628 jobs found

Dunton/Basildon Essex (On-site 4 days per week - non-negotiable) Start: End of April/May 2026 Duration: 8 months  Competitive day rate - up to £590 a day We are currently seeking a Senior Software Engineer to join a high-performing engineering team within a large-scale, enterprise environment. This role is ideal for a highly experienced Back End engineer with a passion for clean code, modern development practices, and delivering high-quality solutions in an Agile setting. Key Responsibilities Design, develop, test, and maintain scalable software applications Contribute across the full software development life cycle, from architecture through to deployment Lead and participate in development reviews, ensuring code quality and best practices Collaborate closely with cross-functional teams in a highly Agile, pair-programming environment Support and mentor junior engineers while managing multiple complex assignments Essential Skills & Experience Strong background in Agile Java Development Expertise in Spring Boot and JUnit Extensive hands-on experience with TDD and BDD (candidates must be accustomed to applying this in the majority of their development work) Proven experience with pair programming (comfortable working this way up to 100% of the time) Strong experience designing scalable, resilient, and secure Back End architectures Deep knowledge of Git/GitHub and CI/CD pipelines (eg, Cloud Build) Experience working with Google Cloud Platform (GCP) , including infrastructure as code and cloud-native services Strong understanding of architectural standards within large organisations Preferred Experience Familiarity with tools such as: IntelliJ IDEA (or other JetBrains products) SonarQube (or similar code quality tools) Checkmarx (or similar security testing tools) FOSSA (or open-source compliance tools) Cycode (or software supply chain security platforms) What We're Looking For Excellent verbal communication skills and strong team collaboration A proactive, quality-driven mindset with a focus on delivering value Ability to work autonomously while contributing to a team-first culture Comfortable working in a structured, large-scale environment Disclaimer Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies. Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.

Role: SC Cleared Network Engineer Location: Farnborough (2 to 3 days per week onsite) Length: 6 months Rate: £750 to £800 via umbrella *CANDIDATES MUST HOLD ACTIVE SC CLEARANCE AND BE SOLE UK NATIONALS DUE TO THE NATURE OF THE WORK AND INDUSTRY* The Role As a Senior Network Engineer, you will be responsible for delivering engineering excellence across one or more technology domains by providing deep technical insight, drive continuous improvement, and ensure solutions are robust, scalable, and aligned with strategic objectives. Day-to-day, you'll lead the design, implementation and support of complex technology solutions, ensuring high performance, reliability, and security. As the Senior Engineer, you will also act as a technical authority, mentoring junior engineers and collaborating across teams to deliver integrated solutions. Your responsibilities will include: Leading the design, implementation and support of enterprise-grade solutions across one or more technology domains Take ownership of complex technical deliverables, ensuring quality, performance, and alignment with architectural and strategic standards and provide technical leadership and mentoring to Engineers and Associate Engineers, supporting their development and integration into the team Collaborate with principal engineers, architects and capability leads to align engineering outputs with strategic goals Represent engineering in cross-functional discussions, influencing decisions and driving alignment across teams Contribute to technology roadmaps and continuous improvement initiatives Ensure compliance with security, performance and operational standards and proactively identify and mitigate risks across engineering deliverables and service operations Essential experience of the Senior Network Engineer: Experience with large-scale, multi-site enterprise networks across LAN, WAN, datacentre, and hybrid-cloud/cloud environments Knowledge of routing and switching protocols including BGP, OSPF, VXLAN, EVPN, WI-FI and Network Authentication Protocols (eg 802.1x), across Cisco Catalyst/Nexus/WLC, Cisco Meraki, Palo Alto, Dell products. Familiarity with Cisco, Palo Alto, and F5 security solutions, including Firewalls, intrusion prevention/detection systems, and network access control solutions Eperience with software defined Networking including virtualization technologies such as VMWare NSX-T Experience in producing detailed network designs and documentation aligned with business and security requirements Has experience with network automation, supported by development teams Essential qualifications for the Senior Network Engineer: CCNP or equivalent industry experience Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience). This role is 37 hours per week based at Farnborough. To cover shift patterns between GMT you may be asked to work at specific times. As part of a commitment to maintaining high service availability and rapid incident response, this role will be required to participate in an on-call rota. This responsibility reflects the trust placed in the role to act swiftly and decisively when critical systems are impacted. At our Farnborough site exciting work takes place at our state-of-the-art facility, with high-energy Laser technologies, our 5m pressurised wind tunnel which has a simulation capability that is unique in the UK and our large research and development projects is a real hub of creativity, research and innovation. Join our talented teams of Engineers, IT & Cyber Specialists, Project Managers, Group Functions Teams and many more to provide future defences in the UK.

