76 to 100 of 154 Legacy Systems Jobs in the UK excluding London

Senior Infrastructure Engineer

Hiring Organisation
Arcas Technology Ltd
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £70,000 per annum
Citrix, and cloud-hosted applications. The Role You’ll work closely with the Head of IT to lead infrastructure projects, modernise legacy systems, and drive cloud-focused improvements. The environment is a mix of on-premises and cloud, and the business is looking for someone ...

.NET Developer

Hiring Organisation
Avanti
Location
Sheffield, South Yorkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £50,000 per annum
looking to hire a .NET Developer to support ongoing growth and an increasing project pipeline. This is a hands-on role working on bespoke systems built for a range of clients , offering the opportunity to work across the full development lifecycle and make a genuine impact. THE ROLE … will be working on a range of custom-built applications , supporting existing systems while also developing new variations for incoming clients. Responsibilities include: Working on existing customer codebases Developing and adapting bespoke software solutions Contributing across full-stack development (frontend & backend) Understanding and implementing client-specific requirements Supporting testing ...

Software Engineer

Hiring Organisation
Rise Technical Recruitment
Location
Somerset, United Kingdom
Employment Type
Permanent
Salary
£38000 - £45000/annum Bonus + Hybrid + Training
used in demanding industrial environments, working with C#, WPF, front-end languages such as Vue.JS, Angular or React. You will collaborate with electrical and systems engineers, contribute to system architecture and support both new platform development and legacy product improvement. This role offers strong technical variety, career … supportive engineering culture. You should bring solid commercial experience, excellent understanding of SOLID principles, and confidence contributing to design discussions. Exposure to industrial systems or electronics is beneficial. This role is ideal for someone who enjoys autonomy: you will be given open technical problems, trusted to investigate and propose ...

Senior Software Engineer (RPG / IBM i)

Hiring Organisation
Jobleads-UK
Location
Cardiff, Wales, United Kingdom
Target Group , we don’t just build platforms – we build outcomes that matter . As part of our continued investment in modernising our core systems, we’re looking for a Senior RPG Software Engineer who enjoys solving complex problems, shaping quality solutions and developing others along the way. … enjoy being hands‐on with development while influencing design and quality, and want to play a key role in opening up legacy systems through APIs and modern integration – this could be the role for you. What can you expect? As a Senior Software Engineer ...

Customer Onboarding Specialist (Software)

Hiring Organisation
Commercial
Location
Kettering, Northamptonshire, East Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£45,000
Friday, 9:00am - 5:00pm We are working with a well-established, family-run software business operating within a specialist public sector niche, providing systems that support local authorities and bereavement service providers in managing crematorium, cemetery, funeral, and bereavement services. The business is entering an exciting period … Doing Supporting and coordinating customer onboarding and software implementations Delivering structured training sessions remotely and occasionally onsite Supporting data migration from legacy systems to the new platform Creating user-friendly training guides and documentation Coordinating rollout plans and tracking implementation timelines Acting as a key point ...

Continuous Improvement Lead

Hiring Organisation
Hays
Location
Gloucestershire, South West, United Kingdom
Employment Type
Permanent
Salary
£60,000
continued digital and organisational development. Technology plays a critical role in enabling frontline services and improving efficiency across the organisation with ongoing investment in systems, infrastructure, and data-driven capabilities. The environment is complex and fast-paced, requiring individuals who can balance day-to-day operational demands with longer … technical teams, understanding system integrations, data flows and operational constraints, while ensuring solutions are robust, secure and scalable. Experience working with legacy systems and third-party vendors, alongside an ability to oversee testing, deployment and ongoing optimisation, will be key to success in this role. Previous experience ...

Application Developer (Delphi/SQL/.Net)

Hiring Organisation
IT Talent Solutions Ltd
Location
Essex, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 Annual
team supporting and enhancing large-scale enterprise applications used by global clients. If you thrive on solving complex technical challenges, modernising Legacy systems, and delivering stable, high-performing solutions - this could be the role for you. You'll play a key role in maintaining and developing critical ...

Application Developer

Hiring Organisation
IT Talent Solutions Ltd
Location
Essex, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £70,000 per annum
team supporting and enhancing large-scale enterprise applications used by global clients. If you thrive on solving complex technical challenges, modernising legacy systems, and delivering stable, high-performing solutions — this could be the role for you. You’ll play a key role in maintaining and developing critical ...

