24 of 24 Legacy Code Jobs in the South East

proactive and experienced Senior Android Developer to work across a portfolio of successful apps in a fun, talented team. The apps are fully native, primarily developed in Kotlin, with legacy Java code being phased out. The technologies run directly on the phone with limited server interactions. As a key member of the team, you’ll have a strong … best practices. It is envisaged the role will evolve into a leadership position. Responsibilities: Build on exciting new technologies and integration with wearable devices Develop new features, improve existing code - work on ambitious projects ranging from low-level algorithms to high-level system design; plus the occasional development of a prototype app Utilise the latest Android SDKs and frameworks … to implement scalable, maintainable and testable architectures Conduct code reviews and champion high-quality code by leveraging unit tests, continuous integration, and code quality tools Essential Skills and experience: 5+ years of high-level Android development experience, with a wider software engineering background (8+ years in total) Excellent Kotlin skills and comfortable with other languages e.g. Java 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 More ❯

business for over 10 years and progressed through the ranks. You'll be developing new intelligent AI features onto a Microservices based architecture and helping them transition from a legacy codebase (PHP/ColdFusion) to NodeJS to help continue modernizing their tech stack. You'll be given excellent training and opportunities to progress your career with a clear pathway More ❯

tools, such as Salesforce, Segment, HubSpot, Stripe is beneficial Experience with SQL and data warehousing/pipelining tools such as BigQuery, Airflow, etc Proven experience in navigating and transforming legacy codebases, as well as leading greenfield projects More ❯

fintech firm is hiring a Java developer to support and evolve a bespoke trading platform. This is a hands-on role for someone who’s comfortable working across both legacy systems and newer service-based architecture. What you’ll be doing: Maintaining complex legacy systems Building new services and APIs Improving performance alongside senior developers Owning code … a small, focused team Key skills required: Java 8+ Spring or Spring Boot RESTful APIs SQL (MySQL or PostgreSQL) Git, Maven or Gradle Solid understanding of OOP and clean code principles Comfortable navigating and improving legacy codebases Bonus: Docker, CI/CD, microservices The environment: 3 days onsite, 2 remote Open-plan office Small team, permanent role 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 ❯

Why This Role? ? Team Leadership: Manage and mentor a growing team of backend/frontend engineers ? Modern Engineering Environment: Work on a cloud-native, AI-enabled platform with minimal legacy code ? Impactful Work: Influence product direction and contribute to scaling mission-critical systems ? Global Reach: Help deliver a platform used by large enterprise clients worldwide ? Career Growth: Step … needs into technical solutions Help define and execute development processes, sprint planning, and QA workflows Maintain a healthy balance between speed, quality, and technical debt Ensure best practices in code quality, documentation, and DevOps integration Your Profile 4+ years of experience in software engineering, with 1–2+ years in an engineering leadership or management role Strong technical background (you … don’t need to code daily, but should be comfortable leading technical discussions) Proven experience in a SaaS or product-driven environment (B2B a plus) Solid understanding of cloud infrastructure (AWS, GCP), CI/CD workflows, and agile development Interest or experience in AI/ML technologies is a plus Excellent communication skills and a team-first mentality What More ❯

in Southampton. This Node.js Developer role would suit someone coming from a .net/Azure looking to move into a Node.js, JavaScript & GCP environment! As Node.js Developer you will Code Development: Writing clear, quality, tested, and well-documented code. Deployment & Maintenance: Managing and supporting multiple services across different environments. Skill Development: Continuous learning and adaptability to new technologies. Backend … Focus with Frontend Exposure: Primary focus on backend development, with opportunities to learn frontend technologies. Legacy code is .net but all the cool new funky work will be JavaScript on Google Cloud Platform. As such, if you're a .net Developer local to Southampton and would like to transition to Node.js or already working with the stack, this … is what you could be working with: JavaScript/Node GraphQL GCP Mongo Docker & Compose CI/CD React , Tailwind, NextJS Kubernetes Writing good quality code is the focus of this role, working on a hybrid basis with 3 days a week in their new office on the outskirts of Southampton. The salary for this Node.js Developer role is More ❯

Southampton. This Node.js Developer role would suit someone coming from a .net/Azure looking to move into a Node.js, JavaScript & GCP environment! As Node.js Developer r you will Code Development: Writing clear, quality, tested, and well-documented code. Deployment & Maintenance: Managing and supporting multiple services across different environments. Skill Development: Continuous learning and adaptability to new technologies. Backend … Focus with Frontend Exposure: Primary focus on backend development, with opportunities to learn frontend technologies. Legacy code is .net but all the cool new funky work will be JavaScript on Google Cloud Platform. As such, if you're a .net Developer local to Southampton and would like to transition to Node.js or already working with the stack, this … is what you could be working with: JavaScript/Node GraphQL GCP Mongo Docker & Compose CI/CD React , Tailwind, NextJS Kubernetes Writing good quality code is the focus of this role, working on a hybrid basis with 3 days a week in their new office on the outskirts of Southampton. The salary for this Node.js Developer role is More ❯

is seeking a talented Software Engineer to join their technology development team. This role involves working on high-performance camera systems designed for the harshest conditions , helping to evolve legacy codebases and develop modern software solutions. Software Engineer Outside IR35 Contract ASAP Start Salary dependent on experience Farnborough | 2 days remote The Software Engineer will have the following responsibilities … Develop and maintain software applications in C/C++ for Windows platforms using Microsoft Visual Studio. Lead modernization efforts by migrating legacy software to up-to-date platforms and technologies. Design and implement user interfaces using modern UI/UX tools such as Shadcn. Collaborate with hardware and electronics teams to integrate software with embedded systems and device communications. … level proficiency in C and C++. Proficient in using Microsoft Visual Studio. Experience with modern UI/UX frameworks and tools, especially Shadcn. Proven capability in modernizing and upgrading legacy systems and platforms. Experience in web front-end development. More ❯