Senior Software Tester / QA Engineer - Up to £44,000 PA Southampton - Hybrid Working We are working with a well-established technology organisation to recruit an experienced Senior Software Tester / QA Engineer to play a key role in the delivery of customer-facing systems and core software products. This position sits within a professional services environment and involves testing both standard solutions and complex, customer-specific implementations. You will work closely with developers, project managers and technical stakeholders, taking ownership of testing activities and ensuring systems meet defined quality standards prior to release and go-live. As a Senior Software Tester, you will be responsible for driving software quality through effective manual and automated testing practices. You will contribute to the ongoing improvement of testing processes, support customer UAT, and act as a subject-matter expert for QA activities across projects, identifying and resolving defects early in the delivery lifecycle. Key responsibilities: Leading and executing software testing activities on customer systems prior to installation and go-live Designing, writing and maintaining robust manual and automated test scripts Owning the creation and maintenance of test plans, test cases and supporting documentation Working collaboratively with development and technical teams to identify, log, prioritise and resolve defects Creating and managing test data to support functional, regression and integration testing Supporting and coordinating user acceptance testing, including direct customer engagement Providing go-live support and post-deployment validation where required Contributing to the continuous improvement of testing standards, tools and methodologies Providing guidance and best practice advice to customers during UAT and test planning Supporting internal product testing and mentoring junior team members where appropriate Requirements: Proven experience in a Software Testing / QA role, operating with a high degree of autonomy Strong hands-on experience with manual testing across complex systems Demonstrable experience designing and maintaining comprehensive test documentation Experience working in Windows Client and Server environments Confident use of Microsoft Office applications for test reporting and documentation Highly advantageous experience: ISTQB Foundation or Advanced certification Experience with test automation tools and frameworks (Ranorex, Selenium or similar) Exposure to C#, Java, or other object-oriented programming languages Experience with SQL Server and/or Oracle databases, including querying and data validation Experience using source control tools such as TFS or Git Understanding of network architecture, IT security and Active Directory Experience within document management, OCR or enterprise systems environments The role may involve occasional UK and international travel. Hybrid working is available once probation is passed, with 1-2 days per week on site.

Join a leading independent technology company as a Security Architect - Obsolescence! Job Overview: We are seeking a highly experienced Security Architect to provide technical security leadership across multiple projects and programmes primarily addressing technology obsolescence. This role is critical to ensuring that Legacy platforms, infrastructure, and applications are remediated, modernised, retired, or migrated in a secure, compliant, and risk-managed manner.The role requires an experienced technical security architect who has come from a hands-on background but has an Information Assurance (IA) string to their bow. The role will support security assurance and design across multiple projects, some security for security and other security for business apps. The ideal candidate must have a breadth and depth of knowledge and in particular, have a strong experience in Identity; ZeroTrust; Azure; Network Security; Application Security. The Security Architect will operate at pace, making informed security decisions in complex, time-constrained delivery environments. Role Title: Security Architect - Obsolescence Location: 100% remote Duration: 1 year Start/End Date: 13-Apr-2026 to 12-Apr-2027 Rate: £680/day to £740 via umbrella payroll co-op' The candidate must have SC Clearance. Key Responsibilities: Security Architecture & Technical Leadership Lead the design and assurance of security architectures supporting obsolescence remediation initiatives, including system upgrades, platform replacements, migrations, and decommissioning. Provide hands-on technical security oversight for Legacy on-premise systems transitioning to modern cloud or hybrid architectures. Define secure target-state architectures aligned to enterprise standards, cloud best practices, and obsolescence roadmaps. Act as the senior security authority across multiple concurrent projects and programmes. Generating security design blueprints and patterns which are re-usable to accelerate design assurance and delivery. Information Assurance & Risk Management Conduct security risk assessments, threat modelling, and impact analysis for obsolete or end-of-life technologies. Assess residual risk and define pragmatic remediation or risk acceptance strategies aligned with organisational risk appetite. Ensure Information Assurance principles are Embedded throughout solution design, implementation, and transition phases. Provide formal security sign-off and assurance artefacts as required by governance forums. Cloud & Hybrid Security (Azure-Focused) Define and validate security requirements for public cloud platforms, with a strong emphasis on Microsoft Azure. Ensure security by design for identity, networking, data protection, and workload security in hybrid and cloud-native environments. Support migration from traditional data centre architectures to Azure, ensuring continuity of security controls and compliance. Guide teams on secure use of Azure-native security capabilities and shared responsibility models. Security Controls & Tooling Define and oversee implementation of security controls covering: Identity and Access Management (IAM) Network security and segmentation Encryption and key management Logging, monitoring, and alerting (SIEM) Vulnerability and configuration management Lead security tooling modernisation, prioritising the effective use of Microsoft native security capabilities where appropriate. Ensure Legacy security controls are appropriately replaced or retired as part of obsolescence activities. Governance, Compliance & Collaboration Ensure alignment with regulatory and standards-based requirements (eg, ISO 27001, NIST, GDPR) and internal security policies. Collaborate with infrastructure, cloud, application, and programme delivery teams to embed security-by-design. Support audit, compliance, and regulatory reviews relating to obsolete or transitioning systems. Produce high-quality security documentation, architecture artefacts, and decision records. Required Skills and Qualifications Experience of the UK Defence sector and operating in classifications up to and including OFFICIAL sensitive. Demonstrate an understanding of UK GOV Secure by Design Proven experience operating at pace, making timely, risk-informed security decisions in complex delivery environments. Extensive experience as a Security Architect supporting large-scale transformation, obsolescence, or modernisation programmes. Strong technical background in traditional on-premise enterprise architectures, including networks, Servers, identity, and Legacy platforms. Demonstrable experience transitioning from on-premise environments to public cloud, with strong expertise in Microsoft Azure. Deep hands-on knowledge of: Cloud security architecture and frameworks Identity and access management Network and workload security Encryption and data protection Strong Information Assurance experience within regulated or risk-sensitive environments. Experience working across multiple projects and programmes simultaneously. Excellent stakeholder engagement, documentation, and communication skills. Preferred Qualifications Security or architecture certifications such as CISSP, CCSP, SABSA, TOGAF, or Azure Security certifications. Experience leveraging Microsoft security tooling such as Microsoft Defender, Sentinel, Entra ID, and Azure Policy. Background in environments with significant Legacy technical debt and time-bound remediation pressures. Key Attributes Highly technical and pragmatic Strong risk-based decision-maker Comfortable operating under delivery pressure Able to balance security rigor with business outcomes Confident engaging at both engineering and senior governance levels How to Apply: If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. Hays Talent Solutions is a trading division of Hays Specialist Recruitment Limited and acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found on our website.

