1 to 25 of 92 Remote Legacy Systems Jobs in London

will be responsible for designing, building, and maintaining robust data infrastructure to support the organisations expanding data and analytics needs. This includes leading the migration of legacy systems to modern cloud-based platforms , managing APIs for seamless data exchange , and ensuring data quality, security, and reliability across all systems. Youll play a key role in developing and … optimising ETL pipelines , automating data workflows , and supporting integration between core business systems such as Microsoft Dynamics . Strong hands-on experience with Azure, SQL, and Python-based data engineering is essential. This is an excellent opportunity for someone who thrives in a scalable, acquisition-driven environment , enjoys solving complex data challenges, and wants to help shape the data … strategy of a dynamic, technology-focused business. What Youll Be Doing Lead and deliver data migration projects from legacy systems to modern, cloud-based environments. Design, develop, and optimise ETL pipelines and automated data workflows. Collaborate across IT and business functions to define data requirements and deliver efficient solutions. Manage and maintain data integrations and APIs for More ❯

established business in Brentford is seeking an experienced BI Developer to join their BI & Data Team as they embark on a major transformation journey, moving from legacy systems towards a modern Microsoft ecosystem built on Azure and Fabric. The team operates mostly remotely, with office collaboration up to once per week alongside the wider BI & Data team … data models for performance and reusability Supporting governance, security, and compliance best practices in a modern data platform Tooling for migration and reconciliation of data from legacy systems or acquisitions Providing technical support and hands-on data engineering across the full stack We are looking for: Strong experience as a BI Developer, Data Engineer, or similar Hands … Solid background in database technologies (SQL), reporting tools (Power BI) Excellent communication skills to work across technical and non-technical teams Experience with migration projects (e.g., moving from legacy BI to Fabric) is desirable Knowledge of governance and security within Microsoft Purview is a plus You will be rewarded with: Salary up to £60,000 depending on experience More ❯

established business in Brentford is seeking an experienced BI Developer to join their BI & Data Team as they embark on a major transformation journey, moving from legacy systems towards a modern Microsoft ecosystem built on Azure and Fabric. The team operates mostly remotely, with office collaboration up to once per week alongside the wider BI & Data team … data models for performance and reusability Supporting governance, security, and compliance best practices in a modern data platform Tooling for migration and reconciliation of data from legacy systems or acquisitions Providing technical support and hands-on data engineering across the full stack We are looking for: Strong experience as a BI Developer, Data Engineer, or similar Hands … Solid background in database technologies (SQL), reporting tools (Power BI) Excellent communication skills to work across technical and non-technical teams Experience with migration projects (e.g., moving from legacy BI to Fabric) is desirable Knowledge of governance and security within Microsoft Purview is a plus You will be rewarded with: Salary up to £60,000 depending on experience More ❯

established business in Brentford is seeking an experienced BI Developer to join their BI & Data Team as they embark on a major transformation journey, moving from legacy systems towards a modern Microsoft ecosystem built on Azure and Fabric. The team operates mostly remotely, with office collaboration up to once per week alongside the wider BI & Data team … data models for performance and reusability Supporting governance, security, and compliance best practices in a modern data platform Tooling for migration and reconciliation of data from legacy systems or acquisitions Providing technical support and hands-on data engineering across the full stack We are looking for: Strong experience as a BI Developer, Data Engineer, or similar Hands … background in database technologies (SQL), and reporting tools (Power BI) Excellent communication skills to work across technical and non-technical teams Experience with migration projects (e.g., moving from legacy BI to Fabric) is desirable Knowledge of governance and security within Microsoft Purview is a plus You will be rewarded with: Salary up to £60,000 depending on experience More ❯

