1 to 25 of 200 Legacy Systems Jobs in the UK

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 ...

efficient data ecosystem, playing a key part in bridging Data, IT Security, and Business Strategy. Youll lead the move away from legacy systems, embedding a modern lakehouse approach and ensuring our data operations are production-ready, governed, and built to scale. You will: Design and implement … lineage, and cataloguing tools Solid understanding of IT security principles (IAM, network controls, secure architecture) Experience leading large-scale migrations from legacy systems to cloud platforms The ability to translate complex technical challenges into clear, business-focused insights A passion for raising engineering standards and mentoring others ...

hub. This role is designed for a technical visionary capable of navigating large-scale enterprise environments while leading the transition from legacy systems to cloud-native, microservices-based architectures. As a Lead, you will bridge the gap between complex requirements and technical execution, taking direct responsibility … offshore development team of 20+ members, ensuring delivery excellence and code quality. Cloud Transformation: Lead the transition of hosting platforms from legacy systems to Kubernetes-based environments on GCP or AWS. Full-Stack Delivery: Architect and maintain robust, scalable applications using Java 17+ and Angular . Data ...

confidently govern third-party delivery to high standards. The Role You'll play a key role in designing and shaping scalable, resilient systems across e-commerce and integration platforms. Working closely with internal teams and external vendors, you'll ensure solutions are robust, secure, and aligned with long-term … third-party code and architecture to ensure adherence to defined standards and best practices. Integration Leadership: Lead complex data integrations between legacy systems and modern API-driven middleware environments. Problem Resolution: Investigate recurring system issues (e.g. performance, errors, data inconsistencies) and implement sustainable, long-term solutions. Documentation ...

supporting cloud-native engineering and helping deliver enterprise-scale technology initiatives. This will include projects involving the migration and modernisation of Legacy systems and platforms. What you'll be doing: Engineering and maintaining CI/CD pipelines Building Azure infrastructure using Terraform Supporting migrations from Legacy systems into modern cloud environments Driving automation and cloud best practice Improving reliability, security and deployment efficiency Working closely with engineering, infrastructure and security teams Supporting large-scale cloud transformation initiatives What we're looking for: Strong Azure DevOps/Cloud Engineering background Terraform and Infrastructure ...

Your new role We are seeking a hands-on UAT Test Manager to support a major SAP transformation programme, migrating from legacy systems into SAP Finance and Procurement. The role will focus on User Acceptance Testing (UAT) from a business perspective, ensuring that the SAP solution delivered … experience as a Test Manager within large-scale ERP transformations. Strong hands-on experience leading UAT for SAP implementations. Migrating from legacy systems to SAP. Experience across Finance, Procurement, and HR modules. Capability to operate in a hands-on capacity (test strategy, scripting, execution). Strong stakeholder ...

delivering FX technology in support of our #1 FX business. Role Overview/What will you do: Hands on technical implementation of FX trading systems The successful candidate will work with teams across FX Trading Technology implement solutions that benefit the business The role does not involve budget responsibility … Drive the design and development of system architecture, work with end-users of the systems, and enhance the quality of deliverables Ensure staff follows Citi documented policy and procedures as well as maintain desktop procedures and supporting documentation for filings on a current basis and in comprehensive manner Contribute ...

Payments to define and then implement solutions Develop against an evolving system architecture using an AI First approach, working with end-users of the systems, and enhancing the quality of deliverables Follow best practices and processes for the department and support transparency and consistency within immediate team … contact with sales or trading business teams is required. Demonstrable understanding of FX products is preferred. Proven track record of developing aspects of new systems, migrating legacy systems and renovating existing systems The candidate will have a strong systems (software, hardware, networks) knowledge required ...

Spring Boot, AWS Serverless (Lambda/Node.js) and Ruby on Rails with React Define integration patterns between modern services and Legacy Mainframe systems, supporting incremental modernisation Remain hands-on with code: contributing to critical paths, conducting code reviews, and pairing with engineers Own the technical roadmap … ends, or comparable full-stack experience and the ability to lead teams using these tools Strong grasp of integration patterns with Legacy systems (Mainframe, ESB, message-based, batch) and incremental modernisation strategies Solid understanding of secure-by-design principles, OWASP risks, and engineering for high-assurance environments ...

