1 to 25 of 324 Legacy Systems Jobs in the UK

work off between silos. In this role, you will execute and evolve an incremental modernization strategy (e.g., strangler fig), safely transitioning legacy systems into scalable services while maintaining reliability and system continuity. Responsibilities Execute and evolve an incremental modernization strategy, safely transitioning legacy systems into well‐bounded services while maintaining reliability and continuity Decompose monolithic systems incrementally using patterns such as strangler fig Manage coexistence between legacy and modern systems during transition Design clear service boundaries, contracts, and data ownership models Ensure backward compatibility and safe evolution of APIs ...

talk about the role and who we’re looking for... A bit about the role Reporting to the Head of Finance Business Systems, responsible for the ongoing development of principle Finance Systems applications across the Finance department and operating as part of the wider Financial Systems team … technical architecture for financial solutions (SAP ECC (on HANA), S/4HANA, FICO, Central Finance modules) and integrating SAP with non-SAP systems, banks, and tax engines. These solutions will align business processes like Procure to Pay (P2P) Record-to-Report (R2R) and Order-to-Cash (O2C) with ...

Role Title: Systems Engineer Contract: 9 Months Rate: up to £825 per day umbrella (inside IR35) Location: Remote but some expectation to travel to client site in Whiteley and Bath office/BPSS required Role Summary As a Senior Systems Engineer within you will work with our customer … customer focussed role, so you will need to explore and understand our customer's domain, needs and programme, including legacy systems, systems context and target value You will be a proactive senior systems engineering lead with responsibility for understanding and specifying aspects of the problem ...

Legacy Systems Discovery & Migration Readiness Contract/Freelance (Initial 5–15 day engagement) Hybrid/On-site required initially (North West England) MadeByAI is seeking an experienced technical contractor to support the discovery, interrogation and documentation of a complex legacy business systems environment … part of a wider AI and systems transformation programme. This is not a typical software development role. The environment We are specifically looking for someone who is comfortable working with mature, business-critical systems that have evolved over decades. The environment includes: Microsoft Access applications VBA/Visual ...

summary A fantastic opportunity to transform, shape and define the Interfacing/Integration solutions for the Trusts digital systems, responsible for forging and evolving key clinical systems and development that allows our clinical and non-clinical staff improved effectiveness in their role to the ultimate benefits … chance to contribute to a vital national service that everyone will use at some stage in their life. Working to the Head of Digital Systems but in partnership with the Trusts Development Manager, Digital Services management team and Technical Services management team to provide technical direction, influence our overall ...

MadeByAI is seeking an experienced technical contractor to support the discovery and documentation of a complex legacy systems environment in the North West of England. This position requires strong analytical skills and experience with legacy systems, specifically those reliant on Microsoft Access and SQL. … role focuses on understanding existing systems, identifying risks, and preparing for future migration. The contractor should thrive in challenging environments, especially with business-critical systems. #J-18808-Ljbffr ...

Systems Analyst Location: Fully Remote (UK) Salary: Up to £50,000 Job Type: Permanent We're looking for a Systems Analyst to join our Technology team and take ownership of several business-critical applications. This is a hands-on role where you'll provide 2nd line application support … maintain and improve business systems, write SQL queries and reports, and help support the organisation as legacy systems are replaced with modern SaaS platforms. You'll work closely with an outsourced IT support provider, taking ownership of issues that require deeper application, data or configuration knowledge. ...

portfolio of around 300 applications and a similar number of third-party suppliers. This is a highly visible role working across legacy systems, operational teams, risk, suppliers and project stakeholders to ensure upgrades, decommissioning activity and application change are delivered safely and effectively. Key responsibilities Lead … coordinate activity across a large portfolio of third-party applications, including legacy systems, upgrades and decommissioning work. Liaise with third-party suppliers to plan, prioritise and deliver application change, ensuring upgrades are managed effectively and service risks are understood. Work closely with operational teams, risk stakeholders ...

