CBSbutler Ltd.

A technology services firm is seeking a Network Engineer to maintain and implement networking solutions. This remote role, requiring occasional travel to Maidstone, demands proven skills in Cisco and Aruba systems, with SC clearance mandatory. The candidate is expected to have 5-10 years of relevant experience, troubleshooting LAN/WAN systems, and technical infrastructure. A daily rate of £425-£450 is offered.

A UK-based defence contractor is seeking a Security Project Manager for a long-term contract in Warton. This position requires current MOD DV clearance and focuses on managing security-related projects in a classified environment. The role includes planning, risk management, and ensuring compliance with MOD standards. Applicants should have experience in defence environments and strong stakeholder management skills. The rate offered is up to £680 per day inside IR35.

A leading tech staffing firm is seeking an Automation Test Engineer skilled in Identity and Access Management (IAM). This role involves creating a strong testing strategy emphasizing automation, developing test frameworks, and managing CI/CD pipelines. Candidates should have a minimum of 3 years' experience in automation roles and a solid coding background in various programming languages. The position offers a hybrid working model, requiring on-site presence 3 days a week.

Infrastructure Architect - Exchange/Email focussed Requirements Requires DV Clearance Will be a long term contract Outside IR35 £550 to £600 per day Mainly remote working with some travel Key Skills: Security - DV cleared, sole UK National with no caveats) Email protocol, routing & security Exchange, Active Directory, DNS, DHCP Essential Experience of email protocols, routing, security labelling and compliance with UK and CCEB policies Experience of generating test scripts and supervising testing for email technologies Experience of validating design proposals and conducting impact assessments Experience of monitoring and advising on Quality of Service (QoS) for live services Desirable Familiar with the MODICS change processes

A leading IT and digital transformation company is seeking a Senior ITSM Tooling Architect in Basingstoke. This role entails driving the design and delivery of ITSM tooling solutions, managing a dynamic team, and ensuring the implementation of secure IT systems. Candidates must have extensive experience with ITSM technologies like ServiceNow and relevant certifications. The total package can reach up to £103,500, including a car allowance and bonus. Applicants should be willing to undergo DV clearance.

Overview SC Cleared SIEM/EDR Engineer Contract - Hybrid Reading (3 days onsite) - Immediate Start We need a Cyber Security engineer with strong SIEM experience to join a high priority, long term rolling cyber programme (major global consultancy, household name end client) and we need an experienced SIEM Engineer to start as soon as possible, but we can wait for notice periods given the long term nature of this project. Key highlights Rolling contract for 12 months, with budget already committed Hybrid working, 3 days per week on site in the Reading area, 2 working from home Modern Cyber Security environment e.g. Microsoft Sentinel, Elastic ELK stack, Tanium, Trellix, Defender, custom log ingestion, KQL, Python/PowerShell scripting Heavy focus on Linux, syslog architecture, custom integrations, threat hunting and detection engineering Active SC clearance is mandatory What we're looking for Strong background in Cyber Security Engineering Solid hands on experience deploying and managing SIEM + EDR platforms Strong syslog/Linux skills If you're interested please send through your latest CV and current availability and I'll give you a call as soon as I'm free.

A leading technology solutions provider in Sheffield is seeking an engineer for the Core Platform Engineering Team. This hands-on role involves delivering engineering and operational support across a large-scale hybrid server environment. The ideal candidate will have solid knowledge of Linux, networking, and Kubernetes, along with experience in automation using tools like Python and Ansible. Join a team focused on continuous improvement and enhancing core platform operations.

