126 to 150 of 534 Legacy Systems Jobs in England

desktop and cloud applications using modern software engineering practices (design patterns, SOLID principles, automated testing, continuous integration/delivery). Modernize legacy systems — Lead migration of mature C/C++ codebases to modern languages, runtimes, and UI/UX frameworks while preserving scientific accuracy and performance. Leverage … control (Git), and code review workflows. Hands-on CI/CD experience — building, configuring, or maintaining automated build and deployment pipelines. Experience modernizing legacy software — migrating codebases from older languages or frameworks to current platforms, including UI/UX modernization. Self-motivated and collaborative; thrives in a team ...

desktop and cloud applications using modern software engineering practices (design patterns, SOLID principles, automated testing, continuous integration/delivery). Modernize legacy systems — Lead migration of mature C/C++ codebases to modern languages, runtimes, and UI/UX frameworks while preserving scientific accuracy and performance. Leverage … control (Git), and code review workflows. Hands-on CI/CD experience — building, configuring, or maintaining automated build and deployment pipelines. Experience modernizing legacy software — migrating codebases from older languages or frameworks to current platforms, including UI/UX modernization. Self-motivated and collaborative; thrives in a team ...

Business Unit: Cubic Transportation Systems Company Details: Responsible for delivery of Paginated and Crystal/BOBJ Reports as well as stored procedure development. The candidate will meet with the business users to qualify requirements for reports, create reports from scratch, and take existing reports and improve their performance. This … innovation and development whilst promoting and delivering best practice in the business intelligence field. This will also include the improvement of legacy systems whilst designing for the future by utilizing the latest tools, processes and disciplines in Business Intelligence. This position works under limited supervision and exercises ...

technology stack, including the engineering and customisation of Braze, the platform we use for customer engagement. The mandate is modernisation and reliability: re-architecting systems that have grown very quickly and making them dependable at a scale of more than 20 million users. This is a platform engineering … organisation through other engineering leaders, rather than running a single team. You have proven platform engineering experience at scale — building and running complex distributed systems, not feature delivery alone. You have navigated legacy migrations and re-architecture projects at 20M+ user scale. You have strong backend engineering ...

Migration Lead, you will be responsible for leading the end-to-end migration of finance data, ensuring a successful transition from legacy systems to Oracle Fusion. Working closely with Finance, Digital Technology, business stakeholders, and implementation partners, you will oversee migration planning, data quality, testing, reconciliation, cutover … this drives our excellence. Guided by our values and alignment with the UN Sustainable Development Goals, we create and contribute to equitable spaces and systems, while cultivating a sense of belonging for all. Our internal employee networks support our inclusive culture: from race, ethnicity and cross-cultural working ...

management activities with internal and external stakeholders. Lead the design of scalable, modular, and resilient BSS/OSS solutions, integrating with legacy systems and modern platforms. Oversee solution architecture workstreams across multiple delivery teams and ensure consistency with target state architecture. Translate business and operational requirements into ...

migration workstream of the IFS Cloud programme. You'll ensure data is accurately extracted, cleansed, transformed, validated and successfully migrated from legacy systems into IFS Cloud, while maintaining high standards of data quality, security and integrity. What you'll be doing Administer and maintain Oracle and Microsoft ...

investment management with the industry's most comprehensive cloud-native platform for institutional investors across global public and private markets. While legacy systems create risk, inefficiency, and data fragmentation, Clearwater's single-instance, multi-tenant architecture delivers real-time data and AI-driven insights throughout the investment ...

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 ...

workloads into independent steps orchestrated by managed workflow services and triggered by data events. Migration & Testing Experience: Experience with safely modernizing legacy systems using parity testing and incremental routing patterns. IaC & Containerization: Hands-on experience packaging runtimes into portable containers and provisioning cloud resources using modern Infrastructure ...

unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process. Systems Accountant Full Time Little Russell St, London, City of, GB COMPANY OVERVIEW Markmonitor Group, is a premier provider of enterprise domain portfolio management, brand protection, domain … footprint involves cross-border transactions, digital services delivery, intellectual property management, and compliance with diverse regulatory and tax regimes worldwide. JOB SUMMARY The Group Systems Accountant is the single accountable owner of Microsoft Dynamics 365 Finance across Markmonitor Inc. and the Com Laude Group. The role sits ...

