251 to 275 of 388 Legacy Systems Jobs in the UK

We Are: We're a fast-growing digital consultancy working on large-scale platform transformation projects for a variety of successful clients. We help organisations replace legacy systems and connect siloed platforms through scalable architecture and integrated solutions. Our focus is delivering real commercial outcomes through smart system design, data clarity, and technical precision. Who We're … for a Solution Architect with strong experience working for a CRM partner or consultancy. You'll lead the technical design and architecture for post-sale transformation projects involving multiple systems, integrations, and stakeholders. You'll run discovery workshops, define data flows and architecture, and create documentation that supports delivery teams across CRM, marketing, operations, and finance ecosystems. This is More ❯

based UK office and international locations where required The Role: Lead the rollout of a new Shopify-based digital commerce platform across 45+ regional websites, replacing legacy systems such as Magento and CommerceTools Manage end-to-end delivery of digital product initiatives across EMEA, with a focus on scalability, localisation, and operational efficiency Champion best-in-class … programme on time and to specification Support and enable regional teams to take ownership of local platforms, including delivery of training and documentation Ensure integration with ERP and backend systems is delivered to the highest standard Use data and analytics to drive decision-making and continuous platform improvement Report directly into the Senior Director of Digital Commerce, EMEA and More ❯

based UK office and international locations where required The Role: Lead the rollout of a new Shopify-based digital commerce platform across 45+ regional websites, replacing legacy systems such as Magento and CommerceTools Manage end-to-end delivery of digital product initiatives across EMEA, with a focus on scalability, localisation, and operational efficiency Champion best-in-class … programme on time and to specification Support and enable regional teams to take ownership of local platforms, including delivery of training and documentation Ensure integration with ERP and backend systems is delivered to the highest standard Use data and analytics to drive decision-making and continuous platform improvement Report directly into the Senior Director of Digital Commerce, EMEA and More ❯

and develop junior engineers in software engineering excellence Facilitate learning around lifecycle artefacts, DO-178C compliance, and technical reasoning Promote continuous improvement and peer-driven knowledge exchange Collaborate with systems, hardware and firmware teams to ensure coherent integration Act as liaison between development teams and project leadership Working with the Chief Software Engineer and System Design Authority, own the … Electronic Warfare or Future Combat Air platforms, integration, and mission context Demonstrated ability to mentor and coach engineers, with a focus on capability uplift Familiarity with legacy systems, export controls, interoperability, and long-term product evolution This is not an exhaustive list, and we are keen to hear from you even if you might not have experience More ❯

s a level playing field that gives small businesses with a fighting chance against the giants of the high street. We're here because we see banks and legacy service providers making things harder for them. We don't think the best technology or the best service should be reserved for those with the biggest headquarters. We're … challenge constructively and navigate sensitive people topics with empathy and integrity. A hands-on, builder's mindset, comfortable creating new approaches, iterating quickly, and operating without legacy systems or heavy process. The Perks We trust you, so we offer flexible working hours, as long it suits both you and your team Physical and mental health support through More ❯

Cutover Manager – EPR Implementation We’re seeking an experienced Cutover Manager to lead the transition from legacy systems to EPR go-live. You’ll be responsible for delivering a comprehensive cutover plan , ensuring all readiness activities are in place, and driving a smooth, coordinated go-live in a complex healthcare environment. Key Requirements: Proven track record in More ❯

stack from the ground up. This isn't a plug-and-play dashboarding role. This is hands-on transformation work. They're mid-project, moving from legacy systems into Snowflake . SIGMA is being rolled out as the new reporting tool. What they need is someone who can translate messy data into clean, usable insights - and build More ❯

governance processes Collaborate with technology and business teams to build scalable data architecture Leverage AI to drive speed and cost efficiency Key work: Migrate procedures from legacy systems such as Lotus Notes to Confluence and SharePoint Build automated approval workflows Create a centralised trader mandate database with appropriate controls Automate the Supervisory Sign Off process and integrate More ❯