Security Infrastructure Engineer +6 months + +Hybrid in Corsham +Inside IR35 +£500 - £580 a day +SC / DV cleared role Key Skills: SC / DV clearance Vmware Linux Cyber Security MOD experience Security Infrastructure Engineer to support the Security Team in the installation, configuration, maintenance, and update of servers and software components. Working closely with the Project Manager (PM), Technical Design Architect (TDA), Security Assurance Coordinator (SAC), and wider engineering teams, you will play a key role in delivering compliant, accredited, and secure infrastructure solutions within a complex defence environment. Responsibilities Support the installation, configuration, administration, and maintenance of secure infrastructure and software components. Work with the PM, TDA, and engineering teams to produce system security engineering designs, solutions, and documentation. Act as the primary security engineering conduit between PM, SAC, TDA, and engineering teams to ensure compliant security solutions. Attend and contribute to regular governance and review meetings, including the Security Working Group (SWG). Engage with stakeholders and dependent projects to deliver coordinated security engineering solutions supporting accreditation and registrations Contribute to the Security Accreditation Plan in coordination with the Project SAC. Validate engineering designs against JSP 453 / JSP 604, providing supporting evidence and documentation. Identify security risks, recommend mitigations, and advise on secure design decisions. Provide advice on in-service and emerging cyber security technologies, including cost, risk, and benefits analysis. Essential Knowledge, Skills & Experience Strong experience in security infrastructure engineering within secure or regulated environments. Infrastructure access control expertise, including: Ubuntu / Linux system administration LDAP design and management RADIUS / TACACS configuration Proven experience supporting the installation, configuration, administration, and support of secure infrastructure solutions. Strong understanding and administration of PKI hierarchies. Knowledge of security frameworks including NIST CSF, ISO 27001, and MOD Secure by Design (SbD). Experience providing security input to: Virtualisation technologies (VMware ESXi 8, vCentre 8) Network infrastructure (Cisco IOS-XE, ASA, BGP, VRF/MPLS, VPN, QoS) Clear understanding of JSP 604 / JSP 453 network security engineering compliance. Highly Desirable Qualifications Cyber security certifications such as: CompTIA Security+ GIAC Security Essentials (GSEC) Systems Security Certified Practitioner (SSCP) Desirable Skills & Experience Scripting and automation (Python, PHP). Delivery in high-pressure, complex organisational environments. Writing and analysing technical and security requirements. Supporting product selection against cost, performance, and timescale constraints. Experience working within large, multi-disciplinary technical teams. Knowledge of Cyber Essentials / Cyber Essentials Plus. Experience with penetration testing and system security assurance. In-date professional registration (e.g. APMG, CIISec). Experience delivering secure solutions within the UK public sector, ideally Defence Digital. Delivery experience across Agile (SAFe4) and Waterfall methodologies. Knowledge of SCOM.

A leading technology recruitment agency is seeking an Infrastructure Architect focused on Exchange and email technologies. The ideal candidate will have DV clearance and significant experience in email protocols, routing, and security compliance. Responsibilities include generating test scripts, validating designs, and ensuring Quality of Service (QoS) for live services. The position offers a competitive daily rate and primarily remote work with some travel involved.

Job Title: Automation Test Engineer Location: Sheffield/Hybrid (3 days per week on site) Duration: 12 months+ Rate: £435 per day inside ir35 Role Summary We are looking for a highly skilled Automation Test engineer with strong expertise Identity and Access management (IAM), skilled in identity orchestration, API testing, data ingestion and transformation, and event-driven (Pub/Sub) architectures. Key Responsibilities Working with the Lead automation architect in the creation of an overall testing strategy where the focus is Automation First with minimal manual effort required. Plan, develop, execute, maintain and improve Automated Test Framework and Automated Test Scripts for Web and Graph Database applications Jenkins pipeline creation and management for running automated tests, generating reports and notifying team about test results to streamline the CI/CD process. Able to develop and execute test plans, test cases, test data, test scenarios, and other testing related plans and documentation based on the requirements and technical specifications. Skills required Deep IAM domain knowledge Solid experience of at least 3 years in a senior automation role, skilled in creating frameworks with strong coding experience e.g Java, Playwright, Python, Typescript, Cypher, Scala and API tooling (such as Insomnia, Apidog or Postman) Graph and event-driven validation Automation-first test experience If you are interested in this role or wish to apply, please feel free to reply to this advert or call me on . Many thanks,

Job Title: Linux Administrator Location: On site - Stevenage Duration: 6 months Rate: £475 per day inside ir35 SC security clearance is required for this role Key Responsibilities Application support, including installation and upgrades Provision of HPC resources (mainly for system engineering, e.g. Matlab) Infrastructure administration (Red Hat Linux/Kickstart/VM Ware Systems) Information Management, in liaison with support groups (Data Centre Service, Networks) Hardware diagnostics Shell scripting Management, investigation and resolution of support tickets within the SLA System updates (applications, middleware, database) Required Skills & Experience Linux Administration: RHEL or similar (very strong practical application and experience) Ansible (very strong practical application and experience) Network Protocols (strong practical application and experience) Git (strong practical application and experience) Documentation skills (strong practical application and experience) Red Hat IDM VMWare Podman Desirable Skills Jenkins Storage area networks concepts Redhat Satellite Server Infrastructure monitoring (CheckMK) Software install (3rd party software) CENTOS (legacy versions) Basic Knowledge of Gitlab LDAP/Active Directory If you are interested in this role or wish to apply, please feel free to submit your CV.

