1 to 25 of 31 Legacy Systems Jobs in the South East

Supply Chain Lead - Oracle

Hiring Organisation
Manpower
Location
Farnborough, Hampshire, South East, United Kingdom
Employment Type
Contract
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 ...

Infrastructure Systems Manager

Hiring Organisation
TPP Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£35,825 per annum
Infrastructure Systems Manager Hours: Full-time (35 hours per week) Contract: 12-month fixed-term Location: Central London office Working pattern: Fully remote with occasional travel to London Salary: £35,825 , rising to £38,065 after six months’ serviceWe’re recruiting an Infrastructure Systems Manager … profit organisation undergoing a major shift from legacy on-premise systems to a modern, cloud-first environment. This role is ideal for a strong IT Officer or 3rd line engineer with hands-on project experience who is ready to step up . You’ll lead technical work ...

Senior IBMi Architect

Hiring Organisation
HCLTech
Location
Slough, England, United Kingdom
enterprise ecosystems like APIs (REST/SOAP),MQ Series, event-driven integrations, batch interfaces, file-based integrations, Integrate with Digital platforms, Core banking systems, CRM/ERP systems, Payment gateways, define API enablement strategy for legacy systems and Implement middleware and integration patterns. Application Architecture …/COBOL monoliths, Green-screen applications → Web/UI platforms, Establish coding and architectural standards. Domain Expertise Responsibilities Leasing: Contract lifecycle management, Asset finance systems, Billing & payment schedules, Residual value management, Regulatory leasing compliance. Banking: Core banking operations, mortgage & deposits processing, payments & settlements, risk & compliance workflows, regulatory reporting frameworks. ...

Sharepoint Developer SME

Hiring Organisation
Sopra Steria
Location
Southampton, UK
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/ ...

Data Engineer - SC Cleared

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Competitive salary
advanced data pipelines with Python, SQL, Spark/PySpark and Delta Lake. Champion strong data quality, governance and observability practices. Modernise legacy systems and support large-scale migrations into Azure. Provide technical leadership, set engineering standards and contribute to architectural decisions. Mentor engineers and foster a culture ...

Head of IT

Hiring Organisation
Gold Group
Location
Redhill, Surrey, United Kingdom
Employment Type
Permanent
Salary
£80000 - £85000/annum + Benefits
security, End User device management, project management, implementing ISO Standards (ISO27001, ISO9001). Responsible for the maintenance and gradual migration of legacy systems (e.g. databases, applications, file storage, etc.) from on-premise to a new Cloud/Hybrid architectures. This is both hand-on and a management … Flexible working hours Some of the main duties of the Head of IT will include: * Maintenance of legacy on-premise/hybrid systems, with eventual migration to new Cloud architectures * Regularly examine the organisation's information security risks, taking account of the threats, vulnerabilities, and potential impacts ...

Oracle Data Engineer - Inside IR35 - Remote

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £450 per day
platform. This role combines hands-on backend development, database work, operational support, and system modernisation, making it ideal for someone who enjoys understanding complex systems and improving them over time. Key Responsibilities Maintain and enhance a Java monolithic application with an Oracle PL/SQL database Pair with existing … stakeholders to improve the overall data and platform architecture Required Skills & Experience Strong experience as a backend software developer Experience working with Java-based systems Solid problem-solving and debugging skills Experience working with databases and SQL Experience with test-driven development (TDD) Experience working in Agile development environments ...

Data Engineer - SC Cleared

Hiring Organisation
VIQU IT Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £650 per day
observability, ensuring data is accurate, timely, and fit-for-purpose for analytics, BI, and operational use cases.• Drive the modernization of legacy systems, leading the migration of data infrastructure to Azure with minimal disruption and long-term scalability.• Act as a technical authority on Azure-native data ...

Backend Developer

Hiring Organisation
Spectrum It Recruitment Limited
Location
Romsey, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
£50,000
technology. The Role This is a hands-on backend role with real ownership. You'll work across both: Stabilising and improving existing Laravel-based systems Designing and building new SaaS products using a modern tech stack You'll act as the backend authority within a small, collaborative team, working … Senior UX/UI Designer. What You'll Be Doing Design & Development Build and maintain scalable SaaS applications Develop clean, well-structured backend systems using modern Laravel Design and implement robust RESTful APIs for a React frontend Architecture & Ownership Own backend architecture and code quality Design multi-tenant database ...

