25 of 25 Legacy Code Jobs in England

shell script -based batch processes. Support a high-volume OLTP environment across custom Oracle applications and Oracle E-Business Suite. Analyse and modernise legacy code , working within multi-disciplinary teams to understand requirements, propose technical options, and prototype solution approaches. Deliver robust, performant code and conduct performance … Experience developing and supporting batch workloads and high-volume OLTP systems within Oracle custom or Oracle Apps/EBS environments. Proven analytical capability, including: Legacy code analysis Working with multidisciplinary teams Providing technical input into solution design Rapid prototyping of solution approaches Ability to deliver highly performant, resilient ...

looking to further grow and diversify their SaaS solutions offering. In this role, you'll take ownership of both new and existing systems, maintaining legacy code where needed while leading the design and development of new solutions. You'll work closely with the Head of Software to align … 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, and lead development of a new software suite *Build, maintain, and improve Laravel applications, including APIs and third-party integrations *Make technical ...

looking to further grow and diversify their SaaS solutions offering. In this role, you'll take ownership of both new and existing systems, maintaining legacy code where needed while leading the design and development of new solutions. You'll work closely with the Head of Software to align … 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, and lead development of a new software suite *Build, maintain, and improve Laravel applications, including APIs and third-party integrations *Make technical ...

PROIV is a mature, enterprise-grade low-code platform used by internal and external customers to build scalable, data-driven business applications where reliability and long-term maintainability are critical. The Core Engineering team is a small, highly experienced group responsible for evolving the platforms foundational technology, including … C++-based PROIV Kernel and the Windows Developer IDE. This role focuses on developing and maintaining the core C/C++ codebase, modernising legacy code, and supporting build, test, and automation infrastructure. The team works collaboratively, follows modern engineering practices such as TDD, code reviews ...

PROIV is a mature, enterprise-grade low-code platform used by internal and external customers to build scalable, data-driven business applications where reliability and long-term maintainability are critical. The Core Engineering team is a small, highly experienced group responsible for evolving the platform’s foundational technology, including … based PROIV Kernel and the Windows Developer IDE. This role focuses on developing and maintaining the core C/C++ codebase, modernising legacy code, and supporting build, test, and automation infrastructure. The team works collaboratively, follows modern engineering practices such as TDD, code reviews, CI, and secure ...

with "agile sprints" where nothing actually ships? Here's something different. Medical device manufacturer needs an embedded firmware engineer who can work with real code, not just talk about it. The work: Life-support equipment. Oxygen systems, breathing devices - stuff that actually matters. You'll be debugging and improving … legacy C code on memory-constrained microcontrollers. RTOS or bare-metal. Adding new features - wireless comms, connectivity - without breaking what already works. This isn't "let's rewrite everything because the last guy didn't use our preferred design pattern." It's pragmatic engineering. Make it work, make ...

business functions. You'll be based at Scan HQ in Bolton, with the option of a hybrid working arrangement. Our engineering culture emphasises clean code, shared learning, and continuous improvement. We provide dedicated weekly time for personal development and run regular lunch & learn sessions so the team can share … that support our e-commerce platform and internal tools Collaborate with front-end developers to build full-stack features with ReactJS Write clean, testable code following SOLID principles and best practices Participate in code reviews, technical discussions, and mentoring of junior developers Support CI/CD processes ...

highly capable engineering function, working closely with other senior engineers, a dedicated frontend team, QAs, platform engineers and product specialists. This is not legacy work. Everything is being built fresh with modern tools, strong engineering principles and a clear product vision. The position is fully remote , with travel … Join? • Fully modern engineering environment • Greenfield build with real architectural influence • High autonomy and a collaborative, transparent culture • Interesting technical challenges at scale • No legacy code • Strong investment in engineering best practices Package • Up to £65,000 salary • 10 percent bonus • Fully remote • Travel to Exeter once ...

function in Southampton. This Senior Developer role would suit some looking to work in a Node.js, JavaScript & GCP environment! As Senior 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 … 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 ...

