101 to 125 of 191 Legacy Systems Jobs in England

play a key role in developing new features, building applications from the ground up, and supporting the migration of legacy systems to the latest version of .NET, including the use of containerisation. You'll also work closely with analysts and other developers to continuously improve product performance ...

modernization techniques. Application discovery and dependency mapping. Migration tooling (Application Migration Service, Database Migration Service, Migration Hub). Cutover planning and execution. Legacy system analysis and decommissioning. Risk mitigation and rollback strategies. AWS Transform. Preferred Qualifications Experience and technical expertise (design and implementation) in cloud computing technologies. Experience ...

build a brand-new, cloud-native, and fully independent fintech-style merchant acquiring platform. This isn't about maintaining legacy systems; it’s about building a target‐state platform from the ground up. As a Security Consultant/Analyst , you will be embedded within the CISO function ...

generation programme will transform how care is delivered and information is recorded, shared and accessed, enabling colleagues to spend less time working around systems and more time caring. The contract with Epic was signed in March, and we are expecting the new EHR to go live in April 2028. … operationally led, supported by the expertise of our digital teams. Our teams deliver safe, compassionate care every day, but we still rely on multiple systems, separate records and paper processes. This can mean patients repeating their story and colleagues spending valuable time duplicating work or managing gaps in information. ...

shaping system architecture, driving best practice, and developing robust, maintainable solutions that are relied upon by customers worldwide. You will work closely with electrical, systems, and test engineers to deliver integrated solutions, contributing across the full lifecycle from concept and design through to delivery and long term support. Backed … software architecture and design, ensuring scalable and maintainable solutions Contribute to microservice architecture and Azure based modernisation initiatives Maintain and evolve legacy systems while planning for their future development Collaborate with multidisciplinary engineering teams in an agile environment Participate in code reviews, sprint planning, and CI/ ...

influence over the product, technology and wider company direction. You won’t be joining a heavily layered corporate environment or maintaining legacy systems with little visibility over impact. The team is lean, collaborative and highly product-focused, with close working relationships across founders, product, engineering and operations. … There is genuine opportunity to: • Build products and systems from the ground up • Shape how the platform evolves as the business scales • Solve complex real-world operational problems • Influence product direction and decision-making • Operate with high ownership and autonomy • Work closely with founders and senior stakeholders • Have visible ...

configuration management using CloudFormation, Chef, and Puppet. Experience in large scale migration – data centre to data centre or data centre to cloud infrastructure. Legacy system analysis and decommissioning. Risk mitigation and rollback strategies. AWS Transform. Eligibility Be a UK national and able to obtain and maintain ...

containerised deployment (Docker/Kubernetes) Database architecture optimisation - latency, cost efficiency, SQL Server performance tuning Experience leading and mentoring technical teams Comfortable with legacy system migrations as well as greenfield builds Good to Have B2B or regulated fintech/trading platform background Familiarity with BizTalk, Logic Apps ...

Security Engineer to design, secure, and optimise Azure environments at scale. You’ll play a key role in cloud transformation, migrating legacy systems, and driving modern data, AI, and automation capabilities. What You’ll Be Doing Design and manage Azure infrastructure (compute, storage, networking, Microsoft Fabric) Lead ...

platforms Ensure the applications estate delivers measurable business value, driving efficiency, performance and an excellent user experience Drive the modernisation of legacy systems, championing scalable, cloud‐based and low‐code solutions Lead and develop application development, configuration and support teams to ensure high‐quality, reliable delivery Ensure ...

required. Previous publishing industry experience could be beneficial. Strong experience with qualitative and quantitative research Experience of working on legacy systems beneficial If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format. Disclaimer Notwithstanding any guidelines given ...

driven integration, messaging, batch, data synchronisation) appropriate to business needs. Develop and assure roadmaps for application modernisation, integration platform adoption, and decommissioning of Legacy systems. Ensure solution designs meet non-functional requirements including security, performance, availability, accessibility, and operational supportability. Work closely with Business, Enterprise, Data, and Security ...

Senior Technical Leader to drive the evolution of a trading platform within an investment bank. This role involves assessing current legacy systems and defining a clear technical roadmap for modernization. Candidates should have robust experience in investment banking and familiarity with Java and .NET systems. The position ...

that powers the entire engineering organisation. This is a genuinely high-impact role in a greenfield environment, where you’ll help shape the build systems, developer workflows, and CI infrastructure from the ground up. What you’ll be working on: • Designing and owning Bazel rules and extensions • Scaling … tooling • Working closely with teams across ML, Runtime, Simulation, Compilers, and Hardware Why this role stands out: • Greenfield environment with no legacy systems • Huge technical variety across software, ML, infrastructure, and hardware • High ownership and visibility across the business • Opportunity to define how engineering operates ...

that powers the entire engineering organisation. This is a genuinely high-impact role in a greenfield environment, where you’ll help shape the build systems, developer workflows, and CI infrastructure from the ground up. What you’ll be working on: • Designing and owning Bazel rules and extensions • Scaling … closely with teams across AI/ML, Runtime, Simulation, Compilers, and Hardware Why this role stands out: • Greenfield environment with no legacy systems • Huge technical variety across software, ML, infrastructure, and hardware • High ownership and visibility across the business • Opportunity to define how engineering operates ...

