1 to 25 of 191 Permanent Legacy Systems Jobs in England

in cloud architecture and implementation Bachelor's degree in Computer Science, Engineering, related field, or equivalent experience Substantial hands-on technical experience with mainframe, non-x86 legacy systems and with technologies such as COBOL, JCL, CICS, DB2 for z/OS, Assembler, PL/I, Java, Rexx, flat/sequential files, GDGs, and VSAM Proven track record … in a technical lead role migrating workloads from mainframe and non-x86 legacy systems to distributed x86 infrastructures either on-premises or on to the Cloud Deep experience integrating mainframe and non-x86 legacy systems with distributed Linux-based or Windows-based x86 servers PREFERRED QUALIFICATIONS AWS associate or professional level certifications (e.g., Solutions … Architect Associate or Professional, DevOps Engineer Professional) preferred Experience leading customers with mainframe and legacy modernization initiatives Experience with tools and methodologies used to migrate mainframe workloads via hardware/middleware emulation, automated code conversion, and re-platforming Experience with analyzing on-premises mainframe applications and data stores to formulate plans for modernizing workloads that achieve customer's More ❯

mission-critical data migration projects. You'll be part of an expert unit supporting onboarding for a new cloud platform - working directly with raw datasets from legacy systems and transforming them into future-ready digital infrastructure. What You'll Be Doing: Leading data migration and ETL projects for UK public sector software implementations Analysing and mapping legacy database schemas (Oracle, SQL Server, Postgres) Extracting raw data from legacy systems, often with limited documentation Writing and executing SQL scripts and/or using ETL tools to build data pipelines Creating transformation logic and performing reconciliation and validation Working closely with customers and internal teams to troubleshoot and ensure smooth migrations This role is … Problem-solving mindset when facing incomplete or messy data A consulting approach - proactive, collaborative, and detail-driven Nice to Have: Experience with UK Local Government datasets or public sector systems Familiarity with cloud platforms (Azure, AWS, GCP) Knowledge of spatial data tools (ArcGIS, QGIS) Experience with document management systems and data validation processes What's in it for More ❯

Systems Engineering Lead Location: Farnborough, with flexibility to work from home dependent on business demands The Role: We are in search of a Systems Engineering Lead for our Leidos engineering capability. The successful Systems Engineer will have a full understanding of the principles of systems engineering, will have prior experience as a Systems Engineer on … a major programme involving accepting and integrating deliveries from suppliers. As a Systems Engineer in Leidos, you will be immersed in one of our key programmes transformation from legacy systems to cloud. On behalf of our central government customer, you will have direct impact on the current and future iterations of one of our most important … pieces of critical national infrastructure. If this sounds like the kind of environment where you can thrive, keep reading! Using your experience in Systems Engineering, you will be responsible for working with customers and suppliers to execute/lead Systems Engineering activities across the full lifecycle. What Youll Be Doing: Leader of a high-performing team to deliver More ❯

Systems Engineering Lead Location: Farnborough, with flexibility to work from home dependent on business demands The Role: We are in search of a Systems Engineering Lead for our Leidos engineering capability. The successful Systems Engineer will have a full understanding of the principles of systems engineering, will have prior experience as a Systems Engineer on … a major programme involving accepting and integrating deliveries from suppliers. As a Systems Engineer in Leidos, you will be immersed in one of our key programmes transformation from legacy systems to cloud. On behalf of our central government customer, you will have direct impact on the current and future iterations of one of our most important … pieces of critical national infrastructure. If this sounds like the kind of environment where you can thrive, keep reading! Using your experience in Systems Engineering, you will be responsible for working with customers and suppliers to execute/lead Systems Engineering activities across the full lifecycle. What Youll Be Doing: Leader of a high-performing team to deliver More ❯