is seeking a talented Software Engineer to join their technology development team. This role involves working on high-performance camera systems designed for the harshest conditions , helping to evolve legacy codebases and develop modern software solutions. Software Engineer Outside IR35 Contract ASAP Start Salary dependent on experience Farnborough | 2 days remote The Software Engineer will have the following responsibilities … Develop and maintain software applications in C/C++ for Windows platforms using Microsoft Visual Studio. Lead modernization efforts by migrating legacy software to up-to-date platforms and technologies. Design and implement user interfaces using modern UI/UX tools such as Shadcn. Collaborate with hardware and electronics teams to integrate software with embedded systems and device communications. … level proficiency in C and C++. Proficient in using Microsoft Visual Studio. Experience with modern UI/UX frameworks and tools, especially Shadcn. Proven capability in modernizing and upgrading legacy systems and platforms. Experience in web front-end development. More ❯

maintaining documentation and records for future reference. Technical Design Author designs and blueprints for the engineering teams to implement and follow. Analyse, understand, and build documentation for the existing legacy system, including its functionalities, challenges, and limitations – sharing your documentation and plans with senior teammembers to plan for the future. Own the Technical Design Authority process, to ensure all … Proficient in at least one backend programming language (.NET preferred). Ability to work independently and manage multiple priorities effectively. Strong problem-solving and analytical skills. Experience working with legacy code modernization projects. Knowledge of CI/CD pipelines and DevOps practices. Experience with IaC tools like Terraform or Azure Resource Manager. Experience in containerization technologies like Docker More ❯

and with that comes fresh investment, a new leadership team, and a sharp focus on modernisation and cloud innovation. Why this is different: This isn’t about ripping up legacy code and starting over. It’s about carefully modernising a well loved product used by 350+ customers across Europe and the UK. The business is moving from traditional … hosted model, and they need a Delphi expert to help lead that journey. What makes it interesting: You’ll be the hands on Delphi champion, with support from a legacy savvy internal team and the freedom to guide modernisation best practices. The role is product-led, customer focused, role and you'll have the backing of new ownership and … leadership team genuinely committed to technical evolution. You’ll thrive here if you: -Live and breathe Delphi (newer versions/frameworks especially) -Have experience in cloud environments or transitioning legacy apps - Bonus: Java or C# knowledge for cross-functional input More info : -HQ in Guildford (1 day per fortnight minimum, ideally 2 per week) -Travel costs covered if you More ❯

Make high-impact architectural and engineering decisions aligned with the product vision and long-term roadmap. Greenfield Development: Design and build a secure, scalable authentication solution from scratch—no legacy code. End-to-End Ownership: Own the entire iOS stack, from architecture and tooling to development and deployment. High Autonomy: Full freedom to choose frameworks, libraries, and development practices. More ❯

Make high-impact architectural and engineering decisions aligned with the product vision and long-term roadmap. Greenfield Development: Design and build a secure, scalable authentication solution from scratch—no legacy code. End-to-End Ownership: Own the entire iOS stack, from architecture and tooling to development and deployment. High Autonomy: Full freedom to choose the frameworks, libraries, and development More ❯

Make high-impact architectural and engineering decisions aligned with the product vision and long-term roadmap. Greenfield Development: Design and build a secure, scalable authentication solution from scratch—no legacy code. End-to-End Ownership: Own the entire iOS stack, from architecture and tooling to development and deployment. High Autonomy: Full freedom to choose the frameworks, libraries, and development More ❯

Make high-impact architectural and engineering decisions aligned with the product vision and long-term roadmap. Greenfield Development: Design and build a secure, scalable authentication solution from scratch—no legacy code. End-to-End Ownership: Own the entire iOS stack, from architecture and tooling to development and deployment. High Autonomy: Full freedom to choose the frameworks, libraries, and development More ❯

Make high-impact architectural and engineering decisions aligned with the product vision and long-term roadmap. Greenfield Development: Design and build a secure, scalable authentication solution from scratch—no legacy code. End-to-End Ownership: Own the entire iOS stack, from architecture and tooling to development and deployment. High Autonomy: Full freedom to choose the frameworks, libraries, and development More ❯

Make high-impact architectural and engineering decisions aligned with the product vision and long-term roadmap. Greenfield Development: Design and build a secure, scalable authentication solution from scratch—no legacy code. End-to-End Ownership: Own the entire iOS stack, from architecture and tooling to development and deployment. High Autonomy: Full freedom to choose the frameworks, libraries, and development More ❯

Make high-impact architectural and engineering decisions aligned with the product vision and long-term roadmap. Greenfield Development: Design and build a secure, scalable authentication solution from scratch—no legacy code. End-to-End Ownership: Own the entire iOS stack, from architecture and tooling to development and deployment. High Autonomy: Full freedom to choose the frameworks, libraries, and development More ❯

Make high-impact architectural and engineering decisions aligned with the product vision and long-term roadmap. Greenfield Development: Design and build a secure, scalable authentication solution from scratch—no legacy code. End-to-End Ownership: Own the entire iOS stack, from architecture and tooling to development and deployment. High Autonomy: Full freedom to choose the frameworks, libraries, and development 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 ❯