established business in Brentford is seeking an experienced BI Developer to join their BI & Data Team as they embark on a major transformation journey, moving from legacy systems towards a modern Microsoft ecosystem built on Azure and Fabric. The team operates mostly remotely, with office collaboration up to once per week alongside the wider BI & Data team … data models for performance and reusability Supporting governance, security, and compliance best practices in a modern data platform Tooling for migration and reconciliation of data from legacy systems or acquisitions Providing technical support and hands-on data engineering across the full stack We are looking for: Strong experience as a BI Developer, Data Engineer, or similar Hands … background in database technologies (SQL), and reporting tools (Power BI) Excellent communication skills to work across technical and non-technical teams Experience with migration projects (e.g., moving from legacy BI to Fabric) is desirable Knowledge of governance and security within Microsoft Purview is a plus You will be rewarded with: Salary up to £60,000 depending on experience More ❯

ways of working as part of Phase 2 of this Project. Our IT Infrastructure team covers the following areas: Fully responsible for managing the technology stacks Ensuring the underlying systems and data are secure and highly protected from malicious actors Ensuring the systems are available Managing 3rd party suppliers who assist us in supporting, developing and securing the … systems Manage the technical and security risk registers and, with a risk based approach, mitigate risks to the best of our ability Embed principles of best value and money saving into all technology decisions We’ve made a significant investment in our Microsoft suite and have transitioned services to Azure. We’re also building a cloud infrastructure to support … the Organisation’s mission critical data use improvement project. Our Infrastructure Systems Manager plays a crucial role in the development, support and maintenance of these systems, implementing the tools and technology we need as well as driving the reduction of IT costs where possible. This role is responsible for: Maintenance of technical infrastructure based on Microsoft technologies Automated More ❯

contribute to strategic solutions while being part of a broader modernisation programme into a cloud and data platform focused environment. As the business moves away from legacy systems and invests in modern architecture, you’ll work at the intersection of stability and transformation — ensuring continuity in existing applications while helping shape the future tech landscape. What You … using C#, SQL, and front-end technologies like React. Support mission-critical regulatory applications as part of a collaborative, Agile feature team. Contribute to the strategic migration from legacy platforms to a cloud-based architecture using Python, Azure, and Databricks. Apply best practices in DevOps, CI/CD, and test-driven development. Participate in technical governance and architectural More ❯

contribute to strategic solutions while being part of a broader modernisation programme into a cloud and data platform focused environment. As the business moves away from legacy systems and invests in modern architecture, you’ll work at the intersection of stability and transformation — ensuring continuity in existing applications while helping shape the future tech landscape. What You … using C#, SQL, and front-end technologies like React. Support mission-critical regulatory applications as part of a collaborative, Agile feature team. Contribute to the strategic migration from legacy platforms to a cloud-based architecture using Python, Azure, and Databricks. Apply best practices in DevOps, CI/CD, and test-driven development. Participate in technical governance and architectural More ❯

alignment with our platform and the needs of our customers. MongoDB Pre-Sales Solution Architects are responsible for guiding our customers and users to design and build reliable, scalable systems using our data platform. Our team is made up of seasoned technical sales professionals, software architects, entrepreneurs, and developers who take direct responsibility for customer success, including the design … languages (e.g. Python, Node.js, SQL) and/or popular programming languages (e.g. C/C++, Java, C#) in a professional capacity Experience designing with scalable and highly available distributed systems in the cloud and on-prem Demonstrated ability to work with customers to review complex architecture of existing applications, providing guidance on how to improve by leveraging technology Excellent … with any of the major cloud providers Experience with database programming and data models Experience in data engineering or AI/ML projects Experience in transforming legacy systems and platforms into modern, scalable, and efficient technology stacks Understanding of popular sales methodologies/frameworks such as MEDDPICC/Command of the Message A MongoDB Certification What you More ❯

HM Land Registry (HMLR) are modernising the systems and services that underpin property ownership across England and Wales - some of the most valuable data in the UK economy. As a Software Developer, you'll play an important role in designing, building and supporting the digital services that help secure property rights and enable the housing market to function. Salary … work in multidisciplinary agile teams with product managers, delivery managers, testers, business analysts and user researchers. Together they design, build and maintain digital cloud services and legacy systems that power HMLR's core services. The community promotes modern engineering standards, continuous improvement and peer learning, offering opportunities to collaborate across teams, contribute to communities of practice and … built and operated across the organisation. HMLR's Developers work on a variety of projects that are central to their digital transformation. This includes rebuilding core registration and casework systems, geospatial data initiatives, developing new cloud-native services and modernising legacy applications into scalable, containerised solutions. If you would like to find out more about the role More ❯