Business Systems Analyst Location: Pontefract, West Yorkshire Salary: Up to £60,000 per annum Job Type: Permanent, Full-Time This role is onsite (with some flexibility around hybrid working) About the Role Renzo Talent are recruiting on behalf of a well-established organisation based in Pontefract. We are seeking … Business Systems Analyst to support the modernisation of their business applications and processes. This role will play a key part in replacing two legacy systems and contributing to the discovery, design, and implementation of a new Enterprise Resource Planning (ERP) system. The successful candidate will work ...

total software engineering experience with a track record of successfully managing, scaling, and transforming engineering teams within a fast‐paced SaaS environment. Mobile & Systems Architecture Depth: Hands‐on expertise in modern mobile application development (iOS, Android, ReactNative, or Flutter) alongside proven experience navigating hybrid environments combining legacy systems and cloud microservices. AI Conviction: Genuine conviction about AI in engineering—you’ve moved teams beyond AI as a curiosity to AI as a core capability multiplier in developer workflows and product features. Pragmatic Debt Navigator: A track record of navigating legacy systems ...

total software engineering experience with a track record of successfully managing, scaling, and transforming engineering teams within a fast-paced SaaS environment.* Mobile & Systems Architecture Depth: Hands-on expertise in modern mobile application development (iOS, Android, React Native, or Flutter) alongside proven experience navigating hybrid environments combining legacy systems and cloud microservices.* AI Conviction: Genuine conviction about AI in engineering—you've moved teams beyond AI as a curiosity to AI as a core capability multiplier in developer workflows and product features.* Pragmatic Debt Navigator: A track record of navigating legacy systems ...

digital services within a major national registration domain. You will join an established cross‐functional engineering team working to enhance, replace and support core systems as part of a transition from legacy platforms to a modern hybrid‐cloud environment. What you’ll do Develop and support Spring … Boot web applications and REST APIs deployed in OpenShift Contribute to the transition from legacy systems into a cloud‐first architecture Support and enhance domain‐specific systems, including case management, workflow and register services Lead technical delivery for web applications that enable end‐to‐end processing ...

build new solutions in support of strategic business initiatives, andinitiatives and mature our existing software and efficiently migrate and re-platform legacy systems to the cloud, using cloud native design patterns. Working closely with the enterprise architecture stream and platform engineering team to ensure alignment to organisational … assist the wider scrum team in taking accountability for theirs Work with platform engineering to automate build and deploy of existing and new systems Support the strategic goals of Capital Markets development; greenfield initiatives, replatforming and consolidating legacy systems, and adopting an automation-first approach ...

solutions in support of strategic business initiatives, and initiatives and mature our existing software and efficiently migrate and re-platform legacy systems to the cloud, using cloud native design patterns. Working closely with the enterprise architecture stream and platform engineering team to ensure alignment to organisational technology … assist the wider scrum team in taking accountability for theirs Work with platform engineering to automate build and deploy of existing and new systems Support the strategic goals of Capital Markets development; greenfield initiatives, replatforming and consolidating legacy systems, and adopting an automation-first approach ...

years of total software engineering experience with a track record of successfully managing, scaling, and transforming engineering teams within a fast-paced SaaS environment.Mobile & Systems Architecture Depth: Hands-on expertise in modern mobile application development (iOS, Android, React Native, or Flutter) alongside proven experience navigating hybrid environments combining legacy systems and cloud microservices.AI Conviction: Genuine conviction about AI in engineering—you've moved teams beyond AI as a curiosity to AI as a core capability multiplier in developer workflows and product features.Pragmatic Debt Navigator: A track record of navigating legacy systems and technical ...

legacy designs and tackle obsolescence projects. Your innovative thinking and problem-solving skills will be at the forefront, ensuring that older systems are revitalised and continue to perform at their best. The ideal candidate will possess a strong background in hardware design engineering. Proficiency in CAD tools … deep understanding of electronic components and systems are crucial. Experience with legacy systems and obsolescence management will set you apart, demonstrating your ability to navigate and update older technologies effectively. Experience & Skills required for the Senior Electronic Design Engineer – High Speed Digital, Reading: Proven experience with ...

with the customer support department and project teams to work with the development and evolution of database solutions, migrating data from legacy systems, and designing conceptual and logical data models. Working with a large and long standing data model, the successful applicant will be working to organise … optimise the data, the database systems, define security procedures, and collaborate with the business department to identify future needs and requirements. Responsibilities Develop database solutions to store and retrieve company information Install and configure information systems to ensure functionality Analysing, planning, and defining data architecture framework, including security ...

