24 of 24 Legacy Code Jobs in the Thames Valley

to attract the best talent on the 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 the worlds most More ❯

projects, ensuring high-quality delivery. Design and implement complex software applications, emphasizing robust and scalable solutions. Collaborate with cross-functional teams to define, design, and ship new features. Ensure code quality and maintainability through code reviews and adherence to design patterns. Optimize the performance of web applications to ensure fast and efficient user experiences. Mentor junior engineers and … promote a culture of continuous learning and improvement. Address and refactor legacy code, bringing it up to modern standards and practices. Drive changes in coding practices and standards to improve code quality and team efficiency. Develop and maintain backend services and APIs, ensuring seamless integration with front-end applications. Requirements Excellent communication skills and the ability to More ❯

Performance management Escalation management Administration Scrum mastering/team leadership Help remove blockers and impediments for your team Monitor team's progress through tasks and sprints Test and review code for technical accuracy, standards, and functional compliance to the design Facilitate standups, refinement sessions, planning and retrospectives Build effective working relationship with Product Owners Hands-on development in an … agile environment Analyse software requirements Identify impact of possible implementation options Design robust and scalable solutions Write unit tests Performance improvement and refactoring of legacy code Work within deadlines in relation to product release timelines, and consistently complete assigned development tasks in required timeframes Create and defend estimates and help the team do the same Follow and contribute … Performance management Escalation management Administration Scrum mastering/team leadership Help remove blockers and impediments for your team Monitor team's progress through tasks and sprints Test and review code for technical accuracy, standards, and functional compliance to the design Facilitate standups, refinement sessions, planning and retrospectives Build effective working relationship with Product Owners Hands-on development in an More ❯

developer environment. Work closely with cross-functional teams to ensure effective delivery and knowledge sharing across the organisation. Support the growth of junior developers through guidance and mentorship. Perform code reviews to uphold high standards of code quality and reinforce best practices. Key Experience Required: Extensive hands-on experience with C++, including deep familiarity with commercial development environments. … continuous professional growth. Exposure to high-level languages; Python and C# experience is a plus. Familiarity with CI/CD workflows and tooling. Skilled in working with and modernizing legacy codebases. The Package: Basic annual salary up to £85,000 (dependant on experience) Remote working. Occasional expensed travel for office and home working expenses. Cycle to work scheme. Pension More ❯

of the energy grid. Design and deliver scalable front-end systems using React, TypeScript, and Next.js Work with large datasets and integrate secure APIs/microservices Modernise and refactor legacy codebases to enterprise standards Collaborate in a DevSecOps environment with strict CI/CD and compliance requirements Experience: Advanced React & TypeScript experience with strong programming fundamentals Skilled in managing More ❯

and motivate a team of developers - Oversee performance and escalation management - Lead scrum activities and remove blockers for the team - Monitor progress and ensure task completion within deadlines - Conduct code reviews and ensure compliance with design standards - Collaborate with Product Owners and contribute to software requirements analysis - Design scalable solutions and write unit tests - Refactor legacy code More ❯

proactive and require minimal supervision or mentoring to complete tasks Review specifications produced by architects and formal methods specialists Contribute to the design of algorithms Write clean, straightforward, efficient code that satisfies previously agreed acceptance criteria and specifications Commit often and submit small pull requests frequently Cover your code with unit, property and integration tests when applicable Review … the pull requests of your team mates Fix bugs in your own code and in legacy code from others Be available for emergency fixing of severity 1 issues on deployed products Integrate software components and third-party libraries Verify and deploy programs and systems Troubleshoot, debug and upgrade existing software Write documentation for the code Write … technical user manuals Be knowledgeable of distributed and concurrent computation Be knowledgeable of the basics of cryptography Write idiomatic code that satisfies the acceptance criteria of a given task Write tests (unit tests, property tests) that provide sufficient and non-superfluous efficient code coverage. Document code and APIs concisely and unambiguously Break down tasks into sub-tasks More ❯

