1 to 25 of 33 Legacy Code Jobs in England

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 ...

replacing a very experienced member of staff so requires an experienced Oracle PL/SQL Developer at an Enterprise level. Requiring experience of migrating legacy code and designing new code and interfaces. You will be experienced and familiar of concepts and best practices and can look … bigger picture when looking at code and a piece of work. You will be a great problem solver, enjoy working collaboratively but also independently when required and have a high attention to detail, taking pride in your work. The role is based at Head Office with local parking ...

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 ...

vendor that’s utilised within the Financial Service industry. What You’ll Work With C# .NET Framework SQL Server WinForms desktop applications Azure infrastructure Legacy platform modernisation Automated testing Kafka Future platform direction includes: Docker/containerisation Modernised execution architecture Core Responsibilities: Maintain and improve the trading execution platform … Refactor and enhance a long-lived C#/.NET application Make safe changes to legacy code while preserving behaviour Write tests that validate and document system behaviour Deliver small, well-structured changes with clear commits Work with traders to support real-time trading needs Improve system usability ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 click apply for full job details ...

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 ...

will need to be in the office twice a week. Key Responsibilities Generation of Suite Scripts to fulfil business requirements Understand, Maintain & Update Legacy Code Ability to accurately document & communicate scripts & workflows NetSuite Report Generation & Modification NetSuite System Updates - including products, classes, customers Ensuring that workflows within NetSuite ...

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 ...

Observability: Incorporating robust monitoring, alerting, and reliability into every service. Engineering Culture: Open Source friendly (internal and external) with a pragmatic approach to improving legacy code. Deep understanding of financial systems What’s on Offer Competitive salary and benefits package. Discretionary performance-related bonus. Dedicated budget for continued development ...

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 ...

development patterns, context management, and test-driven development. Confident delivering technical training to varied audiences and managing live troubleshooting. Experience working with MCP servers, legacy codebases, or multi-tool AI development environments is highly beneficial. How to Apply If you are excited by the opportunity to teach cutting-edge ...

daily Why this role is different Massive autonomy - you're not one of 20 engineers; your work is the work Greenfield build - no legacy code to untangle Direct access to technical leadership Clear, valuable real-world use case Hybrid flexibility after the first month If you enjoy creating ...

NetSuite environment, ensuring our data and workflows are as high-performing as our team. Scripting: Generating SuiteScripts to solve business puzzles and maintaining legacy code. Optimisation: Managing system updates (products, classes, customers) and ensuring workflows run like clockwork. Data & Insights: Handling migrations, imports/exports, and building powerful reports ...

looking for a Junior Control Systems Engineer to join the team immediately. This is not a maintenance role. This is not just editing legacy code. You ll be developing PLC programs from scratch, contributing to full system design, producing electrical documentation, and supporting complete machine delivery. What ...

help us deliver for our customers while we modernise our platform. About You Strong COBOL developer who takes pride in producing reliable, maintainable code Good SQL knowledge and comfortable working with data-heavy systems Keen to work in an Agile environment and contribute as part of a Scrum team … Confident working in an existing legacy codebase, but know when to ask for help Interested in modernisation — including the opportunity to transition into Java over time The Role In this role you’ll enhance and maintain our legacy COBOL code that supports key functionality in our Altair ...

Confident writing and optimising SQL queries, scripts and stored procedures. Practical experience with Octopus Deploy, Azure Pipelines and RESTful APIs. Solid understanding of clean code practices, Agile delivery and thorough code review. Able to troubleshoot production issues and improve or refactor legacy codebases. Excellent communicator ...

designed state machines. 🔥 What You’ll Work On Develop robust embedded software for real‐time and safety-critical environments. Deliver clean, maintainable, fully tested code that meets engineering standards. Debug, optimise, and push performance limits across embedded Linux systems. Follow strong secure coding practices and participate in architecture/… Deep experience with embedded Linux (bonus points for PetaLinux + driver-level work). Strong C++ development skills for embedded targets — including reading & improving legacy code. Ability to capture and manage software requirements (DOORS experience ideal). Experience designing complex embedded architectures + UML proficiency . Solid documentation ...