We're looking for a Technical Solutions Architect to lead the next evolution of a RGM.AI web application at a prominent CPG/FMCG brand. This tool simulates and optimizes pricing and promotion plans across B2B and B2C customers. The platform integrates large-scale data, AI/ML models, and a React web app to help commercial teams: Simulate base price changes Optimise promotional mechanics (1+1, 2+1, % off, multipacks) Evaluate promo vs. non-promo performance Model elasticity, uplift, and margin impact You will own the architecture end-to-end and drive the platform's technical and functional maturity. Your Responsibilities Architecture & Technical Leadership Own the end-to-end architecture (data - analytics - web app) Design scalable solutions using GCP, Databricks, React, Big Data Ensure the platform scales for new regions, users, and data volumes RGM Product Evolution Lead the product's technical evolution from early-stage to enterprise-grade Maintain accurate, stable pricing & promo simulation logic Validate new pricing/promo features and mechanics Own release management across all components Define GitHub branching and engineering best practices Implement monitoring across pipelines, models, and the UI Work closely with senior stakeholders, POs, data science, and integrators Own and maintain consolidated technical documentation Technical Skills Strong experience in GCP, Databricks, Big Data, transactional data Solid understanding of React and modern web apps Strong GitHub/code branching & release management experience Ability to connect all product layers end-to-end Industry & RGM Expertise Mandatory CPG + multinational experience Strong RGM knowledge: pricing, elasticity, promo uplift, promo mechanics Experience with commercial/RGM/sales tools (TPM/TPO/RGM platforms) Product management or technical product ownership experience Solution architecting across data, analytics, and application layers Experience taking products from build - stabilisation - scale Contract details: Start date: ASAP Location: Hybrid, Hilversum Duration: 12months + (plus potential extensions) Salary/Hourly rate: Please let us know your expectations. Interested? Please apply via the link below with your updated CV, or reach out directly with your updated CV. Let op: vacaturefraude Helaas komt vacaturefraude steeds vaker voor. We waarschuwen je voor mogelijke misleiding: * Wij zullen nooit via WhatsApp of in een videogesprek vragen om jouw persoonlijke gegevens (zoals een kopie van je ID, bankgegevens of BSN). * Twijfel je over de echtheid van een vacature of contactpersoon? Neem dan altijd rechtstreeks contact met ons op via de officiële contactgegevens op onze website. Important: job fraud Unfortunately, job fraud is becoming more common. Beware of such scams: * We will never ask for personal information (such as a copy of your ID, bank details, or social security number) via WhatsApp or during a video call. * If you're unsure whether a vacancy or contact person is legitimate, please reach out to us directly using the official contact details on our website.