/CTO for SymphonyAI’s Supply Chain Division in EMEA, responsible for driving a multi-year transformation from legacy on-premise systems to a cloud-native, AI-first composable SaaS platform. Lead platform architecture, large engineering teams (150–300+), generative AI integration, client-facing technology engagements … based in EMEA (Paris headquarters) and includes global engineering leadership and client-facing responsibilities. Key Responsibilities Define and own the multi-year roadmap for Systems of Execution (WMS, TMS, OMS) and Systems of Intelligence (demand planning, supply optimization, decision analytics). Architect transformation from monolithic legacy ...

play a pivotal role. This is a high-impact position where you'll lead the end-to-end migration from legacy billing systems to a modern, scalable platform , while owning the digital billing experience across customer channels. You'll sit at the intersection of product, technology … billing migration strategy and execution Own the migration roadmap, including dependencies, risks, and key milestones Oversee transition from legacy systems with minimal/no customer disruption Ensure pricing integrity, service continuity, and regulatory compliance throughout Proactively resolve product, billing, and integration challenges Digital Product Ownership Own billing ...

client is a global software consultancy helping organisations build modern digital products, evolve legacy systems, and adopt strong engineering practices to improve delivery at scale. They are seeking a Contract Senior Data Engineer who treats data engineering as software engineering; focusing on quality, operability, and long-term … maintainability. Databricks is the primary platform, and fluency is expected, but the emphasis is on building robust data systems rather than tool-specific implementation. 6-month initial contract What You'll Need Strong data engineering experience with solid software engineering fundamentals Hands-on Databricks experience (Delta Lake, Unity Catalog ...

only by models, data, or compute. The harder problem is execution: how AI work actually runs inside an organization, alongside humans, legacy systems, outsourced teams, compliance requirements, and operational constraints. Noxus helps regulated enterprises redesign and run complex operations with AI workers. These workers do not just … answer questions. They read inbound requests, understand documents, gather evidence across systems, apply policies, request approvals when needed, and write outcomes back into core operational tools with full traceability. We are built for legacy-heavy environments where critical work runs across SAP, Oracle, CRM platforms, policy systems ...

data architecture. You will be responsible for helping shape Logical and Canonical Data Models (LDM/CDM), supporting the migration of legacy systems into a modern, scalable data environment and building high performance integration solutions across multiple business systems. The role is responsible for ensuring the optimal … ROLE AND RESPONSIBILITIES Collaborate with the Data Architect to design and deploy LDMs and CDMs, facilitating the decoupling of legacy core systems from modern SaaS endpoints Design, deploy, and monitor event-driven integration patterns using Azure Logic Apps, Functions, and Service Bus to manage transactional data ...

Architect to shape the technology behind our Gas & Power Trading International (GPTI) business. This role sits across the full trading landscape from front-office systems to back-office processing, data platforms, integrations and infrastructure. Youll take ownership of the technology roadmap, with a strong focus on the Endur … technology is aligned, scalable and fit for the future. Youll play a key role in modernising our estate moving from legacy systems to more cloud-based and hybrid solutions while keeping performance and reliability at the level required for real-time trading. Were also looking for someone ...

DevOps Engineer to join a growing engineering capability and play a central role in shaping how AI is embedded into real, production-grade software systems . This is not a traditional people-management role . Instead, you'll lead through technical depth, architectural judgement, and delivery experience by setting … capabilities are integrated into modern software platforms. If you enjoy working where architecture, APIs, DevOps, and AI meet , and you care about building systems that are secure, operable, and genuinely useful, this role offers the chance to have real impact. What you'll be doing Your focus will ...

position is available at the Belfast site for an IT in OT Specialist. You will plan and carry out activities to ensure the information systems inside production assets are well serviced, taking responsibility for IT deployment, machine software configuration, validation, scheduled maintenance and IT reactive maintenance - as well … upgrade and disposal of IT business owned software, business owned information systems hardware, business owned IT network devices as well as business owned operating systems. The IT in OT Specialist will play a key role in ensuring the Cyber Security of the Belfast site industrial assets. Additionally, and specific ...

