26 to 50 of 167 Legacy Systems Jobs in the UK

Salesforce Solution Architect

Hiring Organisation
NTT DATA
Location
London, UK
Employment Type
Full-time
education, defence, etc. 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 key Salesforce architecture areas, particularly Service Cloud, Experience Cloud, and Public Sector Cloud. Public Sector Solutions ...

Senior Staff Engineer - Global Payroll

Hiring Organisation
Rippling
Location
London, UK
Employment Type
Full-time
About RipplingRippling gives businesses one place to run HR, IT, and Finance. It brings together all of the workforce systems that are normally scattered across a company, like payroll, expenses, benefits, and computers. For the first time ever, you can manage and automate every part of the employee lifecycle … help make that vision a reality. In this high-impact role, you'll be at the center of transforming Rippling's global payroll engineering systems, leveraging and building AI-native solutions and modern engineering practices to unify and scale payroll operations across multiple countries. You'll play ...

Senior AI Software Engineer (Azure) - Cardiff

Hiring Organisation
Capgemini
Location
Cardiff, United Kingdom
Employment Type
Full Time
pick up new domains quickly and often. A multi-agent case-handling assistant for a public sector client, retrieving from several legacy systems of record, with full audit trails and human-in-the-loop approval on every outbound decision. A document-intelligence pipeline for a utilities client … decisions when working in regulated client environments. Mentor and pair with less experienced colleagues. Engineering Build and deploy agentic AI applications and multi-agent systems on Azure using Microsoft Foundry (formerly Azure AI Foundry) and the Azure AI Services portfolio, including Azure OpenAI, Azure AI Search and Azure ...

Senior C# Developer

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £416/day Inside IR35
join a strategic application modernisation programme. This role sits within a technology team responsible for evolving critical business applications, supporting a transition from legacy desktop solutions to modern web-based and cloud-enabled platforms. The successful candidate will work across the full software development lifecycle, contributing … Ability to work independently in a fast-paced environment Collaborative mindset and willingness to mentor junior developers Comfortable balancing support of legacy systems alongside modernisation initiatives GCS is acting as an Employment Business in relation to this vacancy. ...

Senior Solution Architect & Technology Consultant (Financial Services or Insurance)

Hiring Organisation
EPAM Systems Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Subject Matter Expert linking technology choices to business value for large-scale transformation programs Pragmatic problem-solving mindset with experience modernizing Legacy systems and translating strategy into executable outcomes Leadership skills with experience guiding distributed architecture and engineering teams to establish best practices and improve delivery performance ...

Senior Solution Architect & Technology Consultant (Financial Services or Insurance)

Hiring Organisation
EPAM Systems
Location
London, UK
Employment Type
Full-time
Subject Matter Expert linking technology choices to business value for large-scale transformation programsPragmatic problem-solving mindset with experience modernizing legacy systems and translating strategy into executable outcomesLeadership skills with experience guiding distributed architecture and engineering teams to establish best practices and improve delivery performanceExcellent client-facing ...

Salesforce Technical Lead (Senior Consultant)

Hiring Organisation
Bearing Point
Location
London, UK
Employment Type
Full-time
community of practice and staying current with Salesforce platform evolutionProvide 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 Salesforce ...

Senior Digital Developer – ODM

Hiring Organisation
NHS Blood and Transplant
Location
England, S75 3FG, Liverpool, L24 8RB, Birmingham, B15 2SG, London, NW9 5BG, SW17 0RB, Bristol, BS34 7QH, Barnsley, Manchester, M13 9LL, United Kingdom
Salary
£49387.00 to £56515.00
supportive, inclusive environment where innovation and collaboration are valued. This role offers the chance to work with cutting-edge technologies, contributing to systems that support organ and tissue donation and transplantation across the UK. Youll help modernise legacy systems, manage servers both on-premises … hybrid working and a culture that champions diversity, learning and personal growth, this is a meaningful career opportunity for developers who want to build systems that matter. This vacancy focuses on IBM Operational Decision Manager (ODM) Main duties of the job As a Senior Digital Developer, you will develop ...

Senior Data Solutions Engineer

Hiring Organisation
Zenzo Digital
Location
Peterborough, Cambridgeshire, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £62,000 per annum
Days Remote Up to £62kpa The role Our client is on a data transformation journey, moving from on-premise SQL Server and Oracle core systems to a modern cloud data platform (Snowflake). We need a Senior Data Solutions Engineer who can work across both worlds. You’ll look … good • Tune queries, integrations and workloads for performance and cost • Contribute to resilience, disaster recovery and business continuity • Document how legacy systems work and what depends on what, ready for migration Migrate from old to new • Review existing databases, interfaces and data flows, and simplify, consolidate ...