Overview Job Title: Senior ITSM Tooling Architect Location: Basingstoke Salary: £78,000 + £6k car allowance, 10% DV allowance and 15% Bonus. Total package up to £103,500 Candidates must be willing and eligible to go through DV clearance for this role Job Summary You will be working for a leading IT and digital transformation organisation operating within the UK defence sector. Their mission is to build a more sustainable world through innovation and trust and are seeking a dynamic ITSM Delivery Lead to manage high-performing teams delivering end-to-end ITSM tooling solutions. Responsibilities As a Senior Information Technology Service Management (ITSM) Tooling Architect you will play a crucial role in ensuring continued delivery excellence in support of our customers Digital Transformation priorities. You will work as part of an Agile team reporting into the Solution Owner to produce design documentation on a wide variety of ITSM tooling solutions which vary in size and complexity. Working alongside a team of dedicated professionals, you will be driven to find better, faster, more effective solutions. You will need to show others that you are an innovative individual who understands the requirements of technical design and deployment of IT systems in secure environments, and that you can deliver solutions of significant size and complexity. Qualifications Extensive experience in the design, installation, configuration and customisation of various ITSM/ITIL/Service Desk Tooling technologies which should ideally include technologies from one or more of the following: CA Service Desk Manager BMC Remedy BMC Helix ServiceNow Extensive experience of working within the bounds of ITSM/ITOM/ITIL/eTOM processes, ideally, with accompanying certifications (e.g. ITIL v4 certified). Extensive knowledge and experience in the design and implementation of highly secure, highly resilient, large scale ITSM tooling solutions for cloud, on-premises and hybrid cloud solutions. A working knowledge of general Information Technology Core infrastructure capabilities including: Windows Server technologies Active Directory and Group Policies SQL and SQL Server Clustering General knowledge of scripting, applications development and data manipulation techniques including: SQL Scripting Powershell JavaScript Benefits 26 Days annual leave plus public holidays (3 flexible) Pension - Double matching contributions of up to 10% Life assurance Companywide incentive plans Your choices (Flexible benefits such as increased holidays / travel / dental critical illness and more) Perks at work - employee discounts Employee assistance programme / virtual GP Role dependent benefits: Private medical / company car or car allowance. If you are interested in this role or wish to apply, please submit your CV.

A leading cybersecurity consultancy in the UK is looking for an experienced Cyber Security Engineer specializing in SIEM and EDR platforms. The role is hybrid, requiring 3 days onsite in Reading and 2 days remote each week. Candidates must possess strong Linux and syslog skills along with mandatory active SC clearance. This is a long-term rolling contract with a budget already committed, making it an excellent opportunity for professionals in the field.

Messaging Specialist Hybrid working in Corsham 6 months + Outside IR35 £500 - £575 a day DV cleared role We are seeking a highly experienced Email SME to support Defence Digital at MOD Corsham. This is a mission-critical role delivering secure communications capability within a sensitive defence environment. Key Responsibilities Lead technical project delivery within MODICS environments. Provide expert input on secure email protocols, routing, and compliance with UK and CCEB policies. Validate technical designs and conduct detailed impact assessments. Develop and supervise test scripts for secure email systems. Monitor Quality of Service (QoS) for live services and make recommendations for improvements. Essential Experience Demonstrable experience as a Technical Project Manager within MODICS. Deep understanding of email protocols, secure routing, security labelling, and compliance frameworks. Strong background in testing and quality assurance for email technologies. Proven ability to validate technical designs and assess their operational impact. Experience monitoring live service performance and advising on QoS. If you'd like to discuss this contract opportunity in more detail, please send your updated CV to and I will get in touch.

A technology recruitment firm is seeking a Storage Project Manager to coordinate schedules and dependencies within the OpenShift migration programme. This hybrid role demands strong communication and stakeholder management skills, along with proficiency in project management tools like MS Project and Jira. Responsibilities include maintaining integrated plans and supporting audit/compliance evidence collection. The position offers £435 per day for a duration of 12 months.

