1 to 25 of 100 Permanent Legacy Systems Jobs in the UK excluding London

Business Systems Analyst Location: Pontefract, West Yorkshire Salary: Up to £60,000 per annum Job Type: Permanent, Full-Time This role is onsite (with some flexibility around hybrid working) About the Role Renzo Talent are recruiting on behalf of a well-established organisation based in Pontefract. We are seeking … Business Systems Analyst to support the modernisation of their business applications and processes. This role will play a key part in replacing two legacy systems and contributing to the discovery, design, and implementation of a new Enterprise Resource Planning (ERP) system. The successful candidate will work ...

role in the development, optimisation and evolution of complex database solutions. You will be responsible for managing data migration from legacy systems, designing robust data models, improving database performance, and supporting business-critical management information systems. Working within a collaborative environment, you will help drive data strategy … future business needs. Key Responsibilities Develop and maintain database solutions to efficiently store and retrieve business-critical information Install, configure and support information systems to ensure optimal functionality Analyse, plan and define data architecture frameworks, including: Security Reference data Metadata Master data management Migrate data from legacy ...

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 ...

regulated environment. Key Responsibilities Define and deliver a clear software platform strategy and roadmap across custom applications, APIs, low-code, and legacy systems Lead high-quality, predictable delivery of software changes across internal teams, citizen developers, and third-party suppliers Own and prioritise the development backlog, balancing … enable safe, scalable use Oversee responsible adoption of AI-enabled capabilities Ensure architectural integrity, security, and compliance across all solutions Manage legacy systems, including modernisation and decommissioning plans Maintain reliable, resilient platform operations Lead and develop high-performing engineering teams and partners Control and optimise platform ...

improvements, and embed secure-by-design practices across a diverse range of technical estates. This includes Defence-classified networks, legacy and industrial systems, hybrid IT/OT environments, research platforms, and modern cloud services. Key Responsibilities 1. Cyber Security Strategy, Planning & Delivery Develop, maintain, and execute cyber … security tools, processes, and monitoring capabilities are effectively deployed and maintained. 5. Management of Classified & High-Security Environments Govern cyber controls and practices for systems handling Official-Sensitive and above. Ensure appropriate physical, procedural, and technical controls are in place across secure research, prototyping, and engineering environments. Ensure that ...

Systems Architect 2 Year FTC Scunthorpe, North Lincolnshire Hybrid Working - 3 days in, 2 from home Up to £65,000 + excellent benefits including pension + 27 days holiday + bank holidays + life assurance + health cash plan + ongoing training and development Are you an experienced infrastructure … evolving technical environment? This is a hands-off Solution Architect position focused on defining and aligning technology solutions across infrastructure, networks, security, enterprise systems, and operational technology. You will work closely with internal teams and third-party suppliers to produce clear, structured designs ready for delivery. You will play ...

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 ...

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 ...

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 ...

Hydraulic Systems Engineer Havant, Hampshire Permanent, full time Salary DOE - We're recruiting on behalf of a well-established marine equipment manufacturer for a Hydraulic Systems Engineer to join their busy Design and Engineering team. This is a hydraulics-led design role, well suited to an established hydraulic … systems specialist. You'll take ownership of hydraulic systems from concept through to commissioning, with real scope to optimise existing systems and help identify new areas of the market. What you'll be doing: Designing, developing and optimising hydraulic systems for marine deck equipment, concept through ...

engineering and technology sector. We deliver enterprise technology solutions that help government agencies, defence organisations and commercial entities modernise operations, migrate legacy systems, and transform service delivery. About the Role The OSM Migration Service Lead is a senior technical leadership position responsible for designing, planning, executing … services with business objectives and contractual obligations. Technical Architecture & Design Design target-state operational architectures incorporating modern IT infrastructure, cloud services and integrated systems Evaluate migration approaches (phased, big-bang, hybrid) and recommend optimal strategies based on risk, timeline and cost factors Ensure migrated services meet security requirements including ...

Developer Location: Cheltenham (Hybrid) Salary: £65k As a Senior Developer, you will play a key role in supporting, maintaining, and evolving our core business systems and integrations. Working within the Business Systems team, you will deliver reliable, scalable solutions that support day-to-day operations, improve user experience … enable business growth. This is a hands-on, varied role combining development, database optimisation, and systems integration. You will collaborate closely with stakeholders across the business, contributing to both new initiatives and continuous improvement of existing platforms. Your responsibilities as a Senior Developer will be: Develop, maintain, and enhance ...

changes. Desirable Skills & Experience Broader Tech Stack: Experience or familiarity with Ruby on Rails, to assist in migrating, maintaining, or integrating with existing Legacy Front End estates. Cross-Government Platforms: Prior experience integrating digital products with strategic cross-government capabilities, such as GOV.UK One Login … GOV.UK Pay, GOV.UK Notify, or digital wallets. Legacy Transformation: Experience supporting large-scale digital transformation programmes migrating away from Legacy systems (eg, older Java, AIX, Oracle, or Mainframe environments). Cloud Infrastructure: Familiarity with AWS serverless patterns, infrastructure-as-code principles, and proactive observability monitoring. ...

IR35 Overview I am hiring for an experienced Business Analyst to support a major ERP transformation as my client moves from legacy systems to Microsoft Dynamics 365 and Business Central. I am looking for a professional with deep expertise in Microsoft Dynamics 365 Business Central, who also … Functional design and documentation Process improvement and standardisation Stakeholder engagement across business and IT Experience migrating from legacy or highly customised systems to Dynamics ...