Data Engineer

Hiring Organisation
Octopus Energy
Location
London, UK
Employment Type
Full-time
drive significant advancements in our business operations and technology landscape. Our primary goal is to transition from our current reliance on legacy systems and specialized off-the-shelf tools to a more integrated, AI-driven, and data-centric operational model. Leveraging insights and guidance from our other … into an efficient, data-driven organization. About the roleWe're looking for a Data Engineer who can own the journey of data from source systems to decision-ready outputs. You'll build and maintain pipelines, model data, stand up dashboards, and integrate systems via APIs. In a team ...

Java Developer

Hiring Organisation
Halian Technology Limited
Location
Bracknell, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
trusted technology partner to major NHS Trusts , with its platform now widely used by clinicians across the UK. Replacing outdated legacy systems with intuitive, user-centric tools, they are improving how healthcare teams operate and ultimately enhancing patient outcomes. With multiple industry awards , major contracts secured … platform and wider engineering function. Youll join a high-performing team of 20+ engineers , working on a mix of greenfield and evolving systems , contributing across a full-stack, microservices architecture . This is more than just a coding role its an opportunity to build technology that directly improves lives ...

Delivery Manager

Hiring Organisation
TALENT INTERNATIONAL UK LTD
Location
Manchester, North West, United Kingdom
Salary
£550.00 - £600.00 per day
. Working familiarity with the Government Data Quality Framework, Algorithmic Transparency/AI Ethics, and NCSC security standards. Experience running legacy system migrations within central government environments. £550.00 - £600.00/day Talent International UK and it's subsidiaries, Digital Gurus, Infinite Talent and Rethink act as an employment ...

Data Architect

Hiring Organisation
Damia Group Ltd
Location
United Kingdom
Employment Type
Contract
Contract Rate
£650 - £750 per day
hunt for a Data Architect to design and oversee enterprise-scale data migration solutions, supporting the transition from legacy systems to modern cloud-based platforms. Key Responsibilities Design and oversee large-scale data migration solutions within cloud environments. Define and maintain solution architectures, technical designs and standards. ...

Java Developer Kafka API - Tech Consultancy

Hiring Organisation
Client Server
Location
London, England, United Kingdom
range of transformational projects for clients, mainly within the financial services sector and with a focus on Kafka messaging, migrating legacy systems to AWS and introducing CI/CD pipelines and cloud deployments.You'll join a collaborative team with a focus on engineering best practice and continuous … improvement of client systems; you will have lots of business and client exposure and continual learning and development opportunities.Location/WFH:There's a hybrid work from home policy with three days a week in the London, City office (or at client sites), you'll join a friendly, diverse ...

Java Developer Kafka API - Tech Consultancy

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
range of transformational projects for clients, mainly within the financial services sector and with a focus on Kafka messaging, migrating legacy systems to AWS and introducing CI/CD pipelines and cloud deployments. You'll join a collaborative team with a focus on engineering best practice … continuous improvement of client systems; you will have lots of business and client exposure and continual learning and development opportunities. Location/WFH: There's a hybrid work from home policy with three days a week in the London, City office (or at client sites), you'll join ...

Senior Fabric Data Engineer - £500/pd Outside IR35

Hiring Organisation
Tenth Revolution Group
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£500.00 per day
large-scale data integration and synchronisation challenges. Strong understanding of data architecture, data pipelines, and reporting platforms. Ability to quickly understand legacy systems and complex data structures. Excellent stakeholder management and communication skills. Experience working in fast-paced environments with critical business deadlines. Desirable Experience Experience supporting … regulatory or compliance-driven reporting. Experience modernising legacy data platforms. Exposure to pension, financial services, or highly regulated environments. Experience delivering cloud-based data transformation programmes. Contract Details 6-month initial contract £500 per day Outside IR35 Fully remote within the UK Immediate start available This ...

Site Forward Deployed Engineer

Hiring Organisation
GSK
Location
County Durham, United Kingdom
Employment Type
Full Time
opportunities into clearly framed, measurable use cases and executable technical solutions. Design, build and validate working PoCs, PoVs and MVPs using real site data, systems and workflows, with delivery measured in days or weeks rather than extended discovery cycles. Provide hands-on engineering across AI, data, integration, applications … respective GSK & GSC product teams to transition validated solutions for industrialization, scaling, operational support and lifecycle ownership. Resolve deployment barriers across legacy systems, fragmented data, integration, security, compliance and local operating processes in collaboration with site and product teams. Convert site-specific learning into reusable agents, integration ...

