1 to 25 of 42 Legacy Code Jobs in the UK

further grow and diversify their SaaS solutions offering. In this role, you'll take ownership of both new and existing systems, including maintaining legacy code where required. You'll be hands-on across Laravel applications, APIs, and third-party integrations, working as part of a multidisciplinary team … over development and direction in a role that offers support, progression, and development opportunities. The Role: *Take ownership of new and existing systems, including legacy code, with responsibility for how they evolve *Lead the hands-on development of a growing software suite across Laravel, APIs, and third-party ...

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 ...

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 ...

Node.js Developer Location: Ashford Salary: Up to £35k DOE Level: Junior/early-career Do these questions sound like you? Do you enjoy writing code and want to keep getting better at it? Are you interested in cloud computing and AWS, even if you are still early on that … will be supported, trained, and encouraged to grow technically and professionally. What you will be getting involved in Writing and improving JavaScript/Node.js code Contributing to real products and services, not toy projects Working with cloud-hosted applications, with exposure to AWS Learning how applications are deployed, scaled ...

Implement new features and improve existing functionality Debug, test, and resolve software defects Work with internal stakeholders to understand business requirements Maintain and improve legacy systems while contributing to modernisation efforts Integrate with third-party systems and APIs Contribute to documentation and handover processes Follow version control and release … procedures About you We are looking for a practical problem solver who can work through real business scenarios. You should be comfortable working with legacy code and improving it safely, and a clear communicator with non-technical stakeholders. We value attention to detail, ownership of delivered work ...

will take ownership of modularizing large existing codebases and setting up the architecture for new projects from scratch. You will work closely with code, design and art teams to ensure our technical pipeline is scalable, maintainable, and efficient. The ideal candidate is an expert in software design patterns … define coding standards and mentor the team toward a cleaner, more robust code infrastructure. Responsibilities Architect and build scalable game systems from the ground up for new, greenfield projects, ensuring they are built on a solid, future-proof foundation. Lead the refactoring of legacy code, transitioning monolithic ...

platform while actively contributing to its evolution toward modern .NET and Azure technologies. This is not a pure greenfield role. It is not a legacy-only support role. It is a genuine blend of both. The Role You will work on a business-critical lending platform used daily … SOLID principles and TDD Mentoring experience The Ideal Candidate You will thrive here if you: Enjoy working with complex systems Are comfortable maintaining legacy code Are motivated to modernise and improve platforms Communicate clearly and confidently Want long-term impact rather than short-term project work ...

platform while actively contributing to its evolution toward modern .NET and Azure technologies. This is not a pure greenfield role. It is not a legacy-only support role. It is a genuine blend of both. The Role You will work on a business-critical lending platform used daily … SOLID principles and TDD Mentoring experience The Ideal Candidate You will thrive here if you: Enjoy working with complex systems Are comfortable maintaining legacy code Are motivated to modernise and improve platforms Communicate clearly and confidently Want long-term impact rather than short-term project work ...

understanding of agile and similar software development processes including how to adapt these methods to maximise success in multi-partner projects Experience maintaining legacy code and systems including migration to new implementations Knowledge of deployment infrastructures including virtual machines, commercial cloud and kubernetes Experience with collaborative development tools … installation grant (as applicable) Campus life: Free shuttle bus to and from work, on-site library, subsidised on-site gym and cafeteria, casual dress code, extensive sports and social club activities (on campus and remotely) Family benefits: On-site nursery, child sick leave, generous parental leave, holiday clubs ...

About the Role Bolt Technical are hiring exclusively for a growing SaaS business. This is a key senior hire to take ownership of a legacy LAMP (Linux, Apache, MySQL, PHP) platform, modernising it pragmatically while supporting a small, fast-moving team. The role offers significant influence over technical direction … long-term path to CTO as the business scales. Key Responsibilities Own and develop a LAMP-based full-stack platform Audit, refactor, and improve legacy code without full rewrites Introduce modern front-end frameworks (React, Vue, Angular) Design and maintain APIs (REST/GraphQL) Improve performance, security ...

learning and simulated phishing. Our platform delivers training to hundreds of thousands of end-users, supported by a sophisticated technical estate spanning modern and legacy applications, large scale containerised infrastructure, and integrated third-party tooling. The Opportunity As the Head of Engineering, you will be the most senior technical … Full-Stack Execution: Hands-on development across multiple stacks (Svelte/SvelteKit, Node.js, Laravel/PHP). Codebase Stewardship: Maintaining, extending, and pragmatically modernising legacy code while ensuring steady feature delivery. Quality Assurance: Promoting code quality, establishing CI/CD best practices, and developing internal automation tooling. ...

Work closely with testers, designers, and project managers to ensure quality work. Process Improvement: Identify areas for improvement in business processes and suggest solutions. Legacy System Modernisation: Upgrade older applications using modern tools like Power Apps, MS Dynamics, and Azure SQL. Documentation: Create clear and detailed technical and functional … build relationships quickly with stakeholders. Strong planning and prioritization skills. Considerate of how your decisions affect others. Technical Skills: Ability to debug and interpret legacy code in Visual Studio.Net, C#, WPF, ASP.Net, REST, SSIS, TSQL, and SPROCs. Experience in migrating legacy systems to modern platforms like Power ...

concepts into tangible business valueYour experience should include...7+ Years of experience in a similar role.Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET is transferableDemonstrated ability to move beyond ...

business value Your experience should include... 7+ Years of experience in a similar role. Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET is transferable Demonstrated ability to move ...

concepts into tangible business valueYour experience should include...7+ Years of experience in a similar role.Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET is transferableDemonstrated ability to move beyond ...

business value Your experience should include... 7+ Years of experience in a similar role. Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET is transferable Demonstrated ability to move ...

business value Your experience should include... 7+ Years of experience in a similar role. Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET is transferable Demonstrated ability to move ...

business value Your experience should include... 7+ Years of experience in a similar role. Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET is transferable Demonstrated ability to move ...

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 ...

concepts into tangible business valueYour experience should include...7+ Years of experience in a similar role.Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET is transferableDemonstrated ability to move beyond ...

business value Your experience should include... 7+ Years of experience in a similar role. Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET is transferable Demonstrated ability to move ...

business value Your experience should include... 7+ Years of experience in a similar role. Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET is transferable Demonstrated ability to move ...

concepts into tangible business valueYour experience should include...7+ Years of experience in a similar role.Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET is transferableDemonstrated ability to move beyond ...

business value Your experience should include... 7+ Years of experience in a similar role. Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET is transferable Demonstrated ability to move ...