1 to 25 of 68 Legacy Systems Jobs in the South East

will be accountable for building seamless, high-converting digital experiences that are secure, compliant, and scalable, while progressively modernising and integrating legacy systems into a future-ready platform. With a core focus on their Self-Serve capabilities for their customers. This is a hands-on role … delivery cycles, working closely with engineering teams to ensure timely, high-quality releases. Digital Transformation & Platform Evolution Drive the modernisation of legacy systems, integrating them into scalable, customer-centric digital platforms. Define and deliver API-led, modular solutions that support future growth and innovation. Select and collaborate ...

Programme Manager – Housing Systems Transformation Location: Hybrid – Portsmouth Duration: April 2026 – March 2028 Working Pattern: 4 days per week (8.00 am – 5.00 pm) Rate: £350 – £400 per day PAYE A major housing provider in Portsmouth is embarking on a significant transformation programme, replacing multiple legacy systems … reporting Lead multi-workstream delivery covering system configuration, integrations and environment management Oversee complex data cleansing and migration from multiple legacy housing systems Manage integrations across housing, repairs, finance, community safety and corporate platforms Lead testing cycles including System Integration Testing and User Acceptance Testing Drive organisational ...

integration. The successful candidate will lead the consolidation of multiple Salesforce orgs, third party CRM and field service platforms, and legacy systems into a unified, scalable Salesforce platform covering Sales Cloud, Service Cloud, and Field Service Lightning. This role plays a pivotal part in reducing technical debt … architecture and governance Secure, compliant, and scalable Salesforce design aligned to ISO 27001 and GDPR Reliable integration with Workday, telephony platforms, and other core systems Improved customer experience through consistent processes and data visibility Salesforce architecture and delivery Own and define the end-to-end Salesforce architecture ...

rate We are seeking an experienced Supply Chain Lead to drive the end-to-end transition of Procurement processes from legacy systems into Oracle. This is a key contract role supporting a major ERP transformation programme, requiring strong functional expertise and hands-on delivery capability. The Role … solution design, workflow development, process implementation, stakeholder engagement, and training delivery. Key Responsibilities Lead the transition of Procurement activities from legacy systems to Oracle Support all Procurement-related elements of the wider ERP migration programme Design, own and maintain the Procurement data strategy, ensuring data integrity throughout ...

rate We are seeking an experienced Supply Chain Lead to drive the end-to-end transition of Procurement processes from legacy systems into Oracle. This is a key contract role supporting a major ERP transformation programme, requiring strong functional expertise and hands-on delivery capability. The Role … solution design, workflow development, process implementation, stakeholder engagement, and training delivery. Key Responsibilities Lead the transition of Procurement activities from legacy systems to Oracle Support all Procurement-related elements of the wider ERP migration programme Design, own and maintain the Procurement data strategy, ensuring data integrity throughout ...

needs. Own the delivery of direct digital product journeys , ensuring seamless experiences with high conversion rates. Drive digital transformation by modernising legacy systems and integrating them into scalable, customer-centric platforms. Select and collaborate with engineering teams to ensure robust technical solutions and efficient delivery. Design … Senior Product Owner in financial services or fintech with significant experience of Mobile Applications/APPs and Portals Strong understanding of legacy systems and experience delivering digital transformation programmes, ideally within customer portals. Solid technical knowledge of software delivery, APIs, and system integration . Deep expertise ...

Title: Microsoft D365 BC Systems Manager Salary: £59,103 per annum, Band H, Level 3 - Inclusive of a Market Supplement Location: Scout Store, Lancing, West Sussex, BN15 8UG Contract Type : Permanent Working Hours : 35 - Hybrid working with two days a week in Lancing and as required. About the role … looking for an experienced and practical Microsoft D365 Business Central Systems Manager to take ownership of our core business systems. This is a hands-on role where you'll make a real difference, keeping our systems running smoothly and helping the business work better every day. ...