Site Forward Deployed Engineer

Hiring Organisation
GSK
Location
Hertfordshire, United Kingdom
Employment Type
Full Time
opportunities into clearly framed, measurable use cases and executable technical solutions. Design, build and validate working PoCs, PoVs and MVPs using real site data, systems and workflows, with delivery measured in days or weeks rather than extended discovery cycles. Provide hands-on engineering across AI, data, integration, applications … respective GSK & GSC product teams to transition validated solutions for industrialization, scaling, operational support and lifecycle ownership. Resolve deployment barriers across legacy systems, fragmented data, integration, security, compliance and local operating processes in collaboration with site and product teams. Convert site-specific learning into reusable agents, integration ...

Senior Technical Lead

Hiring Organisation
Damia Group Ltd
Location
United Kingdom
Employment Type
Contract
Contract Rate
£550 - £650 per day
major technical issues. Drive improvements in security, resilience, CI/CD, automation, testing, observability and reuse. Maintain oversight of technical risk, debt, legacy technology and application lifecycle. Develop technical improvement and modernisation roadmaps. Improve collaboration between Build and Run teams. Coach and mentor engineers, creating stronger technical ownership … across multiple applications or engineering teams. Strong understanding of CI/CD, automation, secure development, testing and production services. Experience with legacy systems, technical debt and modernisation. Experience across both development and live-service/operational environments. Strong technical risk management and problem-solving skills. Excellent stakeholder ...

Oracle (HCM) Functional Consultant

Hiring Organisation
Morgan Law
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day
Public Sector organisation are seeking a HR Systems Analyst to provide technical analysis and business analysis skills on a HR Systems implementation programme. The HR System Analyst will play a key role in supporting the design, configuration and implementation of new Oracle Cloud HCM platform as part … wider transformation programme. This role will provide specialist technical expertise to help replace the current HR systems landscape with an integrated, secure and scalable Oracle-based solution to further improve the employee, manager and HR experience. Working closely with HR, IT, Finance, project resources and 3rd party specialists ...

Oracle (HCM) Functional Consultant

Hiring Organisation
Morgan Law
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£500.00 - £550.00 per day
Public Sector organisation are seeking a HR Systems Analyst to provide technical analysis and business analysis skills on a HR Systems implementation programme. The HR System Analyst will play a key role in supporting the design, configuration and implementation of new Oracle Cloud HCM platform as part … wider transformation programme. This role will provide specialist technical expertise to help replace the current HR systems landscape with an integrated, secure and scalable Oracle-based solution to further improve the employee, manager and HR experience. Working closely with HR, IT, Finance, project resources and 3rd party specialists ...

Software Engineering Lead

Hiring Organisation
Willis Towers Watson
Location
London, UK
Employment Type
Full-time
release practicesOversee database and schema evolution practices - migrations, data integrity, and performance - in partnership with platform and infrastructure teamsLead incident response for backend-owned systems - triage, escalation, post-incident reviews, and runbook qualityMentor engineers on PHP (Yii/Yii2), Go, Security, Performance and Optimisation - raising the bar through design … relevant to your squad - backend, frontend, mobile, quality, or platform operations - with solid breadth across design, build, test, and runTrack record of owning production systems end-to-end: implementation, rollout, monitoring, incident response, and follow-upExperience leading technical delivery on complex, ambiguous initiatives involving multiple engineers, dependencies, or teamsStrong ...

Data Architect

Hiring Organisation
Tria
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £730/day
year technology modernisation programme, backed by substantial investment and strong support from the leadership team. The business is moving away from legacy systems and investing heavily in modern architecture, cloud technologies, automation and better use of its data. With the initial discovery phase complete, the programme … What you'll be doing Defining and evolving the organisation's data architecture as part of a wider technology transformation. Assessing existing data platforms, systems and integration patterns, identifying opportunities for modernisation. Designing scalable, secure and well-governed data architectures that support future business requirements. Working closely with enterprise ...

Solutions Architect

Hiring Organisation
Computer Futures
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£575 - £650 per day
Solutions Architect required for an initial 6-month contract with a well-established global organisation undergoing a major technology transformation and legacy systems modernisation programme. Working within a predominantly Microsoft technology environment, you will play a key role in defining solution architecture, supporting the migration of legacy … across transformation and modernisation initiatives. Produce high-level and low-level solution designs to support business and technical requirements. Support the migration of legacy applications and platforms to modern cloud-based solutions. Ensure solutions align with architectural standards, security requirements, and business objectives. Collaborate closely with business stakeholders ...

Software Engineer (AI-Native)

Hiring Organisation
Global
Location
Greater London, United Kingdom
Employment Type
Full Time
Grafana). Much of our estate is Java 21 and Spring Boot, but we care more about how you design, reason about and operate systems than about which language you write them in. We embrace modern AI coding tools in our daily workflow. With AI writing more … also help decide what should be shared across markets and what needs to be configured per market. · Accelerating IT transformation. Replace legacy systems and manual processes with modern, reliable services. That gets new commercial products to market faster, protects revenue from outages, cuts the cost ...