Data Architect

Hiring Organisation
Michael Page Technology
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £90,000 per annum
Copilot and emerging AI/ML solutions. Lead data platform modernisation initiatives, including optimisation of existing environments and supporting transitions from legacy systems to cloud-based solutions. Provide clear technical guidance to cross-functional teams, translating complex data and AI concepts into actionable insights for a range … stakeholders. Monitor and optimise data systems to enhance performance, reliability, accuracy and operational efficiency. Support the integration of machine learning and AI solutions, ensuring ethical governance, ongoing monitoring and responsible deployment. Lead, develop and motivate a high-performing data team, fostering an inclusive, collaborative and continuously improving culture. Profile ...

SharePoint Document Management System (DMS) Design & Implementation Expert

Hiring Organisation
FRP Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
Integrate SharePoint with Microsoft Teams, OneDrive, Purview, and other M365 services.3. Data Migration• Assess and map existing document repositories (file shares, legacy systems, third-party tools).• Lead migration planning, cleansing, mapping, and execution (using tools such as ShareGate, Mover, or native tools).• Develop and deliver ...

Software Development Manager

Hiring Organisation
Arc IT Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£10,000 - £130,000 per annum
Role You’ll lead multiple engineering teams and delivery partners, driving the build and integration of modern, cloud-based platforms while transitioning from legacy systems. This is not a hands-on coding role , but equally not a pure programme role — you’ll sit at the intersection of engineering ...

Senior Java Full Stack Engineer

Hiring Organisation
Total Recruitment Group
Location
Oxford, Oxfordshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
Up to £530 per day Inside IR35
building secure, scalable microservices Developing high-performance REST APIs backed by Postgres/Oracle (advanced SQL, performance tuning, schema design) Modernising legacy systems into resilient, cloud-native architectures Embedding secure coding standards, identity and secrets management Supporting CI/CD pipelines and containerised deployments (Docker/Kubernetes …/Ansible) Observability tooling (Prometheus/Grafana) Experience in regulated or security-conscious environments If youre a security-minded fullstack engineer who values scalable systems, strong database integrity, and clean communication wed love to hear from you. ...

Principal Data Engineer

Hiring Organisation
Halian Technology Limited
Location
South East London, London, United Kingdom
Employment Type
Permanent
modern data platform from the ground up. Were working with a business in the middle of a high-impact data transformationmoving away from legacy constraints towards a scalable, cloud-first architecture. Theyre looking for a Principal Data Engineer to take a leading role in that journey. This isnt … skills in Python and SQL Hands-on experience with Databricks, Azure, and GCP/BigQuery Proven ability to work across both legacy systems and modern cloud environments Key Skills DevOps mindset you automate wherever possible and write clean, testable code Pragmatic approach focused on delivering value without ...

Senior Power Platform Developer / Consultant

Hiring Organisation
Morson Edge
Location
Essex, South East, United Kingdom
Employment Type
Contract
best practice, governance and standards for Power Platform Supporting the creation of a Power Platform CoE (process, tooling, controls) Working across legacy systems and integrating with Microsoft 365 We're looking for someone who: Has strong experience across Power Platform (Power Automate, Power Apps) Has delivered ...

Delphi Developer

Hiring Organisation
Octad Recruitment Consultants (Octad Ltd )
Location
Wickford, Essex, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
/MS SQL Server experience. 3+ years .NET C# experience. Strong experience with complex, data-driven applications. Proven background maintaining or upgrading legacy systems. Experience with visually inherited UIs. Strong debugging, optimisation, and performance-tuning skills. Experience working within Agile, Waterfall, or hybrid SDLC environments. Familiarity with version ...

Power Platform Developer

Hiring Organisation
Context Recruitment Limited
Location
Southampton, Hampshire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £55,000 per annum
translate technical logic into practical solutions. Support the creation of tools and applications used directly by external clients. Assist with modernising legacy systems and improving data processing and document management workflows. Produce Power BI dashboards and reports where required. Skills & Experience Essential: Strong practical experience with ...

