swarm) maintaining and using CI/CD tooling such as Jenkins Monitoring and observability experience with Prometheus, Grafana, or InfluxDB event-driven integration and messaging systems such as RabbitMQ or other AMQP solutions Strong Linux command line, administration, and shell scripting experience Solid understanding of relational databases and SQL network security protocols Working with cloud platforms, ideally AWS (EC2, RDS, S3, Lambda) Azure a plus Please send your CV to Laura at (url removed) to progress matters. Services Advertised are those of Employment Business.

Innovative Technology start-up in the Sustainability sector seeks an open-minded Linux Systems Administrator to maintain internal systems and provide a compute platform to operate their simulation, optimization and AI technology at scale. You ll also have the opportunity to support some exciting research. You should have strong Linux server management experience, ideally across bare metal and Cloud servers, have experience of HPC Cluster environments and be familiar with infrastructure of code. Hybrid working and a generous salary package is on offer including 30 days holiday and Share options. Regular travel to Cambridge and Stevenage required. Working with engineers to deliver hosted tools to deliver results more effectively, the successful Linux Systems Administrator will have significant influence on the choice of deployment technology for the backends. Your responsibilities will include Compliance and security of IT systems, installing server hardware, supporting HPC / machine learning workloads behind APIs as well as maintaining internal compute systems. Previous experience of working within an AI orientated company is highly beneficial. Your knowledge and skills should include: Proven Linux Server Management experience (they use Ubuntu). Experience across Bare metal and cloud Servers. Container based deployment such as Kubernetes, Podman or Docker. Python scripting for automation. Server networking, VLANs, DNS, firewalls. Experience with operating distributed computing or HPC cluster environments. VPNs ( company uses Wireguard). Large data storage. Competence in hardware diagnostics and component replacement. Windows and Entra, support of macOS. Flexible approach with a willingness to undertake some help desk duties. If you are a highly experienced Linux Systems Administrator and have an interest with physics based simulation and are keen to support ML / AI systems, this is a great opportunity to be part of a thriving Company where technology meets sustainability.

Systems Administrator An exciting opportunity for Systems Administrators to join an innovative stealth start-up in Saffron Walden, who are tackling some of the world s most pressing challenges. Joining a company founded by experts in their field, who have already realised success with other start-ups, this offers the chance to support the infrastructure in an environment filled with technological innovation. Location: Saffron Walden, UK fully on-site due to the nature of the role Salary: Negotiable depending on experience Requirements for Sys Admin: Commercial experience with either Windows or Linux Server Administration (opportunities available on both sides) Degree educated with good academics Strong problem-solving ability, with a proactive nature in asking questions to expand your knowledge Proficient in scripting languages such as Python and Bash Understanding of networking protocols and security protocols Any experience with macOS environments and their administration would be helpful You must be in a position to qualify for SC Clearance due to the nature of some projects Responsibilities for Sys Admin: Set up, manage, and maintain Linux server environments, ensuring optimal performance and high availability. Apply security best practices across all systems, performing regular audits and updates. Support devices on Windows and macOS, ensuring smooth integration and functionality. Develop centralised administration processes to improve efficiency and control. Automate workflows using scripting and configuration management tools. Work closely with development teams to deploy and manage applications and services. Maintain a focus on standardisation and precision in system configurations and documentation. What this offers: An opportunity to join a success story in the making Working in a highly innovative environment Great remuneration Applications: If you would like to enquire about this unique Sys Admin opportunity, we would love to hear from you. Please send an up-to-date CV. We re committed to creating an inclusive and accessible recruitment process. If you require reasonable adjustments for your application or during the review process, please highlight this by separately emailing (if this email address has been removed by the job board, full contact details are readily available on our website). RedTech Recruitment Ltd focuses on finding roles for Engineers and Scientists leaving academia entering industry. Even if the above role isn t of interest, please visit our website to see our other opportunities. We are an equal opportunity employer and value diversity at RedTech. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Role: Oracle 11g DBA Location: UK remote Clearance: Active SC Clearance required Outside IR35 Rate 500.00 pd Role Overview We are seeking an experienced Oracle 11g Database Administrator to join a structured production support team responsible for maintaining business critical systems operating within a 24 by 7 live service environment. This role focuses on operational stability, incident resolution, performance optimisation and secure database management across a high availability Oracle estate. Responsibilities Provide production support for Oracle 11g databases within a 24 by 7 live service environment Diagnose and resolve incidents, including priority and major incidents Perform database performance tuning and optimisation Manage RMAN backup and recovery processes Support Data Guard and disaster recovery arrangements Implement database changes through controlled change management processes Apply security patches and maintain compliance standards Produce and maintain operational documentation and support runbooks Skills and requirements: Strong hands on experience supporting Oracle 11g in a 24 by 7 production environment Proven expertise in RMAN backup and recovery Experience with Oracle Data Guard Solid SQL and PL SQL capability Experience of performance diagnostics and tuning Experience supporting Oracle on Linux or Unix platforms Familiarity with ITIL aligned service management processes Experience supporting high availability and mission critical systems Desirable Skills: Experience with OEM, ASM or RAC Exposure to later Oracle versions Scripting capability in Shell or Python Experience within regulated or high assurance environments