Senior AI Developer £80,000 + bonus + benefits International eCommerce organisation is looking for a Senior AI Developer to lead the modernization of core systems using AI to improve performance and efficiency. We need a highly skilled Lead Developer with proven experience migrating legacy systems and implementing AI-powered solutions. Experience with modern languages and … frameworks is a plus. About the Role: Play a pivotal role in transforming technology stack and driving the adoption of AI-powered tools to enhance development workflows. Modernising critical systems and implement intelligent solutions that support business growth. Key Responsibilities: Lead the migration of legacy systems to a modern tech stack (cloud platforms, APIs) Design and … teams to redesign and improve core business applications Mentor junior developers, fostering a culture of continuous learning and innovation Essential Skills: 5+ years’ software development experience, including significant legacy system modernization Relational database expertise (e.g., Microsoft SQL Server) Familiarity with REST APIs and cloud infrastructure Hands-on experience with AI-based developer tools (e.g., GitHub Copilot, ChatGPT, Tabnine More ❯

a wide variety of projects across both modern and legacy systems. Unlike companies where engineers spend years on the same product, this business offers exposure to diverse systems and infrastructures, from short-term initiatives to large-scale programmes. Following a recent restructure, the development function has been unified into a single, collaborative team. This creates a unique … remain hands-on, contributing across the full stack and helping deliver high-quality solutions. The position is varied, offering the chance to work across modern and legacy systems, cloud platforms, and a broad technology stack. It’s an excellent opportunity for someone who enjoys balancing coding and leadership responsibilities. Key Skills: Essential Strong background in C# software … MSSQL, Postgres, or equivalent) Proven track record in leading and mentoring developers Broad technical foundation with ability to work across frontend and backend Desirable RabbitMQ or other message broker systems HTML, CSS, JavaScript (React or Vue desirable) Redis, APIs, Git, Bootstrap, SOLR (or equivalent) Experience with both modern and legacy systems Candidate Profile: Senior engineer with More ❯

year to support and empower millions of people. We're looking for a Software Engineer to join our development and maintenance teams and help keep the UK's welfare systems secure, reliable, and ready for the future. You'll support critical services and play a key role in modernising legacy systems as we move to cloud … freedom and autonomy. We write code and make decisions which shape the future engineering landscape of DWP. As part of our Development and Maintenance team, you'll ensure legacy platforms remain secure and reliable while supporting their evolution into scalable, cloud-based services. You'll tackle incidents, implement essential changes, and integrate modern technologies to improve resilience, automation … Java, C/C++, .NET and JavaScript. This is a unique opportunity to be at the heart of digital change in government, balancing the stability of legacy systems with the innovation of modern engineering. You'll be part of a supportive engineering community of over 200. We'll give you the tools and time to build your More ❯

year to support and empower millions of people. We're looking for a Software Engineer to join our development and maintenance teams and help keep the UK's welfare systems secure, reliable, and ready for the future. You'll support critical services and play a key role in modernising legacy systems as we move to cloud … freedom and autonomy. We write code and make decisions which shape the future engineering landscape of DWP. As part of our Development and Maintenance team, you'll ensure legacy platforms remain secure and reliable while supporting their evolution into scalable, cloud-based services. You'll tackle incidents, implement essential changes, and integrate modern technologies to improve resilience, automation … Java, C/C++, .NET and JavaScript. This is a unique opportunity to be at the heart of digital change in government, balancing the stability of legacy systems with the innovation of modern engineering. You'll be part of a supportive engineering community of over 200. We'll give you the tools and time to build your More ❯

year to support and empower millions of people. We're looking for a Software Engineer to join our development and maintenance teams and help keep the UK's welfare systems secure, reliable, and ready for the future. You'll support critical services and play a key role in modernising legacy systems as we move to cloud … freedom and autonomy. We write code and make decisions which shape the future engineering landscape of DWP. As part of our Development and Maintenance team, you'll ensure legacy platforms remain secure and reliable while supporting their evolution into scalable, cloud-based services. You'll tackle incidents, implement essential changes, and integrate modern technologies to improve resilience, automation … Java, C/C++, .NET and JavaScript. This is a unique opportunity to be at the heart of digital change in government, balancing the stability of legacy systems with the innovation of modern engineering. You'll be part of a supportive engineering community of over 200. We'll give you the tools and time to build your More ❯

