201 to 225 of 240 Legacy Systems Jobs in London

core banking transformations, including SAP S/4HANA Core Banking and Transactional Banking (TRBK) migrations, platform consolidation, and post-merger integration strategies. Expertise in both legacy core systems and modern composable architectures, with a focus on SAP’s modular, service-oriented architecture. Proven ability to define and execute target-state architectures and migration roadmaps for banks transitioning More ❯

Join Kao Data as a Process and IT Systems Manager- Drive Excellence in AI-Focused Data Centres! Kao Data leads the industry, pioneering the development and operation of data centres engineered for AI and advanced computing. With a hyperscale-inspired and industrial scale platform, we provide our customers with a secure, scalable, and sustainable home for their compute. About … the Role We are looking for a Process and IT Systems Manager to work across all business functions to bring structure, consistency, and best practice to legacy processes and systems. The role will define and execute a medium-to-long-term strategy for digital transformation, aligned with Kao’s ambitions and growth objectives. As a Process & IT … Systems Manager, you will be strategic and a technically adept leader responsible for designing and implementing a scalable, cross-functional process and systems infrastructure. This role is central to Kao’s business transformation agenda, ensuring business process excellence and readiness for future growth. Key Responsibilities Develop and execute a holistic process and systems strategy, incorporating use of More ❯

Join Kao Data as a Process and IT Systems Manager- Drive Excellence in AI-Focused Data Centres! Kao Data leads the industry, pioneering the development and operation of data centres engineered for AI and advanced computing. With a hyperscale-inspired and industrial scale platform, we provide our customers with a secure, scalable, and sustainable home for their compute. About … the Role We are looking for a Process and IT Systems Manager to work across all business functions to bring structure, consistency, and best practice to legacy processes and systems. The role will define and execute a medium-to-long-term strategy for digital transformation, aligned with Kao’s ambitions and growth objectives. As a Process & IT … Systems Manager, you will be strategic and a technically adept leader responsible for designing and implementing a scalable, cross-functional process and systems infrastructure. This role is central to Kao’s business transformation agenda, ensuring business process excellence and readiness for future growth. Key Responsibilities Develop and execute a holistic process and systems strategy, incorporating use of More ❯

Join Kao Data as a Process and IT Systems Manager- Drive Excellence in AI-Focused Data Centres! Kao Data leads the industry, pioneering the development and operation of data centres engineered for AI and advanced computing. With a hyperscale-inspired and industrial scale platform, we provide our customers with a secure, scalable, and sustainable home for their compute. About … the Role We are looking for a Process and IT Systems Manager to work across all business functions to bring structure, consistency, and best practice to legacy processes and systems. The role will define and execute a medium-to-long-term strategy for digital transformation, aligned with Kao’s ambitions and growth objectives. As a Process & IT … Systems Manager, you will be strategic and a technically adept leader responsible for designing and implementing a scalable, cross-functional process and systems infrastructure. This role is central to Kao’s business transformation agenda, ensuring business process excellence and readiness for future growth. Key Responsibilities Develop and execute a holistic process and systems strategy, incorporating use of More ❯

Join Kao Data as a Process and IT Systems Manager- Drive Excellence in AI-Focused Data Centres! Kao Data leads the industry, pioneering the development and operation of data centres engineered for AI and advanced computing. With a hyperscale-inspired and industrial scale platform, we provide our customers with a secure, scalable, and sustainable home for their compute. About … the Role We are looking for a Process and IT Systems Manager to work across all business functions to bring structure, consistency, and best practice to legacy processes and systems. The role will define and execute a medium-to-long-term strategy for digital transformation, aligned with Kao’s ambitions and growth objectives. As a Process & IT … Systems Manager, you will be strategic and a technically adept leader responsible for designing and implementing a scalable, cross-functional process and systems infrastructure. This role is central to Kao’s business transformation agenda, ensuring business process excellence and readiness for future growth. Key Responsibilities Develop and execute a holistic process and systems strategy, incorporating use of More ❯

to cloud migration projects and shape new technology transformation workstreams. The Role Lead cloud modernisation projects (on-premise to public cloud) End-to-end life cycle management and legacy system transformation Navigate government commercial frameworks and procurement Work on new initiatives from inception with team of 5 Essential Skills Cloud modernisation experience (AWS/Azure) - disqualifying if absent … Legacy technology transformation (VMware, Hyper-V, Oracle) Government sector experience (almost essential) Agile delivery and digital service modernisation Strategic thinking with technical depth The Details Rate: £675/day inside IR35 Duration: 6 months Location: London/Bristol/Manchester (any location, flexible working) Clearance: BPSS minimum, SC preferable More ❯