Delphi Developer

Hiring Organisation
Octad Recruitment Consultants (Octad Ltd )
Location
Wickford, Essex, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
/MS SQL Server experience. 3+ years .NET C# experience. Strong experience with complex, data-driven applications. Proven background maintaining or upgrading legacy systems. Experience with visually inherited UIs. Strong debugging, optimisation, and performance-tuning skills. Experience working within Agile, Waterfall, or hybrid SDLC environments. Familiarity with version ...

Data and Power BI Engineer

Hiring Organisation
Rise Technical Recruitment
Location
Spalding, Lincolnshire, United Kingdom
Employment Type
Permanent
Salary
£50000 - £60000/annum Holiday + Pension
Azure to turn complex data into clear, actionable business insight? This company is a digital transformation company specialising in bespoke software development, legacy system support, and enterprise applications for a diverse range of clients. In this role, you will design, build and maintain resilient data platforms using bronze ...

Data Scientist

Hiring Organisation
ISR Recruitment Ltd
Location
Exeter, Devon, United Kingdom
Employment Type
Permanent
Salary
GBP 55,000 Annual
making and customer facing features. Finally, you will play a central role in the transition to an Azure-native stack from Legacy systems, and this new stack will be utilising Python, Spark and Cloud computing to automate complex workflows. Applications: Please contact John here ...

Full Stack Developer

Hiring Organisation
Oscar Technology
Location
Derby, Derbyshire, England, United Kingdom
Employment Type
Full-Time
Salary
£30,000 - £45,000 per annum
play a key role in developing new features, building applications from the ground up, and supporting the migration of legacy systems to the latest version of .NET, including the use of containerisation. You'll also work closely with analysts and other developers to continuously improve product performance ...

Delivery Consultant - Migrations, Public Sector Professional Services - UK

Hiring Organisation
Jobleads-UK
Location
Manchester, England, United Kingdom
modernization techniques. Application discovery and dependency mapping. Migration tooling (Application Migration Service, Database Migration Service, Migration Hub). Cutover planning and execution. Legacy system analysis and decommissioning. Risk mitigation and rollback strategies. AWS Transform. Preferred Qualifications Experience and technical expertise (design and implementation) in cloud computing technologies. Experience ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Taunton, England, United Kingdom
shaping system architecture, driving best practice, and developing robust, maintainable solutions that are relied upon by customers worldwide. You will work closely with electrical, systems, and test engineers to deliver integrated solutions, contributing across the full lifecycle from concept and design through to delivery and long‐term support. Backed … software architecture and design, ensuring scalable and maintainable solutions Contribute to microservice architecture and Azure based modernisation initiatives Maintain and evolve legacy systems while planning for their future development Collaborate with multidisciplinary engineering teams in an agile environment Participate in code reviews, sprint planning, and CI/ ...

Senior Software Engineer

Hiring Organisation
Rise Technical Recruitment
Location
Wellington, Somerset, United Kingdom
Employment Type
Permanent
Salary
£45000 - £60000/annum Bonus + Progression + Hybrid
shaping system architecture, driving best practice, and developing robust, maintainable solutions that are relied upon by customers worldwide. You will work closely with electrical, systems, and test engineers to deliver integrated solutions, contributing across the full lifecycle from concept and design through to delivery and long term support. Backed … software architecture and design, ensuring scalable and maintainable solutions Contribute to microservice architecture and Azure based modernisation initiatives Maintain and evolve legacy systems while planning for their future development Collaborate with multidisciplinary engineering teams in an agile environment Participate in code reviews, sprint planning, and CI/ ...

IT Infrastructure Network Engineer

Hiring Organisation
South East Water
Location
Snodland, Kent, United Kingdom
Employment Type
Permanent
Salary
£50000/annum
deploy critical "box" network security hardware to safeguard our infrastructure against modern threats. The WAN Upgrade: Rip out and upgrade legacy systems to modern Wide Area Network (WAN) infrastructure, preventing critical telephone connectivity drops and ensuring our remote treatment and process sites stay online 24/7. …/multimode fiber). Power & Protocol Management: Working hands-on with a mix of 230v AC, as well as 24v and 48v DC power systems used by low-voltage routers, switches, and sensors. High-Level Support: Backing up the IT Helpdesk by providing expert 2nd and 3rd line support ...