only by models, data, or compute. The harder problem is execution: how AI work actually runs inside an organization, alongside humans, legacy systems, outsourced teams, compliance requirements, and operational constraints. Noxus helps regulated enterprises redesign and run complex operations with AI workers. These workers do not just … answer questions. They read inbound requests, understand documents, gather evidence across systems, apply policies, request approvals when needed, and write outcomes back into core operational tools with full traceability. We are built for legacy-heavy environments where critical work runs across SAP, Oracle, CRM platforms, policy systems ...

includes: Oversight of infrastructure, networks, cloud services, and business-critical applications, ensuring secure and reliable operations. Support for both legacy and modern systems, including ERP, CRM, Sage, Microsoft 365, and specialist software. Management and liaison with external providers, contractors, and internal teams to deliver IT solutions, support … user provisioning, group policies, account decommissioning, and organisational structure management. Configure and manage VLANs, switches, routers, firewalls, and wireless networks. Administer and support telephony systems, including Avaya onsite PBX, VoIP services, and phone recording/information requests. Provide support for audio-visual equipment, conferencing systems, and meeting room ...

summary The role is responsible for shaping and delivering a unified digital and innovation strategy, modernising legacy systems, and embedding a culture of digital excellence across the organisation. The role will ensure strong governance, cyber security, risk management, and supplier partnerships, while aligning IT investment to organisational … delivery of a robust technology strategy and enabling organisation-wide digital transformation. The postholder will oversee IT operations, digital services, and business intelligence, ensuring systems and infrastructure in place to support efficient, high-quality, and sustainable patient services. About us PML is a successful not-for-profit ...

environments Define, implement, and enforce robust SOPs for backups, disaster recovery, patch management, and hardware lifecycle Ensure reliable connectivity between legacy core systems and modern application platforms Oversee internal security monitoring and collaborate with external security partners (SOC/MDR) Lead incident and problem management activities, including … including incident, problem, and change management processes Experience with ITSM tools (e.g., Jira) and working within SLA-driven environments Familiarity with legacy systems connectivity (e.g., AS/400/iSeries) is highly beneficial ...

ownership of the technical foundations of our data platform – from ingestion and infrastructure to deployment – helping us move from legacy, on-premise systems to a modern, cloud-first data architecture. Working closely with the BI & Data Lead and an Analytics Engineer, you’ll be the primary architect … turning fragmented legacy data into a competitive, AI-ready asset. If you enjoy building things from the ground up, modernising complex systems, and shaping how data is used across a business, this role offers real ownership and influence. The Role - Data Engineer Designing a greenfield data platform ...

role Our client is looking to appoint a QA Analyst who can take real ownership of quality across a suite of business-critical systems, with a particular emphasis on performance, scalability, and system resilience as the organisation evolves its technology landscape. This role will sit at the centre … scale within an increasingly modern, Azure-led environment. It will suit someone who is comfortable working across both legacy and cloud-based systems, and who can bring structure, rigour, and measurable performance standards to how quality is defined and delivered. From day one, you'll be embedded ...

suite of high-impact initiatives, including the full implementation of MyPulse, a new Time & Attendance solution, and the decommissioning of legacy systems across a multi-site manufacturing environment. Your work will define how our people experience HR for years to come. This is your opportunity to lead … implementations and reporting. Desirable Experience CIPD Level 7 Hands-on experience implementing MyPulse (Compensation & HCM modules). Experience decommissioning legacy T&A systems, including data migration. Familiarity with deploying new clocking systems across multi-site manufacturing environments. The Impact You'll Make This role places ...

Owners to maintain a well-groomed backlog. Support delivery in client environments including: Working within client governance frameworks Managing dependencies with external suppliers and systems Ensure Agile practices are adapted appropriately for regulated defence programmes, including supporting RADIO management from a Scrum Manager perspective. Track and report delivery metrics … communication skills Desirable Experience Experience working within client programmes Knowledge of Client XX Digital standards or delivery frameworks Experience integrating: Legacy systems Cloud-native platforms (e.g., AWS-based solutions) Familiarity with DevSecOps practices in secure environments Scrum certifications (CSM, PSM, SAFU SM) Key Attributes Pragmatic Agile mindset ...