A leading IT recruitment company based in the UK is seeking a proactive DevSecOps Engineer to join a Defence Information Advantage team. This role involves building CI/CD pipelines, operating live systems, and coaching teams in best practices. Candidates should have strong experience with DevSecOps tooling like Terraform and Ansible, and familiarity with cloud technologies and cyber security. Offering competitive salary and a hybrid working model, this opportunity is perfect for those looking to grow in a defense-focused environment.

Infrastructure Engineer + 6 month initial contract + Hybrid working from Corsham + £500 to £600 per day -Inside IR35 + Ideally looking for a current DV Clearanbce Key Skills: + AD, GPO and DNS + VMWare vCenter The Role We're looking for a hands-on Level 2/3 IT Support Engineer to join our team delivering and maintaining critical test and reference environments in support of deployed Live IT systems. This is not your average desktop support gig-think enterprise-level environments across VMware, Windows, Linux, and Cisco, keeping the backbone of Defence IT running smoothly. What you'll be doing: Building, configuring, and maintaining virtual machines, networks, and applications. Installing updates, patches, and operating systems (Windows/Linux), plus security software. Monitoring complex environments and troubleshooting across hardware, networks, and applications. Diagnosing issues, carrying out root-cause analysis, and implementing fixes. Managing backups, inventories, and hardware installs (yes, sometimes lifting heavy kit). Maintaining connectivity, documenting changes, and ensuring smooth operations. Must-haves: Able to work on-site at Corsham & PTP within a close-knit team. Solid experience with Microsoft Active Directory, Group Policy, and DNS. Strong Microsoft Server skills (2012R2, 2019, Windows 10). Hands-on experience with VMware vCenter and virtualised environments. Good hardware knowledge and willingness to lift/fit equipment. Nice-to-haves (not essential, but great if you bring them): Experience with Microsoft Exchange, Skype for Business, SharePoint, SQL Server. Familiarity with Trend DSM, VEEAM, SolarWinds, Zero Clients, Meinburg NTP, VMware Horizon. Knowledge of ADFS, PKI (especially Defence PKI), VMware NSX, cryptographic materials handling. Linux and Cisco networking skills. Flexibility to cover occasional out-of-hours work and 1-in-6 on-call rota.

Interoperability Architect 6 months+ DV cleared role Hybrid working from Farnborough Outside IR35 £600 - £700 a day Role Overview We are seeking an experienced Interoperability / Gateway Architect to support the design and delivery of secure, resilient integration solutions. This role will focus on Exchange and/or Web Gateway architectures, enabling interoperability across complex enterprise and secure environments. Key Responsibilities Design and define interoperability and gateway architectures to support data exchange between systems and domains Lead architectural decisions for Exchange and Web Gateway solutions, ensuring security, scalability, and resilience Work closely with technical teams, security stakeholders, and delivery partners to translate requirements into robust designs Produce high-quality architectural documentation, including HLDs, LLDs, and integration patterns Ensure compliance with relevant security, architectural, and governance standards Key Skills & Experience Proven experience as an Architect delivering interoperability or integration solutions Strong knowledge of Exchange Gateways and/or Web Gateways Experience designing secure system-to-system integrations Solid understanding of network, security, and identity principles Ability to engage confidently with both technical and non-technical stakeholders If you would like to discuss this Interoperability Architect role in more detail, please send your updated CV to and I will get in touch.

A leading IT services company is seeking two Virtualization Engineers for a 9-month contract in Sheffield, offering hybrid working arrangements. The role involves designing and managing virtualization technologies to optimize IT infrastructure. Candidates should have deep expertise in platforms like VMware and Hyper-V, along with strong scripting skills in Python and PowerShell. A VCP certification in VMware is essential. Attractive compensation of £480 to £500 per day is offered.

Job Title: Storage PM Schedule Location: Sheffield/hybrid Rate: £435 per day inside ir35 Duration: 12 Months Role Description: I am looking for a Storage Project Manager you will coordinate schedules, dependencies, and change controls across storage workstreams (SAN/NAS/DPS/Automation) within the OpenShift migration programme, ensuring governance and timely delivery. Key Responsibilities: Maintain integrated plans, RAID logs, and release calendars. Facilitate CAB submissions, stakeholder updates, and vendor coordination. Track KPIs and support audit/compliance evidence collection. Required Skills & Qualifications: Strong communication and stakeholder management; PM tools (MS Project/Jira). Understanding of storage change windows and operational processes. If you are interested in this role, please feel free to submit your CV