year to support and empower millions of people. We're looking for a Software Engineer to join our development and maintenance teams and help keep the UK's welfare systems secure, reliable, and ready for the future. You'll support critical services and play a key role in modernising legacy systems as we move to cloud … freedom and autonomy. We write code and make decisions which shape the future engineering landscape of DWP. As part of our Development and Maintenance team, you'll ensure legacy platforms remain secure and reliable while supporting their evolution into scalable, cloud-based services. You'll tackle incidents, implement essential changes, and integrate modern technologies to improve resilience, automation … Java, C/C++, .NET and JavaScript. This is a unique opportunity to be at the heart of digital change in government, balancing the stability of legacy systems with the innovation of modern engineering. You'll be part of a supportive engineering community of over 200. We'll give you the tools and time to build your More ❯

year to support and empower millions of people. We're looking for a Software Engineer to join our development and maintenance teams and help keep the UK's welfare systems secure, reliable, and ready for the future. You'll support critical services and play a key role in modernising legacy systems as we move to cloud … freedom and autonomy. We write code and make decisions which shape the future engineering landscape of DWP. As part of our Development and Maintenance team, you'll ensure legacy platforms remain secure and reliable while supporting their evolution into scalable, cloud-based services. You'll tackle incidents, implement essential changes, and integrate modern technologies to improve resilience, automation … Java, C/C++, .NET and JavaScript. This is a unique opportunity to be at the heart of digital change in government, balancing the stability of legacy systems with the innovation of modern engineering. You'll be part of a supportive engineering community of over 200. We'll give you the tools and time to build your More ❯

year to support and empower millions of people. We're looking for a Software Engineer to join our development and maintenance teams and help keep the UK's welfare systems secure, reliable, and ready for the future. You'll support critical services and play a key role in modernising legacy systems as we move to cloud … freedom and autonomy. We write code and make decisions which shape the future engineering landscape of DWP. As part of our Development and Maintenance team, you'll ensure legacy platforms remain secure and reliable while supporting their evolution into scalable, cloud-based services. You'll tackle incidents, implement essential changes, and integrate modern technologies to improve resilience, automation … Java, C/C++, .NET and JavaScript. This is a unique opportunity to be at the heart of digital change in government, balancing the stability of legacy systems with the innovation of modern engineering. You'll be part of a supportive engineering community of over 200. We'll give you the tools and time to build your More ❯

year to support and empower millions of people. We're looking for a Software Engineer to join our development and maintenance teams and help keep the UK's welfare systems secure, reliable, and ready for the future. You'll support critical services and play a key role in modernising legacy systems as we move to cloud … freedom and autonomy. We write code and make decisions which shape the future engineering landscape of DWP. As part of our Development and Maintenance team, you'll ensure legacy platforms remain secure and reliable while supporting their evolution into scalable, cloud-based services. You'll tackle incidents, implement essential changes, and integrate modern technologies to improve resilience, automation … Java, C/C++, .NET and JavaScript. This is a unique opportunity to be at the heart of digital change in government, balancing the stability of legacy systems with the innovation of modern engineering. You'll be part of a supportive engineering community of over 200. We'll give you the tools and time to build your More ❯

year to support and empower millions of people. We're looking for a Software Engineer to join our development and maintenance teams and help keep the UK's welfare systems secure, reliable, and ready for the future. You'll support critical services and play a key role in modernising legacy systems as we move to cloud … freedom and autonomy. We write code and make decisions which shape the future engineering landscape of DWP. As part of our Development and Maintenance team, you'll ensure legacy platforms remain secure and reliable while supporting their evolution into scalable, cloud-based services. You'll tackle incidents, implement essential changes, and integrate modern technologies to improve resilience, automation … Java, C/C++, .NET and JavaScript. This is a unique opportunity to be at the heart of digital change in government, balancing the stability of legacy systems with the innovation of modern engineering. You'll be part of a supportive engineering community of over 200. We'll give you the tools and time to build your More ❯

