1 to 25 of 338 Permanent Legacy Systems Jobs in London

layer serving tens of millions of customer accounts across five markets — the backbone that lets every customer sign in, stay secure, and trust the systems behind every interaction with Tesco, in-store and online.We're looking for a Product Manager to own strategy and roadmap for a core part … that platform's data foundations: the systems that master, structure, and serve the datasets underpinning identity at scale. This is a genuinely technical product role — you'll work daily with engineering on legacy-to-modern migrations, large-scale data system design, and the quality and reliability that ...

experiences. Your Role And Responsibilities As an Application Architect specializing in Application Modernization, you will design and guide the transformation of legacy systems into modern, scalable, and cloud-native architectures. You will combine deep technical expertise with strategic vision to ensure that applications are restructured, replatformed … business needs and future growth. Your Primary Responsibilities Will Include Lead End-to-End Architecture: Design and guide the transformation of legacy systems into modern, scalable, and cloud-native architectures across cloud platforms, including AWS, Azure, IBM Cloud, and Google Cloud. Design Microservices and APIs: Create microservices ...

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 ...

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 ...

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 ...

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.Manage multiple tasks … develop expertise.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, and data loading ...

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 ...

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 ...

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 ...

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 ...

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 ...

long-term maintainability Guide API and domain design standards - clear service boundaries, consistent contracts, and pragmatic integration between modern services and legacy systems Shape event-driven and integration patterns so teams can build independently without breaking cross-squad journeys Champion automated testing, observability, and production readiness … Oversee database and schema evolution practices - migrations, data integrity, and performance - in partnership with platform and infrastructure teams Lead incident response for backend-owned systems - triage, escalation, post-incident reviews, and runbook quality Mentor engineers on PHP (Yii/Yii2), Go, Security, Performance and Optimisation - raising the bar through ...

Bank investment. Success means delivering a digital-first operating plan that improves customer journeys and releases new features while strengthening resilience evergreening critical systems and control effectiveness. You’ll work closely with UK Business Banking leadership and the UK CIO and partner with regional and global teams to modernise … decommission legacy systems and progress cloud adoption and agile ways of working. You’ll also create synergies across UK Technology, including Retail Banking and Wealth to simplify technology stacks and progress platform and architectural convergence. What You'll Be Doing Own UK Business Banking technology delivery ...

services sector.As a Principal Backend 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 … Leading technical projects and client engagements from design through to deliveryDeveloping scalable Java applications using Spring Boot and microservicesModernising and migrating legacy systems to AWSDesigning and working with REST APIs and distributed systemsIntroducing and improving CI/CD and DevOps practicesProviding technical expertise and guidance to clients ...

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 ...

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 ...

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 ...

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 ...

established, multi-site retail business to recruit an ERP Applications Manager, to oversee a major technology transformation, supporting the transition from legacy systems to a new ERP platform while maintaining the stability of existing business applications. The role will lead a team of Analysts and oversee … highly desirable. Bachelor's degree in IT, Computer Science, or a related field, or equivalent experience. Experience supporting and transitioning legacy systems during major technology migrations. Good knowledge of enterprise architecture, system integrations, APIs, ETL and data governance. Proven ability to lead technical teams and manage multiple ...

protect democracies and support sovereign decision‐making while addressing the ethical implications of powerful technologies. Задачи Integrate state-of-the‐art software into complex systems and challenging operational environments Define and execute end‐to‐end outcomes for delivering novel capabilities Collaborate with customer avionics engineers to understand aircraft mission … features directly to users Coordinate customers, partners, and Helsing engineers during technology demonstrations Showcase Helsing's software and AI capabilities in simulations or real systems Требования Degree in computer science, software engineering, electrical engineering, or another relevant field Broad understanding and creative use of computer systems Curiosity ...

layer serving tens of millions of customer accounts across five markets — the backbone that lets every customer sign in, stay secure, and trust the systems behind every interaction with Tesco, in-store and online. We're looking for a Product Manager to own strategy and roadmap for a core … part of that platform's data foundations: the systems that master, structure, and serve the datasets underpinning identity at scale. This is a genuinely technical product role — you'll work daily with engineering on legacy-to-modern migrations, large‐scale data system design, and the quality ...

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 ...

risk Communicate effectively across organisational, technical and political boundaries, making complex technical information accessible for non-technical audiences Design how to expose data from systems (APIs, real-time streams), link data from multiple systems, and deliver modern data services Ensure that risks associated with deployment are adequately understood … data solutions from requirements through implementation, including technical documentation and architecture blueprints Lead complex data migration projects from legacy systems to modern cloud-native platforms Evaluate and recommend appropriate technologies across the modern data stack to meet specific client needs Mentor junior team members and collaborate with ...

risk Communicate effectively across organisational, technical and political boundaries, making complex technical information accessible for non-technical audiences Design how to expose data from systems (APIs, real-time streams), link data from multiple systems, and deliver modern data services Ensure that risks associated with deployment are adequately understood … data solutions from requirements through implementation, including technical documentation and architecture blueprints Lead complex data migration projects from legacy systems to modern cloud-native platforms Evaluate and recommend appropriate technologies across the modern data stack to meet specific client needs Your Impact: Enable transformative business decisions through ...

Lead Are you passionate about designing and deploying intelligent machine learning solutions that drive business impact? Do you enjoy leading teams, building scalable ML systems, and turning complex data into innovative products and services? About the team: We are a software engineering team responsible for developing and supporting business … Engineering, supporting production AI/ML, LLM/RAG, and agentic workflow capabilities for legal content products. In addition to writing code on complex systems, this position provides technical direction on architecture, MLOps, responsible AI, legacy system integration, AWS-based delivery, and AI-assisted development practices. ...