1 to 25 of 26 Contract Legacy Systems Jobs in London

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 ...

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 ...

modules. This role will provide dedicated programme management leadership across the technical delivery of the programme, helping to replace a manual and intensive HR systems offering with an integrated, secure and scalable Oracle-based solution. A key focus of the role will be maintaining delivery momentum in a complex … Programme Manager will help ensure the programme delivers the intended operational, financial and strategic benefits, while supporting a smooth transition from legacy systems to the new Oracle HCM environment. This role will require the following experience: Successful experience of delivering Oracle HCM system implementations, ideally within ...

modules. This role will provide dedicated programme management leadership across the technical delivery of the programme, helping to replace a manual and intensive HR systems offering with an integrated, secure and scalable Oracle-based solution. A key focus of the role will be maintaining delivery momentum in a complex … Programme Manager will help ensure the programme delivers the intended operational, financial and strategic benefits, while supporting a smooth transition from legacy systems to the new Oracle HCM environment. This role will require the following experience: Successful experience of delivering Oracle HCM system implementations, ideally 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 ...

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 ...

Lead Data Engineer Hands-on technical leadership building data systems that actually work We're looking for a Lead Data Engineer to join an enterprise data engineering capability and play a critical role in designing, building, and improving real-world data systems . This is not a line … engineers and adjacent roles through design decisions, code, and delivery support Improve data sharing, onboarding of new data sources, and interoperability across teams and systems Introduce and evaluate new tools, patterns, and technologies where they genuinely add value - balancing innovation with pragmatism Build robust, production-grade solutions , not proofs ...

PowerServer Engineer to support audit, investigation, and strategic planning activities related to our existing PowerBuilder/PowerServer applications. The ideal candidate will assess current systems, identify gaps, and provide actionable recommendations for optimization, modernization, or migration. Key Responsibilities Perform comprehensive audit and assessment of existing PowerServer/PowerBuilder applications … auditing, system analysis, or consulting roles Solid understanding of Client Server and web-based architectures Experience in performance tuning and troubleshooting Knowledge of database systems (SQL Server, Client, etc.) Ability to analyze Legacy systems and recommend modernization approaches Strong documentation and reporting skills Excellent problem-solving ...

delivery flow. * Support effective agile ways of working, including planning, ceremonies, prioritisation and delivery discipline. * Manage dependencies across other SAP workstreams, legacy systems, integration points, data migration activities, and third-party suppliers. * Proactively identify, manage, and escalate risks, issues, and decisions, driving timely mitigation and resolution. Assess ...

understanding of working in secure, regulated, or classified environments Ability to work effectively within structured delivery frameworks Desirable Experience with large-scale or legacy system migration to cloud Knowledge of data governance, security, and compliance in public sector environments This role offers an immediate start for the right ...

technical solutions. Nice to have: Experience working in secure or highly regulated environments. Knowledge of secure coding practices and compliance standards. Experience supporting legacy and modern hybrid systems. If you're interested in this role, click 'apply now' to forward an up-to-date copy of your ...

standards, contributing to solution design, and ensuring all changes are appropriately documented and controlled. You will also support integration activity between Salesforce and surrounding systems, using appropriate integration patterns to enable seamless data and process flow across the wider enterprise landscape. Strong collaboration across internal teams and external partners … Cards, DataRaptors, and Integration Procedures) will be highly advantageous, particularly in enterprise-scale implementations. Additional experience integrating Salesforce with external or legacy systems is important, along with exposure to identity and verification tools such as Onfido or Experian being a plus. Relevant Salesforce certifications, including Administrator, Platform ...

without waiting to be directed. The role: You'll be embedded in a new squad focused on migrating data flows from legacy systems into SAP RISE. Your job is to own discovery end-to-end: understand the current state, define the future state, write the PRDs ...