to cloud migration projects and shape new technology transformation workstreams. The Role Lead cloud modernisation projects (on-premise to public cloud) End-to-end life cycle management and legacy system transformation Navigate government commercial frameworks and procurement Work on new initiatives from inception with team of 5 Essential Skills Cloud modernisation experience (AWS/Azure) - disqualifying if absent … Legacy technology transformation (VMware, Hyper-V, Oracle) Government sector experience (almost essential) Agile delivery and digital service modernisation Strategic thinking with technical depth The Details Rate: £675/day inside IR35 Duration: 6 months Location: London/Bristol/Manchester (any location, flexible working) Clearance: BPSS minimum, SC preferable More ❯

integrations sub-workstream from the ground up. This role is critical for technical readiness, involving the design of integration patterns that will connect Workday with crucial internal and external systems across HR, Finance, and Payroll. The Role: End-to-End Integration Strategy & Delivery You will report directly to the Senior Technical Delivery Manager, acting as the primary authority for … Studio, EIB, Core Connectors, PECI, and APIs . Middleware Expertise: Leverage experience with middleware platforms (e.g., MuleSoft, Boomi, Azure Integration Services) to connect Workday to third-party and legacy systems. Delivery Management: Oversee the build, testing, and secure deployment of multiple integrations in parallel, collaborating closely with IT and external vendors. Compliance: Produce technical artefacts (interface inventory, data … processes. Strong stakeholder management with IT, vendors, and business owners. Desirable: Previous experience in the Public Sector or regulated industries. Exposure to hybrid ecosystems where Workday coexists with legacy systems. Next Steps This is an Inside IR35 contract with a high likelihood of extension. If you are an SC Cleared Workday Integration Lead with the required greenfield experience More ❯

businesses. Our people, with deep-rooted expertise and specialist knowledge, are the driving force behind our end-to-end solutions, which are also backed by our enduring global Legacy and advanced capabilities. This combination puts us in a unique position to meet the evolving needs of our customers and guide them confidently through their digital transformation, as a … tailored to client needs. Designing and testing D365 Business Central customisations and supporting client acceptance. Participating in go-live cutover exercises and ensuring data is reconciled back to Legacy systems. Guiding projects with daily communication with customers or project managers. Participating in design and architecting sessions with fellow consultants. Supervising and mentoring junior consultants to support their development. More ❯

regulated environments. Key Responsibilities: Define and lead enterprise API strategy and architecture Drive API adoption and governance across teams Ensure secure, scalable integration with legacy and cloud systems Maintain compliance with financial regulations Monitor and optimise API performance and developer experience Experience Required: Proven leadership in large-scale API programmes Expertise in REST, OAuth2, OpenAPI, and API More ❯

regulated environments. Key Responsibilities: Define and lead enterprise API strategy and architecture Drive API adoption and governance across teams Ensure secure, scalable integration with legacy and cloud systems Maintain compliance with financial regulations Monitor and optimise API performance and developer experience Experience Required: Proven leadership in large-scale API programmes Expertise in REST, OAuth2, OpenAPI, and API More ❯

Type: Permanent/Client-Facing Role About the Role Entasis Partners is supporting a leading consultancy to secure an experienced Enterprise Architect to drive technology and platform strategy, legacy system modernisation, and M&A integration initiatives. This is a high-impact, client-facing role where you’ll partner with senior stakeholders to define technology roadmaps, rationalise complex IT … technology and platform strategies to support business transformation objectives. Lead legacy system modernisation, including cloud migration, platform consolidation, and process optimisation. Drive M&A integration initiatives, aligning systems, data, and processes across organisations. Advise on enterprise architecture frameworks and best practices to ensure scalable, secure, and future-ready IT landscapes. Mentor and guide cross-functional teams, fostering … senior stakeholders. What We’re Looking For from the Lead Enterprise Architect Proven experience as an Enterprise Architect focused on technology and platform strategy. Hands-on experience with legacy system modernisation, cloud platforms (Azure, AWS, GCP), and IT transformation programmes. Experience leading or supporting M&A integration projects, including system consolidation and rationalisation. Strong stakeholder management and influencing More ❯

