26 to 39 of 39 Legacy Systems Jobs in the City of London

The platform acts as a “man in the middle” solution, empowering users with flexible scheduling , cached package delivery , and a consistent, user-friendly experience - solving the challenges of legacy System Center deployments and clunky update processes. With rich telemetry, direct user engagement, and a modern interface, WSM is redefining how enterprise device management should feel. 💼 The Role This More ❯

The platform acts as a “man in the middle” solution, empowering users with flexible scheduling , cached package delivery , and a consistent, user-friendly experience - solving the challenges of legacy System Center deployments and clunky update processes. With rich telemetry, direct user engagement, and a modern interface, WSM is redefining how enterprise device management should feel. 💼 The Role This More ❯

infrastructure practices across Europe and empowering teams to deliver quality software at speed. Who We Are 🐶 IVC Evidensia is undergoing a major digital transformation. From modernising legacy systems to building cloud-native platforms, we’re laying the technical foundations to support over 2,500 veterinary practices in 20 countries. The Role 💡 As Platform Engineering Manager, you’ll More ❯

delivering complex IT transformation programmes in large, global organisations. Strong track record of mainframe modernisation , ideally involving BlueAge or similar technologies – very desirable . Experience migrating legacy systems to public cloud environments – desirable . Demonstrated ability to manage multi-vendor delivery models and complex stakeholder landscapes. Experience in the reinsurance or insurance sector , ideally with exposure to More ❯

experience delivering complex IT transformation programmes in large, global organisations. Strong track record of mainframe modernisation , ideally involving BlueAge or similar technologies – very desirable. Experience migrating legacy systems to public cloud environments – desirable. Demonstrated ability to manage multi-vendor delivery models and complex stakeholder landscapes. Experience in the reinsurance or insurance sector , ideally with exposure to broking More ❯

security, and resilience of a mission-critical network spanning over 200 sites including stations, depots, offices, and data centres. As the business completes its transition from legacy systems to a modern Fortinet SD-WAN infrastructure, this position offers the chance to shape the future of connectivity across the network. You ll work closely with the Head of More ❯

policy lifecycle, and insurance data models. Key Responsibilities: Data Migration & Integration Lead end-to-end data migration projects for new broker clients, ensuring accuracy, consistency, and completeness. Analyse legacy broking system data structures (e.g. Acturis, Open GI, Applied Epic, SSP, TAM, etc.) and map them to Recorder’s data model. Define transformation logic and reconciliation procedures to validate … reporting workflows. Essential Experience: 5+ years in data analysis, business analysis, or migration roles — ideally within insurance or broking software. Proven experience managing broking system data migrations from legacy platforms (Acturis, Open GI, SSP, Applied, TAM, etc.). Strong SQL skills for data extraction, transformation, validation, and reconciliation. Experience with BI/reporting tools such as Power BI More ❯

policy lifecycle, and insurance data models. Key Responsibilities: Data Migration & Integration Lead end-to-end data migration projects for new broker clients, ensuring accuracy, consistency, and completeness. Analyse legacy broking system data structures (e.g. Acturis, Open GI, Applied Epic, SSP, TAM, etc.) and map them to Recorder’s data model. Define transformation logic and reconciliation procedures to validate … reporting workflows. Essential Experience: 5+ years in data analysis, business analysis, or migration roles — ideally within insurance or broking software. Proven experience managing broking system data migrations from legacy platforms (Acturis, Open GI, SSP, Applied, TAM, etc.). Strong SQL skills for data extraction, transformation, validation, and reconciliation. Experience with BI/reporting tools such as Power BI More ❯

tools to allow highly automated migration or integration between the PTP (Post Trade Processing) platform and legacy internal and external systems. You'll be working on Greenfield systems, using a range of technology, you will be granted a great deal of autonomy across the full development lifecycle, influencing key technical decisions and will have the opportunity to More ❯

adaptable Lead Engineer, with experience working across the Javascript and PHP stack to help lead the team and deliver new features to our AtlasNXT platform while supporting our legacy systems. You'll work across a variety of projects, contributing to the stability, scalability, and reliability of our products. Key Responsibilities Leading the planning and delivery of roadmap features … a technical leadership role Strong expertise in , React/React Native, and PHP across backend, frontend, and mobile development Proven ability to design and scale service-oriented, event-driven systems Experience with CI/CD pipelines, automated testing, and infrastructure as code (e.g. Terraform) Hands-on knowledge of containerisation (Docker, Kubernetes) and cloud platforms (AWS, GCP or Azure) Skilled … in cross-functional collaboration and stakeholder communication Strong analytical skills with a proactive, problem-solving mindset Desirable Experience in high-availability systems, cybersecurity frameworks (ISO, SOC), or Elixir development Background in fast-paced, start-up or scale-up environments Interest in stepping into or growing towards an Engineering Manager role Benefits This role is perfect for someone who thrives 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 ❯

that is consolidating acquired data centres, innovating service models, and scaling rapidly. You’ll lead the harmonisation of different operating models into a unified, scalable platform—creating both strategic systems and people-first solutions. Your Impact: Operational Leadership: Redesign and optimise operations across multiple business units/data centres, ensuring scalability, consistency, and resilience as the company expands both …/end-to-end facility operations; can assess staffing models, workflow tools, SLA management, and vendor relationships. Track Record: Success at unifying disparate legacy operations into cohesive systems; experience with greenfield and brownfield assets is highly valued. Leadership: Natural team builder with strong people and change management skills—known for bringing diverse groups together and inspiring followership. More ❯

that is consolidating acquired data centres, innovating service models, and scaling rapidly. You’ll lead the harmonisation of different operating models into a unified, scalable platform—creating both strategic systems and people-first solutions. Your Impact: Operational Leadership: Redesign and optimise operations across multiple business units/data centres, ensuring scalability, consistency, and resilience as the company expands both …/end-to-end facility operations; can assess staffing models, workflow tools, SLA management, and vendor relationships. Track Record: Success at unifying disparate legacy operations into cohesive systems; experience with greenfield and brownfield assets is highly valued. Leadership: Natural team builder with strong people and change management skills—known for bringing diverse groups together and inspiring followership. More ❯