SSRS and SSAS SSIS is very important for this position. Must be an excellent problem solver and adept writing documentation for all projects. You ideally have worked on banking systems particularly Core Banking. Responsible for the development and delivery of new systems to automate and streamline processes required by different departments. To support the internal IT department with … changes and upgrades to software platforms. To be primary contact for all technical questions relating to in-house bespoke systems and interfacing. Analysis of issues pertaining to problems or errors raised by in-house systems, i.e. CORE, SharePoint interface, Equation, Kondor, Eximbills, end of day cycle. Support Supporting budgeting and financial planning processes for Finance department, including loading … Forms with Equation system to introduce automation of processes thereby eliminating the need for duplicate entry. Utilise web services to integrate from cutting edge technology into legacy systems such as Equation. Integrate with all the systems using data abstraction and connectivity layers, i.e. ODBC, ADO.net. ?Duties Maintain knowledge of all applicable regulatory requirements including the Banks More ❯

challenging and exciting environments with our major clients in Global Media, Banking, Government, Telecoms & Utilities The role Responsible for the design, development, implementation, and troubleshooting of audio and video systems and infrastructure, focusing on both Legacy and cloud-based solutions Key responsibilities Install, test, analyse, troubleshoot and modify new Audio & Video processing equipment/solutions to achieve … driving improved technical and service performance. Design and drive processes to facilitate smooth and seamless deployment of new Audio & Video processing services. Design, develop, and implement Audio & Video processing systems and solutions for broadcast and satellite communications, ensuring compliance with industry standards and regulatory requirements. Supervise the delivery of 3rd party suppliers and contractors to ensure that delivery specifications … sharing knowledge and skills and providing mentoring support to engineers and technicians. Act as an escalation point for troubleshooting from junior engineers. Support integration projects for Legacy systems and cloud-based solutions Core skills, knowledge and experience required Audio and video processing - Understanding of audio and video processing principles Virtualisation & Cloud Computing - proficiency with virtualisation and cloud More ❯

challenging and exciting environments with our major clients in Global Media, Banking, Government, Telecoms & Utilities. The role Responsible for the design, development, implementation, and troubleshooting of audio and video systems and infrastructure, focusing on both legacy and cloud-based solutions Key responsibilities • Install, test, analyse, troubleshoot and modify new Audio & Video processing equipment/solutions to achieve … driving improved technical and service performance. • Design and drive processes to facilitate smooth and seamless deployment of new Audio & Video processing services. • Design, develop, and implement Audio & Video processing systems and solutions for broadcast and satellite communications, ensuring compliance with industry standards and regulatory requirements. • Supervise the delivery of 3rd party suppliers and contractors to ensure that delivery specifications … sharing knowledge and skills and providing mentoring support to engineers and technicians. • Act as an escalation point for troubleshooting from junior engineers. • Support integration projects for legacy systems and cloud-based solutions Core skills, knowledge and experience required Audio and video processing - Understanding of audio and video processing principles Virtualisation & Cloud Computing – proficiency with virtualisation and cloud More ❯

challenging and exciting environments with our major clients in Global Media, Banking, Government, Telecoms & Utilities. The role Responsible for the design, development, implementation, and troubleshooting of audio and video systems and infrastructure, focusing on both legacy and cloud-based solutions Key responsibilities • Install, test, analyse, troubleshoot and modify new Audio & Video processing equipment/solutions to achieve … driving improved technical and service performance. • Design and drive processes to facilitate smooth and seamless deployment of new Audio & Video processing services. • Design, develop, and implement Audio & Video processing systems and solutions for broadcast and satellite communications, ensuring compliance with industry standards and regulatory requirements. • Supervise the delivery of 3rd party suppliers and contractors to ensure that delivery specifications … sharing knowledge and skills and providing mentoring support to engineers and technicians. • Act as an escalation point for troubleshooting from junior engineers. • Support integration projects for legacy systems and cloud-based solutions Core skills, knowledge and experience required Audio and video processing - Understanding of audio and video processing principles Virtualisation & Cloud Computing – proficiency with virtualisation and cloud More ❯