Type: Permanent/Client-Facing Role About the Role Entasis Partners is supporting a leading consultancy to secure an experienced Enterprise Architect to drive technology and platform strategy, legacy system modernisation, and M&A integration initiatives. This is a high-impact, client-facing role where you’ll partner with senior stakeholders to define technology roadmaps, rationalise complex IT … technology and platform strategies to support business transformation objectives. Lead legacy system modernisation, including cloud migration, platform consolidation, and process optimisation. Drive M&A integration initiatives, aligning systems, data, and processes across organisations. Advise on enterprise architecture frameworks and best practices to ensure scalable, secure, and future-ready IT landscapes. Mentor and guide cross-functional teams, fostering … senior stakeholders. What We’re Looking For from the Lead Enterprise Architect Proven experience as an Enterprise Architect focused on technology and platform strategy. Hands-on experience with legacy system modernisation, cloud platforms (Azure, AWS, GCP), and IT transformation programmes. Experience leading or supporting M&A integration projects, including system consolidation and rationalisation. Strong stakeholder management and influencing More ❯

Type: Permanent/Client-Facing Role About the Role Entasis Partners is supporting a leading consultancy to secure an experienced Enterprise Architect to drive technology and platform strategy, legacy system modernisation, and M&A integration initiatives. This is a high-impact, client-facing role where you’ll partner with senior stakeholders to define technology roadmaps, rationalise complex IT … technology and platform strategies to support business transformation objectives. Lead legacy system modernisation, including cloud migration, platform consolidation, and process optimisation. Drive M&A integration initiatives, aligning systems, data, and processes across organisations. Advise on enterprise architecture frameworks and best practices to ensure scalable, secure, and future-ready IT landscapes. Mentor and guide cross-functional teams, fostering … senior stakeholders. What We’re Looking For from the Lead Enterprise Architect Proven experience as an Enterprise Architect focused on technology and platform strategy. Hands-on experience with legacy system modernisation, cloud platforms (Azure, AWS, GCP), and IT transformation programmes. Experience leading or supporting M&A integration projects, including system consolidation and rationalisation. Strong stakeholder management and influencing More ❯

Type: Permanent/Client-Facing Role About the Role Entasis Partners is supporting a leading consultancy to secure an experienced Enterprise Architect to drive technology and platform strategy, legacy system modernisation, and M&A integration initiatives. This is a high-impact, client-facing role where you’ll partner with senior stakeholders to define technology roadmaps, rationalise complex IT … technology and platform strategies to support business transformation objectives. Lead legacy system modernisation, including cloud migration, platform consolidation, and process optimisation. Drive M&A integration initiatives, aligning systems, data, and processes across organisations. Advise on enterprise architecture frameworks and best practices to ensure scalable, secure, and future-ready IT landscapes. Mentor and guide cross-functional teams, fostering … senior stakeholders. What We’re Looking For from the Lead Enterprise Architect Proven experience as an Enterprise Architect focused on technology and platform strategy. Hands-on experience with legacy system modernisation, cloud platforms (Azure, AWS, GCP), and IT transformation programmes. Experience leading or supporting M&A integration projects, including system consolidation and rationalisation. Strong stakeholder management and influencing More ❯

an Enterprise Application Architect to play a pivotal role in defining, developing, and governing their application architectures. This is an opportunity to lead on embedding automation and AI, modernising systems, and ensuring alignment with the TOGAF Standard as they deliver an ambitious digital strategy. The role - As Enterprise Application Architect, you will: Lead the development of application architectures that … are fully aligned with business, data, and technology domains. Drive application rationalisation and the retirement of legacy systems. Integrate automated, AI, and cloud-smart approaches at the heart of their digital estate. Create TOGAF-aligned deliverables including architecture principles, roadmaps, and gap analyses. Partner with senior stakeholders to translate business needs into effective, future-proof technology solutions. Provide More ❯

an Enterprise Application Architect to play a pivotal role in defining, developing, and governing their application architectures. This is an opportunity to lead on embedding automation and AI, modernising systems, and ensuring alignment with the TOGAF Standard as they deliver an ambitious digital strategy. The role. As an Enterprise Application Architect, you will: Lead the development of application architectures … that are fully aligned with business, data, and technology domains. Drive application rationalisation and the retirement of legacy systems. Integrate automated, AI, and cloud-smart approaches at the heart of their digital estate. Create TOGAF-aligned deliverables including architecture principles, roadmaps, and gap analyses. Partner with senior stakeholders to translate business needs into effective, future-proof technology solutions. More ❯

an Enterprise Application Architect to play a pivotal role in defining, developing, and governing their application architectures. This is an opportunity to lead on embedding automation and AI, modernising systems, and ensuring alignment with the TOGAF Standard as they deliver an ambitious digital strategy. The role. As an Enterprise Application Architect, you will: Lead the development of application architectures … that are fully aligned with business, data, and technology domains. Drive application rationalisation and the retirement of legacy systems. Integrate automated, AI, and cloud-smart approaches at the heart of their digital estate. Create TOGAF-aligned deliverables including architecture principles, roadmaps, and gap analyses. Partner with senior stakeholders to translate business needs into effective, future-proof technology solutions. More ❯