Lead PHP Developer - PHP Laravel/Symfony/CodeIgniter; HTML, CSS, SQL/MySQL, AWS inc AI Search; Javascript Vue, React; Full Stack/Full Lice Cycle, Professional Services/Finance Systems. Permanent, London (Hybrid 2/3), £130k - £150k (On Experience) +Benefits Lead PHP Developer / Senior Web Developer / Team Lead required by global professional services company. Working on both internal systems integrating with 3rd party systems as well as customer facing web-based systems built in PHP and associated frameworks, you will lead development initiatives within the full life cycle. Working with an internationally dispersed team the Lead PHP Developer / Senior Web Developer will: Work with both Project Managers and Data Scientists to define, manage and deliver projects Play a lead role in the architecture and design of web-based systems Develop code within the full life cycle: Development>Testing>Deployment>Refactor Develop integrations with internal and external system via APIs Undertake code reviews across PHP, Laravel, Symfony, CodeIgniter, Go/Golang (to a lesser degree), SQL/MySQL, HTML, CSS and Javascript (inc React and Vue) Architect, build, and deploy scalable, cloud-native, AI-powered data-driven products in AWS Drive the integration of AI, automation, agents, and modern tooling (including model context protocol capabilities) to enhance developer productivity and delivery pipelines Lead and develop team members across software, data, platform, and AI We are open to applications from across industry and varying levels of experience in terms of leadership and project delivery; any experience working within Agile/Scrum would be beneficial. You will however: Possess Senior level, hands-on PHP development experience with both raw OOPHP and at least one main contemporary framework such as Laravel/Symfony, CodeIgniter etc Work within the full stack of web development inc PHP, Javascript, HTML, CSS Be confident in use of various Javascript Frameworks inc Vue, React (or others) Possess strong database design skills for web-based systems utilising SQL/MySQL Be comfortable deploying enterprise applications within the AWS environment Apply microservices architecture, database design, and rigorous security standards Possess experience working with internal AI platforms as well as (ideally) AWS AI Search Demonstrate experience working within the full life cycle from design to delivery Be capable of leading diverse teams across development, DevOps, AI, Data Science This is an excellent opportunity to join a business at an exciting time of international development and play a key role in the future of its core business systems. Excellent benefits and flexible Hybrid (2 days in office) working conditions offered.

Principal Systems Engineer Location: Dorchester, Dorset, England Competetive Market Salary Package Includes: Career Development and Training Employee pension contribution is matched 1.5 times by TKMS Atlas to a maximum of 10.5% ER contribution 25 days holiday (increasing to 28 days after 5 years and 30 days after 10 years) Dental Cover and Employee Assistance Programme Flexible working patterns Relocation Package Purpose of role To provide senior technical leadership for systems engineering process, guidance and tool usage. To support the systems engineering team and wider business using Model Based Systems Engineering (MBSE) practices. Key Responsibilities Model Based Systems Engineering SQEP, providing guidance to systems engineering team and wider business MBSE users. Extensive experience using Enterprise Architect or similar software. Leading MBSE outsource activities using industry specialists. Support to delivering key system engineering processes across the product lifecycle. Working closely with the project teams including the System Design Authority, Engineering Manager and Systems Engineers. Using expertise and knowledge to make a strong contribution to bids and projects Representing TKMS Atlas UK internally and externally on systems engineering aspects Promoting the use of efficient and consistent systems engineering practices. Developing and implementing relevant tools and processes Supporting delivery of the engineering divisional strategy Key Skillset Systems Engineering Model Based Systems Engineering Practises In depth understanding of TKMS Atlas UKs engineering delivery project/bid requirements and challenges Experience in developing solutions to complex problems Experience in change and project / engineering management Additional information Due to the sensitive nature of the product all applicants must have worked within the Defence / Military industry within the last 12 months or be capable of obtaining Security Clearance (SC level minimum). SC clearance must be in place before the successful candidate can start.

We have an exciting job opportunity for role ServiceNow Architect based in London, UK. Job description: ServiceNow Architect (TNI/TSOM) Location: London, UK (3 days in office) Job Type: contract Job Description: 15+ years of overall IT experience, with strong background in enterprise system design and large-scale architecture. 10+ years specialized in ServiceNow + TSOM architecture, including hands-on experience with telecom inventory models. (TNI includes inventory, rack design, capacity, equipment modelling, fiber/circuit mapping, etc.) Strong expertise across ServiceNow telecom ecosystem: TNI, CMDB, Discovery, Service Operations, ITOM, CSM, FSM/FSL. Proven experience designing integrations between ServiceNow and OSS/BSS systems. Experience defining data models for network equipment, logical circuits, racks, capacity, and telecom topology. Strong communication and stakeholder management skills, including experience presenting to senior executives. ServiceNow certifications preferred: Certified System Administrator CIS (any Telecom/CMDB/Discovery/CSM/ITSM modules) CAD CTA (preferred)

