1 to 25 of 61 Legacy Code Jobs in the UK

operations – a mature, revenue-generating system that has evolved over years and continues to scale. If you enjoy owning real systems, thinking architecturally, improving legacy code thoughtfully rather than rewriting it, and being trusted to deliver without heavy supervision, this role will feel unusually well-matched. The role … calm, root-cause mindset Incrementally improving system architecture using sound design principles (including modular design, DDD-style thinking, and pragmatic architectural patterns) Reviewing code, raising standards constructively, and contributing to a disciplined engineering culture Leveraging modern tooling (including AI-assisted development) to improve quality and velocity This ...

Agile development team but take the lead on the COBOL work. The role is hands-on, mixing new development, BAU enhancement, production support and code archaeology across the legacy estate. Responsibilities: Writing new Enterprise COBOL programs and enhancing existing ones, including embedded SQL against DB2 Owning batch … online CICS transactions, including BMS maps and copybooks Code archaeology and data analysis across legacy modules Supporting release management and code promotion across environments Mentoring junior team members and helping shape technical standards Your experience will ideally include: Multiple years of Enterprise COBOL or VS COBOL ...

Agile development team but take the lead on the COBOL work. The role is hands-on, mixing new development, BAU enhancement, production support and code archaeology across the legacy estate. Responsibilities: Writing new Enterprise COBOL programs and enhancing existing ones, including embedded SQL against DB2 Owning batch … online CICS transactions, including BMS maps and copybooks Code archaeology and data analysis across legacy modules Supporting release management and code promotion across environments Mentoring junior team members and helping shape technical standards Your experience will ideally include: Multiple years of Enterprise COBOL or VS COBOL ...

market. Having received huge investment, they are on a journey to truly disrupt the industry and are not held back by any legacy code or old customers. This means that they're able to build out state-of-the-art, Greenfield code which can focus on being ...

market. Having received huge investment, they are on a journey to truly disrupt the industry and are not held back by any legacy code or old customers. This means that they're able to build out state-of-the-art, Greenfield code which can focus on being ...

with the latest tech A collaborative mindset and willingness to help shape a new engineering culture Why Join Us? A true greenfield project no legacy code, no constraints First hires into a new team influence the architecture, tooling, and ways of working Job security backed by a financially ...

help build, modernise, and support business-critical Windows applications for this fantastic Software Consultancy. If you enjoy C#, SQL Server, system integrations, and transforming legacy code into clean, modern.NET solutions, this is a great opportunity to make a real impact. Work with: C#, .NET/.NET Core, WinForms ...

team is building systems that detect infringement, streamline R&D, and empower creators to move faster. It’s a true greenfield opportunity, no legacy code, no bureaucracy, just the freedom to solve challenging technical problems with impact. The founding team comes from some of the world’s most ...

lean heavily into AI‐driven development. Using Goldman Sachs' AI tooling and agentic coding assistants, you will govern multiple AI agents, rapidly comprehend large legacy codebases, generate and assess production‐quality code, and accelerate every phase of the software development lifecycle. Your Impact Drive a strategic transformation : Work … centric, AI‐driven world, and define and deliver the requirements for CTL integration. Multiply your output with AI : Orchestrate AI coding agents (e.g., Claude Code, GitHub Copilot, Devin, Gemini Code Assist) across all stages of the SDLC while maintaining mastery, quality, and production fitness over all AI‐generated ...

lean heavily into AI‐driven development. Using Goldman Sachs' AI tooling and agentic coding assistants, you will govern multiple AI agents, rapidly comprehend large legacy codebases, generate and assess production‐quality code, and accelerate every phase of the software development lifecycle. Your Impact Drive a strategic transformation : Work … centric, AI‐driven world, and define and deliver the requirements for CTL integration. Multiply your output with AI : Orchestrate AI coding agents (e.g., Claude Code, GitHub Copilot, Devin, Gemini Code Assist) across all stages of the SDLC while maintaining mastery, quality, and production fitness over all AI‐generated ...

that were previously thought impossible. This is not a standard software house. This is a rare opportunity for a hardware-curious engineer to write code that has a direct, physical impact in a high-calibre, fast-paced environment. The Role Develop: Write high-quality Embedded C/C++ code … your work in action. Background: A degree in Software Engineering, Electronics, or a related STEM discipline. Why Apply? This role isn't about maintaining legacy code; its about shaping the future of motion control. You will join a team of elite engineers based in a vibrant city-centre ...

