10 of 10 Contract Legacy Systems Jobs in London

Title: Systems Engineer Location: Remote + Quarterly Planning Sessions in Bristol Remuneration: £600 per day via Umbrella Company Contract Details: Temporary - 6 Months (Scope for Extensions) Responsibilities: Our client is seeking a talented Systems Engineer to play a pivotal role in a transformative modernisation programme. The organisation … replacing ageing on-premises systems with a cutting-edge cloud-native architecture within a greenfield AWS environment. This is an exciting opportunity to contribute to significant advancements in technology and operational excellence. Key responsibilities include: Analysing and understanding existing legacy systems and infrastructure. Collaborating with stakeholders ...

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. ...

Define data standards, modelling practices and governance frameworks. Work closely with Data Engineers, Solution Architects and business stakeholders. Support migration from legacy systems to modern cloud-based data platforms. Perform source-to-target mapping and data lineage analysis. Define metadata, data quality and governance requirements. Produce architecture ...

high-quality, well-structured datasets. Contribute to data migration and transformation activities, ensuring data accuracy, integrity, traceability and auditability throughout the transition from legacy systems. Apply security-by-design principles, including appropriate access controls, governance and logging, in line with the requirements of regulated MOD environments. Work within ...

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 ...

Platform, Process A leading global organisation operating within complex physical market and trading environments is seeking a Business Analyst to join its Transformation and Systems function.This role will support the delivery of a significant strategic transformation programme, focusing on both the implementation of a new strategic platform … Improvement, Change or Transformation roles - max experience up to 7-8 years Experience within Commodities is a must Experience working with legacy systems Platformmigration experience Financial services experience Experience gathering and documenting business requirements, process maps, and stakeholder needs. Good understanding of operational process ...

Analysis: Monitor data flow to ensure security policies do not break business applications. Risk Mitigation: Isolate critical assets, IoT devices, and legacy systems from the main corporate network. Collaboration: Work with security teams to respond to incidents and audit network boundaries. Essential 5+ years' experience in enterprise ...

between Finance, Projects, Enterprise Asset Management and Service & Maintenance, ensuring operational activity flows accurately into financial reporting and billing. - Leading the architecture for legacy finance system decommissioning, including data migration, opening balances, reconciliation and cutover. - Managing statutory and fiscal localisation requirements across Europe and the Americas, including … architectural decision-making. - Experience with legacy finance migrations, data reconciliation and cutover planning. - Strong stakeholder management skills, with the confidence to challenge systems integrators, senior stakeholders and local business teams. We're looking for someone who has genuinely owned the architecture of a complex international ERP programme ...

integration, and manage reusable skills and instructions. SDLC Integration: Apply AI across the full software lifecycle, including test generation, code review augmentation, documentation, legacy comprehension, and modernisation. AI Tooling & Ecosystem: Leverage and integrate AI coding and agent tooling such as Claude Code, GitHub Copilot, Codex, Kiro … coaching and running champions networks. Security Clearance: Must hold an active SC clearance. Desirable Criteria Background in software engineering for large-scale production systems, sufficient to seamlessly embed within technical delivery teams. Apply now for immediate consideration. ...

integrations, identify security gaps and help deliver improvements. Alongside this, you'll shape new customer portals and ecommerce functionality, supporting the replacement of legacy systems. This Ecommerce & Payments Technical Lead role offers the opportunity to tackle immediate payment fraud challenges while helping build secure, reliable online experiences … secure checkout journeys. Implementing payment integrations and digital wallet functionality. Guiding developers through technical design, implementation and testing. Supporting the replacement of legacy ecommerce functionality. What's in it for you? £500-£600 per day. Fully remote working. A 12-month contract. Ownership of meaningful ecommerce and payment ...