Technology portfolio; translate business intent into a concrete, milestone-driven execution roadmap with measurable outcomes* Develop architecture blueprints and end-to-end systems design for Generative AI and agentic workflows across diverse operational domains* Build the shared AI platform — reusable models, tooling, guardrails, evaluation frameworks, and accelerators — that reduces … prompt engineering, retrieval-augmented generation (RAG), vector database design, and evaluation methodologies. You understand how models behave in production, not just in demos.* Agentic Systems Design:Proven experience designing and deploying multi-agent architectures and orchestration frameworks (e.g., LangGraph, AutoGen, CrewAI); tool-use patterns, human-in-the-loop workflows ...

seen what technology can do. Now, imagine building the systems to make it happen from the ground up. An organisation dedicated to building public trust and setting professional standards is at a crossroads. Despite their critical mission, they’ve never had a dedicated Business Analysis team. Instead, this … enhance user experience. It’s not just about solving today’s technology challenges, you’ll be reshaping how the organisation operates, turning aging systems into a strategic asset that drives trust, efficiency, and innovation. Why this role stands out: This isn’t about maintaining systems and processes ...

Employment type: Permanent, Full time A specialist engineering manufacturer is looking for a Control and Automation Engineer to develop, improve and support the control systems used across its expanding product range. This is a varied engineering role combining controls hardware, software development, user-interface design and system integration. … support existing and legacy control systems. The company is open-minded regarding your technical background. You could come from PLC automation, embedded systems, industrial software or a combination of these areas. The role will include: Designing control and automation systems for new products Developing software applications ...

Employment type: Permanent, Full time A specialist engineering manufacturer is looking for a Control and Automation Engineer to develop, improve and support the control systems used across its expanding product range. This is a varied engineering role combining controls hardware, software development, user-interface design and system integration. … support existing and legacy control systems. The company is open-minded regarding your technical background. You could come from PLC automation, embedded systems, industrial software or a combination of these areas. The role will include: Designing control and automation systems for new products Developing software applications ...

incumbent payroll provider to a new provider. You’ll lead the payroll data workstream, ensuring accurate extraction, mapping, cleansing, validation, and migration across multiple systems including Workday, UKG, and the new payroll platform. Key Responsibilities Data migration leadership — Own the payroll data migration strategy, plans, timelines, and delivery. Data … analysis & cleansing — Perform detailed validation, reconciliation, and quality checks. Data mapping — Map data between legacy systems, UKG, Workday, and the new provider. Migration cycles — Execute mock migrations, testing cycles, and final cutover. Issue resolution — Identify and resolve data discrepancies and risks. Testing support — Support UAT, parallel runs ...

quality in line with Global Master Data Governance rules. Oversee the Extract, Transform, Load (ETL) processes, ensuring smooth data transfer from legacy systems to SAP S/4HANA. Ensure data quality and perform data cleansing activities to maintain high standards and create and maintain data mapping documents … guide the migration process. Local Application Management/Integration: Manage and integrate local applications with SAP systems, ensuring seamless data flow and system interoperability. Utilize SAP Integration Suite and other tools to connect applications, data, and users effectively. Develop and maintain integration architecture to support business processes and data ...

shipped production‐grade platforms: the reusable foundations, tools, infrastructure, and workflows that help other teams shift faster and more reliably Taken AI and agentic systems from prototype to production, with a strong understanding of infrastructure, authentication, and observability Delivered on high‐stakes consulting engagements across multiple language paradigms, stacks … record of understanding, assessing, and embracing new tooling and trends within the software industry Built or integrated AI/ML features into products and systems, including recommendation engines, NLP, computer vision, predictive analytics, RAG pipelines, and agents Successfully led modernisation and replatforming efforts to align legacy systems ...