site 3 days a week) Salary: £80,000 - £90,000 (+ benefits) Skills: Python/C++/Legacy Modernisation/Complex Systems, MOD DV Clearance We are looking to recruit a MOD DV Cleared Senior Software Engineer for a leading technology consultancy delivering complex software engineering, maintenance … software Supporting architecture changes as requirements evolve Helping modernise codebases, tooling and engineering standards The role requires someone who is comfortable working across established systems, improving existing code and supporting other engineers through mentoring, review and technical leadership. Key Responsibilities Lead hands-on software maintenance, enhancement and upgrade work ...

supporting modern data platform, with a particular focus on Databricks, cloud-based data engineering, and leading the migration of legacy Oracle systems into scalable, cloud-native environments. The role supports the organisation's data strategy especially on Finance and Regulatory domain by ensuring high-quality, reliable pipelines … environment management. Ensure governance, performance optimisation. Legacy Oracle Migration Leadership Lead and coordinate the migration of data assets from Oracle database systems to the modern cloud data platform. Oversee source-to-target mapping, data model redesign, and automated migration frameworks. Define strategy for retiring legacy ...

background. The successful candidate must have strong experience in Microsoft Teams Voice administration and end-to-end UC migrations , particularly transitioning services from legacy voice platforms (PSTN, Avaya, etc.) to MS Teams . This is an on-site role across East London, Luton, and Bedfordshire , with frequent travel … certified handsets (Yealink or equivalent). Apply best practice for numbering, naming conventions, and governance. Telephony Migrations & Support Migrate services from legacy systems (Avaya, BT, MSD, PSTN, etc). Coordinate number PORTs with telco suppliers and ensure smooth cutovers. Test inbound/outbound routing, call flows ...

Engineer | London | Up To £140,000 + Equity We’re working with a well-backed early-stage AI company building enterprise-grade generative AI systems for complex, high-value workflows. The team is small, technical, and moving fast - they’re now looking for a Founding AI Engineer to help … shape both the product and engineering culture from the ground up. This is not a “maintain legacy systems” type role. You’ll be joining at the stage where architecture decisions still matter, product direction changes weekly, and exceptional engineers can have outsized impact. The focus ...

Systems Engineer £40,000 – £45,000 | Poole | 4 days onsite Some infrastructure roles are all about keeping legacy systems ticking over. This one is different. You’ll be joining a growing software business at a time of real change. Major infrastructure projects are underway. New environments ...

across core back-office platforms including HR, Finance, and ERP. You'll lead the design of scalable, integrated architectures that modernise legacy systems and enable efficient, data-driven operations. Acting as a subject matter expert, you'll define target architecture, support business cases, and ensure technology choices … party providers, and guide teams to deliver high-value outcomes. We're looking for a pragmatic, influential architect with strong experience across HRIS, finance systems, ERP platforms, and enterprise integration within complex environments. A key role driving the evolution of critical business systems. ...

Systems Developer Epicor BisTrack Scunthorpe (Hybrid working ) £60,000- £70,000+ benefits Were working with a well-established UK manufacturing and distribution business who are looking for a Systems Developer Data & Reporting with strong experience in Epicor BisTrack . This is a key role focused on maintaining, improving … modernising reporting across the business, supporting core operational areas including Sales, Logistics, Purchasing and Finance. Youll work across both legacy and evolving systems, ensuring day-to-day stability while helping to simplify and improve reporting structures over time. What youll be doing Developing, maintaining and optimising ...

Systems Developer – Epicor BisTrack Scunthorpe (Hybrid working ) £60,000- £70,000+ benefitsWe’re working with a well-established UK manufacturing and distribution business who are looking for a Systems Developer – Data & Reporting with strong experience in Epicor BisTrack .This is a key role focused on maintaining, improving … reporting across the business, supporting core operational areas including Sales, Logistics, Purchasing and Finance. You’ll work across both legacy and evolving systems, ensuring day-to-day stability while helping to simplify and improve reporting structures over time. What you’ll be doing Developing, maintaining and optimising ...

Developer with experience maintaining and enhancing critical business systems is sought by a 400m to logistics and distribution business based in Birmingham. This is a fantastic opportunity to join a stable, well-established organisation where your work will have direct impact on core logistics and distribution processes. … using RPG (RPG III/RPG IV/ILE RPG) - Working with green screen (5250) interfaces - Supporting and enhancing existing warehouse, distribution, and logistics systems - Troubleshooting and resolving system issues - Collaborating with internal teams to gather and refine requirements - Contributing to system improvements and modernisation initiatives where appropriate This ...

with human expertise to make complex services accessible, scalable and radically better for everyone. The industry has long been constrained by legacy systems and slow-moving processes. They’ve rebuilt the model from first principles, with a proprietary AI-native platform at its core—designed to amplify … scale-ups or own venture and having led 30+ Engineers) with strong technical depth, high standards, and a passion for building both great systems and great teams. You care about craft, not just output—and you know how to scale both people and platforms without compromising either. The Offer ...