1 to 25 of 244 Legacy Systems Jobs in the UK

plus 28.97% employer pension contributions, hybrid working, flexible hours, and great work-life balance. Do you want to lead on the modernisation of systems that deliver billions of pounds in payments every week to citizens who rely on our support? As a Lead Technical Architect in DWP Payments … biggest payers in the UK, across benefits and pensions and we're modernising our payments estate. We are moving away from legacy systems and designing future-proofed, event-driven, API-led architectures that are resilient, scalable and secure. You'll guide the technical strategy for major transformation ...

plus 28.97% employer pension contributions, hybrid working, flexible hours, and great work-life balance. Do you want to lead on the modernisation of systems that deliver billions of pounds in payments every week to citizens who rely on our support? As a Lead Technical Architect in DWP Payments … biggest payers in the UK, across benefits and pensions and we're modernising our payments estate. We are moving away from legacy systems and designing future-proofed, event-driven, API-led architectures that are resilient, scalable and secure. You'll guide the technical strategy for major transformation ...

plus 28.97% employer pension contributions, hybrid working, flexible hours, and great work-life balance. Do you want to lead on the modernisation of systems that deliver billions of pounds in payments every week to citizens who rely on our support? As a Lead Technical Architect in DWP Payments … biggest payers in the UK, across benefits and pensions and we're modernising our payments estate. We are moving away from legacy systems and designing future-proofed, event-driven, API-led architectures that are resilient, scalable and secure. You'll guide the technical strategy for major transformation ...

plus 28.97% employer pension contributions, hybrid working, flexible hours, and great work-life balance. Do you want to lead on the modernisation of systems that deliver billions of pounds in payments every week to citizens who rely on our support? As a Lead Technical Architect in DWP Payments … biggest payers in the UK, across benefits and pensions and we're modernising our payments estate. We are moving away from legacy systems and designing future-proofed, event-driven, API-led architectures that are resilient, scalable and secure. You'll guide the technical strategy for major transformation ...

Systems Accountant - Process & Systems Transformation Day Rate: £500 - 700 DOE (umbrella) Contract Length: 12 months Location: Harlow (Hybrid - minimum 3 days onsite) Clearance: SC A leading organisation within the defence sector is seeking an experienced Systems Accountant to support a major finance systems transformation programme. This … high-profile change initiative. You'll join a dedicated Process & Transformation team, supporting data migration, ensuring system integrity, and strengthening the organisation's financial systems landscape. This role offers the chance to influence critical systems change and collaborate across multiple business areas. Key Responsibilities Support data migration from ...

business needs require. Core areas of depth may include one or more of: Web/Front-end engineering Java/AWS backend and distributed systems React Native Android (Kotlin) iOS (Swift) Successful candidates demonstrate deep expertise in at least one of these areas while maintaining practical experience and willingness … across others. This role suits engineers who are highly autonomous, delivery-focused, and capable of owning technical design and execution for complex features and systems, while contributing to team growth and technical direction. What you’ll do: Engineering delivery & technical ownership Design, build, and deliver high-quality software across ...

Business Systems Analyst Role: Business Systems Analyst Specialism(s): Agile Working Model (AWM), User Stories, Backlogs, Project Lifecycle, Prince2/PMP, Legacy Systems, Financial Services Type: Contract, Daily Rate IR35 Determination: Inside IR35 Pay Rate: £350 - £425 per day Start: ASAP/Urgent Location: Farnborough … days on-site per week) Business Systems Analyst CPS Group UK are delighted to be working with a leading Financial Services organisation to appoint a seasoned Business Systems Analyst to join them on a 3-monthly rolling contract basis. The role is based at the client ...

modernisation initiatives. You will collaborate closely with internal teams to deliver new features, improve performance, and support the transition of legacy systems into more scalable, maintainable solutions.This is a hands-on role suited to someone who enjoys variety: maintaining what works today, and shaping the architecture … tomorrow. Key Responsibilities Develop, maintain, and enhance PHP-based applications, including a core legacy product. Support the evolution of legacy systems by modernising codebases, improving structure, and raising software quality. Work across the full development lifecycle: requirements, build, testing, deployment, and ongoing support. Collaborate with ...

