1 to 25 of 60 Legacy Systems Jobs in London

Governance: Develop, maintain, and realize architecture standards and principles that guide technology decisions across the organization. Technology Oversight: Provide strategic oversight of Awin’s systems, platforms, and infrastructure, including legacy systems and cloud-native environments. Integration Leadership: Lead architecture reviews and integration efforts across domains such … experts to ensure architectural consistency and scalability. Strategic Planning: Contribute to long-term planning for platform evolution, including the sunsetting of legacy systems and migration to unified platforms. Mentorship & Enablement: Support solution architects and engineering teams by providing architectural guidance and fostering a culture of technical excellence. ...

Finance Systems (SAP) Lead Work Location: Chiswick, London, UK (3 days) It Means More (Personalised Bullet Points) We are seeking a highly skilled and hands-on SAP Finance Process Lead to support and enhance customer's Finance operations within SAP ECC 6. This role will serve as the primary … support. The ideal candidate will have deep functional knowledge of SAP Finance modules, strong configuration skills, and the ability to bridge legacy systems with future-state architecture3rd personalised bullet points The Role Candidate would be able to work with Business teams. This role ensures smooth operation ...

jobJoining The AA as an Enterprise Integration Architect, you will be central to shaping and delivering the enterprise integration strategy, ensuring our systems are seamlessly connected, resilient, and future ready. As the architectural lead for integration platforms and services, you’ll work closely with the CIO and senior stakeholders … across architecture standards. This is a high-impact role requiring deep technical expertise in enterprise technologies (such as TIBCO or similar), legacy systems, and application platforms. Pragmatic thinking, strong stakeholder engagement, and a focus on long-term value are essential to success.What will I be doing?Define ...

jobJoining The AA as an Enterprise Integration Architect, you will be central to shaping and delivering the enterprise integration strategy, ensuring our systems are seamlessly connected, resilient, and future ready. As the architectural lead for integration platforms and services, you'll work closely with the CIO and senior stakeholders … across architecture standards. This is a high-impact role requiring deep technical expertise in enterprise technologies (such as TIBCO or similar), legacy systems, and application platforms. Pragmatic thinking, strong stakeholder engagement, and a focus on long-term value are essential to success.What will I be doing?Define ...

direct impact on millions of lives? You'll 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. With solid groundwork already in place, you'll have real freedom … next generation of our products. This role would suit an experienced PHP developer who's ready to step beyond maintaining legacy systems and help build something modern, scalable, and genuinely impactful. If you're excited by the idea of using your technical skills to support a Tech ...

sole complex and technical challenges. You'll 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. With solid groundwork already in place, you'll have real freedom to shape … next generation of our products. This role would suit an experienced PHP developer who's ready to step beyond maintaining legacy systems and help build something modern, scalable, and genuinely impactful. If you're excited by the idea of using your technical skills to support a Tech ...

sole complex and technical challenges. You'll 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. With solid groundwork already in place, you'll have real freedom to shape … next generation of our products. This role would suit an experienced PHP developer who's ready to step beyond maintaining legacy systems and help build something modern, scalable, and genuinely impactful. If you're excited by the idea of using your technical skills to support a Tech ...

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 ...

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 ...

scalable services using Python as the primary backend language, while supporting existing services built in Java and .NET. Maintain and enhance legacy systems using Oracle SQL PL. Implement Test-Driven Development (TDD) practices, ensuring automated tests are written prior to code development. Work with complex data challenges ...

Ideally S-100 but S-57 at a minimum. Cloud & Legacy Migration Successfully contributed to the migration of critical legacy systems to cloud-based infrastructure. Working knowledge of a major cloud provider (e.g., AWS, Azure, or GCP) and familiarity with Infrastructure as Code (IaC) tools … like Terraform or CloudFormation. Experience working on large, complex codebases and legacy systems. Nice to have skills. Knowledge of S-101 (ENC) and other S-100 product specifications Experience with chart compilation tools or GIS platforms used for hydrographic data processing. Experience with Azure DevOps and CI/ ...

using ASP.NET MVC 5, C#, and React, delivering high-quality, scalable, and maintainable code. Contribute to the migration and modernisation of legacy systems, ensuring clean architecture, efficient implementation, and future scalability. Apply SOLID principles, object-oriented design, and industry best practices to build secure, performant, and fault … technologies (HTML5, CSS3, JavaScript, React) to ensure engaging and responsive user experiences. Integrate APIs and third-party services, ensuring robust, efficient connectivity with external systems and platforms. Manage source control, branching, and deployments using GitLab or Azure DevOps pipelines, ensuring seamless delivery across environments. Participate in code reviews, mentor ...

critical assignment for a Database Migration Engineer. This role sits within their Technology and Digital Services function and will lead the conversion of legacy Microsoft Access databases into modern data platforms built on SQL Server and SharePoint. You will take ownership of end-to-end migration activity, working … processes, or wider Microsoft data/Power Platform tooling This assignment forms part of a wider modernisation programme aimed at replacing legacy systems with secure, maintainable environments. You will be joining at a critical point, with scope to directly influence the success and pace of delivery. ...

