101 to 125 of 191 Legacy Systems Jobs in London

in collaboration with the teams. 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 modelling, ingestion, storage, streaming, and More ❯

in collaboration with the teams. 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 modelling, ingestion, storage, streaming, and More ❯

target operating model (TOM) and associated Capability Architecture. This position will also have a focus on aligning business processes and capabilities to enable the replacement of legacy systems and support a wider business transformation, defining architectural principles and supporting the business case for the ERM/ERP programme. For this role you must have experience in providing More ❯

target operating model (TOM) and associated Capability Architecture. This position will also have a focus on aligning business processes and capabilities to enable the replacement of legacy systems and support a wider business transformation, defining architectural principles and supporting the business case for the ERM/ERP programme. For this role you must have experience in providing More ❯

target operating model (TOM) and associated Capability Architecture. This position will also have a focus on aligning business processes and capabilities to enable the replacement of legacy systems and support a wider business transformation, defining architectural principles and supporting the business case for the ERM/ERP programme. For this role you must have experience in providing More ❯

target operating model (TOM) and associated Capability Architecture. This position will also have a focus on aligning business processes and capabilities to enable the replacement of legacy systems and support a wider business transformation, defining architectural principles and supporting the business case for the ERM/ERP programme. For this role you must have experience in providing More ❯

warehouses, and lakes Work with engineering, analytics, and business teams to align on data needs Define best practices for data governance, quality, and security Help modernize legacy systems and move them to the cloud Stay up to date on new tools, trends, and technologies What We’re Looking For: 7+ years in data architecture or related roles More ❯

financial services. The successful candidate will take ownership of key client relationships, working closely with senior stakeholders to deliver transformation programmes that improve operational efficiency, reduce legacy systems, and enhance customer engagement. This is a unique opportunity to join a growing practice backed by a global technology group, with direct access to senior leadership and the chance More ❯

financial services. The successful candidate will take ownership of key client relationships, working closely with senior stakeholders to deliver transformation programmes that improve operational efficiency, reduce legacy systems, and enhance customer engagement. This is a unique opportunity to join a growing practice backed by a global technology group, with direct access to senior leadership and the chance More ❯

Architect, you will: Partner with tier-one clients across multiple sectors to bring their cloud strategy to life. Design and deliver transformative cloud solutions, from migrating legacy systems to building scalable, cloud-native applications. Drive continuous learning and certification across cloud technologies. Champion cloud innovation, advising clients on how cloud computing can transform their operations. Key Responsibilities More ❯

Architect, you will: Partner with tier-one clients across multiple sectors to bring their cloud strategy to life. Design and deliver transformative cloud solutions, from migrating legacy systems to building scalable, cloud-native applications. Drive continuous learning and certification across cloud technologies. Champion cloud innovation, advising clients on how cloud computing can transform their operations. Key Responsibilities More ❯

objectives, progress, and changes. Prepare and deliver stakeholder presentations and communications plans. Identify, document, and manage project risks, dependencies, and issues. Ensure timely identification & mitigation of blockers (e.g., legacy system decommissioning, resource constraints, vendor dependencies) Lead change management activities, including CAB submissions, user communications, and training. Develop user guides and documentation to support end-user readiness and adoption. More ❯

objectives, progress, and changes. Prepare and deliver stakeholder presentations and communications plans. Identify, document, and manage project risks, dependencies, and issues. Ensure timely identification & mitigation of blockers (e.g., legacy system decommissioning, resource constraints, vendor dependencies) Lead change management activities, including CAB submissions, user communications, and training. Develop user guides and documentation to support end-user readiness and adoption. More ❯

runs on physical industries like energy, logistics, manufacturing. These sectors are essential to our economy and daily lives, yet they are held back by inefficiencies, fragile legacy systems, and decades-old ways of working. This is not just a business problem; it is a societal one. When grids fail, supply chains stall, or factories falter, entire economies … providing coaching, feedback, and career growth opportunities. Own delivery of technically complex, high-impact projects, ensuring quality and scalability while balancing trade-offs under pressure. Contribute to architecture and systems design across multiple product areas, bringing clarity in ambiguous situations. Write and ship high-quality, efficient, and reliable code that is extendible, scalable, and observable. You know how to … You either have professional experience using LLMs or have enthusiastically experimented in your own time. Industry experience with LLM toolchains and ecosystems (e.g. libraries like Langchain, observability tooling, RAG systems, etc.) is a plus. You can work closely with a Product Manager to understand customer requirements, build a vision for your team, and turn that into reliable systems More ❯