governance processes Collaborate with technology and business teams to build scalable data architecture Leverage AI to drive speed and cost efficiency Key work: Migrate procedures from legacy systems such as Lotus Notes to Confluence and SharePoint Build automated approval workflows Create a centralised trader mandate database with appropriate controls Automate the Supervisory Sign Off process and integrate More ❯

kept current. Implementation of work in accordance with policies and controls and are actively managing risks. . Digital transformation/change projects, programmes and initiatives, modernising legacy systems new and enhanced digital solutions to enable customers, clients and colleagues. . Management of the technology team includes hiring, training, mentoring, and setting and achieving team goals and ensuring More ❯

deliver operational excellence while continuously improving how we support our colleagues and customers through technology. What will I be doing? Modernising Technology : Lead the transformation of legacy systems, embracing cloud, AI, and automation to drive efficiency and performance. Operational Excellence : Oversee 1st to 3rd line support, infrastructure services, telephony and end-user computing (EUC) to ensure seamless More ❯

scale C++ codebase. Implement new game variants and features in collaboration with game designers, ensuring accurate rulesets, fair play, and seamless integration into the platform. Modernize legacy systems by designing modular, service-oriented components with clean APIs, introducing gRPC-based interfaces where appropriate. Improve performance and scalability of the game engine and supporting systems, with attention … of game mechanics, including betting structures, state synchronization, and tournament logic. Experience with multiplayer poker game logic and tournament structures is a strong plus. Proven experience working with legacy codebases and incrementally refactoring toward modern architectures. Comfortable with multi-threaded development, performance tuning, and memory management. Experience designing or consuming service-oriented APIs (e.g., gRPC, REST). Familiarity More ❯

objects, fields, workflows, and other platform features. Interface with internal and external technical support personnel. Investigate, research, and implement new technologies and interfaces. Work on integrating Salesforce with other systems, ensuring seamless data flow and functionality across different platforms. Perform unit testing on developed solutions to identify and fix any issues. Collaborate with quality assurance teams when applicable. Track … designs and utilize existing design patterns that satisfy system needs that are sustainable now and into the future. Review and analyze user requests and other information, and design appropriate systems that align with strategic direction. Prepare all required effort documentation for review by organizational unit management (and clients, if appropriate). Prepare project plans that include resource requirement projections. … any issues or bugs that arise, utilizing debugging tools and techniques to identify and resolve problems in the Salesforce environment. Proactively monitor and support all production applications/information systems from both hardware and software perspectives for both current efficiencies and improvement. Engage in discussions with business analysts, end-users, and other team members to clarify requirements, address questions More ❯

the technical implementation of SAP S/4HANA Transportation Management System (TMS). This role requires deep expertise in SAP landscapes, including integration with legacy SAP ERP systems and other ERP platforms such as Microsoft Axapta (Dynamics AX). The ideal candidate will have a proven track record of managing complex, cross-functional projects, working with system … support. Define and oversee the solution architecture, ensuring alignment with enterprise standards and business requirements. Manage integration strategies between SAP S/4HANA and legacy SAP ERP systems, as well as other ERPs including Microsoft Axapta. Collaborate with system integrators, internal IT teams, and business stakeholders to ensure successful implementation. Develop and maintain detailed project plans, budgets … S/4HANA TMS and SAP ERP systems. Proven experience in solution architecture, especially in transportation and logistics domains. Deep understanding of integration methodologies between SAP and non-SAP systems (e.g., Microsoft Axapta). Experience working with system integrators and managing vendor relationships. Strong leadership, communication, and stakeholder management skills. Ability to work in a fast-paced, global environment More ❯

practice and matter management system. You will also collaborate across functions to ensure GLD aligns with the Shared Services for Government strategy, by replacing and transforming back-office IT systems that are reaching the end of their lifecycle. Why should you work with us? The Directorate's culture of autonomy, mastery, and purpose ensures that individuals are empowered to … lead the delivery of GLD's replacement legal case management system, currently in its Alpha stage, with the first phase to mitigate risks associated with replacing legacy systems seamlessly. This is an exclusive opportunity to lead the Digital and Data function for a smaller department ahead of larger future opportunities. It is particularly suitable for individuals aiming … for Chief Digital Information Officer roles. Key Responsibilities Leading the Digital and Data function to realize GLD's strategic objectives through effective use of digital technologies. Delivering digital systems, including Legal Practice Management and enterprise development systems. Maintaining industry ISO certifications and cyber security accreditations, reporting to Departmental Boards on security standards. Managing a team of 6 Digital, Data More ❯