proactive and require minimal supervision or mentoring to complete tasks Review specifications produced by architects and formal methods specialists Contribute to the design of algorithms Write clean, straightforward, efficient code that satisfies previously agreed acceptance criteria and specifications Commit often and submit small pull requests frequently Cover your code with unit, property and integration tests when applicable Review … the pull requests of your team mates Fix bugs in your own code and in legacy code from others Be available for emergency fixing of severity 1 issues on deployed products Integrate software components and third-party libraries Verify and deploy programs and systems Troubleshoot, debug and upgrade existing software Write documentation for the code Write … technical user manuals Be knowledgeable of distributed and concurrent computation Be knowledgeable of the basics of cryptography Write idiomatic code that satisfies the acceptance criteria of a given task Write tests (unit tests, property tests) that provide sufficient and non-superfluous efficient code coverage. Document code and APIs concisely and unambiguously Break down tasks into sub-tasks More ❯

proactive and require minimal supervision or mentoring to complete tasks Review specifications produced by architects and formal methods specialists Contribute to the design of algorithms Write clean, straightforward, efficient code that satisfies previously agreed acceptance criteria and specifications Commit often and submit small pull requests frequently Cover your code with unit, property and integration tests when applicable Review … the pull requests of your team mates Fix bugs in your own code and in legacy code from others Be available for emergency fixing of severity 1 issues on deployed products Integrate software components and third-party libraries Verify and deploy programs and systems Troubleshoot, debug and upgrade existing software Write documentation for the code Write … technical user manuals Be knowledgeable of distributed and concurrent computation Be knowledgeable of the basics of cryptography Write idiomatic code that satisfies the acceptance criteria of a given task Write tests (unit tests, property tests) that provide sufficient and non-superfluous efficient code coverage. Document code and APIs concisely and unambiguously Break down tasks into sub-tasks More ❯

proactive and require minimal supervision or mentoring to complete tasks Review specifications produced by architects and formal methods specialists Contribute to the design of algorithms Write clean, straightforward, efficient code that satisfies previously agreed acceptance criteria and specifications Commit often and submit small pull requests frequently Cover your code with unit, property and integration tests when applicable Review … the pull requests of your team mates Fix bugs in your own code and in legacy code from others Be available for emergency fixing of severity 1 issues on deployed products Integrate software components and third-party libraries Verify and deploy programs and systems Troubleshoot, debug and upgrade existing software Write documentation for the code Write … technical user manuals Be knowledgeable of distributed and concurrent computation Be knowledgeable of the basics of cryptography Write idiomatic code that satisfies the acceptance criteria of a given task Write tests (unit tests, property tests) that provide sufficient and non-superfluous efficient code coverage. Document code and APIs concisely and unambiguously Break down tasks into sub-tasks More ❯

proactive and require minimal supervision or mentoring to complete tasks Review specifications produced by architects and formal methods specialists Contribute to the design of algorithms Write clean, straightforward, efficient code that satisfies previously agreed acceptance criteria and specifications Commit often and submit small pull requests frequently Cover your code with unit, property and integration tests when applicable Review … the pull requests of your team mates Fix bugs in your own code and in legacy code from others Be available for emergency fixing of severity 1 issues on deployed products Integrate software components and third-party libraries Verify and deploy programs and systems Troubleshoot, debug and upgrade existing software Write documentation for the code Write … technical user manuals Be knowledgeable of distributed and concurrent computation Be knowledgeable of the basics of cryptography Write idiomatic code that satisfies the acceptance criteria of a given task Write tests (unit tests, property tests) that provide sufficient and non-superfluous efficient code coverage. Document code and APIs concisely and unambiguously Break down tasks into sub-tasks More ❯

