16 of 16 Legacy Code Jobs in the UK

designs, and the development team, who deliver them. You will turn HLDs into well-documented, implementable designs (Low-Level Design) and make sure the code that results is consistent, secure and maintainable. About Bestway Bestway Group is a diversified multinational family owned business with annualised turnover in excess … communities through its operations across the UK, Pakistan and the Middle East Responsibilities: Application & low-level design: Own component-level (C4 Level 3) and code-level (C4 Level 4) design and LLDs for our applications. Translate Solution Architects HLDs into clear implementation designs, and make sure the team understands ...

Mobile applications that serve tens of millions of cardholders worldwide demand a relentless focus on user experience and code quality. As an iOS Engineer, working in a hybrid mode in London, you will sit at the intersection of scale and creativity, where ambiguity is part of the challenge … work matters because every feature you help shape reaches users around the world. Responsibilities Build and maintain iOS applications and write and delete code as needed Use build tools such as Tuist, xcodebuild, GitHub Actions and Circle CI and apply continuous integration patterns Find and fix bugs and apply ...

Java, to successfully accomplish development tasks. Conduct thorough testing at the unit, functional, and integration levels to ensure software reliability and performance. Handle both legacy code and new development projects. Promote collaboration and synergy among traders, researchers, and software engineers. Qualifications: Experience in designing, developing, and supporting mission … Java, to successfully accomplish development tasks. Conduct thorough testing at the unit, functional, and integration levels to ensure software reliability and performance. Handle both legacy code and new development projects. Promote collaboration and synergy among traders, researchers, and software engineers. Qualifications: Experience in designing, developing, and supporting mission ...

closely with chemistry subject-matter experts and implement their algorithms using sound design patterns and modern C++. You'll be one of the main code reviewers, protect the quality and consistency of the architecture, and mentor junior developers as they continue to grow. Key responsibilities Maintain and modernise … legacy C++ codebase, migrating it gradually to modern C++ Implement new cheminformatics algorithms specified by the SMEs Review algorithm specifications for feasibility and clarity before implementation Act as a primary code reviewer, protecting the team's architectural consistency and code quality Own the test strategy for your ...

effective technical solutions Taking ownership of features from concept through to implementation Mentoring other developers and helping promote best coding practices Refactoring and modernising legacy code Helping transition existing infrastructure from IIS to Docker Contributing to the ongoing improvement of development processes, architecture and engineering standards Tech Stack ...

workflows, including model selection, prompt and harness engineering, tool integration and reusable skills. Support the adoption of AI across the SDLC, including test generation, code review, documentation, legacy code understanding and modernisation. Run structured proofs of value with clear hypotheses, baselines, success criteria and evidence-based outcomes. … integrating agents with tools and services. Strong prompt engineering and harness engineering experience. Experience with AI coding and agent tooling such as Claude Code, GitHub Copilot, Codex, Kiro or MCP. Knowledge of applying AI across the software development lifecycle. Experience defining engineering standards, guardrails or practices adopted across multiple ...

other colleagues at a time. In addition, you'll take an active role in unlocking the potential of junior colleagues: encouraging idiomatic code, demonstrating engineering rigour, and sharing hard-won knowledge with your peers. Youll also help drive our engineering processes to maintain code quality while balancing realistic … timescales and client requirements. Desirable Skills Professional experience in the design and implementation of complex projects, ideally both clean-slate projects and updates to legacy code bases. Comfortable with platform APIs, development environments and native debugging approaches. Experience leading a team of developers through a complete project lifecycle ...

slowing the pace of new development. Demonstrable hands-on experience applying AI to software engineering at team scale with measurable results (e.g. AI-driven code modernisation, test generation for legacy code or agentic development workflows) and an informed point of view on how AI will change both ...

cloud application for internal fleet monitoring, and a customer-facing fleet administration platform. Two existing mobile apps are to be consolidated, while a legacy desktop product will be maintained only as needed until its support commitments end. What you will be doing Lead, coach and develop the software team … stakeholders. Take ownership of product outcomes, working with Product Management, customers and colleagues to define requirements, prioritise the backlog and shape the roadmap. Lead legacy modernisation and application consolidation, managing older systems through to the end of their support life. Design, build and maintain software across C#/.NET ...

systems with a constant focus on testing, reliability, scalability, and maintainability. Designing, modeling, and programming in a variety of languages and technologies. Working on legacy code as well as green field development. Initiative driving projects to completion. Learning and promoting new technologies with a focus on best practices. ...

Hands on experience with Kotlin for server side, or/and React and Typescript for the frontend. Proven track record of refactoring and modernising legacy codebases and architectures, improving performance and maintainability while minimising risk and customer impact. Track record of integrating and optimizing AI/ML-enabled features ...

small- to medium-sized applications that business people use in their day-to-day work. What you will do in this rolePrimarily work on legacy code, and sometimes work on green-field development. Lead small projects to completion. Hands on with business users, sometimes collaborating with them … solutions. Strong verbal and written communication skills. Fluency in one or both of Python and C#.Ability to work with AI coding assistants (e.g. Claude Code) to accelerate software development. Bachelor's degree in Computer Science or Software Engineering (or equivalent).6+ years of Software Engineering experience. For more information ...

managing large numeric simulations. You'll collaborate closely with other QEC teams at Riverlane, including those working on logical operations, decoding and QEC code design across different qubit platforms. What you will do Develop and improve simulation tools for fault-tolerant quantum computing and quantum error correction. Research … Clifford simulation. Engage in academic research activities, including reading and reviewing literature, participating in journal clubs, writing papers, and presenting work at conferences. Write code to test scientific ideas and contribute to software-focused research outputs and products. Lead or contribute to projects involving small, cross-disciplinary teams. Collaborate ...

join our growing team working on our NetSuite CRM system. Principal Duties: 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 ...

join our growing team working on our NetSuite CRM system. Principal Duties: 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 ...

hiring Senior Software Engineers to work on business-critical products across our portfolio. You'll be embedded in a product team, working across legacy and greenfield environments, translating ambiguous business problems into production-grade solutions. We care about engineering judgement - the ability to decompose hard problems, design systems that … thinking, not your toolset. You'll work on systems with real users, real constraints, and real consequences. Some of that work will be modernising legacy codebases that have served public services for years. Some will be building new capabilities from scratch. All of it requires someone who thinks ...