IT Director

Hiring Organisation
Jobleads-UK
Location
Newport, Wales, United Kingdom
proposed role would provide executive-level oversight of technology strategy, digital transformation, cyber security, infrastructure planning, business continuity, information governance and enterprise-wide systems development. The role is intended to support the continued development of a scalable, resilient and strategically aligned technology function suitable for a growing and geographically … organisational scalability. Key responsibilities at a glance Enterprise Architecture & Transformation: Design the multi-year digital roadmap to transition the Group from legacy systems to scalable, cloud-first and AI-driven environments where appropriate. Business-IT Alignment: Collaborate with the C‐Suite and GLT to ensure technology ...

Head of Product

Hiring Organisation
Maxwell Bond
Location
Manchester Area, United Kingdom
with the ability to influence at senior leadership level Strong understanding of Agile delivery methodologies and product operating models Comfortable navigating legacy systems, platform modernisation, and large-scale transformation initiatives Desired Experience Experience managing multi-system enterprise application landscapes Exposure to vendor management, supplier negotiations, and commercial ...

IFS Finance Consultant

Hiring Organisation
IT Works Recruitment LTD
Location
Scotland, United Kingdom
Cloud finance processes and issue resolution. Executed and validated finance data migration activities, including data mapping, cleansing, reconciliation, and migration from legacy systems into IFS Cloud. Collaborated with cross-functional teams (IT, functional consultants, and stakeholders) to ensure successful integration, reporting accuracy, and continuous improvement of finance ...

Senior Delivery Consultant - Migrations, Professional Services

Hiring Organisation
Jobleads-UK
Location
Bristol, England, United Kingdom
configuration management using CloudFormation, Chef, and Puppet. Experience in large scale migration – data centre to data centre or data centre to cloud infrastructure. Legacy system analysis and decommissioning. Risk mitigation and rollback strategies. AWS Transform. Eligibility Be a UK national and able to obtain and maintain ...

Azure Cloud Engineer

Hiring Organisation
Devonshire Hayes Recruitment Specialists Limited
Location
Watford, Hertfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
Security Engineer to design, secure, and optimise Azure environments at scale. You’ll play a key role in cloud transformation, migrating legacy systems, and driving modern data, AI, and automation capabilities. What You’ll Be Doing Design and manage Azure infrastructure (compute, storage, networking, Microsoft Fabric) Lead ...

Head of IT Applications

Hiring Organisation
Jobleads-UK
Location
Ipswich, England, United Kingdom
platforms Ensure the applications estate delivers measurable business value, driving efficiency, performance and an excellent user experience Drive the modernisation of legacy systems, championing scalable, cloud‐based and low‐code solutions Lead and develop application development, configuration and support teams to ensure high‐quality, reliable delivery Ensure ...

Data/ Solution Architect

Hiring Organisation
Jobleads-UK
Location
Northampton, England, United Kingdom
rapid change and meets functional and non-functional requirementsAssist in planning, architecture, analysis, and design of applications and integrate with legacy systems #J-18808-Ljbffr ...

Senior Software Engineer - AI

Hiring Organisation
Jobleads-UK
Location
Peterborough, England, United Kingdom
part of our journey: As a Senior Software Engineer (AI Engineering), you’ll take a leading role in designing and implementing agent-ready systems and developer tools. You’ll build production-grade software that enables safe, scalable, and AI-augmented engineering, while mentoring and guiding engineers to raise … design and development of services that support AI agent interaction Drive the application of GenAI to modernise, refactor, and accelerate legacy systems Define and implement APIs, contracts, and metadata aligned with the Model Context Protocol Shape and evolve internal tooling that supports AI-native SDLC workflows Influence ...

Senior Software Engineer

Hiring Organisation
Data Careers
Location
Fareham, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
£90,000
site 3 days a week) Salary: £80,000 - £90,000 (+ benefits) Skills: Python/C++/Legacy Modernisation/Complex Systems, MOD DV Clearance We are looking to recruit a MOD DV Cleared Senior Software Engineer for a leading technology consultancy delivering complex software engineering, maintenance … software Supporting architecture changes as requirements evolve Helping modernise codebases, tooling and engineering standards The role requires someone who is comfortable working across established systems, improving existing code and supporting other engineers through mentoring, review and technical leadership. Key Responsibilities Lead hands-on software maintenance, enhancement and upgrade work ...