Innovative Technology start-up in the Sustainability sector seeks an open-minded Linux Systems Administrator / Linux Infrastructure Engineer to maintain internal systems and provide a compute platform to operate their simulation, optimization and AI technology at scale. You ll also have the opportunity to support some exciting research. You should have strong Linux server management experience, ideally across bare metal and Cloud servers, have experience of HPC Cluster environments and be familiar with infrastructure of code. Hybrid working and a generous salary package is on offer including 30 days holiday and Share options. Working with engineers to deliver hosted tools to deliver results more effectively, the successful Linux Systems Administrator / Linux Infrastructure Engineer will have significant influence on the choice of deployment technology for the backends. Your responsibilities will include Compliance and security of IT systems, installing server hardware, supporting HPC / machine learning workloads behind APIs as well as maintaining internal compute systems. Previous experience of working within an AI orientated company is highly beneficial. Your knowledge and skills should include: Proven Linux Server Management experience (they use Ubuntu). Experience across Bare metal and cloud Servers. Container based deployment such as Kubernetes, Podman or Docker. Python scripting for automation. Server networking, VLANs, DNS, firewalls. Experience with operating distributed computing or HPC cluster environments. VPNs ( company uses Wireguard). Large data storage. Competence in hardware diagnostics and component replacement. Windows and Entra, support of macOS. Flexible approach with a willingness to undertake some help desk duties. If you are a highly experienced Linux Systems Administrator / Linux Infrastructure Engineer and have an interest with physics based simulation and are keen to support ML / AI systems, this is a great opportunity to be part of a thriving Company where technology meets sustainability.

Title: Linux Systems Administrator - Red Hat, RHEL, Ubuntu, VMware, Data Centre Location: Remote Salary: Up to 65,000 per annum + On-call (1 in 5) Type: Permanent Job Summary: Charles Simon Associates is seeking an experienced Linux Systems Administrator to join one of our existing clients, who is a global leader in the logistics industry. The successful candidate will manage, maintain, and optimise Linux servers in virtualised and cloud environments, while ensuring high availability, disaster recovery readiness, and seamless collaboration with cross-functional teams. This is a hands-on role with exposure to cutting-edge technologies in storage, virtualisation, and cloud infrastructure. Key Responsibilities: Install, configure, and manage Linux servers (RHEL, CentOS, Ubuntu, Oracle Linux) using automation where possible Maintain high availability and performance of Data Centre and Cloud systems, minimising disruption due to change or incidents Configure, manage, and monitor SAN storage, Blade Server infrastructure, and related hardware Administer VMware environments (vSphere, ESXi, vCenter), including VM deployment, migration, snapshots, and performance tuning Configure and maintain Data Protection platforms such as Commvault, Dell EMC Networker, and Zerto Collaborate with DBA, Network, Application, Systems, and Service Desk teams on projects, upgrades, migrations, and architecture improvements Conduct regular Disaster Recovery (DR) testing and maintain comprehensive DR documentation Monitor system performance, carry out capacity planning, and optimise resources for compute and storage environments Maintain up-to-date documentation, diagrams, and runbooks for all systems and processes Participate in out-of-hours on-call rotation (1 in 5) and respond to critical incidents Stay current with emerging trends, best practices, and new technologies in Linux, virtualisation, storage, and cloud computing Required Skills & Experience: Extensive Linux administration experience (RHEL preferred) VMware administration (vSphere, ESXi, vCenter) Data Centre operations experience with Blade Servers and SAN storage Strong understanding of high availability, disaster recovery, and Cloud infrastructure principles Experience with automation tools, monitoring, and scripting (shell, Python, Ansible, etc.) Excellent problem-solving, communication, and teamwork skills Ability to work in a fast-paced, dynamic environment and handle critical incidents efficiently Start Date: ASAP