send your CV and application. This is not a standard software house. This is a rare opportunity for a hardware-curious engineer to write code that has a direct, physical impact in a high-calibre, fast-paced environment. The Role Develop: Write high-quality Embedded C/C++ code … your work in action. Background: A degree in Software Engineering, Electronics, or a related STEM discipline. Why Apply? This role isn't about maintaining legacy code; its about shaping the future of motion control. You will join a team of elite engineers based in a vibrant city-centre ...

send your CV and application. This is not a standard software house. This is a rare opportunity for a hardware-curious engineer to write code that has a direct, physical impact in a high-calibre, fast-paced environment. The Role Develop: Write high-quality Embedded C/C++ code … your work in action. Background: A degree in Software Engineering, Electronics, or a related STEM discipline. Why Apply? This role isn't about maintaining legacy code; its about shaping the future of motion control. You will join a team of elite engineers based in a vibrant city-centre ...

send your CV and application. This is not a standard software house. This is a rare opportunity for a hardware-curious engineer to write code that has a direct, physical impact in a high-calibre, fast-paced environment. The Role Develop: Write high-quality Embedded C/C++ code … your work in action. Background: A degree in Software Engineering, Electronics, or a related STEM discipline. Why Apply? This role isn't about maintaining legacy code; its about shaping the future of motion control. You will join a team of elite engineers based in a vibrant city-centre ...

overview of this opportunity below. This is not a standard software house. This is a rare opportunity for a hardware-curious engineer to write code that has a direct, physical impact in a high-calibre, fast-paced environment. The Role * Develop: Write high-quality Embedded C/C++ code … your work in action. * Background: A degree in Software Engineering, Electronics, or a related STEM discipline. Why Apply? This role isn't about maintaining legacy code; it’s about shaping the future of motion control. xkybehq You will join a team of elite engineers based in a vibrant ...

redesign of their data stack, including containerising workflows, migrating to cloud SQL, and introducing tools like Prefect. Maintain and optimise 60 Python pipelines, refactoring legacy code into modular components. Keep Power BI dashboards accurate and up to date, supporting evolving business needs. Help implement validation and anomaly detection … their pipelines to ensure data integrity. Manage Git workflows and assist in setting up lightweight deployment pipelines. Maintain clear, up-to-date records of code, processes, and workflows. Occasionally assist the research desk with Python-based analysis and data visualisation. Skills & Experience: Essentials: BSc in Computer Science ...

complex, regulated data environments. Key Responsibilities Perform source-to-target mapping , documenting field-level lineage across systems and transformation layers Analyse and interpret complex legacy SQL stored procedures (including multi-CTE logic, temp tables, and parameterised pipelines) Support data migration validation , ensuring accuracy and completeness of migrated datasets Conduct … migration within complex environments Strong background in financial services , ideally wealth or asset management Advanced SQL skills , with the ability to independently analyse complex legacy code Demonstrated experience in: Source-to-target mapping Data lineage documentation Migration validation and reconciliation Familiarity with medallion architecture principles Strong documentation skills ...

engineering team and work directly with the CTO on the systems that sit at the heart of the product. This isn’t about maintaining legacy code or picking up tickets. It’s about building, improving, and scaling a platform that directly impacts customer experience and revenue. The environment ...

will have real ownership, real influence on architecture and direction, and the opportunity to rebuild and redesign systems end to end rather than maintaining legacy code. What you will be working on Designing and building high performance C++ systems that sit directly in the live trading path Optimising latency ...

projects, plus flexible working that fits around your life. And with greenfield apps to sink your teeth into, you won't just be maintaining legacy code you'll be building things that matter. You'll work with the latest tools in a C# .NET environment ...

projects, plus flexible working that fits around your life. And with greenfield apps to sink your teeth into, you won't just be maintaining Legacy code you'll be building things that matter. You'll work with the latest tools in a C# .NET environment ...

projects, plus flexible working that fits around your life. And with greenfield apps to sink your teeth into, you won't just be maintaining legacy code you'll be building things that matter. You'll work with the latest tools in a C# .NET environment ...

projects, plus flexible working that fits around your life. And with greenfield apps to sink your teeth into, you won't just be maintaining legacy code you'll be building things that matter. You'll work with the latest tools in a C# .NET environment ...

projects, plus flexible working that fits around your life. And with greenfield apps to sink your teeth into, you won't just be maintaining legacy code you'll be building things that matter. You'll work with the latest tools in a C# .NET environment ...

projects, plus flexible working that fits around your life. And with greenfield apps to sink your teeth into, you won't just be maintaining legacy code you'll be building things that matter. You'll work with the latest tools in a C# .NET environment ...