practice and matter management system. You will also collaborate across functions to ensure GLD aligns with the Shared Services for Government strategy, by replacing and transforming back-office IT systems that are reaching the end of their lifecycle. Why should you work with us? The Directorate's culture of autonomy, mastery, and purpose ensures that individuals are empowered to … lead the delivery of GLD's replacement legal case management system, currently in its Alpha stage, with the first phase to mitigate risks associated with replacing legacy systems seamlessly. This is an exclusive opportunity to lead the Digital and Data function for a smaller department ahead of larger future opportunities. It is particularly suitable for individuals aiming … for Chief Digital Information Officer roles. Key Responsibilities Leading the Digital and Data function to realize GLD's strategic objectives through effective use of digital technologies. Delivering digital systems, including Legal Practice Management and enterprise development systems. Maintaining industry ISO certifications and cyber security accreditations, reporting to Departmental Boards on security standards. Managing a team of 6 Digital, Data More ❯

practice and matter management system. You will also collaborate across functions to ensure GLD aligns with the Shared Services for Government strategy, by replacing and transforming back-office IT systems that are reaching the end of their lifecycle. Why should you work with us? The Directorate's culture of autonomy, mastery, and purpose ensures that individuals are empowered to … lead the delivery of GLD's replacement legal case management system, currently in its Alpha stage, with the first phase to mitigate risks associated with replacing legacy systems seamlessly. This is an exclusive opportunity to lead the Digital and Data function for a smaller department ahead of larger future opportunities. It is particularly suitable for individuals aiming … for Chief Digital Information Officer roles. Key Responsibilities Leading the Digital and Data function to realize GLD's strategic objectives through effective use of digital technologies. Delivering digital systems, including Legal Practice Management and enterprise development systems. Maintaining industry ISO certifications and cyber security accreditations, reporting to Departmental Boards on security standards. Managing a team of 6 Digital, Data More ❯

practice and matter management system. You will also collaborate across functions to ensure GLD aligns with the Shared Services for Government strategy, by replacing and transforming back-office IT systems that are reaching the end of their lifecycle. Why should you work with us? The Directorate's culture of autonomy, mastery, and purpose ensures that individuals are empowered to … lead the delivery of GLD's replacement legal case management system, currently in its Alpha stage, with the first phase to mitigate risks associated with replacing legacy systems seamlessly. This is an exclusive opportunity to lead the Digital and Data function for a smaller department ahead of larger future opportunities. It is particularly suitable for individuals aiming … for Chief Digital Information Officer roles. Key Responsibilities Leading the Digital and Data function to realize GLD's strategic objectives through effective use of digital technologies. Delivering digital systems, including Legal Practice Management and enterprise development systems. Maintaining industry ISO certifications and cyber security accreditations, reporting to Departmental Boards on security standards. Managing a team of 6 Digital, Data More ❯

practice and matter management system. You will also collaborate across functions to ensure GLD aligns with the Shared Services for Government strategy, by replacing and transforming back-office IT systems that are reaching the end of their lifecycle. Why should you work with us? The Directorate's culture of autonomy, mastery, and purpose ensures that individuals are empowered to … lead the delivery of GLD's replacement legal case management system, currently in its Alpha stage, with the first phase to mitigate risks associated with replacing legacy systems seamlessly. This is an exclusive opportunity to lead the Digital and Data function for a smaller department ahead of larger future opportunities. It is particularly suitable for individuals aiming … for Chief Digital Information Officer roles. Key Responsibilities Leading the Digital and Data function to realize GLD's strategic objectives through effective use of digital technologies. Delivering digital systems, including Legal Practice Management and enterprise development systems. Maintaining industry ISO certifications and cyber security accreditations, reporting to Departmental Boards on security standards. Managing a team of 6 Digital, Data More ❯

