1 to 25 of 534 Legacy Systems Jobs in England

Systems Data Architect

Location
Metropolitan Borough of Solihull, England, United Kingdom
over 20 years quietly powering some of the UK’s most complex networks - and now we’re growing fast. We’re looking for a Systems Data Architect to take ownership of how data and systems should work together across the business. You’ll reverse-engineer existing and legacy systems, establish the true current state, and design practical future-state data architecture, data flows and integrations that Development can implement. What it’s really like here The pace and intensity are higher than most environments in our sector. The workload is typically around 30% greater than ...

Contract Technical Consultant — Legacy Systems Discovery & Migration Readiness

Location
England, United Kingdom
Legacy Systems Discovery & Migration Readiness Contract/Freelance (Initial 5–15 day engagement) Hybrid/On-site required initially (North West England) MadeByAI is seeking an experienced technical contractor to support the discovery, interrogation and documentation of a complex legacy business systems environment … part of a wider AI and systems transformation programme. This is not a typical software development role. The environment We are specifically looking for someone who is comfortable working with mature, business-critical systems that have evolved over decades. The environment includes: Microsoft Access applications VBA/Visual ...

Legacy Systems Discovery & Migration Readiness Contract

Location
England, United Kingdom
MadeByAI is seeking an experienced technical contractor to support the discovery and documentation of a complex legacy systems environment in the North West of England. This position requires strong analytical skills and experience with legacy systems, specifically those reliant on Microsoft Access and SQL. … role focuses on understanding existing systems, identifying risks, and preparing for future migration. The contractor should thrive in challenging environments, especially with business-critical systems. #J-18808-Ljbffr ...

Principal Engineer

Hiring Organisation
Addition
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
advanced containerisation initiatives and improving the developer experience across the organisation. We’re particularly interested in engineers with deep experience modernising legacy systems, integrating CI/CD pipelines and mentoring senior technical teams. The Opportunity As Principal Engineer, you’ll lead pivotal engineering initiatives focused on making … complex Java estate fully containerisable. You’ll use your technical expertise to replatform, refactor and rebuild legacy systems, ensuring they integrate effectively with modern developer tooling and CI/CD pipelines. Alongside hands-on technical delivery, you’ll provide leadership and mentorship to senior engineers while promoting ...

EPR Cutover Project Manager

Hiring Organisation
Innovate Healthcare Services
Location
Warwick, CV34 5BW, United Kingdom
Salary
£80348.00
Programme team. You'll be responsible for designing, developing, and executing the Cutover Plan that transitions the organisation from legacy systems and processes to the new Oracle Health Millenium platform. You'll also lead the early live support strategy to ensure a smooth go-live across … duties of the job The EPR Cutover Project Manager will lead the strategic planning and execution of the transition from existing legacy systems and workflows to the new Electronic Patient Record (EPR) system. This role is critical to delivering a seamless and disruption-free go-live across ...

Senior Systems Analyst

Hiring Organisation
Anson Mccade
Location
West London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £485 per day
Were looking for an experienced Systems Analyst to support a major Data Migration and SaaS implementation project within the financial services environment. The role will support the replacement of a legacy collections platform with a new SaaS solution, with a strong focus on data migration, systems … functional requirements. Define project scope, objectives, backlog items and refinements. Support solution design and development across internal teams and external vendors. Lead Systems Integration Testing (SIT) and support User Acceptance Testing (UAT). Support implementation, operational readiness and transition into live service. Work with external suppliers to ensure delivery ...

Software Engineer - Mission Management Systems

Hiring Organisation
Hackajob Ltd
Location
Yeovil, Somerset, South West, United Kingdom
Employment Type
Permanent, Part Time, Work From Home
standard range are managed through governance controls to protect internal equity. At Leonardo in Yeovil we are seeking an experienced Software Engineer - Mission Management Systems to drive the end-to-end development of high-integrity aircraft software during a critical technical pivot. This role focuses on the evolution … autonomous capabilities. Your impact Working within our Helicopter division, you will be taking ownership of complex mission system software component, ensuring legacy systems remain robust, while simultaneously leveraging open architectures to ensure our future uncrewed systems are modular, portable, and ready for the next generation ...

Systems Data Architect - Hybrid Role: Data Flows & Legacy Systems

Location
Metropolitan Borough of Solihull, England, United Kingdom
Convergence Group in Solihull is seeking a Systems Data Architect to own data and systems integration. You will reverse-engineer legacy systems, map current data flows and design practical future-state architectures that Development can implement. You will deliver clear data structures, interfaces and models ...

IT Manager (Business Applications)

Location
Greater London, England, United Kingdom
Description This role will assist in managing the transition from legacy systems to a new ERP platform while ensuring stability of existing applications. To support the Business Applications technology function during a period of significant technological change. Job Description This role will assist in managing the transition … from legacy systems to a new ERP platform while ensuring stability of existing applications. To support the Business Applications technology function during a period of significant technological change. This Role Has Two Primary Objectives Transformation: Contribute to the local implementation of the Group ERP system by coordinating ...