Role Title: Senior Unix Engineer Duration: contract to run until 30/11/2026 Location: Knutsford, hybrid 3 days per week onsite Rate: up to £506 p/d Umbrella inside IR35 Role purpose/summary The SI Unix Engineer is a senior Unix/Linux infrastructure specialist with a strong focus on platform security, compliance, and stability within highly regulated enterprise environments. The role supports critical Unix/Linux platforms, including Legacy and modern systems, and plays a key part in data centre optimisation, migration, and security hardening initiatives. This position requires deep hands-on Unix/Linux expertise combined with strong security awareness, operational discipline, and the ability to communicate effectively with global stakeholders. Key Responsibilities Provide L2/L3 support for Unix/Linux infrastructure platforms in production, including business critical and regulated systems Perform secure build, configuration, hardening, and ongoing maintenance of Unix/Linux Servers Support data centre optimisation, migration, and transformation programmes, including platform stabilisation and risk reduction activities Implement and maintain security controls, including access management, patching, vulnerability remediation, and configuration compliance Participate in incident, problem, and change management, ensuring adherence to ITIL and security governance standards Support audit, risk, and compliance activities, including evidence gathering and remediation of audit findings Work closely with security, platform, and architecture teams to ensure platforms meet enterprise security and operational standards Create and maintain technical documentation, runbooks, and operational procedures Contribute to continuous improvement initiatives to enhance platform reliability, security, and operational efficiency Technical Skills & Experience (Essential) Strong hands-on experience administering Unix/Linux platforms in large enterprise environments Linux (RHEL, Oracle Linux, SUSE or equivalent) Unix variants (eg AIX, Solaris, HP UX or equivalent Legacy platforms) Solid experience with system hardening and security best practices on Unix/Linux Strong understanding of: OS patching and life cycle management User and privilege management (sudo, PAM, RBAC) File system, storage, and performance management Process monitoring, troubleshooting, and root cause analysis Experience working in regulated or security sensitive environments (eg banking, financial services, critical infrastructure) Familiarity with vulnerability management, security scanning, and remediation processes Experience supporting data centre migration or transformation programmes is highly desirable Working knowledge of ITIL processes (incident, problem, change) Certifications (Preferred, not mandatory) Red Hat Certified Engineer (RHCE) or equivalent Linux certification Unix/Linux vendor certifications (AIX, Solaris, etc.) ITIL Foundation Security focused certifications (eg CompTIA Security+, CISSP - foundational exposure acceptable) Soft Skills & Behavioural Attributes Strong verbal and written communication skills in English Ability to explain technical issues clearly to both technical and non-technical stakeholders Proven ability to work effectively in global, distributed teams Strong analytical and problem solving mindset High attention to detail, particularly in security and compliance driven environments All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!

Workday Integration Consultant (API & Integration Architecture) 6 month initial contract Remote *market rate - Umbrella/Inside IR35* Purpose Acts as the consultative integration specialist for Workday, advising HR and IT on how to interact with Workday using standard APIs and best-practice patterns, without building bespoke solutions. Key Responsibilities Advise on Workday integration approaches for HR-driven events (eg job title changes, employee life cycle updates) Define how Workday should be called (APIs, events, payloads, sequencing) rather than building custom integrations Guide HR and IT teams on Workday integration best practices, patterns, and constraints Ensure integrations align to existing enterprise architecture and avoid unnecessary customisation Work closely with ServiceNow and Azure Logic Apps teams to ensure clean hand-offs into the integration layer Key Skills & Experience Strong understanding of Workday data models, APIs, and integration patterns Proven experience advising on Workday integrations in complex enterprise environments Architecture-level mindset consultative rather than hands-on build focused Experience working alongside HR teams with active roadmaps and frequent change Ability to challenge approaches constructively and early (before build commitments) Profile Required Senior, self-sufficient consultant, no hand-holding Comfortable operating across HR, IT, and integration teams Able to embed into HR-led programmes and influence direction early Experience working with globally distributed stakeholders (including India-based HR teams)