and advancement of complex software • Stay abreast of the latest developments in C++ and related technologies, contributing to a progressive developer experience • Mentor and coach junior team members • Conduct code reviews, embedding quality and promoting best practices • Collaborate closely with other teams to ensure smooth delivery and knowledge distribution • Promote a balance between business value, technological improvements, and near … and communication skills • Industry experience with multi-threading and complex memory management • Keen interest in continuous improvement and personal development • Experience with CI/CD pipelines • Adept in managing legacy code bases • Experience with higher level languages - specifically Python and C# would be beneficial • Comfortable working across technology domains and software stacks • Strong knowledge of Linux and Windows More ❯

improvement initiatives and enhancements Collaborate with cross-functional teams, managing requests and troubleshooting issues Diagnosing problems by consulting with domain experts to broaden technical understanding Maintaining and supporting a legacy system, including its outdated deployment processes Support and enhance the current system, ensuring stability and functionality Implement updates within a legacy codebase, assuming technical ownership and building deep … subject knowledge Refresh technical documentation as and when updates are made to the service Ensure all modifications undergo peer validation before being merged Push all approved code changes to the main project branch Design, execute, and pass feature-level and external API tests as appropriate Revise API documentation in alignment with functional updates where needed Present developed features for More ❯

by colleagues who are at the top of their fields, pushing the boundaries of technology and finance every day. Innovation & Impact: Work in a modern, young codebase with minimal legacy code and technical debt. You’ll have the freedom to choose the best technology for the job, allowing you to innovate and deliver at an unmatched scale. They More ❯

initial 6-12 months contract. You'll be working on exiting projects with their high-profile end client, offering the chance to work on a variety of modern and legacy systems. You must be an accomplished Contract Angular Full Stack Developer to add value to the project from day one. What You'll Do: Work across the full stack … from dynamic front-end interfaces to robust back-end systems. Play a key role in modernising legacy components while supporting existing business-critical systems Alongside the redevelopment of existing platforms, you will contribute to building new products and functionality. Collaborate with a distributed team to deliver high-quality, maintainable code. Tech Stack: Angular (v5 - v17) - Angular experience, ideally across … happy to work with Angular C#/.NET - Server-side development and modern framework experience. Web API's - RESTful API development and integration NET - Willingness to occasionally work with legacy code when necessary TDD- understanding of basic principles to ensure high-quality, maintainable code Are you a Contract Angular Full Stack Developer looking for your next role More ❯

initial 6-12 months contract. You'll be working on exiting projects with their high-profile end client, offering the chance to work on a variety of modern and legacy systems. You must be an accomplished Contract Angular Full Stack Developer to add value to the project from day one. What You'll Do: Work across the full stack … from dynamic front-end interfaces to robust back-end systems. Play a key role in modernising legacy components while supporting existing business-critical systems Alongside the redevelopment of existing platforms, you will contribute to building new products and functionality. Collaborate with a distributed team to deliver high-quality, maintainable code. Tech Stack: Angular (v5 - v17) - Angular experience, ideally across … happy to work with Angular C#/.NET - Server-side development and modern framework experience. Web API's - RESTful API development and integration NET - Willingness to occasionally work with legacy code when necessary TDD- understanding of basic principles to ensure high-quality, maintainable code Are you a Contract Angular Full Stack Developer looking for your next role More ❯

initial 6-12 months contract. You'll be working on exiting projects with their high-profile end client, offering the chance to work on a variety of modern and legacy systems. You must be an accomplished Contract Angular Full Stack Developer to add value to the project from day one. What You'll Do: Work across the full stack … from dynamic front-end interfaces to robust back-end systems. Play a key role in modernising legacy components while supporting existing business-critical systems Alongside the redevelopment of existing platforms, you will contribute to building new products and functionality. Collaborate with a distributed team to deliver high-quality, maintainable code. Tech Stack: Angular (v5 - v17) - Angular experience, ideally across … happy to work with Angular C#/.NET - Server-side development and modern framework experience. Web API's - RESTful API development and integration NET - Willingness to occasionally work with legacy code when necessary TDD- understanding of basic principles to ensure high-quality, maintainable code Are you a Contract Angular Full Stack Developer looking for your next role More ❯

