1 to 25 of 33 Contract Legacy Systems Jobs in London

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 ...

across functional workstreams, ensuring data meets architectural, compliance, and governance standards. Key Responsibilities Extract and prepare HR and employee data from legacy systems for migration into Workday Transform, cleanse, and validate datasets to meet agreed standards and Workday requirements Conduct data gap analysis and support remediation … delivery Experience/Knowledge needed: Experience of working with the HR function Excellent abilities when it comes to extracting data from legacy systems, cleansing data, validating data, transforming data and preparing to hand over to the IMPL Data lead. Demonstrable HR data architecture experience Identify and analyse ...

across functional workstreams, ensuring data meets architectural, compliance, and governance standards. Key Responsibilities Extract and prepare HR and employee data from legacy systems for migration into Workday Transform, cleanse, and validate datasets to meet agreed standards and Workday requirements Conduct data gap analysis and support remediation … delivery Experience/Knowledge needed: Experience of working with the HR function Excellent abilities when it comes to extracting data from legacy systems, cleansing data, validating data, transforming data and preparing to hand over to the IMPL Data lead. Demonstrable HR data architecture experience Identify and analyse ...

term ERP implementation project. This role will support a phased ERP rollout, ensuring accurate, compliant, and validated migration of data from legacy systems into a new enterprise platform within a regulated GMP environment. Key responsibilities: Plan, execute, and validate data migration activities from multiple legacy systems into a new ERP platform. Ensure data integrity, accuracy, traceability, and regulatory compliance throughout the migration lifecycle. Support and manage data archival, data cleansing, de-duplication, and transformation activities to improve data quality. Operate independently, managing workload, timelines, and methods of delivery. Required experience and skills ...

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 ...

background/experience- Familiarity with public sector regulations, compliance (e.g., GDPR, FOIA), and procurement processes. Knowledge of common public sector challenges: legacy systems, citizen engagement, case management, grants, licensing. Proficiency in Salesforce particularly Service Cloud, Experience Cloud, and Public Sector Solutions. Strong grasp of Data Cloud, MuleSoft … Experience with CI/CD pipelines and DevOps tooling (e.g., Copado, Gearset, Git-based workflows) Experience integrating Salesforce with ERP, data platforms, or external systems Strong stakeholder management and communication skills Desirable Certifications Salesforce Platform Developer II OmniStudio Developer/Consultant Application Architect Balances hands-on engineering with strategic ...

ensure performance and reliability. - Monitor solutions postdeployment and proactively resolve issues, performance problems or system changes. - Integrate Microsoft solutions with legacy systems and external APIs to ensure a joinedup technology estate. - Identify opportunities to use AI, machine learning and advanced analytics to support smarter service delivery. - Work ...

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/ ...

bring: - Experience designing and configuring RPA workflows, bots and automation solutions - Experience developing and maintaining automated pipelines for AI tools - Ability to integrate multiple systems and applications using APIs, JSON, XML, CSV, or other data interchange methods. - Knowledge of database environments (e.g., MS SQL, Dataverse, OneLake). - Experience working … approaches including unit, integration and performance testing. - Monitor automated solutions, proactively resolving issues and optimising performance. - Design solutions that integrate with legacy systems and external APIs to ensure interoperability and a smooth user experience. - Work in an agile, multidisciplinary environment, contributing to DevOps practices, version control ...

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 ...

responsible for: Designing and deploying efficient, resilient data pipelines within Azure Fabric Enabling the migration of data from legacy systems and cloud services into the new Azure-based architecture Working with technical and non-technical stakeholders to ensure data accuracy, completeness, and availability Embedding automation and observability ...

high-growth, product-led scale-up who are rebuilding their entire data layer in-house after moving away from their legacy systems and processes. They are in need of a hands-on Data Platform Engineer to design, build, and own a clean PostgreSQL-based backend data platform … Have PostgreSQL (design, modelling, optimisation) SQL and relational database engineering Building backend data services (APIs, views, pipelines, ETL/ELT) Data integration with operational systems ADF or similar orchestration tools Migrating/decommissioning legacy data platforms Nice-to-Have Experience in scale-ups or lean engineering teams ...

infrastructure topics, migration strategies and platform solutions, cloud native and hybrid. Support operational and engineering colleagues through identifying opportunities to simplify legacy systems, automate processes, and improve security and performance using cloud-native. Ensure compliance with relevant frameworks, including ISO 27001, PCI DSS. Support infrastructure capabilities internally … storage. Experience with Windows Relevant exposure to leading cloud providers, in particular AWS. Virtualisation, containerisation, orchestration and serverless architectures Evidence of successfully simplifying legacy infrastructure and migrating to hybrid and cloud-native platforms Awareness and use of architectural frameworks Reasonable Adjustments: Respect and equality are core values ...