tooling, and architecture. Take ownership of code quality within the team - reviewing pull requests, mentoring peers, and ensuring best practices are followed. Work with and improve legacy systems, ensuring they remain stable, maintainable, and aligned with evolving business needs, while contributing to the development of new features and services. Write clear, maintainable, and well-documented code that … aligns with team and organisational standards. Provide out-of-hours support, when necessary, particularly when working on critical systems that require high availability. More ❯

Develop a deep understanding of the business context and the systems that make up the platform, and use that insight to build and evolve secure, scalable, and resilient services. Work closely with fellow team members - including SREs, QA leads, and automation engineers - to ensure platform reliability and maturity. Work closely with delivery leads across delivery teams to define and … teams by removing friction, enabling flow, and providing architectural clarity. Enhance developer experience through better tooling, CI/CD pipelines, and streamlined processes. Modernise and stabilise legacy systems that are critical to the business. Lead initiatives around authentication, observability, monitoring, and infrastructure as code (Terraform). Drive standardisation across backend services and APIs to improve consistency and More ❯

a day to day basis. Be a trusted and respected leader. Building and running a highly effective team that delivers customer outcomes and develops the team and individuals. Introduce systems, processes and experience to improve delivery output. Support business development initiatives and produce compelling consultancy propositions for public sector opportunities. Draw on your sector network and take responsibility for … a day to day basis. Be a trusted and respected leader. Building and running a highly effective team that delivers customer outcomes and develops the team and individuals. Introduce systems, processes and experience to improve delivery output. Support business development initiatives and produce compelling consultancy propositions for public sector opportunities. Draw on your sector network and take responsibility for … Infrastructure (CNI), ideally across energy generation, utilities, or similar regulated sectors. Strong understanding of Operational Technology (OT) environments, with hands-on experience in securing and modernising legacy systems, including DCS, SCADA, and ICS, aligned to NCSC CAF, IEC 62443, and NIST 800-82. Direct experience supporting Ofgem regulatory reporting and compliance, including preparation of ISSA returns More ❯

research that shape product and marketing decisions. Partner with Product, Design, Data, Engineering, and Marketing to embed the customer voice into strategy and execution. Overhaul and elevate a legacy team through hiring, mentorship, and organisational change. Establish scalable frameworks, processes, and tools to maximise research effectiveness and influence. Act as a trusted advisor to senior stakeholders, influencing decisions … change, and align stakeholders across functions. Experience partnering closely with Product, Marketing, and Design teams to deliver customer-centric outcomes. Resilient and resourceful: able to navigate legacy systems and inspire transformation. Demonstrated success managing managers and/or senior ICs within high-performing teams. Skilled in storytelling, data synthesis, and presenting clear, compelling insights to senior leadership. More ❯

research that shape product and marketing decisions. Partner with Product, Design, Data, Engineering, and Marketing to embed the customer voice into strategy and execution. Overhaul and elevate a legacy team through hiring, mentorship, and organisational change. Establish scalable frameworks, processes, and tools to maximise research effectiveness and influence. Act as a trusted advisor to senior stakeholders, influencing decisions … change, and align stakeholders across functions. Experience partnering closely with Product, Marketing, and Design teams to deliver customer-centric outcomes. Resilient and resourceful: able to navigate legacy systems and inspire transformation. Demonstrated success managing managers and/or senior ICs within high-performing teams. Skilled in storytelling, data synthesis, and presenting clear, compelling insights to senior leadership. More ❯

will be Monday to Thursday 8.00am - 4.00pm Friday 8.00am -3.30p, Your responsibilities will include: Accurately input large volumes of data into the FSL system from legacy systems, Bann, paper files, or Excel spreadsheets. Validate and cross-check information for accuracy and completeness. Maintain consistent data formatting and naming conventions across the platform. Identify discrepancies or missing More ❯