strategic spatial energy planning, environmental impact assessments, economic modelling, and community engagement. The architect will play a pivotal role in consolidating legacy systems, ensuring data quality, and enabling advanced geospatial analytics. Your Responsibilities 1. GIS Platform Architecture & Design Lead the end-to-end design of a scalable … platform aligned with project strategic goals Define architecture principles, technology stack, and integration patterns Ensure interoperability with internal and external systems (e.g., energy models, environmental databases) 2. Infrastructure Provisioning Design and provision Azure-based environments (Sandbox, Dev, UAT, Production) Ensure high availability, scalability, and security of cloud infrastructure Integrate ...

fast-growing, acquisition-led organisation. Your core mission will be to migrate operational (CRM) and in time, finance data from multiple legacy systems into Microsoft Dynamics, repeatedly, reliably, and under pressure. You will work across: Bespoke, undocumented, and at times, home-grown systems SaaS platforms (e.g. … with minimal hand-holding, in a demanding BAU + project environment. What Youll Be Doing For each acquired business, analyse legacy source systems (often undocumented) Understand and interrogate data models at source and target (D365/Dynamics) Perform source-to-target mapping Extract, cleanse, transform, and load ...

Project Manager to lead a major Housing Management System (HMS) transformation programme. This is a significant transformation initiative replacing multiple legacy housing systems with a single, modern, cloud-hosted Housing Management System. The new platform will support over 15,000 households and will play a key role … link between Housing, IT & Digital, Data, Finance, Procurement, Governance and external suppliers Overseeing data cleansing and migration from multiple legacy systems Managing integrations with repairs, finance, community safety and corporate systems Leading system integration testing (SIT), user acceptance testing (UAT), defect management and go-live readiness ...

across mission-critical systems. You will be the technical authority for infrastructure decisions, working closely with military stakeholders, architects, and delivery teams to ensure systems are secure, resilient, interoperable, and fit for operational use. Key Responsibilities Act as Technical Lead for infrastructure within a secure military environment Lead … standards and policies Lead and mentor engineers, setting technical direction and best practice Work closely with architects and delivery leads to ensure interoperability between systems, networks, and platforms Support integration of legacy military systems with newer infrastructure solutions Ensure infrastructure is designed for resilience, availability ...

will be working for Portsmouth Homes, who are embarking on a major transformation of its Housing Management services, replacing a complex mix of ageing systems with a single, modern, cloud-hosted Housing Management System (HMS). This high-profile project will play a significant role in improving services … engagement where required, ensuring supplier deliverables meet contractual expectations. Oversee all technical and functional workstreams, including data cleansing, migration from multiple legacy systems, integrations with Repairs, Community Safety, Finance and corporate platforms, environment management, and configuration. Manage testing cycles end-to-end, including SIT, UAT, defect tracking ...

community of practice and staying current with Salesforce platform evolution Provide technical leadership across dependencies where Salesforce is integrated with multiple legacy systems, with proven ability to drive technical strategy and resolve integration challenges. Monitoring and troubleshooting: ability to implement monitoring, logging and proactive issue resolution across … best practices Proven track record of working with Salesforce as part of a wider integrated IT estate, including legacy and external systems using a range of integration tools and patterns Experience with Salesforce DevOps and CI/CD tooling Strong understanding of Salesforce security management, data management ...

community of practice and staying current with Salesforce platform evolution Provide technical leadership across dependencies where Salesforce is integrated with multiple legacy systems, with proven ability to drive technical strategy and resolve integration challenges. Monitoring and troubleshooting: ability to implement monitoring, logging and proactive issue resolution across … best practices Proven track record of working with Salesforce as part of a wider integrated IT estate, including legacy and external systems using a range of integration tools and patterns Experience with Salesforce DevOps and CI/CD tooling Strong understanding of Salesforce security management, data management ...

large-scale ERP transformation initiative. This role is responsible for planning, executing, and validating the migration of data from multiple legacy systems into a new enterprise platform. The successful candidate will take full ownership of end-to-end migration activities, ensuring data accuracy, integrity, compliance, and traceability … throughout the migration lifecycle. Key Responsibilities Analyse legacy system data structures and define detailed data mapping rules aligned with the target ERP data model. Design, develop, and execute ETL workflows for data extraction, transformation, and loading activities. Plan and conduct trial migrations, validate outputs, and reconcile migrated data ...