Technical Business Analyst - Insurance Claims Systems Location: Hybrid – London (2 days on-site) Salary: Up to £120,000 + full package Company: Leading InsurTech Industry: Lloyd’s/London Market Insurers About the Company: Join a forward-thinking InsurTech organisation that is transforming the Lloyd’s and London Market insurance landscape. Our client works with leading insurers to deliver … complex claims transformation and implementation programmes, modernising legacy systems and improving operational efficiency across the market. They are now seeking a Technical Business Analyst to join their expanding Claims Systems practice, working at the forefront of digital transformation in insurance. Key Responsibilities: Act as the bridge between business stakeholders and technical teams throughout the claims system … improvement of claims handling processes and system performance. Skills and Experience: Proven experience as a Business Analyst or Technical Business Analyst within the insurance sector. Strong background in claims systems (such as Guidewire, Sequel Claims, Sapiens, or bespoke Lloyd’s Market platforms). Deep understanding of Lloyd’s and London Market processes, data flows, and regulatory requirements. Technical proficiency More ❯

Technical Business Analyst - Insurance Claims Systems Location: Hybrid – London (2 days on-site) Salary: Up to £120,000 + full package Company: Leading InsurTech Industry: Lloyd’s/London Market Insurers About the Company: Join a forward-thinking InsurTech organisation that is transforming the Lloyd’s and London Market insurance landscape. Our client works with leading insurers to deliver … complex claims transformation and implementation programmes, modernising legacy systems and improving operational efficiency across the market. They are now seeking a Technical Business Analyst to join their expanding Claims Systems practice, working at the forefront of digital transformation in insurance. Key Responsibilities: Act as the bridge between business stakeholders and technical teams throughout the claims system … improvement of claims handling processes and system performance. Skills and Experience: Proven experience as a Business Analyst or Technical Business Analyst within the insurance sector. Strong background in claims systems (such as Guidewire, Sequel Claims, Sapiens, or bespoke Lloyd’s Market platforms). Deep understanding of Lloyd’s and London Market processes, data flows, and regulatory requirements. Technical proficiency More ❯

people can do their best work - one built on openness, fairness, inclusion, and respect. 💻 The Role As a Senior Software Engineer , you'll help design, build, and maintain the systems that power SEG's growing technology ecosystem. You'll work across a range of digital products and platforms - from modern microservices to legacy systems in transition … in .NET Core, C#, Angular, and Blazor . Architect and develop solutions running in Azure (including AKS , App Services, and Functions). Build and integrate microservices and message-based systems using RabbitMQ . Design and optimise SQL Server databases - advanced stored procedures, indexing, tuning. Participate in code reviews , mentoring, and knowledge sharing across teams. Manage BAU requests and 3rd … line triage - owning issues within your expertise. Collaborate with product managers, business partners, and offshore teams (Mindera) to deliver against commercial goals. Simplify existing systems and deliver reusable, scalable components. Contribute to ongoing modernisation of our applications and CI/CD pipelines ( Azure DevOps , gated releases). 🧠 About You You're a hands-on engineer who thrives on solving More ❯

future platform development. Skills & Experience Proven experience as an Enterprise Architect with a focus on cyber security. Strong leadership and strategic thinking capabilities. Experience in modernising legacy systems and implementing secure, scalable architectures (e.g. microservices). Knowledge of pragmatic governance and assurance practices. Proficiency in architectural modelling languages (e.g. UML, ArchiMate). Familiarity with architectural tools and … repositories (ideally Bizzdesign or similar). Understanding of database systems and data architecture concepts. Experience with enterprise systems such as CRM, Finance, HR, and integration platforms. Strong grasp of technology and data risk management. Excellent communication and stakeholder engagement skills. Ability to influence and drive change across technical and non-technical teams. Awareness of industry trends and emerging More ❯