modernisation initiatives. You will collaborate closely with internal teams to deliver new features, improve performance, and support the transition of legacy systems into more scalable, maintainable solutions.This is a hands-on role suited to someone who enjoys variety: maintaining what works today, and shaping the architecture … tomorrow. Key Responsibilities Develop, maintain, and enhance PHP-based applications, including a core legacy product. Support the evolution of legacy systems by modernising codebases, improving structure, and raising software quality. Work across the full development lifecycle: requirements, build, testing, deployment, and ongoing support. Collaborate with ...

great if you also have: Experience with DL1/IMS technology Knowledge of Easytrieve Plus Knowledge of Assembler Experience working on legacy systems Experience of ensuring stability of legacy systems during modernisation Understanding of Retail and Supply Chain systems Experience managing small teams ...

leading Banking, Financial Services & Insurance (BFSI) client in Central London. This is a hands-on, high-impact role focused on modernizing legacy systems, enabling cloud-native architectures, and implementing AI-driven solutions across enterprise technology stacks. Key Responsibilities: Lead large-scale application and database modernization programmes … BFSI clients Design solutions across mainframe, midrange, and distributed systems Leverage AI and cloud tools for automated code analysis, refactoring, and modernization Collaborate with senior stakeholders, technology, and cross-functional teams Architect scalable, resilient solutions using microservices, APIs, and event-driven patterns Candidate Requirements: Deep hands-on mainframe expertise ...

hub. This role is designed for a technical visionary capable of navigating large-scale enterprise environments while leading the transition from legacy systems to cloud-native, microservices-based architectures. As a Lead, you will bridge the gap between complex requirements and technical execution, taking direct responsibility … offshore development team of 20+ members, ensuring delivery excellence and code quality. Cloud Transformation: Lead the transition of hosting platforms from legacy systems to Kubernetes-based environments on GCP or AWS. Full-Stack Delivery: Architect and maintain robust, scalable applications using Java 17+ and Angular . Data ...

across functional workstreams, ensuring data meets architectural, compliance, and governance standards. Key Responsibilities Extract and prepare HR and employee data from legacy systems for migration into Workday Transform, cleanse, and validate datasets to meet agreed standards and Workday requirements Conduct data gap analysis and support remediation … delivery Experience/Knowledge needed: Experience of working with the HR function Excellent abilities when it comes to extracting data from legacy systems, cleansing data, validating data, transforming data and preparing to hand over to the IMPL Data lead. Demonstrable HR data architecture experience Identify and analyse ...

Outside IR35 Were looking for a hands-on Python Developer to join a high-performing team delivering modern applications and migrating legacy systems into scalable, web-based solutions. This is a fast-paced, delivery-focused role where youll work alongside experienced engineers on real-world, high-impact … Linux environments A proactive, problem-solving mindset Opportunity to gain: Front-end exposure (React/Vue), testing (pytest), or experience modernising legacy systems ...

optimisation of data pipelines. Data Engineer - What will you be doing? * Collaborating with team members to migrate existing data pipelines from legacy systems to the new Databricks platform.* Supporting the ongoing build-out of the Databricks environment by developing robust, scalable data solutions that meet current … optimising ETL/ELT pipelines using modern tools and technologies is essential for success.* Familiarity with managing dual environments involving both legacy systems (such as on-premise databases) and contemporary cloud solutions is beneficial.* Strong problem-solving skills combined with an analytical mindset enable you to address ...

Eligible We are seeking an experienced Supply Chain Lead to drive the end-to-end transition of Procurement processes from legacy systems into Oracle. This is a key contract role supporting a major ERP transformation programme, requiring strong functional expertise and hands-on delivery capability. The Role … solution design, workflow development, process implementation, stakeholder engagement, and training delivery. Key Responsibilities Lead the transition of Procurement activities from legacy systems to Oracle Support all Procurement-related elements of the wider ERP migration programme Design, own and maintain the Procurement data strategy, ensuring data integrity throughout ...

requirements. Support relevant implementation workstreams aligned to the BAU deliverables, with activities such as: Manage data migration, cleansing, and validation from legacy systems to NetSuite. Design and test workflows for Accounts Payable, Accounts Receivable, Project Accounting, General Ledger, and Fixed Assets. Develop customized reports and dashboards within … custom report building, with NetSuite being a plus. Data Migration & Integrity: Proficiency in data cleansing, mapping, and migrating large datasets from legacy systems into NetSuite using CSV imports or integration tools. Advanced Excel: Ability to use, Pivot Tables, and complex formulas to reconcile data between ...