lead a new cloud modernisation programme within the government sector. This is a strategic leadership role where you'll shape the approach to transforming legacy on-premise systems to modern public cloud infrastructure. What You'll Be Doing Leading the strategy and execution of on-premise to cloud migration programmes Shaping new technology modernisation work-streams from … end technology transformation life-cycles Navigating government commercial frameworks and procurement processes Understanding and managing dependencies across operational support and outsourcing Applying modern practices (DevOps, SecOps, Agile) to legacy system modernisation Essential Experience Technical Proven experience leading cloud modernisation projects (on-premise to public cloud) Strong understanding of public cloud platforms (AWS, Azure) Experience with legacy More ❯

is a dynamic mix of operational management, strategic delivery, and hands-on problem-solving. You will: Lead Tech Operations: Ensure the security, reliability, and performance of our core IT systems, data platforms, and infrastructure, working closely with 3rd party providers. Drive Strategy: Collaborate directly with the CEO and executive team to define and deliver the company's ambitious technology … data, and AI roadmap. Deliver Change: Lead key projects, including replacing legacy finance systems (QuickBooks), potentially implementing a new CRM, and integrating AI enhancements for patient engagement and business efficiency. Optimise Specialist Systems: Manage and enhance the performance of specialist mole mapping hardware and work with technical teams to leverage embedded AI for diagnostic support. Build … data, or technology management, ideally within a multi-system or growing organisation. Data Expertise: A strong understanding of data management, reporting, and analytics. System Management: Experience managing third-party systems (e.g., CRM, finance, or clinical platforms). Tech Awareness: Familiarity with hardware, embedded AI, or a clear enthusiasm for applied technology and automation. Foundational Knowledge: Solid grasp of cybersecurity More ❯

Datapower Developer , you will be working closely with the technical team on development and implementation journeys. The role is centered on enabling and securing data flows between various enterprise systems, including mobile applications, cloud services, and legacy mainframe systems click apply for full job details More ❯

Datapower Developer , you will be working closely with the technical team on development and implementation journeys. The role is centered on enabling and securing data flows between various enterprise systems, including mobile applications, cloud services, and legacy mainframe systems. Your Responsibilities: Provide expert support and timely resolution of environmental issues related to the project, focusing on DataPower … to Python, Shell scripting, GitLab pipeline. Your Profile Essential Skills/Knowledge/Experience: Proven experience in IBM DataPower development, configuration, and troubleshooting within enterprise environments. Familiarity with mainframe systems and integration with DataPower where applicable. Good working knowledge of AWS services, particularly CloudWatch, DynamoDB, and Lambda, including monitoring, troubleshooting, and optimisation. Excellent verbal and written communication skills to More ❯

Full Stack Developer – Hybrid - London Do you love building both front-end and back-end systems? Are you comfortable switching between React components and Python? Have you worked in Cloud platforms (GCP, AWS, or Azure) ? Do you want to work on data-heavy, cloud-native microservices and modern web apps? If that sounds like you — keep reading About the … a successful Public Affairs company are looking for a Mid-Level Software Engineer to join their talented engineering team to work on a mix of greenfield development and legacy systems. You’ll get to make an impact from day one shaping architecture and writing clean code. What You’ll Do: You’ll rebuild a legacy user More ❯

Full Stack Developer – Hybrid - London Do you love building both front-end and back-end systems? Are you comfortable switching between React components and Python? Have you worked in Cloud platforms (GCP, AWS, or Azure) ? Do you want to work on data-heavy, cloud-native microservices and modern web apps? If that sounds like you — keep reading About the … a successful Public Affairs company are looking for a Mid-Level Software Engineer to join their talented engineering team to work on a mix of greenfield development and legacy systems. You’ll get to make an impact from day one shaping architecture and writing clean code. What You’ll Do: You’ll rebuild a legacy user More ❯

Full Stack Developer – Hybrid - London Do you love building both front-end and back-end systems? Are you comfortable switching between React components and Python? Have you worked in Cloud platforms (GCP, AWS, or Azure) ? Do you want to work on data-heavy, cloud-native microservices and modern web apps? If that sounds like you — keep reading About the … a successful Public Affairs company are looking for a Mid-Level Software Engineer to join their talented engineering team to work on a mix of greenfield development and legacy systems. You’ll get to make an impact from day one shaping architecture and writing clean code. What You’ll Do: You’ll rebuild a legacy user More ❯