Platform ecosystem, including RM Workbench, Middleware, and digital channels Develop and maintain APIs and event-driven integrations to enable Real Time data exchange across systems Enable seamless data flows to support client 360 views, portfolio insights, and transaction processing Contribute to core banking modernisation by decoupling product and data … layers from Legacy systems Support the implementation of a dynamic operational data layer to enable Real Time data consumption Ensure data quality, consistency, lineage, and compliance with regulatory requirements Enable end-to-end wealth journeys including onboarding, financial planning, portfolio management, and trading Support straight-through processing ...

client who are seeking an experience Enterprise Architect with strong background in leading the architectural design for the replacement of legacy systems (ORACLE) Key Responsibilities: 'As-Is' Architecture Baseline Target State Design Integration Strategy & API Design Transition & DE-risking Strategy Data Modelling & Master Data Management You will ...

supporting modern data platform, with a particular focus on Databricks, cloud-based data engineering, and leading the migration of legacy Oracle systems into scalable, cloud-native environments. The role supports the organisation's data strategy especially on Finance and Regulatory domain by ensuring high-quality, reliable pipelines … environment management. Ensure governance, performance optimisation. Legacy Oracle Migration Leadership Lead and coordinate the migration of data assets from Oracle database systems to the modern cloud data platform. Oversee source-to-target mapping, data model redesign, and automated migration frameworks. Define strategy for retiring legacy ...

modernise a core operational platform. Central to this is the design and build of a new, secure application and data environment, replacing a legacy system that has been in place for a number of years. This is a high-stakes programme operating within a sensitive environment. The organisation ...

essential Strong track record of implementing Xero for small business clients Experience supporting clients through full Xero setup and migrations from legacy systems Ability to troubleshoot and resolve complex Xero-related issues Experience delivering structured training to internal or external stakeholders Excellent communication skills, with the ability ...

essential Strong track record of implementing Xero for small business clients Experience supporting clients through full Xero setup and migrations from legacy systems Ability to troubleshoot and resolve complex Xero-related issues Experience delivering structured training to internal or external stakeholders Excellent communication skills, with the ability ...

Specific Experience (Highly Desirable) Whilst ERP experience is a must, direct experience building integrations out of Infor LN (or legacy Baan systems). Familiarity with Infor LN’s database schemas and functional tables (Finance, Logistics, Procurement, Warehousing, or Manufacturing modules). Understanding of how Infor LN interacts ...

readiness across all domains, delivery phases, and regions. This will include the delivery of data from the various, internationally disparate legacy IT systems (including SAP R3/BO) to the new IFS solution. Both a business data workstream and a technical IFS data migration workstream ...

execution for a large-scale Oracle Fusion HCM transformation. This role will ensure a controlled, low-risk transition from legacy HR systems into Oracle Cloud, coordinating across multiple work streams and stakeholders. * Location: Uxbridge * Daily Rate: Flexible * Contract Length: Sep 2027 * Start Date: ASAP Key Responsibilities * Develop ...

enables secure digital services, improves user experience, and supports long-term organisational objectives. The organisation currently operates a complex identity ecosystem comprising a legacy Student Information System (SIS), Active Directory, Microsoft Entra ID, and Auth0, with multiple identity stores and overlapping user management processes. Key Responsibilities Lead … technical assessments to understand current-state identity capabilities and challenges. Assess the existing identity architecture, including Active Directory, Microsoft Entra ID, Auth0, and legacy SIS integrations. Define a target-state identity operating model and architecture aligned to business and security requirements. Evaluate identity platform options and market offerings ...

Capital Markets. You will join a high-calibre London-based front office engineering team working on a next-generation issuance platform replacing a legacy bookbuilding system. This is a hands-on engineering role with a strong emphasis on Extreme Programming (XP) practices, including mob programming, test-driven development … store Artifact Registry and Cloud Logging Key Management Experience with CI/CD and SDLC in regulated or enterprise environments Comfortable working on production systems requiring high availability and accuracy Engineers in this role: Work primarily in mobs, sharing ownership of design and code Build, test, and evolve services ...

enables secure digital services, improves user experience, and supports long-term organisational objectives. The organisation currently operates a complex identity ecosystem comprising a legacy Student Information System (SIS), Active Directory, Microsoft Entra ID, and Auth0, with multiple identity stores and overlapping user management processes. Key Responsibilities Lead … technical assessments to understand current-state identity capabilities and challenges. Assess the existing identity architecture, including Active Directory, Microsoft Entra ID, Auth0, and legacy SIS integrations. Define a target-state identity operating model and architecture aligned to business and security requirements. Evaluate identity platform options and market offerings ...