101 to 125 of 196 Legacy Systems Jobs in the UK excluding London

HM Land Registry (HMLR) are launching a large data transformation programme that will modernise legacy systems, unlock geospatial services and build cutting-edge analytical platforms. As a Senior Data Architect, you will help shape HMLR's data future by leading on design, modelling and governance while mentoring others in a supportive, cross-government digital and data community. … a major transformation programme. HMLR's ambition is to become the world's leading land registry for speed, simplicity and an open approach to data. HMLR's existing software systems and services form part of the critical national infrastructure, safeguarding land and property ownership valued at £7 trillion. This enables over £1 trillion worth of personal and commercial lending More ❯

implementation . They're looking for an experienced D365 Transition Manager to lead the testing and cut-over phases, ensuring a smooth and successful migration from legacy systems to D365. The role is a 12 month Fixed Term Contract paying up to £60,000 per annum with potential for contract extensions. The role is full-time Monday More ❯

Demonstrable London Market software selection/delivery/integration experience Knowledge of the Insurance Policy/Claims Admin System landscape Experience of previous projects moving from legacy systems to updated versions (software/hardware/integration) and able to articulate the role(s) played Sound like you? Please get your details over to ARC IT ASAP More ❯

Seeking a Senior QA Engineer with strong, hands on automation experience to join a growing digital transformation team, modernising legacy systems into cloud-native solutions using Java, DevOps, and agile practices. This is a permanent role with hybrid working in Telford, paying £46,000 to £67,000 dependant on experience, plus bonus. Key Details: Location: Hybrid - average More ❯

Seeking a Senior QA Engineer with strong, hands on automation experience to join a growing digital transformation team, modernising legacy systems into cloud-native solutions using Java, DevOps, and agile practices. This is a permanent role with hybrid working in Telford, paying £46,000 to £67,000 dependant on experience, plus bonus. Key Details: Location: Hybrid - average More ❯

team to improve how they build and release their applications Support development teams in onboarding to a standard CI/CD pipeline Troubleshoot technical challenges including legacy systems, tooling migrations, and testing gaps Encourage sustainable practices like test automation, trunk-based development, and containerization Proven skills and experience to help succeed in this role include: Proven experience More ❯

team to improve how they build and release their applications Support development teams in onboarding to a standard CI/CD pipeline Troubleshoot technical challenges including legacy systems, tooling migrations, and testing gaps Encourage sustainable practices like test automation, trunk-based development, and containerization Proven skills and experience to help succeed in this role include: Proven experience More ❯

join their London-based office as part of a large finance ERP implementation programme. This role is central to the integration workstream, supporting the transition from legacy systems to a legal-specific ERP.Job Details:Start date: ASAPDuration: until March 2027 initiallyRate: £600-£670pd Inside IR35 via UmbrellaLocation: LondonHybrid: 3 days in the officeKey Requirements: Proven experience as More ❯

leadership to digital delivery teams building and supporting core citizen and agent-facing services. This is your chance to play a pivotal role in transforming monolithic legacy systems into scalable, modern microservice architectures , backed by a forward-looking tech strategy. What You'll Be Doing Lead agile teams developing digital products or shared platform capabilities. Shape and More ❯

leadership to digital delivery teams building and supporting core citizen and agent-facing services. This is your chance to play a pivotal role in transforming monolithic legacy systems into scalable, modern microservice architectures , backed by a forward-looking tech strategy. ?? What Youll Be Doing Lead agile teams developing digital products or shared platform capabilities. Shape and influence More ❯

multiple development efforts to ensure alignment with requirements, expectations, and compliance regulations. Collaborate with programmers, database administrators, and technical specialists. Work closely with analysts to understand legacy systems, business processes, and data. Build expertise in ERP implementation/Support best practices. Lead and execute functional testing, including test scenario development, documentation, and validation testing for interfaces and More ❯

multiple development efforts to ensure alignment with requirements, expectations, and compliance regulations. Collaborate with programmers, database administrators, and technical specialists. Work closely with analysts to understand legacy systems, business processes, and data. Build expertise in ERP implementation/Support best practices. Lead and execute functional testing, including test scenario development, documentation, and validation testing for interfaces and More ❯

