12 of 12 Legacy Code Jobs in London

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 ...

patterns Solid experience with C#, ASP.Net MVC and Entity Framework Someone who values autonomy, ownership and trust Appreciation for simple, maintainable and well-structured code Nice to have Experience within financial services or fintech Experience integrating third-party APIs Experience refactoring legacy code and improving performance Exposure … unit testing Current tech stack C# .NET MVC Entity Framework (Code First) MS SQL HTML and CSS JavaScript Git Azure infrastructure Company culture You will be joining a collaborative and supportive environment where engineers are trusted to do their best work. Your voice will be heard, you will have ...

looking for a dynamic software engineer excited to help scale a fintech start-up. Here, you won't be bogged down by legacy code—you'll have the opportunity to build innovative, greenfield projects. You'll be responsible for developing high-quality applications across our platform, as well … ready to contribute to architectural decisions as we scale. Responsibilities Develop and test backend applications Analyse and maintain existing software Design highly scalable, testable code Identify and resolve programming bugs Contribute to architectural and technical decisions Collaborate with cross-functional teams to define and refine platform features Technical Skills ...

opportunity As a Senior C++ Developer, you won’t be maintaining legacy code or adding features at the edges. You have the option to work fully remote or partically remote with access to the clients offices. You’ll be designing and building core systems that will ultimately … highly capable, mission-driven technical team If you’re a senior C++ engineer who wants their next role to be meaningful, technically deep, and legacy-defining, this is worth a conversation. Edison Hill Search are operating and advertising as an Employment Agency for permanent positions and as an Employment ...

secure, event-driven systems. Embed testing-first practices (TDD/BDD, contract tests, Jest/RTL, Playwright/Cypress, xUnit/NUnit) to raise code quality. Implement modern CI/CD (GitHub Actions) and Infrastructure as Code (Terraform, CloudFormation, AWS CDK). Model secure-by-design principles; ensure … PoCs, and unblock complex problems across squads. Champion Always ship each cycle; partner with Product to balance scope, delivery, and quality. Drive modernisation: sunset legacy code, reduce tech debt, and improve performance, reliability, and observability. £110k-£120K + bonus + benefits. 100% remote ...

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 ...

confidently. You’ll design and deliver scalable, reliable architectures while balancing strategic quality with tactical speed, and knowing when to modernise vs build around legacy code. What you’ll bring 3–6 years’ software engineering experience, ideally CompSci background. Strong Python + C# experience. Exposure to either valuations, Risk ...

will shape architecture, tooling, and engineering culture, working closely with the CEO and Head of Technology. If you are looking for a large legacy codebase and rigid process, this role is not for you. If you want to ship, break things, fix them, and build something from ...

stack (.NET Framework/.NET Core, HTML/CSS/TypeScript/React, Python, SQL Server, Oracle). The role focuses on refactoring legacy systems to reduce technical debt, improve reliability and performance, and embed modern security patterns across the service estate. Tasks Design, build, and maintain server-side …/TypeScript, Python, and relational databases (SQL Server, Oracle); contribute to API and UI development, data access layers, and integration points. Refactor and modernise legacy codebases: modularisation, dependency updates, performance tuning, improved observability, and raising automated test coverage within CI/CD. Embed modern security patterns and controls across ...

C# and .NET 10+ (Minimal APIs, Blazor) Modern frontend: Svelte, Solid, HTMX, Astro, Tailwind CSS MSSQL Server AWS services (S3, CloudFront, Lambda, CloudWatch, WAF) Legacy codebase (VB.NET, .NET Framework 4.8.1, WebForms). We're migrating away and should be done within 12 months, but you'll need to work … it. We want someone who keeps up with the industry, gets excited by new tech, but also isn't afraid to dig into a legacy VB.NET codebase and figure out how to migrate it properly. If you spend your free time tinkering with side projects or reading about ...

Lead Elite Teams, Shape the Future of HR Tech What You'll Do: Design and develop high-performance, scalable PHP applications Modernize and maintain legacy PHP codebases with continuous refactoring approaches Deploy production code with confidence using terraform and GitHub actions Collaborate cross-functionally with engineers, UX designers … GitHub Copilot, Claude, ChatGPT) to accelerate development Exposure to Laravel and an understanding of modern PHP practices Comfortable working with both modern frameworks and legacy codebases Hands-on experience with AWS Solid understanding of software architecture and design patterns Understanding of secure coding practices Experience collaborating in cross-functional ...