year to support and empower millions of people. We're looking for a Software Engineer to join our development and maintenance teams and help keep the UK's welfare systems secure, reliable, and ready for the future. You'll support critical services and play a key role in modernising legacy systems as we move to cloud … freedom and autonomy. We write code and make decisions which shape the future engineering landscape of DWP. As part of our Development and Maintenance team, you'll ensure legacy platforms remain secure and reliable while supporting their evolution into scalable, cloud-based services. You'll tackle incidents, implement essential changes, and integrate modern technologies to improve resilience, automation … Java, C/C++, .NET and JavaScript. This is a unique opportunity to be at the heart of digital change in government, balancing the stability of legacy systems with the innovation of modern engineering. You'll be part of a supportive engineering community of over 200. We'll give you the tools and time to build your More ❯

partner for a government agency's transformation programme. They are looking for a Lead Technical Architect to join the a high-profile initiative aimed at modernising legacy systems and improving data validation across the client's business gateway. This is a fully remote role, working within a blended agile team of consultancy and end client staff. You … To be considered, you'll need: Strong background in technical architecture within large-scale digital programmes Deep understanding of API Gateway design and enhancement Experience modernising legacy systems and migrating to cloud-native platforms Solid grasp of AWS (API Gateway, Lambda, S3, VPC) Familiarity with Java, DB2, relational databases, and network concepts Desirable experience includes: OpenAPI schemas More ❯

someone who has good programming skills Microsoft programming languages. The team uses cutting edge technology, but you will ideally be versed with a wide variety of legacy systems and migrating away from these to new cutting-edge technology solutions. These positions report to the Integration Lead and Architect and you will be working alongside a team of … . Responsibilities: Design and support all integration processes including migrations to and from new businesses as well as within internal applications and databases. Migrations away from legacy systems into new applications Review, support, feedback and size requirements produced by the Analysis team. Manage your delivery commitments within the relevant sprints to ensure timely and quality delivery of More ❯

someone who has good programming skills Microsoft programming languages. The team uses cutting edge technology, but you will ideally be versed with a wide variety of legacy systems and migrating away from these to new cutting-edge technology solutions. These positions report to the Integration Lead and Architect and you will be working alongside a team of … . Responsibilities: Design and support all integration processes including migrations to and from new businesses as well as within internal applications and databases. Migrations away from legacy systems into new applications Review, support, feedback and size requirements produced by the Analysis team. Manage your delivery commitments within the relevant sprints to ensure timely and quality delivery of More ❯

someone who has good programming skills Microsoft programming languages. The team uses cutting edge technology, but you will ideally be versed with a wide variety of legacy systems and migrating away from these to new cutting-edge technology solutions. These positions report to the Integration Lead and Architect and you will be working alongside a team of … . Responsibilities: Design and support all integration processes including migrations to and from new businesses as well as within internal applications and databases. Migrations away from legacy systems into new applications Review, support, feedback and size requirements produced by the Analysis team. Manage your delivery commitments within the relevant sprints to ensure timely and quality delivery of More ❯

someone who has good programming skills Microsoft programming languages. The team uses cutting edge technology, but you will ideally be versed with a wide variety of legacy systems and migrating away from these to new cutting-edge technology solutions. These positions report to the Integration Lead and Architect and you will be working alongside a team of … . Responsibilities: Design and support all integration processes including migrations to and from new businesses as well as within internal applications and databases. Migrations away from legacy systems into new applications Review, support, feedback and size requirements produced by the Analysis team. Manage your delivery commitments within the relevant sprints to ensure timely and quality delivery of More ❯