multiple development efforts to ensure alignment with requirements, expectations, and compliance regulations. Collaborate with programmers, database administrators, and technical specialists. Work closely with analysts to understand legacy systems, business processes, and data. Build expertise in ERP implementation/Support best practices. Lead and execute functional testing, including test scenario development, documentation, and validation testing for interfaces and More ❯

environment Provide technical direction and architectural oversight for complex projects Stay hands-on with coding, problem-solving, and technical delivery Shape the technology roadmap, working across legacy systems and cutting-edge AI projects Drive technical standards and ensure delivery against ambitious targets Work closely with leadership to translate business needs into technical solutions Technical Stack & Experience: Strong … PHP experience (Laravel framework) Database expertise: MySQL, Elasticsearch Front-end knowledge: Vue.js or similar modern frameworks Understanding of DevOps practices (GitHub, Terraform advantageous) AI systems experience is a plus Previous experience in scaling tech companies or start-ups highly valuable What's On Offer: Competitive base salary equity Remote-first culture 1 day a week in the London office … Opportunity to join at a pivotal scaling moment with rapid career progression potential Work on diverse projects from legacy optimisation to cutting-edge AI deployment This is your chance to step into a leadership role where you can directly influence both technology direction and team culture at one of the UK's most exciting PropTech growth stories. The More ❯

transformation. After 15+ years of success, they're rebuilding core platforms from the ground up - modernising everything and scaling globally. Projects You'll Work On: Rebuilding legacy systems using Laravel & Vue.js Driving adoption of the full TALL stack (Tailwind, Alpine.js, Laravel, Livewire) Building new customer-facing tools, portals, and automation features Improving performance and scalability across high … traffic systems Supporting a long-term product roadmap across multiple business units The Stack: PHP (Laravel) Tailwind, Alpine.js, Livewire Vue 2 & 3 Agile/CI/TDD mindset The Setup: Hybrid - 3 days in-office for collaboration and 2 days from home (more flex offered) 3-stage interview process and super quick turnaround Competitive salary + bonus 25 days More ❯

transformation. After 15+ years of success, they're rebuilding core platforms from the ground up - modernising everything and scaling globally. Projects You'll Work On: Rebuilding legacy systems using Laravel & Vue.js Driving adoption of the full TALL stack (Tailwind, Alpine.js, Laravel, Livewire) Building new customer-facing tools, portals, and automation features Improving performance and scalability across high … traffic systems Supporting a long-term product roadmap across multiple business units The Stack: PHP (Laravel) Tailwind, Alpine.js, Livewire Vue 2 & 3 Agile/CI/TDD mindset The Setup: Hybrid - 3 days in-office for collaboration and 2 days from home (more flex offered) 3-stage interview process and super quick turnaround Competitive salary + bonus 25 days More ❯

Communication capability. The initiative will leverage COTS products to deliver a modern, fit-for-purpose solution, requiring tailored customisation to meet specific operational requirements and integrate seamlessly with existing systems and tools. The Senior Project Professional will be accountable for day-to-day programme delivery, leading a multi-disciplinary team and ensuring successful outcomes against time, cost, and quality … and ensure timely delivery. Optional/Desired Experience & Skills Software Development Lifecycle (SDLC): Strong understanding of software engineering processes, including requirements gathering, design, development, testing, and deployment. Network Management Systems: Hands-on experience with NMS platforms, ideally in telecoms or satellite communications environments. Satellite Communications: Familiarity with satellite network architecture, protocols, and operational constraints. Systems Integration: Experience managing … integration of software with hardware and existing infrastructure, including interfacing with legacy systems. Systems Engineering: Understanding of systems engineering principles, including requirements decomposition, interface definition, verification and validation, and lifecycle traceability. Agile Software Development - Experience controlling development of use case, data flows , Epics and user stories Scrum Master Certification (e.g., CSM, PSM) with proven experience in More ❯

