23 of 23 Contract Legacy Systems Jobs in London

team on a fully remote basis. This is an exciting opportunity to work on cutting-edge projects within the financial services sector, with a focus on high-performance backend systems and scalable microservices architecture. Role Overview: Managing a small team of offshore developers , working on the BAU stream – supporting with live issues, managing the delivery of new and legacy system BAU work. Key Responsibilities: Managing team of offshore developers Develop and enhance backend systems using C#.NET Core. Build and maintain microservices architecture. Create dynamic and responsive user interfaces using Angular 16+. Collaborate with cross-functional teams to deliver high-quality software solutions. Ensure code quality, performance optimization, and scalability. Participate in code reviews, testing, and debugging. More ❯

Demonstrable London Market software selection/delivery/integration experience Knowledge of the Insurance Policy/Claims Admin System landscape Experience of previous projects moving from legacy systems to updated versions (software/hardware/integration) and able to articulate the role(s) played Sound like you? Please get your details over to ARC IT ASAP More ❯

user journeys and workflows, ensuring integration of compliance checks. Collaborate with IT on data integration and system requirements. Support UAT, write test scripts, and assist in transitioning from legacy systems. Participate in Agile ceremonies and manage deliverables using JIRA. Key Skills & Experience: Must-have: 8+ years in the Lloyd's/London Market. Business analysis: Requirements gathering, process More ❯

system. Key Responsibilities of the Interim Procurement Officer include: Develop a contract management approach for the ERP programme, ensuring alignment of IT contracts with ERP delivery timelines Support legacy system decommissioning by reviewing contract registers and liaising with contract owners to ensure compliance Draft Gateway 2 reports across various procurement lots for review by the Procurement Lead Prepare More ❯

will take full ownership of a large-scale Windows Server migration programme. The scope includes upgrading servers currently running Windows Servers, and addressing a small number of additional legacy systems. This role requires a proven subject matter expert in Windows Server migrations who is comfortable operating across multiple environments that include a complex mix of both legacy More ❯

will take full ownership of a large-scale Windows Server migration programme. The scope includes upgrading servers currently running Windows Servers, and addressing a small number of additional legacy systems. This role requires a proven subject matter expert in Windows Server migrations who is comfortable operating across multiple environments that include a complex mix of both legacy More ❯

maintain a CSDM-compliant data strategy. You'll support the client through the go live and business adoption stage. Key Responsibilities: Be apart of the delivery of a legacy system upgrade and supporting clients through the go live stage and business adoption. Develop and implement a Common Service Data Model (CSDM)-compliant data strategy. Define and execute technology More ❯

maintain a CSDM-compliant data strategy. You'll support the client through the go live and business adoption stage. Key Responsibilities: Be apart of the delivery of a legacy system upgrade and supporting clients through the go live stage and business adoption. Develop and implement a Common Service Data Model (CSDM)-compliant data strategy. Define and execute technology More ❯

Our client, an established entity in the technology sector, is seeking a qualified Systems Accountant for a contract position, the office is based in Richmond or can be fully remote. This vital role supports a key finance transformation project, involving system migration work and ensuring data integrity. Key Responsibilities: Support the migration of financial data from a legacy system into NetSuite Reconcile opening balances and investigate discrepancies Clean, validate, and restructure historical financial data Map and align chart of accounts between old and new systems Collaborate with finance, IT, and project teams to ensure a smooth transition Provide post-migration support, including reconciliations and integrity checks Assist in process improvements and documentation during the transformation … Job Requirements: Qualified accountant (ACA, ACCA, CIMA or equivalent) Strong technical accounting knowledge and attention to detail Proven experience in system migrations, particularly finance systems Proficiency with NetSuite is essential Knowledge of Opera accounting software is a strong bonus Advanced Excel skills (lookups, pivot tables, data cleansing) Excellent communication and problem-solving abilities Behavioural Competencies: We Work Hard Accuracy More ❯

months Start Date: ASAP Overview We are seeking an experienced Inventory Migration Specialist to support a high-impact project focused on migrating legacy fibre network inventory systems to a modern, commercial off-the-shelf platform. The ideal candidate will possess strong domain knowledge of both active and passive fibre networks, along with practical experience in data mapping … This is a hands-on role requiring both technical expertise and a deep understanding of network inventory environments. Key Responsibilities: Conduct in-depth analysis of legacy inventory systems (primarily home-grown) and support the phased migration. Identify data quality issues, inconsistencies, and recommend resolution strategies. Work closely with SMEs, data owners, and legacy system specialists … and delivery of fixed project milestones within a collaborative transformation team. Required Skills & Experience: Solid experience with both active and passive fibre network assets. Prior exposure to inventory management systems — experience with Comarch is highly desirable. Strong analytical background with the ability to work with SQL and data querying tools (e.g.Toad). Familiarity with data mapping in complex network More ❯