Server expertise to help design, build, and modernise enterprise Windows applications and services. You’ll play a key role in refactoring legacy systems into modern .NET solutions while contributing to future cloud migration projects. What you’ll be doing: • Developing and maintaining Windows applications and services • Refactoring … Azure DevOps, CI/CD, Git, Visual Studio and secure coding practices • Strong problem-solving and communication skills If you’re passionate about modernising systems, delivering high-quality software, and working on impactful projects this could be the role for you. Hybrid Role – Two days a week onsite. ...

Define, design, and govern the end-to-end technical architecture across cloud and on-premise systems, ensuring scalability, security, maintainability, and alignment with business and enterprise architecture objectives. The role is responsible for establishing Azure-based solution architectures, guiding delivery teams, and ensuring that technology decisions drive long-term … solution architectures across applications, data, integrations, and infrastructure within Microsoft Azure environments Define architectural patterns for cloud-native, hybrid, and distributed systems Develop high-level and low-level designs (HLD/LLD), ensuring clarity for delivery teams Ensure solutions are scalable, resilient, secure, and cost-optimised Azure Cloud Architecture ...

business. As part of a large-scale transformation programme, you'll help modernise core business platforms, support cloud adoption, replace legacy systems, and drive the delivery of enterprise-wide digital solutions. Working at the intersection of business operations and technology, you'll collaborate with stakeholders across … requirements, and translating them into practical, scalable technology solutions. This is a highly visible role offering exposure to a diverse portfolio of projects spanning systems integration, process improvement, platform modernisation, and digital transformation initiatives. Key Responsibilities Partner with business stakeholders to understand current processes, challenges, and strategic objectives. Gather ...

multi-vendor delivery environments. Knowledge of Agile delivery methodologies and modern software development practices. Desirable Experience leading enterprise application modernisation programmes. Experience delivering legacy system decommissioning initiatives. Knowledge of enterprise architecture frameworks such as TOGAF. Microsoft Azure and Dynamics 365 certifications. Experience within membership organisations, professional bodies ...

virtualisation solutions, containerisation strategies and orchestration platforms Design disaster recovery, business continuity and resilience architectures meeting MOD availability requirements Guide infrastructure modernisation programmes, legacy system migrations and technology refresh initiatives Ensure infrastructure designs comply with MOD security requirements, Classification Guides and defence standards Technical Leadership & Governance Lead infrastructure ...

Programme Manager – Housing Systems Transformation (Interim) Location: Adur & Worthing, West Sussex (Hybrid Working) Rate: £309.00 per day PAYE + Holiday Pay (£37.30 per day) Contract: Temporary until July 2027 Hours: 37 hours per week Hybrid Working – The Best of Both Worlds This role offers an excellent hybrid working arrangement … flexibility and a healthy work-life balance. The Opportunity An exciting opportunity has arisen for an experienced Programme Manager to lead a major Housing Systems Transformation Programme for a large housing organisation in West Sussex. This high-profile programme will replace multiple legacy systems with ...

This role is responsible for designing and implementing scalable, modern software solutions that meet business needs, while leading the transition of legacy systems into more flexible, web-based platforms using APIs and industry-standard practices. Technical & Architectural Skills Software architecture and system design Application modernization (legacy … Development Manager, fostering a collaborative and high-performing environment. Architect and design modern, scalable applications and integrations, with a focus on transitioning from legacy platforms to modern solutions. Collaborate with stakeholders and change management teams to gather requirements and translate them into clear, actionable technical specifications. Oversee ...

workshop — staging, imaging, and testing customer devices and networking equipment prior to deployment. Your responsibilities Ensure that all prebuilt/preconfigured solutions/systems and hardware is configured and setup in line with Manufacturer, IT and Cyber best practices • Provide responsive, hands-on support for our field-based engineers … systems and customers • Commissioning support for our professional services team Maintain documentation for processes, systems, assets, and credentials • Play a key role in transitioning legacy systems to new solutions Your competencies Essential • Good understanding of IP Networking, switches, firewalls, routers and VPNs. • IT Support/ ...

testing, version control (Git), & code review workflows. Hands-on CI/CD experience - building, configuring, or maintaining automated build & deployment pipelines. Experience modernizing Legacy software - migrating codebases from older languages or frameworks to current platforms, including UI/UX modernization. C#/.Net Senior Desktop Software Engineer … complex desktop & 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, & UI/UX frameworks while preserving scientific accuracy & performance. (nice to have ...

platforms and datasets are reliable, performant, and ready to support analytics and business intelligence. Lead hands-on data mapping activities from legacy systems into Databricks, considering downstream analytics requirements including Tableau and future AI-driven use cases such as Mulesoft IDP and Data360/Agentforce. Support … similar cloud-based data platforms. Demonstrable experience designing and building production-grade data pipelines. Experience working with data migration and mapping from legacy systems. Strong understanding of data modelling, transformation, and data engineering principles. Experience supporting analytics and reporting platforms such as Tableau. Desirable: Experience working with Salesforce ...

leading public sector organisation based in Belfast is seeking an experienced Systems Project Manager to lead the end-to-end delivery and implementation of a critical Customer Relationship and Case Management System (CRM/CMS). This is a hands-on role where you will drive the practical implementation … platform, oversee data migration from legacy systems, and champion process re-engineering across diverse teams. You will work closely with senior leadership to ensure successful system adoption, automation, and deliver improved user and customer experiences. Key Responsibilities Project Delivery: Lead the end-to-end implementation ...