The Opportunity We're partnering with a leading bank on a major transformation programme: the build and migration of a proprietary lending platform that will replace legacy systems and sit at the heart of their future banking operations. This is a high-profile programme where you'll work closely with senior leadership, delivering change that impacts core … leadership, providing visibility, assurance, and strategic direction. What We're Looking For Proven experience as a Programme Manager in banking or financial services . Strong knowledge of core banking systems ; lending platform exposure is highly desirable. Excellent communication and stakeholder management skills - able to influence at executive level. Track record in governance, risk management, and regulatory programmes . Ability … to lead matrixed teams and work across multiple business areas. Comfortable in environments moving from legacy systems to proprietary platforms . RSG Plc is acting as an Employment Agency in relation to this vacancy. More ❯

IT Business Systems Analyst Location: Cullompton About Us: Welcome to Gregory Distribution Ltd, where technology and logistics come together to drive operational excellence. As part of our commitment to continuous improvement, we are undertaking a group-wide IT equipment upgrade. Join our dynamic Technology Team and be part of a project that will modernise and enhance our IT infrastructure … across the UK. Job Description: Join our dynamic Technology team as an IT Business Systems Analyst , where you'll play a pivotal role in shaping and supporting the systems that drive our visionary logistics solutions. This is more than just a technical role - it's an opportunity to make a real impact across our business, helping teams work … smarter and deliver exceptional service to our customers. Key Responsibilities: Championing Business-Critical Systems: Configure, maintain, and support essential line-of-business systems that power our operations and enable us to deliver cutting-edge logistics solutions. Driving Change and Innovation: Lead the planning, implementation, and testing of system updates, feature releases, and configuration changes - whether part of strategic More ❯

IT Business Systems Analyst Location: Cullompton About Us: Welcome to Gregory Distribution Ltd, where technology and logistics come together to drive operational excellence. Maximise your chances of a successful application to this job by ensuring your CV and skills are a good match. As part of our commitment to continuous improvement, we are undertaking a group-wide IT equipment … Team and be part of a project that will modernise and enhance our IT infrastructure across the UK. Job Description: Join our dynamic Technology team as an IT Business Systems Analyst , where you'll play a pivotal role in shaping and supporting the systems that drive our visionary logistics solutions. This is more than just a technical role … it's an opportunity to make a real impact across our business, helping teams work smarter and deliver exceptional service to our customers. Key Responsibilities: Championing Business-Critical Systems: Configure, maintain, and support essential line-of-business systems that power our operations and enable us to deliver cutting-edge logistics solutions. Driving Change and Innovation: Lead the planning More ❯

Business Systems Analyst The Business Systems Analyst will play a pivotal role in shaping and optimising ESP’s use of Business Applications, including the Microsoft Dynamics 365 platform and supporting business transformation across commercial, operational, and customer-facing functions. This role will be an interface between stakeholders and technical teams, ensuring that business needs and objectives are well … of the business. The successful candidate will lead requirements gathering, process mapping and solution design, and support delivery activities. They will contribute to the development of a robust Business Systems ecosystem and its integration with the wider utilities industry. They will support the business in investigating problems and identifying appropriate solutions Key Responsibilities Analyse, map and maintain current and … and document business and system requirements, both functional and non-functional Translate business needs into functional and technical requirements and persona-based user stories for Dynamics 365 and other systems as needed Work with technical and business teams to investigate and resolve functional problems and ensure the timely resolution of systems issues Contribute to the planning, sourcing and More ❯

Business Systems Analyst The Business Systems Analyst will play a pivotal role in shaping and optimising ESP’s use of Business Applications, including the Microsoft Dynamics 365 platform and supporting business transformation across commercial, operational, and customer-facing functions. This role will be an interface between stakeholders and technical teams, ensuring that business needs and objectives are well … of the business. The successful candidate will lead requirements gathering, process mapping and solution design, and support delivery activities. They will contribute to the development of a robust Business Systems ecosystem and its integration with the wider utilities industry. They will support the business in investigating problems and identifying appropriate solutions Key Responsibilities Analyse, map and maintain current and … and document business and system requirements, both functional and non-functional Translate business needs into functional and technical requirements and persona-based user stories for Dynamics 365 and other systems as needed Work with technical and business teams to investigate and resolve functional problems and ensure the timely resolution of systems issues Contribute to the planning, sourcing and More ❯