Physical Electronic Security Systems Genetec EngineerSalary Range: CompetitiveLocation: City of LondonThe RoleWe are seeking an experienced Genetec security engineer to play a pivotal role within a client team based in the City of London. You will oversee and drive the successful mobilisation and delivery of access control and CCTV … projects across the client's portfolio. This position will involve supporting enterprise-level application implementations, managing migrations from legacy systems, and providing expert troubleshooting. The ideal candidate must excel in multitasking and thrive in a fast-paced, dynamic environment. This is an on-site role requiring ...

team at Reassured. You’ll play a key role in evolving our internal CRM platform, taking ownership of complex features and helping shape the systems that support a fast-paced, highly regulated business. Working within a collaborative Scrum team, you’ll balance hands‐on development with technical leadership, influencing … driving high‐quality, scalable solutions across the team. Responsibilities What you’ll be doing Support in the design and implementation of robust, scalable backend systems using PHP (Laravel/CakePHP). Take ownership of features from concept through design, development, testing, and deployment. Improve and refactor legacy ...

evolving a global finance function within a complex, multi-entity organisation. This role sits at the intersection of financial operations, commercial insight, and systems architecture. You will be instrumental in consolidating data across a complex legacy systems landscape, building commercial intelligence platforms, and stress-testing financial … design and implement governance frameworks, processes, and methodologies, the real impact comes from validating what works; challenging assumptions with rigor, and build systems that connect sources into a single source of truth for the business. Key Responsibilities: Design and deliver a consolidated financial reporting platform, bringing together data from ...

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 ...

maintain enterprise architecture frameworks, principles, and standards (TOGAF aligned)Lead architecture for insurance transformation programs (Claims, Underwriting, Policy Administration)Assess legacy systems and design modernization strategies, target architectures, and transition roadmapsDevelop enterprise-wide technology roadmaps aligned with business strategyDrive architecture governance, standards, and decision-making forumsProvide architectural … ITYour Profile6 - 10 years of Enterprise Architecture experienceStrong insurance domain expertise (commercial, specialty, and captive insurance)Proven experience in application transformation and legacy modernizationDeep knowledge of core insurance platforms (Claims, Underwriting, Policy Administration)Strong understanding of integration patterns (APIs, microservices, event-driven architecture)Experience with data platforms (data ...

maintain enterprise architecture frameworks, principles, and standards (TOGAF aligned)Lead architecture for insurance transformation programs (Claims, Underwriting, Policy Administration)Assess legacy systems and design modernization strategies, target architectures, and transition roadmapsDevelop enterprise-wide technology roadmaps aligned with business strategyDrive architecture governance, standards, and decision-making forumsProvide architectural … ITYour Profile6 - 10 years of Enterprise Architecture experienceStrong insurance domain expertise (commercial, specialty, and captive insurance)Proven experience in application transformation and legacy modernizationDeep knowledge of core insurance platforms (Claims, Underwriting, Policy Administration)Strong understanding of integration patterns (APIs, microservices, event-driven architecture)Experience with data platforms (data ...

strategy, delivery, and scale across low-latency trading systems. This hire will drive a major AWS migration, build greenfield environments, modernise legacy systems, and shape the long-term engineering roadmap. You'll lead a small but senior infrastructure function with real autonomy and impact. The RoleOwn infrastructure … Direct Connect, Transit Gateway, CloudFormation)Networking: BGP, OSPF, MPLS, VLANs, VPNs, SD-WANFirewalls and network security (Cisco ASA, Fortinet or similar)Linux and Windows systems engineeringMicrosoft services and identity (AD/Entra ID)CI/CD (GitLab CI or similar)IaC and automation (CloudFormation, Ansible, Terraform)Monitoring/Observability ...