Head of Systems/Leeds/£75,000 - £85,000 We're working with a growing organisation currently undergoing a three-company merger, who are looking to appoint a Head of Systems to lead the strategy and delivery of their business systems landscape. This is a senior … Director and the CFO, you'll act as a key driver across a multi-year programme to consolidate and modernise the company's systems architecture. The role is focused on business systems (ERP, CRM, BI and data) rather than desktop IT support, and will play a critical role ...

build, and optimise enterprise-scale data solutions, focusing on Databricks and cloud-based engineering. You’ll lead the migration of legacy Oracle systems to a scalable, cloud-native environment, ensuring high-quality pipelines and models that support analytics, regulatory reporting, and business decision-making. Key Responsibilities Lead … Python (or other programming languages). Proven experience leading data engineering teams and delivering enterprise-scale solutions. Experience migrating data from legacy systems (Oracle or similar) to cloud environments. Strong analytical, problem-solving, and communication skills with the ability to explain technical concepts to non-technical stakeholders. ...

clearly communicated, understood, and consistently applied Design and Innovation Define and maintain architectural patterns across backend services, APIs, data platforms, and front end systems Design scalable, resilient systems for analytics, workflow orchestration, and intelligence features Guide decomposition of legacy systems into well defined services … domains Evaluate technologies and data stores, favoring open standards and long term maintainability Architect distributed systems with focus on reliability, fault tolerance, and scalability Standards & Governance Establish API design standards ensuring consistency, discoverability, and ease of integration Define front end standards prioritizing web platform capabilities, progressive enhancement, and accessibility ...

Infrastructure Systems Manager Hours: Full-time (35 hours per week) Contract: 12-month fixed-term Location: Central London office Working pattern: Fully remote with occasional travel to London Salary: £35,825 , rising to £38,065 after six months’ serviceWe’re recruiting an Infrastructure Systems Manager … profit organisation undergoing a major shift from legacy on-premise systems to a modern, cloud-first environment. This role is ideal for a strong IT Officer or 3rd line engineer with hands-on project experience who is ready to step up . You’ll lead technical work ...

Software Developer with experience in VB.NET and/or C#.NET to join our development team. You will work on internal and client-facing business systems, contributing to both ongoing product development and new feature delivery. About the role This role suits a developer with solid foundations in .NET … comfortable working across backend logic, database interaction, and supporting user-facing applications. You will be involved in maintaining existing systems while also helping modernise parts of the platform over time. Key Responsibilities: Develop and maintain applications using VB.NET and C#.NET Design, write, and optimise SQL Server queries and stored ...

hands on engineering role focused on building reliable and scalable data solutions. The successful candidate will work on modernising legacy systems, developing robust data pipelines, and helping the organisation turn complex and unstructured datasets into meaningful insights that support operational efficiency and real-time decision-making. … skills and the ability to translate technical solutions into business outcomes will be important. Responsibilities Lead the migration of legacy databases and systems to modern cloud or on-premise data platforms Design, build and maintain ETL pipelines to ingest and process large datasets from multiple sources Develop ...

enterprise ecosystems like APIs (REST/SOAP),MQ Series, event-driven integrations, batch interfaces, file-based integrations, Integrate with Digital platforms, Core banking systems, CRM/ERP systems, Payment gateways, define API enablement strategy for legacy systems and Implement middleware and integration patterns. Application Architecture …/COBOL monoliths, Green-screen applications → Web/UI platforms, Establish coding and architectural standards. Domain Expertise Responsibilities Leasing: Contract lifecycle management, Asset finance systems, Billing & payment schedules, Residual value management, Regulatory leasing compliance. Banking: Core banking operations, mortgage & deposits processing, payments & settlements, risk & compliance workflows, regulatory reporting frameworks. ...

Business Systems Manager Brand: Flow Student Reports to: Head of Operations Location: Manchester Head Office (National travel required) Salary: £55,000 - £65,000 + performance-linked bonus Purpose of the Role This is a high-impact leadership role at the heart of Flow Student's digital and operational infrastructure. … Business Systems Manager will take full accountability of the strategic oversight, optimize the end-to-end delivery of all core business systems across the portfolio, ensuring they are scalable, integrated and aligned to the wider growth strategy. From system design and configuration through to mobilisation, integration, go-live ...