highly capable engineering function, working closely with other senior engineers, a dedicated frontend team, QAs, platform engineers and product specialists. This is not legacy work. Everything is being built fresh with modern tools, strong engineering principles and a clear product vision. Tech Stack • .NET 8 • Azure (Functions, cloud-native … Join? • Fully modern engineering environment • Greenfield build with real architectural influence • High autonomy and a collaborative, transparent culture • Interesting technical challenges at scale • No legacy code • Strong investment in engineering best practices Package • Up to £65,000 salary • 10 percent bonus • Fully remote • 27 days holiday + bank ...

seek and destroy any technical performance issues to the flagship software product for the company. Youll be able to roam about freely in the code to uncover and fix any significant performance, reliability, safety, and scalability problems for the foreseeable future. The flagship product is a legacy application … progression paths for you are numerous: its down to where you want to go. If youre strong with Azure architecture and infrastructure-as-code, youll be well placed to join the architecture team, or if youd prefer, you can be a tech lead for a new shiny tech team ...

authority to set standards across a regulated, high-impact product portfolio. Scope of the Role: As the Senior Embedded Software Engineer, you will stabilise legacy code and shape future architecture across mechatronic devices. The Senior Embedded Software Engineer partners with electronics, mechanical and manufacturing to deliver reliable control … impact, direct access to decision makers and the mandate to professionalise standards while keeping products moving. It is hands on mechatronics with purpose, balancing legacy stability and new platform development in a supportive, quality minded environment. How to Apply: Want to find out more? Click the apply button ...

impact on a rapidly scaling company. Backed by top-tier investors and industry leaders, with an ambitious growth trajectory. True greenfield opportunity with no legacy code or bureaucracy, offering freedom to innovate. What you will do: Work primarily on the backend, integrating with LLMs to build core product ...

very large data files. It’s not a real-time environment, but efficiency, memory usage, and clean design matter. You’ll write new C++ code, improve an existing codebase, and learn how commercial products are engineered properly. The team is small and technically strong. You won’t be thrown … technical contribution and depth , not job titles. Looking for: Strong fundamentals in C++ Interest in performance-focused systems Willingness to work with existing/legacy code Qt experience helpful but not essential Engineering, Physics, Maths or similar background preferred Why join: Real C++ engineering, not framework glue Exposure ...

integration with Dynamics 365 and Power BI. Own website performance, accessibility, and SEO optimisation. Oversee ongoing maintenance, updates, and documentation to avoid legacy code issues. Skills & Experience Essential Experience leading website redevelopment or CMS migration projects. Knowledge of CMS platforms such as Optimizely, Umbraco, or WordPress. Working knowledge ...

able to dive deep and rapidly iterate on ideas with your team despite some ambiguity. Relevant experience and skills: Building Android Applications Writing & Deleting code Build tools like Gradle, GitHub Actions, and Circle CI Continuous Integration patterns Finding and fixing bugs Asynchronous coding patterns Performance Analysis and Optimization Dealing … with Legacy code Unit & Integration Tests Open Source Working in a globally distributed team Self-starting and good at time management Integrating with bespoke lovingly hand-crafted Back End services from the days of yore. Designing solutions for open ended problems Bachelor's degree in Computer Science ...

capability across case management, knowledge, and support workflows. Support Marketing Cloud Engagement with journey management, audiences, and integrations. Contribute to projects aimed at replacing legacy code with modern declarative or out-of-the-box solutions. Provide day-to-day support, troubleshooting, and platform guidance to internal users. Deliver … troubleshooting (no coding involved). Confident using automation tools, especially Flow. Sound knowledge of Salesforce governance and best-practice configuration. Understanding of replacing legacy coded solutions with declarative or standard features. Good grasp of data processes such as migration, deduplication, and quality management. Experience with AppExchange tools (e.g., Conga ...