Job Title: Unix Engineer Location : Manchester - 2/3 days per week onsite Salary/Rate: £500 per day inside IR35 Start Date: 27/04/2026 Job Type: Contract - 6 months Company Introduction We are looking for a senior Unix/Linux infrastructure specialist with a strong focus on platform security, compliance, and stability within highly regulated enterprise environments. The role supports critical Unix/Linux platforms, including Legacy and modern systems, and plays a key part in data centre optimisation, migration, and security hardening initiatives. This position requires deep hands on Unix/Linux expertise combined with strong security awareness, operational discipline, and the ability to communicate effectively with global stakeholders. Job Responsibilities/Objectives Provide L2/L3 support for Unix/Linux infrastructure platforms in production, including business critical and regulated systems Perform secure build, configuration, hardening, and ongoing maintenance of Unix/Linux Servers Support data centre optimisation, migration, and transformation programmes, including platform stabilisation and risk reduction activities Implement and maintain security controls, including access management, patching, vulnerability remediation, and configuration compliance Participate in incident, problem, and change management, ensuring adherence to ITIL and security governance standards Support audit, risk, and compliance activities, including evidence gathering and remediation of audit findings Work closely with security, platform, and architecture teams to ensure platforms meet enterprise security and operational standards Create and maintain technical documentation, runbooks, and operational procedures Contribute to continuous improvement initiatives to enhance platform reliability, security, and operational efficiency Required Skills/Experience The ideal candidate will have the following: Strong hands on experience administering Unix/Linux platforms in large enterprise environments Linux (RHEL, Oracle Linux, SUSE or equivalent) Unix variants (eg AIX, Solaris, HP UX or equivalent Legacy platforms) Solid experience with system hardening and security best practices on Unix/Linux OS patching and life cycle management User and privilege management (sudo, PAM, RBAC) File system, storage, and performance management Process monitoring, troubleshooting, and root cause analysis Experience working in regulated or security sensitive environments (eg banking, financial services, critical infrastructure) Familiarity with vulnerability management, security scanning, and remediation processes Experience supporting data centre migration or transformation programmes is highly desirable Working knowledge of ITIL processes (incident, problem, change) Desirable Skills/Experience Although not essential, the following skills are desired by the client: Red Hat Certified Engineer (RHCE) or equivalent Linux certification Unix/Linux vendor certifications (AIX, Solaris, etc.) ITIL Foundation Security focused certifications (eg CompTIA Security+, CISSP - foundational exposure acceptable) If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format. Disclaimer Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies. Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.

We are hiring a Senior Azure Integration Developer to join a Business Applications team within a leading financial services environment. This is a hands-on engineering role focused on designing, building and maintaining integrations across the Microsoft Azure ecosystem to support critical business applications and evolving technology needs. You will work closely with architecture, development and business teams to deliver secure, scalable and high-performance integration solutions using modern Azure integration technologies. Key Responsibilities Design and deliver secure, scalable Azure integrations (APIM, Logic Apps, Functions, Service Bus, Event Grid, AKS) Produce clear technical designs (API specs, diagrams, documentation) Apply API security, versioning, throttling, and governance best practices Maintain and optimise integrations for reliability and performance Troubleshoot distributed systems using Azure monitoring tools Manage documentation, runbooks, and support processes Build and deploy solutions via Azure DevOps and Git Implement Infrastructure-as-Code (Bicep/Terraform) Promote automation, testing, and secure coding practices Work with stakeholders to deliver effective integration solutions Implement monitoring, alerting, and observability Experience Required Proven experience with Azure Integration Services (APIM, Logic Apps, Azure Functions, Service Bus, Event Grid) Experience delivering containerised workloads in AKS Strong programming capability in C#, .NET, JavaScript or TypeScript Solid understanding of REST APIs, OAuth2 and modern API security practices Experience with SQL and data integration technologies Familiarity with CI/CD pipelines and DevOps practices, ideally using Azure DevOps Knowledge of Infrastructure-as-Code tools such as Terraform or Bicep is advantageouS This is a London-based hybrid role offering the opportunity to shape integration capability within a technically mature, enterprise-scale environment.

Senior Network Engineer - City of London - Large financial services company - Salary up to £80,000 plus bonus and benefits - Hybrid working (3 times a week in London office) A large financial services company are currently looking for an experienced Senior Network Engineer to join their growing team. The role will have responsibility for managing and designing the enterprise network which stretches globally. Duties will include: - Assisting architects with implementations - Driving enhancements to networks - Modernising infrastructure - Level 3 network technical support - Routing/Switching/Firewall implementations - Integration of switches, routers, wireless controllers, SDN, F5 load balancers, NAC servers and cloud infrastructure - On call rotation support - Network security To be considered suitable for this Senior Network Engineer role you will need the following skills and experience: - Experience in design and implementation of networks in a large user environment - Strong Cisco background (ideally CCNP/CCIE) - Knowledge of Layer 2 LAN technologies (VLANs, VTP, STP) - Routing protocols - F5 Load Balancers - Network security - Azure/Cloud technology - SDWAN technologies - CIsco Wireless technology Experience with automation/scripting would be an advantage but this is not essential

