151 to 175 of 481 Legacy Systems Jobs in the UK

agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience Strong Node.js and JavaScript development experience Experience working on greenfield or migration projects Good understanding of API development and system integration Exposure to More ❯

agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience Strong Node.js and JavaScript development experience Experience working on greenfield or migration projects Good understanding of API development and system integration Exposure to More ❯

agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience Strong Node.js and JavaScript development experience Experience working on greenfield or migration projects Good understanding of API development and system integration Exposure to More ❯

agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience Strong Node.js and JavaScript development experience Experience working on greenfield or migration projects Good understanding of API development and system integration Exposure to More ❯

agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience Strong Node.js and JavaScript development experience Experience working on greenfield or migration projects Good understanding of API development and system integration Exposure to More ❯

agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience Strong Node.js and JavaScript development experience Experience working on greenfield or migration projects Good understanding of API development and system integration Exposure to More ❯

agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience Strong Node.js and JavaScript development experience Experience working on greenfield or migration projects Good understanding of API development and system integration Exposure to More ❯

agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience Strong Node.js and JavaScript development experience Experience working on greenfield or migration projects Good understanding of API development and system integration Exposure to More ❯

agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience Strong Node.js and JavaScript development experience Experience working on greenfield or migration projects Good understanding of API development and system integration Exposure to More ❯

agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience Strong Node.js and JavaScript development experience Experience working on greenfield or migration projects Good understanding of API development and system integration Exposure to More ❯

agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience Strong Node.js and JavaScript development experience Experience working on greenfield or migration projects Good understanding of API development and system integration Exposure to More ❯

agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience Strong Node.js and JavaScript development experience Experience working on greenfield or migration projects Good understanding of API development and system integration Exposure to More ❯

agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience Strong Node.js and JavaScript development experience Experience working on greenfield or migration projects Good understanding of API development and system integration Exposure to More ❯

looking to recruit an additional 1-2 C#.NET backend developers to start Jan 2026. The role is not full-stack or front-end, but working with legacy systems and financial software. Ideally, you will have 3 years or more of solid C#.NET experience and be very comfortable working 2 days a week in the office. Any exposure More ❯

manipulating data from Salesforce and NetSuite Proficient in SQL and data warehouse development Solid experience with Power BI, including Power Query and DAX Experience working with legacy systems and data migration projects Strong analytical and problem-solving skills HOW TO APPLY: Please register your interest by sending your CV to Mojola Coker via the apply link on More ❯

You'll work as part of an Agile Scrum team made up of Java Engineers, Front-End Developers, and Quality Engineers, contributing to the transformation of legacy systems into scalable, cloud-based services. Location: Telford (2 days on-site per week) Contract: Inside IR35 Sector: Central Government/Public Sector Duration: Ongoing contract Key Responsibilities Develop, enhance More ❯

discussions and contribute ideas to improve engineering practices and tooling Write clean, maintainable, and well-documented code that aligns with team standards Help maintain and improve legacy systems while contributing to the development of new services and features Support the team in delivering high-quality software through testing, documentation, and collaboration Collaborate with the Lead Software Engineer More ❯

methodologies and quality gates.• Lead data lifecycle management initiatives ensuring accuracy and traceability.Architect secure and scalable data integration solutions:• Design end-to-end data flows between legacy systems, S/4HANA, and cloud platforms (Azure, AWS, GCP).• Oversee data migration strategies ensuring quality, validation, and audit readiness.• Collaborate with SAP BTP and integration teams to optimise More ❯

interest in data and systems. Excellent presentation skills including the ability to use MS Office products to create engaging reporting and presentations Experience in digital transformation – legacy systems to modern architecture patterns (e.g. microservices) Experience of using Microsoft Azure DevOps to aid with the documentation and tracking of requirements and software specifications. An understanding of AI tools More ❯

interest in data and systems. Excellent presentation skills including the ability to use MS Office products to create engaging reporting and presentations Experience in digital transformation – legacy systems to modern architecture patterns (e.g. microservices) Experience of using Microsoft Azure DevOps to aid with the documentation and tracking of requirements and software specifications. An understanding of AI tools More ❯

continued deployment and optimisation of Salesforce Commerce Cloud, steering the brand’s global digital and eCommerce capability. Drive seamless integration between retail, eCommerce, POS, CRM, PIM, DAM and OMS systems to enable real-time inventory visibility, fulfilment accuracy, and high-grade customer personalisation. Ensure resilient, scalable cloud and network infrastructure across stores, distribution, and head office. Strengthen cybersecurity, data … of D365 ERP and Salesforce Commerce Cloud implementations — this is essential. Strong architectural understanding of Azure, API integrations, and modern retail platforms. Proven ability to modernise legacy systems, implement new tools at scale, and create a unified data and systems environment. Commercially sharp, financially disciplined, and confident influencing at board level. A leader who is both More ❯

continued deployment and optimisation of Salesforce Commerce Cloud, steering the brand’s global digital and eCommerce capability. Drive seamless integration between retail, eCommerce, POS, CRM, PIM, DAM and OMS systems to enable real-time inventory visibility, fulfilment accuracy, and high-grade customer personalisation. Ensure resilient, scalable cloud and network infrastructure across stores, distribution, and head office. Strengthen cybersecurity, data … of D365 ERP and Salesforce Commerce Cloud implementations — this is essential. Strong architectural understanding of Azure, API integrations, and modern retail platforms. Proven ability to modernise legacy systems, implement new tools at scale, and create a unified data and systems environment. Commercially sharp, financially disciplined, and confident influencing at board level. A leader who is both More ❯

metrics and are scalable Helping to shape, evolve and document the architecture that underpins the existing platforms and services and lead their on-going transition from legacy systems to cloud based architectures. Interacting with project roles as required, to gain an understanding of the complex business environment, technical context, end client requirements and organisational strategic direction. Advising … VMware NSX offerings. Other SDN offerings would be beneficial. Deployment automation technologies. The ability to code, especially Infrastructure as code. A track record in the design and application of systems, leveraging automation technologies. Design of large, complex systems including practical experimentation and development skills Has both technical breadth and depth and great client engagement skills Deep knowledge in … seeker to purchase IT or other equipment on our behalf. More information on employment scams is available . DXC Technology (NYSE: DXC) helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability across public, private and hybrid clouds. The world's largest companies and public sector organizations trust More ❯

DevOps, CI/CD, TDD/BDD, and cloud-native development practices. Technology & Operations Work closely with the Head of Architecture and Platform teams to modernise legacy systems and reduce technical debt. Promote scalability, resilience, and observability across our engineering landscape. Own SLAs, operational metrics, and runbooks for engineering-owned systems and services. Cross-functional Collaboration More ❯

investment manager that’s serious about modern engineering and data-driven investing. Our client is looking for an experienced Senior/Principal Python Developer to help build high-performance systems that power investment decisions, analytics, and portfolio operations. The Opportunity Be part of a cross-functional engineering team working closely with quants, data scientists and portfolio managers to design … quant teams. Lead on performance tuning, code quality, testing, and CI/CD practices. Improve latency, reliability and observability of data-driven processes. Contribute to modernising legacy systems towards cloud-native, distributed architectures. What We’re Looking For Strong expertise in Python (typically 6+ years) building production-grade software in financial services, trading or data-intensive domains. … data structures, algorithms and software design . Experience with cloud platforms ( AWS/Azure ), distributed data platforms or data warehouses. Familiarity with quantitative analysis, risk models or front-office systems is advantageous. Proven track record of leading projects or mentoring engineers. A pragmatic, test-first mindset and great collaboration skills. Why Join Work for a respected global investment firm More ❯