months Start Date: ASAP Overview Our client is seeking an experienced Inventory Migration Specialist to support a high-impact project focused on migrating legacy fibre network inventory systems to a modern, commercial off-the-shelf platform. The ideal candidate will possess strong domain knowledge of both active and passive fibre networks, along with practical experience in data … This is a hands-on role requiring both technical expertise and a deep understanding of network inventory environments. Key Responsibilities: Conduct in-depth analysis of legacy inventory systems (primarily home-grown) and support the phased migration. Identify data quality issues, inconsistencies, and recommend resolution strategies. Work closely with SMEs, data owners, and legacy system specialists … and delivery of fixed project milestones within a collaborative transformation team. Required Skills & Experience: Solid experience with both active and passive fibre network assets. Prior exposure to inventory management systems — experience with Comarch is highly desirable. Strong analytical background with the ability to work with SQL and data querying tools (e.g.Toad). Familiarity with data mapping in complex network More ❯

months Start Date: ASAP Overview Our client is seeking an experienced Inventory Migration Specialist to support a high-impact project focused on migrating legacy fibre network inventory systems to a modern, commercial off-the-shelf platform. The ideal candidate will possess strong domain knowledge of both active and passive fibre networks, along with practical experience in data … This is a hands-on role requiring both technical expertise and a deep understanding of network inventory environments. Key Responsibilities: Conduct in-depth analysis of legacy inventory systems (primarily home-grown) and support the phased migration. Identify data quality issues, inconsistencies, and recommend resolution strategies. Work closely with SMEs, data owners, and legacy system specialists … and delivery of fixed project milestones within a collaborative transformation team. Required Skills & Experience: Solid experience with both active and passive fibre network assets. Prior exposure to inventory management systems — experience with Comarch is highly desirable. Strong analytical background with the ability to work with SQL and data querying tools (e.g.Toad). Familiarity with data mapping in complex network More ❯

year transformation programme across core service areas including Adult Social Care , Children's Services , and Housing . This programme is data-led and insight-driven, aiming to modernise outdated systems, improve service delivery, and foster a culture of continuous improvement. We are seeking two experienced Data Analysts to support this work as part of a dynamic internal consultancy team. … within services, working hands-on with real data challenges to inform critical decisions and reform frontline delivery. KEY RESPONSIBILITIES Cleanse, validate, and restructure complex datasets from legacy systems (e.g. Liquid Logic, NEC, Jigsaw, Academy) Create clear, visual dashboards and performance reports using Power BI Collaborate across housing, social care and children's services to support redesign of … frontline services Link and reconcile data from disconnected systems to provide accurate, meaningful insights Coach non-technical staff to build internal understanding and capability in data usage Support service leaders in making informed decisions around resources, costs, and delivery models Essential Skills & Experience MUST have recent experience in Local Government or Council settings (Experience with public sector consultancies working More ❯

Carefully consider alternative options, implications, and risks of decisions. Experience · Experience of using Power BI, Power Query, Power Automate and the Dataverse are fundamental. · Creating new and improving current systems/processes to improve productivity using modelling tools. · Planning and monitoring. Technical · This role requires you to have vast technological experience and knowledge. You must be familiar with essential … office tools, modelling tools, and IT systems to be a competent and hands-on analyst. You will be required to undertake a test as part of the interview process. Behaviours · Changing and improving - Seek out opportunities to create effective change and suggest innovative ideas for improvement. Review ways of working, including seeking and providing feedback. · Communicating and influencing - Communicate … Carefully consider alternative options, implications, and risks of decisions. Experience · Experience of using Power BI, Power Query, Power Automate and the Dataverse are fundamental. · Creating new and improving current systems/processes to improve productivity using modelling tools. · Planning and monitoring. Technical · This role requires you to have vast technological experience and knowledge. You must be familiar with essential More ❯

Lambda Triggers Hybrid London 1-2 days a week £500-600 (Outside IR35) The reason they're hiring now, they have a client that is all on a legacy system, on-prem platform, and they want to build out their AWS platform. They want to do a High-level architecture design to take to the low-level design. More ❯