Lake technologies. Provide technical support and maintain the organisation's BI infrastructure. Lead and support migration and reconciliation of data from legacy systems or acquired businesses. Ensure BI solutions follow governance, security, and compliance best practices. Collaborate with cross-functional teams, including PMO, IT Solutions … work across both technical and non-technical teams. Experience with Microsoft Fabric (must have). Experience with BI migration projects (e.g., from legacy BI to Fabric) is beneficial. Knowledge of data governance and security tooling such as Microsoft Purview (desirable). Please send me a copy of your ...

Clearance Nice-to-Have Skills Hands-on experience with container platforms (Docker, Kubernetes) Experience designing cloud-native solutions or modernising legacy systems Exposure to regulated, enterprise, or large-scale environments Architecture or cloud certifications (e.g. TOGAF, AWS/Azure/GCP Solutions Architect ) Familiarity with monitoring, logging ...

Role Define and validate the meaning, structure, and shape of target datasets Quantify and assess data quality issues across legacy systems Translate data anomalies into clearly defined and agreed business rules with stakeholders Essential Skills & Experience Assess data completeness, validity, consistency, and uniqueness, and interpret what issues … verify transformation results Geospatial & Public Data Experience Proven experience working with geospatial data , including spatial formats (e.g. vector, raster, GeoJSON, shapefiles), coordinate reference systems, and spatial analysis workflows Strong ability to interpret and apply geographical context within data processing pipelines Demonstrated experience identifying local or regional geospatial insights ...

North London is seeking a highly experienced Interim Data Modeller to design and implement a global finance and HR data model spanning multiple source systems . This is a pure data modelling role . The focus is on structure, consistency, and correctness of data, not reporting, dashboards, or downstream … across geographies, entities, and systems. Key responsibilities include: Designing and owning global canonical data models for Finance and HR Integrating data from multiple source systems (ERP, HRIS, payroll, planning tools) Defining conformed dimensions, facts, hierarchies, and reference data Resolving data conflicts across regions, entities, and legacy systems ...

heavily investing in modernising its data landscape to become a fully data-driven organisation. This includes migrating away from traditional legacy systems and adopting scalable, cloud-native data platforms. Within this context, the Risk Foundations Platform plays a critical role. The platform's vision is to design … enterprise-grade data products that enhance risk modelling, reporting, and regulatory compliance. A key strategic priority for the team is the decommissioning of legacy data stores and replacing them with modern, cloud-based capabilities that are fully owned and managed within the platform. Programme Focus The programme focuses ...

North London is seeking a highly experienced Interim Data Modeller to design and implement a global finance and HR data model spanning multiple source systems . This is a pure data modelling role . The focus is on structure, consistency, and correctness of data, not reporting, dashboards, or downstream … across geographies, entities, and systems. Key responsibilities include: Designing and owning global canonical data models for Finance and HR Integrating data from multiple source systems (ERP, HRIS, payroll, planning tools) Defining conformed dimensions, facts, hierarchies, and reference data Resolving data conflicts across regions, entities, and legacy systems ...

Talent, Absence, Recruitment, and Compensation - are rigorously tested and validated against business requirements before go-live, including key interfaces to Payroll, Benefits, and legacy systems.You will lead the end-to-end testing strategy, coordinate multiple stakeholders, manage test teams, and ensure the delivery of a high-quality … strategy, including non-Oracle and AWS aspects, and ensuring regression testing coverage for non-Oracle/AWS legacy ETLs and systems throughout the programme. Test Management & Execution Lead and coordinate all testing activities across HCM modules (Core HR, Payroll, Absence, etc.). Manage a team of internal ...

Local Authority-wide RPA programme Engage senior stakeholders across IT, Digital, Transformation and Service Directorates Assess current technical architecture, legacy systems and process landscape Identify automation opportunities aligned to service efficiency and citizen outcomes Define programme scope, governance model and delivery roadmap Develop business case inputs ...

Outside IR35)/Remote Were working with a top UK University that has decided to migrate over from old legacy systems to Salesforce Education Cloud. They require a Salesforce Functional Consultant to come on board who has strong experience of delivering migrations with strong stakeholder management ...

batch records into EBRs in Rockwell Pharmasuite utilizing existing functionality Ability to work with site SMEs to turn existing EBRs in legacy systems (P2C2, PMX, etc.) into Rockwell Pharmasuite EBRs utilizing existing functionality Ability to design Building Blocks that can be reused in multiple processes Ability ...

Outside IR35)/Remote Were working with a top UK University that has decided to migrate over from old legacy systems to Salesforce Education Cloud. They require a Salesforce Functional Consultant to come on board who has strong experience of delivering migrations with strong stakeholder management ...

lead the design and integration of a mission-critical Emergency Services Network . This role focuses on the transition from 4G legacy systems to a cloud-native 5G Standalone (SA) architecture. The Essentials 4G Design: Deep knowledge of MME, GW-C, GW-U and interfaces … . 5G SA Design: Expertise in SBA architecture and N-interfaces (AMF, SMF, UPF). Cloud-Native: Experience with NFVI and Kubernetes (containerised systems management). Deliverables: Ownership of HLD/LLD , integration, and configuration management. Networking: Strong understanding of IP networks and core protocols. The Mission You will ...