specify, develop and test the sub-system; also being responsible for varying specialist services which involve the choice and application of diverse processes, systems and techniques. Office based in Farnborough. SC Cleared or eligible for SC. What you'll be doing: SharePoint SME to build SharePoint solutions that … processes and governance requirements. Implement secure access and permissions models in line with organizational and MOD/NCSC policies. Integrate SharePoint with other enterprise systems (e.g. ServiceNow, Power BI, Azure, and legacy systems). Customise the SharePoint user experience through modern UI design, scripting (JavaScript/ ...

focused on creating a cohesive architecture that supports business growth and operational excellence. You'll assess the current technology landscape across trading systems, finance, and middle office, identify gaps, and design a roadmap to leave legacy systems behind and build a modern, integrated ecosystem. This … hands-on coding role - it's about vision, strategy, and influence. You'll guide the mapping and research phase, evaluate pricing and trading systems, and make informed recommendations that transform how we operate. We need someone who can bridge the gap between technology and business. What ...

practices and industry standards. Data Migration & Readiness Support data cleansing, enrichment, and harmonization activities. Define and validate data mapping rules from legacy systems to S/4HANA. Participate in mock conversions, data loads, and reconciliation activities. Ensure data quality thresholds are met prior to cutover. Data Governance ...

Ariba environment. Role Overview You will be responsible for delivering a controlled and effective migration from legacy OCR and document-processing systems into the Council’s new SAP landscape. The role will focus on ensuring seamless system integration, improved controls, and the realisation of efficiencies across Finance … London to support delivery and stakeholder engagement. A key element of the role will be change management , ensuring successful adoption of new processes and systems across internal teams and external suppliers. Key Responsibilities Lead the end-to-end migration of OCR and document-processing activities into SAP S/ ...

seeking a BI Solutions Analyst to join our Data Centre of Excellence. In this role, you will help us transition from legacy systems to a cutting-edge Microsoft Fabric platform, ensuring our reporting assets are accurate, reliable, and high-performing. This is an intermediate-level position focused … departments like Finance and Sales to gather requirements and translate them into structured user stories. Data Quality & Governance: Validate data across multiple source systems (CRM, ERP, and HRIS) and maintain rigorous documentation for business logic and dependencies. UAT & Production Support: Lead first-line analysis of data discrepancies and support ...

configuration design documentation (LLD) for proposed solutions Azure tenancy administration Implementation of cloud security infrastructure and defined security policy Migration of legacy systems to Azure cloud platform SQL Database Infrastructure administration on-prem and cloud deployments Azure capacity planning and Disaster Recovery Storage lifecycle management including blob … operational monitoring platforms Maintain Infrastructure diagrams In conjunction with the change manager ensure changes and maintenance windows are effectively enacted Maintain transitional legacy physical and virtual infrastructure assets (Server & Networking) Team management via work allocation, regular meetings, conduct performance reviews measuring performance against agreed objectives and mentoring team ...

practices and industry standards. Data Migration & Readiness Support data cleansing, enrichment, and harmonization activities. Define and validate data mapping rules from legacy systems to S/4HANA. Participate in mock conversions, data loads, and reconciliation activities. Ensure data quality thresholds are met prior to cutover. Data Governance ...

practices and industry standards. Data Migration & Readiness Support data cleansing, enrichment, and harmonization activities. Define and validate data mapping rules from legacy systems to S/4HANA. Participate in mock conversions, data loads, and reconciliation activities. Ensure data quality thresholds are met prior to cutover. Data Governance ...

Data Migration Engineer to support a large-scale ERP transition by planning, executing, and validating migration of data from multiple legacy systems into a new enterprise platform. The role requires strong ownership of end-to-end migration activities, ensuring data accuracy, integrity, and compliance throughout the process. … Responsibilities Analyse legacy system data structures and define mapping rules aligned to the new ERP model. Design and execute ETL workflows for data extraction, transformation, and loading. Plan and run trial migrations, validate outputs, and reconcile results against source systems. Drive data cleansing and de-duplication efforts ...

Embeddings, vector stores, and evaluation Guardrails, rate limiting, and failure handling Human-in-the-loop workflows Integration & automation Integrating AI into existing enterprise systems Automating end-to-end workflows (not just isolated tasks) Working with legacy systems and imperfect data You understand security, permissions, and data ...