execution of the technical vision and strategy across multiple squads. Lead the design, architecture, and development of scalable, reliable, and high-performance software systems, including system design, technology selection, and overall architecture. Champion data integrity and performance, ensuring systems are designed for scalability and operational resilience. … telemetry, alerts, and logs to ensure system reliability and performance. Expertise in data architecture and modelling, with a strong understanding of legacy systems and performance optimisation techniques relevant to operational data platforms. Proven experience designing and implementing event‐driven architectures (EDA) to support real‐time data flows. ...

tooling. They are seeking an experienced Engineering Manager to provide technical leadership across a complex technology landscape, balancing the challenges of legacy systems with the adoption of modern cloud-native technologies. This role will suit an engineering leader who is comfortable operating as a technology generalist, engaging … shape engineering strategy, modernisation plans and delivery outcomes. Key Responsibilities Lead engineering activities across a significant pricing transformation initiative. Assess existing legacy systems, applications and codebases to identify opportunities for improvement. Provide technical guidance and recommendations on modernisation strategies and technology investments. Work closely with engineering teams ...

design and delivery of scalable, secure, cloud-first integrations that power real business impact? Excited by the challenge of modernising legacy systems while driving best-practice engineering across Agile teams? As our Integration Lead Developer, youll drive the organisations integration capabilitydesigning and delivering secure, scalable solutions that … connect systems, products and partners. Youll act as the technical authority for APIs, define integration patterns, build reusable components and champion cloud-first (AWS) delivery. Working hands-on in an Agile environment, youll modernise legacy systems, support enterprise architecture evolution and collaborate across teams to enable ...

role in the development, optimisation and evolution of complex database solutions. You will be responsible for managing data migration from legacy systems, designing robust data models, improving database performance, and supporting business-critical management information systems. Working within a collaborative environment, you will help drive data strategy … future business needs. Key Responsibilities Develop and maintain database solutions to efficiently store and retrieve business-critical information Install, configure and support information systems to ensure optimal functionality Analyse, plan and define data architecture frameworks, including: Security Reference data Metadata Master data management Migrate data from legacy ...

architecture across teams, helping avoid unnecessary coupling and complexity while keeping teams focused on pragmatic, high-impact solutions. Dive into complex legacy systems, identify root causes of friction, and define a clear path to modernisation Deliver high-quality, reliable production code through testing, logging, and alerting Move … leadership. Leverage AI-assisted engineering to accelerate system understanding and delivery Establish best practices, guardrails, and tooling to improve engineering velocity and safety Ensure systems are scalable, reliable, and adaptable as we grow Partner closely with Engineering and Platform You will raise our technical bar by mentoring senior engineers ...

Regions on both direct and indirect deals, supporting them during solutioning phases as well as during critical delivery phases. Whether modernizing legacy systems or building solutions from scratch, you will apply agentic AI to transform how projects are executed end‐to‐end. What you’ll do Architect … primary language; hands‐on experience with Python, Rust, and TypeScript/JavaScript. Proven delivery experience applying agentic AI to modernise legacy systems or build new solutions. Hands‐on expertise with agentic AI frameworks such as AutoGen, Semantic Kernel, LangChain, or equivalents. Ability to apply AI agents across ...

teams, driving large‐scale modernization programs, and fostering a culture of innovation. You will be at the forefront of transforming our legacy systems into a modern, data‐enabled, and microservices‐based architecture to support our growing business needs. Key Responsibilities Technology Leadership & Strategy Define and execute … Finance, Agency Lending, or Collateral Management/Optimization is strongly preferred. Proven experience leading a successful, large‐scale technology transformation from legacy systems to a microservices‐based architecture. Education Bachelor’s or Master’s degree in Computer Science, Engineering, or a related technical field. Desired Skills Technical ...

teams, driving large-scale modernization programs, and fostering a culture of innovation. You will be at the forefront of transforming our legacy systems into a modern, data-enabled, and microservices-based architecture to support our growing business needs.**Key Responsibilities*** **Technology Leadership & Strategy:** + Define and execute … Agency Lending, or Collateral Management/Optimization is strongly preferred. + Proven experience leading a successful, large-scale technology transformation from legacy systems to a microservices-based architecture.* **Education:** + Bachelor’s or Master’s degree in Computer Science, Engineering, or a related technical field.**Desired Skills ...