Communication capability. The initiative will leverage COTS products to deliver a modern, fit-for-purpose solution, requiring tailored customisation to meet specific operational requirements and integrate seamlessly with existing systems and tools. The Senior Project Professional will be accountable for day-to-day programme delivery, leading a multi-disciplinary team and ensuring successful outcomes against time, cost, and quality … and ensure timely delivery. Optional/Desired Experience & Skills Software Development Lifecycle (SDLC): Strong understanding of software engineering processes, including requirements gathering, design, development, testing, and deployment. Network Management Systems: Hands-on experience with NMS platforms, ideally in telecoms or satellite communications environments. Satellite Communications: Familiarity with satellite network architecture, protocols, and operational constraints. Systems Integration: Experience managing … integration of software with hardware and existing infrastructure, including interfacing with legacy systems. Systems Engineering: Understanding of systems engineering principles, including requirements decomposition, interface definition, verification and validation, and lifecycle traceability. Agile Software Development - Experience controlling development of use case, data flows , Epics and user stories Scrum Master Certification (e.g., CSM, PSM) with proven experience in More ❯

Tech Lead – SC Cleared - PythonWe’re looking for an SC Cleared Software Developer to play a key role in modernising a legacy government web application.While the current system runs on Django/Python/PostgreSQL, the team is gradually transitioning to a more modern, streamlined stack, making this an exciting opportunity to balance today’s stability with tomorrow … including JavaScript-based Experience Required: Proficiency in Python/Django development. Knowledge of relational databases (PostgreSQL). Familiarity with asynchronous tools (Celery). Interest in modernising legacy systems and introducing new web technologies. Strong communication skills for collaborating in a multi-disciplinary team. Please apply for further details. More ❯

skilled developer with a strong foundation in C#, Java, Erlang, or Go ? Do you dream of working on cutting-edge AI initiatives while reimagining the backbone of mission-critical systems? This is your opportunity to join a globally recognised brand at the forefront of digital innovation. About the Company We're a global leader in our sector, trusted by … to be part of a journey that shapes the future of AI in a real-world, high-impact environment. What You’ll Work On Re-architecting legacy systems into scalable, modern cloud-based solutions (Using GCP) Building greenfield applications from the ground up with a strong AI-first mindset Collaborating with data scientists, ML engineers, and product … teams to deliver AI-powered solutions Using your expertise in C#, Java, or Go to build resilient, high-performance systems About You Strong experience with C#, Java, or Go A genuine interest in AI/ML (previous experience is a bonus, but not required) Comfortable navigating and improving legacy codebases Eager to work on greenfield projects and More ❯

implementation team Manage project plans, milestones, risks, and budgets across HR, Payroll, IT, and Finance Oversee system configuration, UAT, and deployment activities Coordinate data migration from legacy systems and integration into enterprise data structures Develop training and change plans to support adoption across HR and the wider business Drive continuous improvement and post-go-live optimisation What More ❯

implementation team Manage project plans, milestones, risks, and budgets across HR, Payroll, IT, and Finance Oversee system configuration, UAT, and deployment activities Coordinate data migration from legacy systems and integration into enterprise data structures Develop training and change plans to support adoption across HR and the wider business Drive continuous improvement and post-go-live optimisation What More ❯

implementation team Manage project plans, milestones, risks, and budgets across HR, Payroll, IT, and Finance Oversee system configuration, UAT, and deployment activities Coordinate data migration from legacy systems and integration into enterprise data structures Develop training and change plans to support adoption across HR and the wider business Drive continuous improvement and post-go-live optimisation What More ❯

ll Be Doing: Remediating outstanding Exchange-related issues as part of our M365 migration. Working closely with internal teams to troubleshoot and resolve complex mail flow, mailbox, and legacy system challenges. Supporting a Higher Education (HE) environment-so experience in this sector is highly desirable. ? What We're Looking For: Proven expertise in Microsoft Exchange (on-prem & online More ❯

fit right in. The Role You'll play a key role in developing new features, building applications from the ground up, and supporting the migration of legacy systems to the latest version of .NET, including the use of containerisation. You'll also work closely with analysts and other developers to continuously improve product performance and user experience. More ❯