Senior 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++ ...

team on a key technology project. This role involves significant stakeholder engagement and the coordination of multiple project streams to replace legacy systems and streamline processes. Day-to-day of the role: Lead the delivery of the project which involves replacing legacy indoor workload tools ...

will work within a delivery squad, collaborating closely with stakeholders, product owners, and technical teams to enable seamless migration from legacy systems and drive adoption of Salesforce across the organisation. Key Responsibilities: Engage with business stakeholders to gather, validate, and prioritise requirements. Analyse existing processes and identify ...

Microsoft Dynamics, Bloomreach and Hightouch. Key Responsibilities: Define and lead the solution design and architecture for CRM, Customer Data Platform (CDP), and marketing technology systems Manage and ensure smooth data migration from legacy systems Collaborate with external implementation partners and internal stakeholders including Sales, Service, Membership ...

scalable, and secure cloud platforms to support global operations and business continuity. Transformation Collaborate with architects and engineering teams to modernise legacy systems and enable cloud-native development. Lead the integration of Azure AI services (including Azure OpenAI, Cognitive Services, and Machine Learning) into key business applications. ...

Shoreditch studio, two days remote Type: Full-time, permanent Start date: ASAP Are you a senior front-end engineer who loves solving problems, improving systems, and bringing order to fast-paced agency workflows? This role blends hands-on front-end development with DevOps, infrastructure, and CMS expertise to create … Front-end engineering • CMS implementation (CraftCMS or similar headless CMS) • DevOps, infrastructure, and deployment pipelines Around 60% of your time will be spent modernising systems, optimising deployments, managing servers and improving workflows. The remaining 40% will be hands-on front-end engineering, building elegant digital experiences in collaboration with ...

hands on experience in component migrations. A proactive and detail-oriented approach will be vital to ensure smooth transitions from legacy systems to scalable, reliable, and future-proof solutions. In addition, experience with software testing practices, Agile methodologies (Scrum or Kanban), and defensive programming techniques will … thrives in collaborative, fast-paced teams, who can balance technical precision with delivery deadlines, and who is motivated by the challenge of modernising complex systems to drive efficiency and long-term sustainability. Essential Key Skills and Responsibilities You will have: Good working experience with continuous integration and continuous delivery ...

TypeScript Engineer to help shape the services and tooling behind this transformation. The team's mission is to replace legacy systems with clean, event-driven services and provide consistent, reliable data to applications across the business - from customer-facing products to operational systems. The Role … background workers, and microservices. Ability to work with SQL or NoSQL databases and understand how to model and query data effectively. Familiarity with distributed systems concepts such as event sourcing, resilience patterns, and asynchronous communication. Experience with containerised development (Docker) and deploying cloud-native applications (Azure ...

Land Registry (HMLR) is undertaking one of the largest transformation programmes in government, modernising the digital systems that support over £7 trillion of property ownership. As a Data Engineer, you will support the development of HMLR's data engineering capability by helping to build and maintain reliable data pipelines … funding secured and a dedicated Data Engineering capability being formed for the first time, there is a crucial need to build strong, reliable data systems that can support future services and national programmes. As a Data Engineer, you'll work closely with senior data engineering colleagues and multidisciplinary teams ...

Land Registry (HMLR) is undertaking one of the largest transformation programmes in government, modernising the digital systems that support over £7 trillion of property ownership. As a Data Engineer, you will support the development of HMLR's data engineering capability by helping to build and maintain reliable data pipelines … funding secured and a dedicated Data Engineering capability being formed for the first time, there is a crucial need to build strong, reliable data systems that can support future services and national programmes. As a Data Engineer, you'll work closely with senior data engineering colleagues and multidisciplinary teams ...

improve efficiency, quality, and organisational alignment. Employing structured methodologies such as Lean or Six Sigma. Recommending the rationalisation or decommissioning of legacy systems, reporting mechanisms, or processes as appropriate. Plan, organise, and monitor detailed activities and deliverables across workstreams. Assist with scope definition and prioritisation to ensure … stakeholder engagement sessions to capture insights and validate proposed solutions. Operate adaptively within evolving project and programme frameworks. Oversee the migration of legacy files into modern architectures, supporting broader data and digital migration strategies. Evaluate and contribute to the deployment of digital tools, including Power BI and M365. ...

ITOM inside out, and understands exactly how cloud workflows and infrastructure processes really run behind the scenes? If you thrive on translating messy legacy processes into clean, scalable ServiceNow capability, this role is written for you. This is your chance to step into a senior position where your … across ITSM and ITOM, ensuring alignment with ITIL principles and platform best practice. Shaping cloud workflow requirements, supporting controlled migration from legacy systems and ensuring governance, dependencies, and operational risk are fully understood. Reviewing data models, integrations, and test coverage to ensure the solution lands cleanly ...