An exciting opportunity has arisen for a Senior Infrastructure Engineer to join a highly respected organisation at the forefront of building London's next-generation business fibre network. This role offers you the chance to play a pivotal part in shaping the future of connectivity for some of the most important organisations across the UK and Europe. SENIOR INFRASTRUCTURE ENGINEER Salary: £60,000 - £70,000Location: London What you'll do: As a Senior Infrastructure Engineer, you will play an essential role in ensuring the secure operation and continuous improvement of the systems infrastructure supporting critical business operations. Your day-to-day activities will involve balancing hands-on technical tasks-such as configuring hypervisors or deploying new applications-with strategic planning around automation and monitoring. You will be responsible for developing robust internal tools that drive efficiency across environments while also participating in incident response duties as part of an on-call rota. Success in this position requires not only deep technical expertise but also strong communication skills for producing clear documentation and collaborating with colleagues. By proactively identifying areas for enhancement within the infrastructure landscape-and implementing solutions that uphold rigorous security standards-you will help maintain the organisation's reputation for reliability while contributing meaningfully to its ambitious growth plans. Maintain, configure, and ensure reliable operation of hypervisor platforms, virtual machines, containers, bare-metal servers, and all hosted applications within these environments. Develop and sustain internal monitoring solutions, automation scripts, and dashboards that enhance consistency, repeatability, and visibility across multiple infrastructure environments. Deploy new systems and applications to underpin both network infrastructure and customer environments in line with internal standards, security protocols, and industry best practices. Participate in an on-call rota to provide timely incident response and resolution for critical infrastructure issues as they arise. Produce clear, professional diagrams and documentation that accurately reflect system architecture and operational processes for both technical teams and stakeholders. Collaborate closely with cross-functional teams to ensure seamless integration of new technologies into existing infrastructure while maintaining high standards of reliability. Diagnose complex technical issues using a methodical approach to troubleshooting that minimises downtime and ensures service continuity. Prioritise multiple tasks effectively by balancing hands-on technical work with higher-level planning responsibilities. Contribute to ongoing process improvement initiatives by identifying opportunities for increased automation or enhanced monitoring capabilities. Stay up-to-date with emerging trends in infrastructure engineering to recommend improvements that align with organisational goals. What you bring: Demonstrated experience as a systems administrator or similar role within relevant industries such as telecommunications or enterprise IT services. Advanced proficiency working with Linux/Unix systems (including RedHat and Debian variants) alongside experience managing Windows Server and Desktop environments. Strong scripting abilities using Bash, Powershell, or Ansible; familiarity with Python is considered advantageous for further automation initiatives. Expertise in virtualisation platforms as well as container orchestration technologies-including associated tooling-to optimise resource utilisation across diverse workloads. Hands-on knowledge of monitoring stacks such as Prometheus or Grafana along with log management solutions like ELK/EFK or their equivalents. Proven ability to diagnose intricate technical problems using structured troubleshooting methodologies that minimise disruption to business operations. Exceptional organisational skills enabling effective prioritisation of concurrent tasks within fast-evolving infrastructure landscapes. Excellent written communication skills evidenced by the production of clear diagrams and professional documentation suitable for both technical audiences and stakeholders. A collaborative mindset with a willingness to share knowledge openly while supporting colleagues' development within a communal team environment. A commitment to upholding high standards of security compliance throughout all aspects of infrastructure management. Apply today by clicking on the link below-your journey towards making a lasting impact starts here. Robert Walters Operations Limited is an employment business and employment agency and welcomes applications from all candidates