initial 6-12 months contract. You'll be working on exiting projects with their high-profile end client, offering the chance to work on a variety of modern and legacy systems. You must be an accomplished Contract Angular Full Stack Developer to add value to the project from day one. What You'll Do: Work across the full stack … from dynamic front-end interfaces to robust back-end systems. Play a key role in modernising legacy components while supporting existing business-critical systems Alongside the redevelopment of existing platforms, you will contribute to building new products and functionality. Collaborate with a distributed team to deliver high-quality, maintainable code. Angular (v5 - v17) - Angular experience, ideally across multiple versions … happy to work with Angular C#/.NET - Server-side development and modern framework experience. Web API's - RESTful API development and integration NET - Willingness to occasionally work with legacy code when necessary TDD- understanding of basic principles to ensure high-quality, maintainable code Are you a Contract Angular Full Stack Developer looking for your next role More ❯

live PnL attribution and feedback to researchers & traders. Hire and mentor the team that will scale this from “clever prototype” to “firm-wide PnL driver”. Green-field. No legacy code. You set the standards. The Opportunity All the levers, none of the red tape – direct line to the head of the HFT business, a chance to own the More ❯

don't worry full support given to get you up to speed!) Have built sales collateral from scratch and can show samples of win-oriented content Are energized by legacy code challenges, application refactoring, and helping platform engineers succeed Have worked closely with Solution Engineers on proof-of-value cycles Are a clear, structured thinker who loves turning More ❯

don't worry full support given to get you up to speed!) Have built sales collateral from scratch and can show samples of win-oriented content Are energized by legacy code challenges, application refactoring, and helping platform engineers succeed Have worked closely with Solution Engineers on proof-of-value cycles Are a clear, structured thinker who loves turning More ❯

and maintains unit tests for Java applications. It works 250 times faster than a human and is 26x more productive than an experienced developer using the latest LLM-based code assistant tools like Copilot. We enable our customers to ship better quality software faster and with less toil for developers. Diffblue spun out of the University of Oxford and … messaging frameworks that speak to application modernization , test automation , and platform velocity. Own competitive positioning and mutation testing frameworks Translate proof-of-value data into compelling business cases for legacy coverage uplift Write and produce mid- to bottom-funnel collateral: Technical battlecards, customer validation slide decks, and objection-handling guides Solution briefs for architects and platform owners Video content … cycles and close technical wins Collaborate with AEs on strategic accounts to tailor solution messaging Collaborate with Demandgen on acquisition of new leads. Inform pricing and packaging discussions for legacy-focused use cases Skills, Knowledge and Expertise Have at least 3 years of B2B SaaS product marketing experience, ideally in DevTools, testing, or developer platforms. Can learn to speak More ❯

and maintains unit tests for Java applications. It works 250 times faster than a human and is 26x more productive than an experienced developer using the latest LLM-based code assistant tools like Copilot. We enable our customers to ship better quality software faster and with less toil for developers. Diffblue spun out of the University of Oxford and … messaging frameworks that speak to application modernization , test automation , and platform velocity. Own competitive positioning and mutation testing frameworks Translate proof-of-value data into compelling business cases for legacy coverage uplift Content Development Write and produce mid- to bottom-funnel collateral: Technical battlecards, customer validation slide decks, and objection-handling guides Solution briefs for architects and platform owners … cycles and close technical wins Collaborate with AEs on strategic accounts to tailor solution messaging Collaborate with Demandgen on acquisition of new leads. Inform pricing and packaging discussions for legacy-focused use cases Skills, Knowledge and Expertise Have at least 3 years of B2B SaaS product marketing experience, ideally in DevTools, testing, or developer platforms. Can learn to speak More ❯

next opportunity! Responsibilities: Lead technical design for the platform Manage a team of 3 developers Balance 60/40 split between hands-on development and management Oversee modernization of legacy code to .NET 9 Assist in ISO27001 implementation Experience: Extensive experience with .NET & C# Strong understanding of Azure and its services Experience implementing ISO27001 The role offers a More ❯