Triggers Hybrid London 1-2 days a week £(Apply online only) (Outside IR35) The reason they're hiring now, they have a client that is all on a legacy system, on-prem platform, and they want to build out their AWS platform. They want to do a High-level architecture design to take to the low-level design. More ❯

will take full ownership of a large-scale Windows Server migration programme. The scope includes upgrading servers currently running Windows Servers, and addressing a small number of additional legacy systems. This role requires a proven subject matter expert in Windows Server migrations who is comfortable operating across multiple environments that include a complex mix of both legacy More ❯

will take full ownership of a large-scale Windows Server migration programme. The scope includes upgrading servers currently running Windows Servers, and addressing a small number of additional legacy systems. This role requires a proven subject matter expert in Windows Server migrations who is comfortable operating across multiple environments that include a complex mix of both legacy More ❯

ideal candidate will have deep expertise in Delphi (especially versions like Delphi 7, XE, or later), a strong understanding of object-oriented programming, and experience integrating legacy systems with modern architectures. Key Responsibilities: Design, develop, test, and maintain software applications using Delphi. Analyze legacy Delphi code and recommend enhancements or modernization strategies. Collaborate with cross More ❯

occasional travel Sanderson Recruitment is partnering with a leading retail brand to recruit an experienced Scrum Master to support two engineering teams working on a transformation of a legacy Finance system. This is a critical project that requires someone who is hands-on, adaptable, and capable of guiding teams through Agile ways of working in a fast-paced … as a Scrum Master in a complex Agile environment Strong understanding of both Scrum and Kanban methodologies Experience working on large-scale transformation projects, ideally involving legacy systems Retail industry experience is essential Pragmatic, flexible approach with the ability to wear multiple hats when needed Reasonable Adjustments: Respect and equality are core values to us. We are More ❯

can work remote with ad hoc travel around the South West London area. Key Responsibilities of the Linux Engineer Maintain, monitor, and troubleshoot legacy Linux (Red Hat) systems to ensure optimal uptime and compliance. Support and administer MySQL and MongoDB databases on Linux platforms. Provide occasional support and integration with Windows systems as needed. Ensure systems … upgrade projects. Contribute to documentation and operational procedures to support system reliability and auditing. Key Skills & Experience required from the Linux Engineer Proven experience as a Linux Engineer or Systems Administrator with a strong focus on Red Hat Enterprise Linux (RHEL) . Solid understanding of MySQL and MongoDB administration in a Linux environment. Basic to intermediate experience with Windows … systems . Strong networking knowledge, including DNS, DHCP, firewalls, and general network troubleshooting. Experience with system compliance, patching, and hardening best practices. Ability to work autonomously, manage priorities, and collaborate effectively across technical and non-technical teams. Outside of IR35 Financial background checks The Linux Engineer can work remote with ad hoc travel around the South West London area. More ❯

can work remote with ad hoc travel around the South West London area. Key Responsibilities of the Linux Engineer Maintain, monitor, and troubleshoot legacy Linux (Red Hat) systems to ensure optimal uptime and compliance. Support and administer MySQL and MongoDB databases on Linux platforms. Provide occasional support and integration with Windows systems as needed. Ensure systems … upgrade projects. Contribute to documentation and operational procedures to support system reliability and auditing. Key Skills & Experience required from the Linux Engineer Proven experience as a Linux Engineer or Systems Administrator with a strong focus on Red Hat Enterprise Linux (RHEL) . Solid understanding of MySQL and MongoDB administration in a Linux environment. Basic to intermediate experience with Windows … systems . Strong networking knowledge, including DNS, DHCP, firewalls, and general network troubleshooting. Experience with system compliance, patching, and hardening best practices. Ability to work autonomously, manage priorities, and collaborate effectively across technical and non-technical teams. Outside of IR35 Financial background checks The Linux Engineer can work remote with ad hoc travel around the South West London area. More ❯

can work remote with ad hoc travel around the South West London area. Key Responsibilities of the Linux Engineer Maintain, monitor, and troubleshoot legacy Linux (Red Hat) systems to ensure optimal uptime and compliance. Support and administer MySQL and MongoDB databases on Linux platforms. Provide occasional support and integration with Windows systems as needed. Ensure systems … upgrade projects. Contribute to documentation and operational procedures to support system reliability and auditing. Key Skills & Experience required from the Linux Engineer Proven experience as a Linux Engineer or Systems Administrator with a strong focus on Red Hat Enterprise Linux (RHEL) . Solid understanding of MySQL and MongoDB administration in a Linux environment. Basic to intermediate experience with Windows … systems . Strong networking knowledge, including DNS, DHCP, firewalls, and general network troubleshooting. Experience with system compliance, patching, and hardening best practices. Ability to work autonomously, manage priorities, and collaborate effectively across technical and non-technical teams. Outside of IR35 Financial background checks The Linux Engineer can work remote with ad hoc travel around the South West London area. More ❯