runs on physical industries like energy, logistics, manufacturing. These sectors are essential to our economy and daily lives, yet they are held back by inefficiencies, fragile legacy systems, and decades-old ways of working. This is not just a business problem; it is a societal one. When grids fail, supply chains stall, or factories falter, entire economies … providing coaching, feedback, and career growth opportunities. Own delivery of technically complex, high-impact projects, ensuring quality and scalability while balancing trade-offs under pressure. Contribute to architecture and systems design across multiple product areas, bringing clarity in ambiguous situations. Write and ship high-quality, efficient, and reliable code that is extendible, scalable, and observable. You know how to … You either have professional experience using LLMs or have enthusiastically experimented in your own time. Industry experience with LLM toolchains and ecosystems (e.g. libraries like Langchain, observability tooling, RAG systems, etc.) is a plus. You can work closely with a Product Manager to understand customer requirements, build a vision for your team, and turn that into reliable systems More ❯

Senior Fullstack Engineer (PHP/Laravel) – Remote The Opportunity Seeking for a Senior Fullstack Engineer with a passion for modernizing legacy systems! This is your chance to play a key role in revamping a mission-critical platform for a market-leading SME. This project is a full-scale modernization of their core systems, with a strong More ❯

Senior Fullstack Engineer (PHP/Laravel) – Remote The Opportunity Seeking for a Senior Fullstack Engineer with a passion for modernizing legacy systems! This is your chance to play a key role in revamping a mission-critical platform for a market-leading SME. This project is a full-scale modernization of their core systems, with a strong More ❯

Senior Fullstack Engineer (PHP/Laravel) – Remote The Opportunity Seeking for a Senior Fullstack Engineer with a passion for modernizing legacy systems! This is your chance to play a key role in revamping a mission-critical platform for a market-leading SME. This project is a full-scale modernization of their core systems, with a strong More ❯

Senior Fullstack Engineer (PHP/Laravel) – Remote The Opportunity Seeking for a Senior Fullstack Engineer with a passion for modernizing legacy systems! This is your chance to play a key role in revamping a mission-critical platform for a market-leading SME. This project is a full-scale modernization of their core systems, with a strong More ❯

Senior Fullstack Engineer (PHP/Laravel) – Remote The Opportunity Seeking for a Senior Fullstack Engineer with a passion for modernizing legacy systems! This is your chance to play a key role in revamping a mission-critical platform for a market-leading SME. This project is a full-scale modernization of their core systems, with a strong More ❯

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 role sits at the heart of a multi-billion-pound … shape the strategy and tools 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 systems into modern … local government, digital services, or infrastructure programmes) . Experience managing complex digital or data-driven products. Strong background in stakeholder alignment across multiple organisations. Comfortable working with both technical systems and non-technical users. Understanding of asset data, GIS, or large-scale programme systems. Agile mindset with the ability to manage change and modernisation. What’s on Offer More ❯

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 role sits at the heart of a multi-billion-pound … shape the strategy and tools 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 systems into modern … local government, digital services, or infrastructure programmes) . Experience managing complex digital or data-driven products. Strong background in stakeholder alignment across multiple organisations. Comfortable working with both technical systems and non-technical users. Understanding of asset data, GIS, or large-scale programme systems. Agile mindset with the ability to manage change and modernisation. What’s on Offer More ❯

Patient journeys and Staff journeys Excellent communication skills Exceptional Stakeholder Management skills Flexible approach towards onsite working (minimum 3 days per week) Nice to have: Working knowledge of CRM systems and ability to refine requirements (ie MS Dynamics) Experience of working on Programmes relating to legacy systems, mapping out what to keep etc Experience of working More ❯

Patient journeys and Staff journeys Excellent communication skills Exceptional Stakeholder Management skills Flexible approach towards onsite working (minimum 3 days per week) Nice to have: Working knowledge of CRM systems and ability to refine requirements (ie MS Dynamics) Experience of working on Programmes relating to legacy systems, mapping out what to keep etc Experience of working More ❯

multiple global sites. Deliver high-quality technical support and solutions using Microsoft cloud-based services (Azure, M365, Intune). Collaborate with cross-functional teams to modernize legacy systems and consolidate IT environments. Act as a key contact for European technology operations, ensuring smooth service delivery and innovation. What you get from this.... Fully Remote – Work from anywhere More ❯