healthcare organisations worldwide in improving patient outcomes in conditions affecting brain health. What you’ll be doing: The successful candidate will: Enjoy writing code and contributing meaningfully and proactively to both greenfield and legacy codebases. Take ownership of various backend services and related infrastructure, contributing to API design … applications for feature development and to ensure the backend is aligned with the product goals. Provide technical leadership and mentorship to other developers through code reviews, sprint scoping discussions, and knowledge exchange. Coordinate with the test engineers to ensure reliability of software. Play a key role in improving software ...

pricing libraries for commodity products Building and supporting risk management tools and analytics platforms Taking models from prototype to production - writing robust, scalable Python code Collaborating with quantitative analysts to implement models and frameworks Interacting with some legacy codebases, ideally in another OOP language (C C#/Java … professional experience as a Quant Developer (or software developer with mathematical background) Strong programming skills in Python, with the ability to write production-grade code Experience with at least one other OOP language (C++, C#, or Java) Background in commodities trading, risk, or pricing Familiarity with numerical libraries, performance ...

pricing libraries for commodity products Building and supporting risk management tools and analytics platforms Taking models from prototype to production - writing robust, scalable Python code Collaborating with quantitative analysts to implement models and frameworks Interacting with some legacy codebases, ideally in another OOP language (C C#/Java … professional experience as a Quant Developer (or software developer with mathematical background) Strong programming skills in Python, with the ability to write production-grade code Experience with at least one other OOP language (C++, C#, or Java) Background in commodities trading, risk, or pricing Familiarity with numerical libraries, performance ...

scripting. Proven experience with batch processing and high-volume OLTP systems in Oracle custom or Oracle Apps EBS. Excellent analytical skills, including: Analysis of legacy codebases. Working within multi-disciplinary teams to shape requirements. Contributing to solution design and prototyping technical approaches. Ability to deliver robust, high-performance code ...

scripting. Proven experience with batch processing and high-volume OLTP systems in Oracle custom or Oracle Apps EBS. Excellent analytical skills, including: Analysis of legacy codebases. Working within multi-disciplinary teams to shape requirements. Contributing to solution design and prototyping technical approaches. Ability to deliver robust, high-performance code ...

application with SSO solutions , ensuring flexibility to connect with: OAuth/OpenID Connect SAML Okta (primary client requirement). Deliver clean, scalable, and secure code aligned with best practices. Collaborate with internal teams to ensure smooth integration and deployment. Essential Skills & Experience Expert-level React development (hooks, state management … experience with Okta integration. Knowledge of OAuth 2.0, OpenID Connect, and SAML . Experience building multi-tenant applications . Ability to refactor and modernize legacy codebases. Nice-to-Have Familiarity with other identity providers (Azure AD, Auth0, Ping Identity). Experience in secure coding practices and compliance frameworks. Strong ...

application with SSO solutions , ensuring flexibility to connect with: OAuth/OpenID Connect SAML Okta (primary client requirement). Deliver clean, scalable, and secure code aligned with best practices. Collaborate with internal teams to ensure smooth integration and deployment. Essential Skills & Experience Expert-level React development (hooks, state management … experience with Okta integration. Knowledge of OAuth 2.0, OpenID Connect, and SAML . Experience building multi-tenant applications . Ability to refactor and modernize legacy codebases. Nice-to-Have Familiarity with other identity providers (Azure AD, Auth0, Ping Identity). Experience in secure coding practices and compliance frameworks. Strong ...

optimisation of business-critical database solutions. The Role You’ll be responsible for developing and maintaining complex Oracle SQL and PL/SQL code, working closely with developers and stakeholders to ensure high-performance, scalable database solutions. This is a hands-on role for someone who genuinely enjoys writing … proper PL/SQL—not just babysitting legacy code. What You’ll Need 10+ years’ commercial experience working with Oracle PL/SQL Strong, clean, and efficient Oracle SQL & PL/SQL programming skills Experience developing complex stored procedures, packages, functions, and triggers A high standard of coding with ...