Senior Full Stack Engineer - Agentic Industrial Emissions Platform (React and Go)

Hiring Organisation
IFS
Location
London, UK
Employment Type
Full-time
Core Responsibilities :Lead the design, architecture, and implementation of scalable APIs, services, and accessibility-first user interfaces. Drive the modernization of legacy systems into modular, event-driven, API-first components. Deliver AI-native features and improvements across both front-end and back-end, using multiple programming languages … outcomes from design through to production. Desirable :Experience with cloud platforms such as Azure, AWS, or GCP. Experience with event-driven architectures, distributed systems, or microservices. Experience modernizing legacy systems into modular, scalable platforms. Experience working in cross-functional product teams. Experience mentoring engineers or contributing ...

Software Developer | Capital Markets

Location
Greater London, England, United Kingdom
build new solutions in support of strategic business initiatives, andinitiatives and mature our existing software and efficiently migrate and re-platform legacy systems to the cloud, using cloud native design patterns. Working closely with the enterprise architecture stream and platform engineering team to ensure alignment to organisational … assist the wider scrum team in taking accountability for theirs Work with platform engineering to automate build and deploy of existing and new systems Support the strategic goals of Capital Markets development; greenfield initiatives, replatforming and consolidating legacy systems, and adopting an automation-first approach ...

Workday Financials Data Consultant

Hiring Organisation
Cognizant
Location
London, UK
Employment Type
Full-time
processes and data transformation logic to improve and normalise financial data. Validate and reconcile data loaded into Workday, ensuring consistency with legacy systems and financial requirements. Engage regularly with clients throughout the project lifecycle, ensuring a smooth transition from legacy systems to Workday Financials. … Skills & Requirements: Bachelor's degree or equivalent experience in Information Technology, MIS, Finance, or a related field. Experience in ERP data conversion or financial systems implementation. Experience with Workday Financials is essentialUnderstanding of financial data structures, including General Ledger, transactions, and reporting frameworks. Experience with data conversion, migration ...

Principal Software Architect

Location
West of England, England, United Kingdom
stack Identified gaps, risks, and constraints Target architecture aligned to business and product direction Migration and/or retirement proposals for legacy systems Ensure transition plans are: Realistic and incremental Aligned with delivery priorities Understood by engineering and product teams 5. Cross-Domain Alignment & Delivery Support Support … Experience, Knowledge, Skills, Abilities, Education) Required Experience 15+ years of experience in software engineering, with significant time in architectural roles Proven experience designing distributed systems across cloud and application layers Strong experience with at least one major cloud platform (Azure, AWS, or GCP), ideally across multiple Experience integrating hardware ...

Managing Director , Securities Finance Technology - C16 London

Location
Greater London, England, United Kingdom
teams, driving large‐scale modernization programs, and fostering a culture of innovation. You will be at the forefront of transforming our legacy systems into a modern, data‐enabled, and microservices‐based architecture to support our growing business needs. Key Responsibilities Technology Leadership & Strategy Define and execute … Finance, Agency Lending, or Collateral Management/Optimization is strongly preferred. Proven experience leading a successful, large‐scale technology transformation from legacy systems to a microservices‐based architecture. Education Bachelor’s or Master’s degree in Computer Science, Engineering, or a related technical field. Desired Skills Technical ...

Staff Engineer Java Spring Boot AWS

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
services sector. As a Staff Engineer, you'll lead the design and delivery of high impact technology projects, helping clients modernise legacy systems, migrate to AWS and introduce modern CI/CD and cloud deployment practices. You'll combine hands-on engineering with technical leadership, problem solving … projects and client engagements from design through to delivery Developing scalable Java applications using Spring Boot and microservices Modernising and migrating legacy systems to AWS Designing and working with REST APIs and distributed systems Introducing and improving CI/CD and DevOps practices Providing technical expertise ...

Senior Product Manager - Sustainable Data Platform

Hiring Organisation
London Stock Exchange Group
Location
London, UK
Employment Type
Full-time
onboarding and lifecycle of data sources, from discovery and evaluation through to production readiness Lead migration of datasets and workflows from legacy systems to strategic data platforms Partner with engineering, and operations, and commercial product teams to deliver scalable, reliable data capabilities Drive data quality, coverage … production (source evaluation, data mapping, ingestion patterns, validation rules, change management, and operational handover).Experience leading migration of datasets from legacy systems to target data platforms (e.g. cloud/data lake/warehouse), including data mapping, transformation design, reconciliation, parallel run strategies, and cutover planning to ensure ...