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. Job Title : Lead UI Developer / React Contract : Initial 12-Month Contract with potential to extend . Location : London (In office) Rate : £850 - £900 inside umbrella What You'll Do: As the Lead UI Developer, you will spearhead the development of our flagship Triforce Credit Project. You will be responsible for designing and implementing cutting-edge user interfaces that cater to front office e-trading applications. Your expertise will ensure that our software is not only highly functional but also delivers an exceptional user experience. Key Responsibilities: Lead the development of front office e-trading applications with a focus on low latency and performance. Collaborate with cross-functional teams to ensure seamless integration of UI components. Mentor and guide junior developers, fostering a culture of innovation and excellence. Stay up-to-date with industry trends and best practices to continually improve our UI strategies. What You Bring Deep Expertise: A proven track record of delivering complex, enterprise-grade front-office e-trading systems in high-pressure, real-time environments. Technical Authority: Languages: Exceptional command of JavaScript and TypeScript, with the ability to architect, optimise, and scale mission-critical applications. Front-End Frameworks: Mastery of React and Redux, with extensive experience shaping robust UI architectures used in demanding trading workflows. Back-End: Strong working knowledge of Java, capable of contributing effectively to full-stack solutions when required. Industry Insight: A comprehensive understanding of the full trading lifecycle within investment banking, particularly across Fixed Income or FX, with the ability to navigate front-office workflows and trading system behaviours at a granular level. Why Join Us? Innovative Environment: Be a part of a team that thrives on creativity and innovation, where your ideas will be valued. Career Growth: Opportunities for professional development and career advancement are abundant. Impactful Work: Contribute to projects that directly influence the efficiency and effectiveness of trading operations in the financial sector. Collaborative Culture: Work alongside talented professionals who are passionate about technology and finance. Adecco is a disability-confident employer. It is important to us that we run an inclusive and accessible recruitment process to support candidates of all backgrounds and all abilities to apply. Adecco is committed to building a supportive environment for you to explore the next steps in your career. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you. 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.

Release Train Engineer (RTE) - Contract Rate: £600 - £650 Inside IR35 Duration: 6 months initial Location: Wiltshire (1 day per week on-site) The Role: We're looking for an experienced Release Train Engineer (RTE) to support the delivery of complex, large-scale initiatives across multiple Agile teams. This role sits at the heart of the organisation's Agile delivery ensuring alignment, flow and continuous improvement across the Agile Release Train (ART). You'll work closely with Product Management, Architects, Engineering leads and Delivery teams to drive execution, remove impediments and embed strong SAFe practices across the programme. Key Responsibilities: Facilitate and coach the Agile Release Train (ART) using SAFe principles and practices Plan and run PI Planning, Inspect & Adapt events, Scrum of Scrums and ART Syncs Manage and escalate risks, dependencies and impediments across multiple teams Support Product Management with roadmap execution and delivery predictability Drive continuous improvement in flow, quality and delivery metrics Coach Scrum Masters, Product Owners and delivery teams to improve Agile maturity Ensure alignment between business objectives, technical delivery and governance Skills & Experience Required: Proven experience as a Release Train Engineer in a SAFe environment Strong understanding of SAFe, Agile and Lean delivery at scale Background working across multiple delivery teams and complex programmes Confident facilitator with strong stakeholder management skills Experience working with senior technical and business stakeholders Comfortable in a hybrid working model with on-site collaboration Nice to Have: SAFe RTE certification Experience in regulated or enterprise environments (e.g. financial services, utilities, public sector) Exposure to large-scale digital or platform transformation programmes Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients. If you need any help or adjustments during the recruitment process for any reason , please let us know when you apply or talk to the recruiters directly so we can support you.