Technical Transition Manager - Housing - Transformation

Hiring Organisation
Daniel Owen Ltd
Location
Wembley, Middlesex, United Kingdom
Employment Type
Contract
Contract Rate
GBP 550 - 760 Daily
Council's long-term outsourced IT service provider to a hybrid delivery model. The role will lead the technical transition of selected IT systems and services to new platforms, suppliers, or in-house arrangements, ensuring continuity of service, security, and value for money. The postholder will work closely with … safe and secure transition period, to enable service continuity Coordinate multiple concurrent transition activities, ensuring alignment with the Council's wider transformation programme Systems & infrastructure transition, managing the technical transition of defined IT systems, platforms, and services to new solutions or operating models Oversee activities such as system ...

Integrations Technical Business Analyst

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £670 per day
part of a large finance ERP implementation programme. This role is central to the integration workstream, supporting the transition from legacy systems to a legal-specific ERP.Job Details:Start date: ASAPDuration: until March 2027 initiallyRate: £600-£670pd Inside IR35 via UmbrellaLocation: LondonHybrid: 3 days in the officeKey ...

Senior Sales

Hiring Organisation
Pareto
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £70,000 per annum
Manager to spearhead "New Logo" expansion into the UK & Ireland Tier 1 Main Contractor market. You will move customers from fragmented legacy systems to a unified, "Office-to-Site" digital workflow that mitigates risk and drives ROI. The Role Target Market: Exclusively focused on securing new enterprise ...

HR Data Architect (Contract)

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £630 per day
work closely with senior stakeholders, including another project lead, to design and implement scalable data solutions, bringing together legacy Oracle systems with modern cloud-based platforms. Key responsibilities include: Designing and developing data models to support HR data transformation Leading on data ingestion and architecture, ensuring smooth … integration across systems Supporting the transition from traditional ETL processes to modern data engineering practices Working closely with Oracle teams to understand existing data structures Ensuring alignment between architectural design and engineering delivery Collaborating with stakeholders to understand reporting and data usage across insight teams Delivering 6 key data ...

Technical Business Analyst

Hiring Organisation
Connells Group HQ
Location
Caldecotte, Milton Keynes, Buckinghamshire, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
operational needs, and translate requirements into clear Business Requirement Specifications or User Stories. The CPE team is responsible for maintaining and supporting key business systems, as well as managing incidents through ServiceNow, coordinating regular software releases, and addressing technical debt. We offer a hybrid working arrangement, with two days … support as required, including investigation of issues using SQL and system logs where appropriate Mapping and documenting interfaces between legacy and new systems Experience & Skills Required: Essential Strong analytical skills, with the ability to understand complex systems and data flows Strong SQL and understanding ...

Data Architect - HR Integration

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £630 per day
major HR data transformation programme, playing a pivotal role in shaping new data models and driving the migration from legacy Oracle systems to a modern AWS and Snowflake environment. You will be joining a high-impact team delivering new HR data products that sit at the heart … their HR data ecosystem as part of a wider digital transformation. Operating in a complex, fast-paced environment, they are modernising their core HR systems and embedding cloud-first data practices. You will join a collaborative, delivery-focused team that is building out new data foundations and establishing best ...

Data Migration Lead

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
delivery of the data workstream for a large-scale supply chain transformation Lead end-to-end data migration from legacy inventory systems into CrunchTime Oversee data profiling, cleansing, transformation, validation and reconciliation Support mock migrations, cutover planning and go-live readiness Work closely with integration teams … ensure data flows across systems are accurate Coordinate and manage onshore and offshore data analysts Engage with business stakeholders to translate requirements into data deliverables Establish data governance, controls and documentation across the programme Key Experience Required Experience within hospitality, retail or inventory-driven environments as a Data Lead ...

Contract PHP Developer - Authentication & Identity (OAuth/OIDC)

Hiring Organisation
Spectrum IT Recruitment
Location
Reading, Berkshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
seeking an experienced Contract PHP Developer to lead delivery. You will play a key role in transitioning a live production system from a legacy session-based model to a modern OAuth2/OIDC-based architecture, leveraging a third-party identity provider. This is a hands-on, high-impact … Okta, Cognito, Descope, etc.), including Infrastructure as Code configuration Strong experience designing end-to-end authentication architectures Demonstrated experience migrating legacy authentication systems (sessions tokens) Strong backend engineering experience with Laravel or similar PHP frameworks Experience integrating authentication into SSR frontends (Vue.js preferred) Solid understanding of RBAC ...