Finance Systems Accountant

Location
Greater London, England, United Kingdom
annum for 35 hours per week. Location: Bruce Kenrick House, 2 Killick Street, London N1 9FL What you’ll do As our Finance Systems Accountant, you will be the subject-matter expert for our legacy finance systems, including SunSystems 6.4, Infor Query & Analysis 11.3, Professional Advantage … will take responsibility for keeping the SunSystems platform reliable, controlled and audit-ready throughout its remaining operational life. Working within our specialist Finance Systems Team and reporting to the Head of Finance Systems, you will partner closely with colleagues across Finance and IT. This role sits ...

SAP DATA ANALYST - 10 months FTC - Up to £50k

Hiring Organisation
Vaerdi Recruitment Limited
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £50,000 per annum
Technical Data Analyst to join a major SAP S/4HANA Cloud transformation programme , helping a business move from multiple legacy systems onto its new SAP environment. This is a hands-on data role where you’ll play a key part in ensuring business-critical data … Role Support the data migration workstream of a major SAP S/4HANA implementation Analyse and prepare data held across multiple legacy systems Work across data profiling, cleansing, mapping and reconciliation Prepare and validate data ahead of migration into SAP Use SQL and Excel to investigate ...

Business Analyst

Location
Kenilworth, England, United Kingdom
largest electrical wholesalers as we reimagine our technology for the digital age. We’re modernising our legacy systems and building new platforms powered by AWS and AI — and we need creative minds to help us shape the future! We're looking for an experienced Business Analyst … play a pivotal role in one of the most significant transformation programmes in our organisation's history. As we modernise our core business systems through a large-scale ERP transformation, you'll work at the heart of the programme—partnering with business stakeholders, technology teams and delivery partners ...

Senior Oracle Developer

Location
Wilmslow, England, United Kingdom
joining near the start of a major four-year technology transformation programme, simplifying and modernising a number of legacy systems and migrating them onto a single strategic Oracle platform. There’s also a much longer roadmap of migration and modernisation work beyond the initial programme, so this … data and functionality is migrated across Creating new database tables, structures and processes Supporting large-scale data migrations from legacy systems Working alongside data migration, PHP and wider technology teams Some Unix shell scripting around batch processes and file movement Looking at ways to automate and improve ...

Director of Engineering - Content Platform (Catalog)

Location
Greater London, England, United Kingdom
craft experiences that feel intuitive, expressive, and unmistakably Spotify. This position sits at the heart of Spotify’s Content Platform, responsible for the systems that define, structure, and govern content across the platform. Our mission is to provide a trusted, consistent source of truth so content can be reliably … managed and reused across every Spotify experience. We build and operate the core systems and workflows that ensure content is accurate, complete, and available, from APIs and lifecycle orchestration through to content quality and integrity. As Spotify’s content ecosystem continues to grow in scale and complexity across ...

Senior Specialist/Engineer Service Operations

Location
Greater London, England, United Kingdom
making a tangible difference every day, we'd like to hear from you. ABOUT THE ROLE As a Senior Specialist – Mission Critical Radio & Cellular Systems , you will provide technical leadership for the operational support, maintenance and continual improvement of Heathrow Airport's critical communications infrastructure. Working across a diverse … technology estate spanning legacy and modern radio systems, RF over Fibre Distributed Antenna Systems (DAS), public and private cellular infrastructure and IP-based communications platforms, you'll lead the resolution of complex technical issues while helping shape the future direction of operational communications at Heathrow. This ...

Software Engineer

Location
Greater London, England, United Kingdom
infrastructure underpin our economy and daily lives. Yet many of the organizations responsible for them are constrained by fragmented processes, fragile legacy systems, and decades-old ways of working. About Cogna Physical industries like energy, utilities, and infrastructure underpin our economy and daily lives. Yet many … organizations responsible for them are constrained by fragmented processes, fragile legacy systems, and decades-old ways of working. These organizations must manage aging assets, deliver major infrastructure programs, meet tighter standards, and keep essential services running. Cogna helps them solve the operational problems that slow this work ...

IT Manager (Business Applications)

Location
Greater London, England, United Kingdom
will lead the delivery of business‐critical applications while supporting a major ERP transformation programme. You'll oversee the transition from legacy systems to a new ERP platform, ensuring business continuity throughout the migration. Managing a team of application specialists, you'll coordinate testing, training and data … applications such as ERP, WMS and OMS. You'll be a confident people leader with strong stakeholder management skills, a solid understanding of enterprise systems, integrations and data governance, and experience managing multiple projects simultaneously. Knowledge of Oracle Retail would be highly advantageous, as would experience supporting legacy ...

IT Manager, Fashion Retail (Business Applications)

Location
Slough, England, United Kingdom
will lead the delivery of business-critical applications while supporting a major ERP transformation programme. You'll oversee the transition from legacy systems to a new ERP platform, ensuring business continuity throughout the migration. Managing a team of application specialists, you'll coordinate testing, training and data … applications such as ERP, WMS and OMS. You'll be a confident people leader with strong stakeholder management skills, a solid understanding of enterprise systems, integrations and data governance, and experience managing multiple projects simultaneously. Knowledge of Oracle Retail would be highly advantageous, as would experience supporting legacy ...