Our Mission At Vertical Aerospace, we are pioneering the way for electric aviation. The Valo, our eVTOL (electric, vertical, take-off and landing), 'zero emissions' aircraft will set a new safety standard for how we will navigate the sky. We won't realise our mission following the same legacy processes and traditions our predecessors followed, instead, we want to 'redefine' aerospace best practices. We are growing quickly from a prototype business to a scaling SME, and the next few years will be critical to our success and delivering on our ambitious goals. Valo is targeting airliner-level safety certification in 2028 ahead of entering service with our airline and operator customers. What to Expect As a Senior Aircraft Systems Engineer, you'll sit at the heart of our engineering function, shaping how the Valo comes together as a coherent, certifiable aircraft. You'll lead cross-functional efforts that define and integrate systems, working closely with safety, avionics, propulsion, and structures teams. This is a hands-on role for a systems thinker who thrives in complexity and is passionate about bringing innovative aircraft to life. What You'll Do Own and drive aircraft-level requirements, architecture, and verification activities Lead the integration of technical solutions across safety, structures, propulsion, avionics Coordinate trade studies across systems and interface management Generate and review compliance evidence for certification, ensuring traceability and completeness Apply and promote Model-Based Systems Engineering (MBSE) practices Support programme planning and identify blockers to keep engineering deliverables on track Mentor other engineers and promote systems engineering best practices across the organisation Participate actively in design reviews, programme reviews, and compliance reviews What You'll Bring Proven experience leading systems engineering at system or aircraft level Familiarity with ARP4754A/B Skilled in requirements management, architecture definition, and verification planning Excellent communication, planning, and problem-solving skills Experience with tools like DOORS, Jama, or Polarion Knowledge of MBSE tools such as System Composer or Enterprise Architect A proactive, solutions-focused mindset and a collaborative approach to delivery Bonus if you have Familiarity with SC-VTOL Background in Aeronautical Battery systems, EWIS, or Electrical Propulsion. Background in Aeronautical Structures design or Aircraft Performance / Flight Physics What can you expect from us? We're on a mission. Where others see limits, we see opportunity, and we work at pace. Working at Vertical isn't your average role but for those seeking a challenge, a flexible, supportive organisation and an incredible team; working here is an opportunity to do the best work of your career. Our approach promotes ingenuity and courage, while our environment builds success through diligence in safety and being open in the way we work. The only way we're going to assure the next chapter of aviation history is by working as a team, relentlessly, towards our goal. Our benefits Our people matter - we're not going anywhere without them. Which is why our company benefits go beyond the essentials. 26 days holiday, plus bank holiday 5 extra days per year to buy (or sell) 5 extra days holiday when you get married or enter a civil partnership Additional 4% of your salary to spend on extra benefits Award-winning digital health and wellbeing service Company performance based bonus - rewarding company and individual performance Company Share Scheme - open to every Vertical employee Company Pension Scheme - 5% and we match it Breakfast on us, every day We may just be the hardest job you've ever had, but we're confident it will be the most rewarding. Join the team today and help us shape the future of Advanced Air Mobility. Disclaimer Statement We encourage you to apply even if you may not have all the experience listed in the advert. We recognise that talent comes in various forms and we are committed to providing opportunities that create an environment of growth, diversity, and inclusion for everyone. As part of our desire to review and make our processes fair, we may ask you questions related to these aspects during the application process. For more information on how we will use your data, see our Legal section.

Senior Infrastructure Engineer/Infrastructure Consultant Manchester / Hybrid (1 day on-site every 2 weeks)£37K - £65K A Senior Infrastructure Engineer / Infrastructure Consultant is required for our client based in Manchester. This role is perfect for someone who thrives in a dynamic project-delivery environment, enjoys variety, and can turn their hand to a broad range of technologies across Azure, M365, SaaS, and on-prem infrastructure. You'll be involved in multiple concurrent projects, delivering modern cloud solutions while also supporting and transforming a sizeable legacy estate. The organisation is operating in a genuinely hybrid environment for the next 5 years, so you'll work across Azure, SaaS platforms, and traditional on-prem technologies, making this an ideal role for someone who enjoys end-to-end ownership and technical breadth. The ideal candidate will be a strong all-rounder, comfortable picking up new technologies and running with a challenge, will thrive here. If you're an experienced Infrastructure Engineer, Consultant, or 3rd Line Engineer looking to work on high-impact projects and broaden your cloud skills, this is a fantastic opportunity. Responsibilities: Delivering end-to-end infrastructure projects across Azure, M365, SaaS, and on-prem/hybrid environments. Leading and contributing to multiple technical projects simultaneously. Implementing improvements, migrations, upgrades, and modernisation initiatives. Working closely with architects, project managers, and engineering teams to ensure successful delivery. Producing documentation such as implementation plans, technical designs, handover materials, and support guides. Acting as a go-to technical resource across infrastructure, networking, virtualisation, identity, and cloud services. Enhancing automation and improving operational efficiency (PowerShell, scripting, IaC desirable but not essential). Driving continuous improvement in reliability, security, performance, and best practice. Experience Required: Strong background delivering infrastructure solutions within hybrid environments. Good exposure across core infrastructure technologies such as Windows Server, VMware, AD, DNS, DHCP, networking, enterprise hardware, and firewalls. Experience delivering or supporting Azure or M365 solutions. Comfortable juggling multiple projects, adapting quickly, and working autonomously. Excellent troubleshooting skills and the ability to pick up new tools and technologies quickly. Strong communication and documentation abilities, with confidence working with a wide range of stakeholders. Desirable: Experience with infrastructure-as-code, automation, or scripting (PowerShell, Bicep, Python). Exposure to SaaS platforms and modern cloud-first services. Microsoft certifications (Azure Administrator, Azure Solutions Architect, M365), or other relevant industry credentials (VMware, Cisco, Palo Alto, HPE).