1 to 25 of 53 Permanent Legacy Systems Jobs in London

please view our Moorfields benefits leaflet. Job description Job responsibilities MAIN RESPONSIBILTITES Create a cutover plan detailing the transition from the legacy systems/paper toMoorConnectEPR (consisting of bothOpenEyesand Expanse). The plan to detail cutover for, Integration, Infrastructure including security implications, Service Desk, IM/Data … Rehearsal (FDR) Plan and owning delivery of the Technical Plan during FDR. Proficiency in creating a cutover plan detailing transition from legacy systems to EPR offering, including modules deployment. Desirable Cutover experience on a MEDITECH Expanse deployment Project Management Experience Essential Experience in managing decision and checkpoint ...

With solid groundwork already in place, you will take the lead in defining the technical future, steering the transition from legacy PHP systems to a modern, scalable platform built with Laravel, InertiaJS, and Vue 3. This role would suit an experienced Lead PHP developer experienced with Laravel … ready to step beyond maintaining legacy systems and help build something modern, scalable, and genuinely impactful. The Role: Lead the team and support Full Stack development Take responsibility for legacy PHP systems, ensuring they remain reliable as you progressively build a new platform. Hours ...

North London office throughout the year. You'll take ownership of the technical direction, guiding the transition from legacy PHP systems to a modern, scalable architecture using Laravel, InertiaJS, and Vue 3. This position is ideal for an experienced Lead Software Developer who is ready to move … beyond maintaining legacy systems and wants to build something modern, meaningful, and impactful. The Role: Lead and mentor a small team while remaining hands-on with full-stack development Maintain and support existing legacy PHP systems while overseeing the build of a new platform ...

needed. Lead a dedicated test team of three to four members, coordinating their activities to ensure thorough validation of outputs between legacy systems and new technology solutions. Support comprehensive testing efforts by collaborating with testers across multiple locations, including the UK and Poland, guaranteeing accuracy and reliability … system outputs. Utilise advanced data analytics skills to compare, reconcile, and validate outputs from legacy systems against those generated by the new platform. Prepare detailed reports for clients or senior management covering incidents, proposals, or other relevant areas as required by operational needs. Attend and contribute meaningfully ...

Join Our Team as a Finance Systems Lead at Foster + Partners Foster + Partners is one of the world’s most innovative and respected studios for sustainable architecture, urbanism, engineering, and design. Founded by Norman Foster in 1967, we’ve grown into a global community of over … expand, we’re implementing a new ERP platform to support the next chapter of our growth — and we’re looking for a skilled Finance Systems Lead to help shape that future. About the role As our Finance Systems Lead , you will own and optimise F+P’s financial systems ...

Contract) We’re working with a technology-led company building a modern enterprise platform used by large organisations. The product replaces legacy systems with scalable, secure, and reliable software. This is an 8-week contract, outside IR35, fully remote, open to UK & EU-based engineers, paying … starting immediately. The Role You’ll be responsible for key backend systems that support enterprise, multi-user workflows, with a strong focus on scalability, security, and reliability. You’ll work closely with internal product and engineering stakeholders to turn evolving requirements into robust, production-ready systems. Responsibilities Build ...

just advise from the sidelines Technical Environment Multiple platforms and applications AWS and Azure cloud environments Mix of legacy and modern systems Mainframe experience is beneficial Cloud-native and modern applications DevOps skills and mindset are highly desirable About You Proven experience as a Senior … Coach/Consultant Strong background in transforming ops teams and operating models Comfortable working with both modern cloud platforms and legacy systems Excellent stakeholder engagement and coaching skills Passionate about culture change and building sustainable SRE practices Collaborative, pragmatic, and outcome-focused Why Join? This ...

scale insurance carriers. This role is critical in ensuring seamless connectivity between Insurance platforms (e.g., Guidewire PolicyCenter, BillingCenter, ClaimCenter, Reinsurance Management) and external enterprise systems, InsurTech platforms, regulatory bodies, and cloud environments. Key Responsibilities: Integration Architecture & Solution Design Architect scalable, high-performance, and secure integration solutions for Insurance policy … real-time claims validation, risk modeling, and actuarial data processing. Lead legacy modernization efforts, defining data migration strategies from on-prem core systems to insurance platforms. Design and implement Guidewire Edge APIs, GX Models, Messaging Framework, and Integration Gateway for external system connectivity. Optimize performance, security ...

international membership organisation operating within the healthcare education and research sector. This forward-thinking not-for-profit organisation is seeking an experienced Digital Systems Manager to join them during an exciting period of digital transformation. About the Organisation As a multidisciplinary membership organisation, they champion research, education, and knowledge … providing online learning resources to members worldwide. The role The organisation has invested significantly in digital infrastructure over recent years, replacing legacy systems with a modern, integrated tech stack centred around Salesforce and Fonteva. They have built a sophisticated member portal, integrated online payment systems ...

focused on creating a cohesive architecture that supports business growth and operational excellence. You'll assess the current technology landscape across trading systems, finance, and middle office, identify gaps, and design a roadmap to leave legacy systems behind and build a modern, integrated ecosystem. This … hands-on coding role - it's about vision, strategy, and influence. You'll guide the mapping and research phase, evaluate pricing and trading systems, and make informed recommendations that transform how we operate. We need someone who can bridge the gap between technology and business. What ...

seen what technology can do. Now, imagine building the systems to make it happen from the ground up. An organisation dedicated to building public trust and setting professional standards is at a crossroads. Despite their critical mission, they've never had a dedicated Architecture team. Instead, this has been … architect in a small team managing a transformation, designing and owning the technology strategy from the ground up, and building scalable, secure systems that unify fragmented processes. It's not just about solving today's technology challenges, you'll be reshaping how the organisation operates, turning aging systems ...