future platform development. Skills & Experience Proven experience as an Enterprise Architect with a focus on cyber security. Strong leadership and strategic thinking capabilities. Experience in modernising legacy systems and implementing secure, scalable architectures (e.g. microservices). Knowledge of pragmatic governance and assurance practices. Proficiency in architectural modelling languages (e.g. UML, ArchiMate). Familiarity with architectural tools and … repositories (ideally Bizzdesign or similar). Understanding of database systems and data architecture concepts. Experience with enterprise systems such as CRM, Finance, HR, and integration platforms. Strong grasp of technology and data risk management. Excellent communication and stakeholder engagement skills. Ability to influence and drive change across technical and non-technical teams. Awareness of industry trends and emerging More ❯

clusters and containerised deployments. Automate cloud provisioning, configuration, and monitoring. Ensure high standards of security, performance, and reliability across all environments. Support migration and modernisation of legacy systems into Azure cloud environments. Collaborate with development teams to streamline code integration, testing, and deployment workflows. Implement robust monitoring and alerting using tools such as Azure Monitor , Log Analytics More ❯

clusters and containerised deployments. Automate cloud provisioning, configuration, and monitoring. Ensure high standards of security, performance, and reliability across all environments. Support migration and modernisation of legacy systems into Azure cloud environments. Collaborate with development teams to streamline code integration, testing, and deployment workflows. Implement robust monitoring and alerting using tools such as Azure Monitor , Log Analytics More ❯

and AI services. Develop resilient, 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. Global Operations & Service Delivery Oversee More ❯

embedded in some of the UK’s most ambitious financial services programmes. They work closely with business and technology leaders to drive strategic change, from platform modernisation and core systems reengineering, to cloud adoption and integration overhaul. Your Role You’ll be part of a highly credible, expert-led team shaping complex solutions across the full technology stack. Whether … modernising legacy systems, enabling cloud-first strategies, or improving end-to-end integration, you’ll bring structure, clarity, and delivery alignment to everything you do. What You’ll Be Doing as a Solution Architect: Lead the design and implementation of end-to-end solutions across application, integration, and infrastructure domains Shape and steer technology change across major … You’ll Bring as a Solution Architect: You’re a credible solution architect who thrives in fast-paced, high-compliance environments. You understand the realities of Financial Services, legacy complexity, data sensitivity, and the need to balance innovation with control. Key Experience: Deep experience in Financial Services (e.g. banking, insurance, wealth, or capital markets) Proven success delivering architecture More ❯

embedded in some of the UK’s most ambitious financial services programmes. They work closely with business and technology leaders to drive strategic change, from platform modernisation and core systems reengineering, to cloud adoption and integration overhaul. Your Role You’ll be part of a highly credible, expert-led team shaping complex solutions across the full technology stack. Whether … modernising legacy systems, enabling cloud-first strategies, or improving end-to-end integration, you’ll bring structure, clarity, and delivery alignment to everything you do. What You’ll Be Doing as a Solution Architect: Lead the design and implementation of end-to-end solutions across application, integration, and infrastructure domains Shape and steer technology change across major … You’ll Bring as a Solution Architect: You’re a credible solution architect who thrives in fast-paced, high-compliance environments. You understand the realities of Financial Services, legacy complexity, data sensitivity, and the need to balance innovation with control. Key Experience: Deep experience in Financial Services (e.g. banking, insurance, wealth, or capital markets) Proven success delivering architecture More ❯

in the office eligibility to work in the UK Role Overview We are seeking a skilled Senior Developer to join a newly formed engineering team focused on removing legacy components and addressing technical debt within our Media Services products. This role will involve working closely with stakeholders to understand system requirements, designing robust replacement components, and implementing them … development (TDD) is essential, as is 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 be highly desirable. We are … looking for someone who 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 (CI/CD) AWS CodePipeline expertise More ❯