Windows Server Systems Administrator Windows Server, VMware, Active Directory, AWS, DNS £40,000 - £52,000 Hybrid - 2 Days per week in the Southampton office Windows Server Systems Administrator required to join a leading international Software Business committed to delivering high-performance IT solutions. This is a large operation and will be working within a 24/7 production environment with 85% of your time being Windows Server and 15% VMware. As a Windows Server Systems Administrator you will maintain and contribute to the ongoing reliability, performance and support of the infrastructure. This includes monitoring the operating environments, responding to incidents, problems and helping other teams as necessary. These roles have been created by team expansion and new client wins. Key Responsibilities: Manage, troubleshoot and maintain Windows Server environments Be part of a 24/7 production environment of around 25 engineers in this team Support multiple systems or applications of medium to high complexity Manage Mail, DNS, FTP, IIS and Application environments Participate in the On-Call rotation Work with cabling, racking and other tasks in Physical Data Centres Communicate events to stakeholders, teams and leadership Skills Required: 4+ Years Windows Server Administration Experience (100+ Servers) VMware Active Directory AWS SAN Storage DNS Production Environment Experience Linux Microsoft Certified, VMware Certified or AWS Certified would be desirable If you have the relevant skills for this role and are ready for the challenge, then please send your CV to Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Do you have strong MySQL DBA skills? Are you looking for a role with autonomy and projects? Superb opportunity to join a long-established, award-winning household name brand as a MySQL Database Administrator . This is a key permanent hire where you'll take ownership of a complex on-premise database estate and play a central role in modernising their technology stack. The Opportunity This isn't a "ticket-queue" DBA role, you'll be joining a close-knit systems team as the trusted as the go-to database expert. Your work will directly impact high-volume, business-critical platforms, giving you real visibility and the chance to make a measurable difference from day one. What's on offer High-impact environment: Manage databases that power thousands of daily customer transactions. Tech modernisation: Hands-on involvement in major upgrades Autonomy: Scope to shape how performance tuning, replication, and HA are managed. Lifestyle benefits: Free daily lunch, heavily discounted products, cycle-to-work and EV leasing schemes, staff events, and long-service awards. Job Security: financially secure successful well established and highly ethical company Key Responsibilities Performance tuning of MySQL databases across a large on-premise estate. Managing replication and HA, ensuring fast recovery and minimal downtime. Proactive monitoring and optimisation. Maintaining reliable backup and recovery procedures. Collaborating with developers, analysts and the wider IT team on schema design and deployments. Supporting infrastructure upgrades and patching programmes. Candidate Profile Strong MySQL administration experience (performance tuning, HA, replication). Confident with Linux/Unix (Red Hat preferred). Comfortable in a busy on-premise environment. Familiarity with monitoring and backup tools. Desirable: SQL Server administration and storage optimisation experience. Apply now for a confidential conversation. We'll walk you through the details of the company, team culture and interview process, and help you present your experience in the strongest way.

Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Join Our Team as an Endpoint Security Engineer! Are you ready to make a meaningful impact in the utilities industry? Our client, a leader in energy solutions, is on the lookout for a talented Endpoint Security Engineer to join their dynamic team on a fixed-term contract for 6 months. This is your chance to be part of a dedicated group working towards a cleaner, greener energy future! Role: Endpoint Security Engineer Duration: 6 Months (extension options) Location: Plymouth or Exeter (Hybrid 2 days a week on-site) Rate: 700 per day (umbrella) About the Role: As an Endpoint Security Engineer, you will play a vital role in safeguarding our Operational Technology (OT) and Information Technology (IT) environments. Your expertise will help identify risks and vulnerabilities while developing effective strategies to mitigate them. You'll help us achieve our vision of being a world-leading Information Technology and Digital function in the energy sector. What You'll Do: Administer and maintain the End Point Security platforms (Tanium & Sentinel One) across enterprise environments. Deploy, configure, and manage End Point Security, including Tanium modules such as Asset, Patch, Deploy, Threat Response, and Comply. Monitor system performance to ensure high availability and reliability of security services. Develop and maintain dashboards, reports, and queries to support IT operations and security teams. Collaborate with cross-functional teams to integrate security services with other IT tools. Conduct regular audits and ensure compliance with internal and external security standards. Troubleshoot and resolve issues related to endpoint visibility, patching, and software deployment. Provide training and support to internal teams on best practices in End Point security services. Stay current with Tanium/Sentinel One updates, features, and industry trends. About You: You hold a Tanium Certified Administrator (TCA) certification. Proven experience administering Tanium and other End Point security products in a medium to large enterprise environment. Eligible for SC Clearance. Strong understanding of endpoint management, cybersecurity principles, and IT operations. Experience with scripting languages (e.g., PowerShell, Python) for automation and reporting. Familiarity with Windows, Linux, and MacOS operating systems. Excellent problem-solving and communication skills. Ability to work independently and collaboratively within a team. Why Join Us? This is not just a job; it's an opportunity to contribute to a sustainable future! You'll be part of an innovative team that values your skills and ideas while providing you with the support you need to thrive. Ready to embark on this exciting journey? Apply now and be a part of something bigger-together, we are superpowered! We look forward to welcoming you to our team! Candidates will ideally show evidence of the above in their CV to be considered. Please be advised if you haven't heard from us within 48 hours then unfortunately your application has not been successful on this occasion, we may however keep your details on file for any suitable future vacancies and contact you accordingly.