Senior C++ Developer you will design and develop high throughput backend services for microsecond real-time risk, pricing, trading engines and market making systems, working across the full software development lifecycle using Rust (and some C++ for legacy systems). You'll collaborate with a small … talented team, problem solving and working on complex and challenging systems with interesting work. Location/WFH: You'll join the team in Central London with flexibility to work from home 1-2 days a week. About you: You have strong backend OOP, multithreaded software engineering experience with C++ ...

functional specifications for WRICEF objects relating to reporting, interfaces, and reconciliations. Manage data migration of GL balances, open items, and consolidation structures from legacy systems. Run at least two full mock close cycles prior to go-live, ensuring reconciliation of trial balances and intercompany eliminations. Ensure integration with ...

trillion on benefits every year. It’s their second-largest cost after payroll — yet the entire category is still running on legacy systems and outdated assumptions. The space is primed for transformation: despite its scale, it’s been almost completely overlooked by AI-first startups. Incumbents — including … resident expert. You won't just be tuning hyperparameters in a notebook; you will be a core software engineer architecting the complex systems that make AI useful in production. In the immediate future, your time will be split between crafting complex AI processing architectures (40%) and hands-on data ...

Backend Software Engineer you will design and develop high throughput backend services for microsecond real-time risk, pricing, trading engines and market making systems, working across the full software development lifecycle using Rust (and some C++ for legacy systems). You'll collaborate with a small … talented team, problem solving and working on complex and challenging systems with interesting work. Location/WFH: You'll join the team in Central London with flexibility to work from home 1-2 days a week. About you: You have strong backend OOP, multithreaded software engineering experience with C++ ...

data centres and cloud environments. Key focus areas include: Leading the migration from Nomad to Kubernetes across a hybrid infrastructure environment Designing highly available systems that support real-time trading operations Expanding the firm's cloud footprint (AWS/Azure/GCP) while maintaining on-prem capabilities Owning projects … from design through production What you'll need: Production experience with Kubernetes (EKS/AKS/GKE or bare-metal) Strong Linux systems background; Windows experience is beneficial Track record delivering cloud migrations and managing hybrid environments Experience supporting mission-critical, highly available systems What makes this different ...

Data Migration Officer will play a key role in ensuring the accurate and secure migration of HR and payroll data from legacy systems into the new HCM platform. You will work closely with HR, technology teams, third-party suppliers, and a dedicated project team to deliver high ...

mentor developers, contribute to architectural decisions, and support multidisciplinary delivery across the squad. Development is centred around a Microservices architecture, with involvement in legacy systems. Beyond squad work, you’ll be part of the Back End Chapter, collaborating on technology choices, standards, and continuous improvement initiatives. Required Skills ...

Cleared Java Developer to join a leading technology consultancy working on the upgrade, enhancement, and modernisation of a number of business-critical legacy systems. You will be part of a collaborative Agile delivery team , helping to improve system performance, resilience, and scalability while ensuring continuity for end users. … nature of the work, active SC Clearance is essential . Key Responsibilities Design, develop, and enhance Java-based applications supporting legacy systems Contribute to iterative development within an Agile/Scrum environment Build and consume web services using REST/JSON and XML/SOAP APIs Write ...

contact between development, research, analysis, and operations teams. Coordinate multiple technical projects, ensuring priorities, timelines and resourcing stay aligned. Structure workflows, manage ticketing systems and monitor progress to keep delivery on track. Identify bottlenecks and inefficiencies, and implement practical process improvements. Balance the needs of legacy systems … from afar. Comfortable working full-time on-site in a smaller, agile environment. Desirable (not essential): Experience with project/ticketing tools, version control systems (e.g.?Git,?PlasticSCM,?Hg), and awareness of project management best practices or frameworks. What's on offer Competitive salary of £70k?-?£90k DOE?+ ...

contact between development, research, analysis, and operations teams. Coordinate multiple technical projects, ensuring priorities, timelines and resourcing stay aligned. Structure workflows, manage ticketing systems and monitor progress to keep delivery on track. Identify bottlenecks and inefficiencies, and implement practical process improvements. Balance the needs of legacy systems … from afar. Comfortable working full-time on-site in a smaller, agile environment. Desirable (not essential): Experience with project/ticketing tools, version control systems (e.g. Git, PlasticSCM, Hg), and awareness of project management best practices or frameworks. What's on offer Competitive salary of £70k - £90k DOE + ...

Technical Leadership Own the architecture of the company's data platform, ensuring scalability, reliability, and security. Drive modernisation by transitioning from legacy systems to a lean, scalable platform. Act as a lead expert for technologies such as AWS, DBT, Airflow, and Databricks. Establish best practices for data ...

technical architecture - Creating a solid overview of the current environment and developing future technology roadmaps - Planning the move away from legacy systems to new digital technology and cloud migration To be considered suitable for this IT Enterprise Architect role you will need to have the following skills ...

pain points Translate problems into data-driven workflows, working with engineers to extract and structure data from equipment and legacy systems Work with customers, from the C-Suite to operators on the line, to build bespoke applications Lead training sessions to ensure the deployed applications serve their ...

Product Manager - Digital & Asset Systems The Opportunity A leading organisation is delivering a major long-term infrastructure and sustainability programme. We’re looking for a Product Manager to take ownership of critical digital and data systems that support complex assets, large-scale projects, and multi-organisation collaboration. This … that enable efficiency, compliance, and smarter decision-making. What You’ll Be Doing Manage digital products spanning asset management, GIS, and programme/project systems . Shape and deliver a multi-year roadmap that aligns multiple stakeholders under one data strategy. Lead upgrades, migrations, and integrations of legacy ...