Legacy Systems Jobs in the UK

426 to 450 of 560 Legacy Systems Jobs in the UK

Senior AWS Data Engineer

City of London, London, United Kingdom
Tenth Revolution Group
Triggers Hybrid London 1-2 days a week £(Apply online only) (Outside IR35) The reason they're hiring now, they have a client that is all on a legacy system, on-prem platform, and they want to build out their AWS platform. They want to do a High-level architecture design to take to the low-level design. More ❯
Employment Type: Contract
Rate: £500 - £600/day
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Data Architect

City of London, London, United Kingdom
La Fosse
Using GCP), defining data strategy and architecture from the ground up. This is more than just governance — it’s a chance to solve big problems, modernise legacy systems, and create reusable, scalable data products that unlock business value. Key Responsibilities: Shaping data strategy and architecture roadmap Designing scalable models and integration patterns Leading on cloud data tech More ❯
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Data Architect

London Area, United Kingdom
La Fosse
Using GCP), defining data strategy and architecture from the ground up. This is more than just governance — it’s a chance to solve big problems, modernise legacy systems, and create reusable, scalable data products that unlock business value. Key Responsibilities: Shaping data strategy and architecture roadmap Designing scalable models and integration patterns Leading on cloud data tech More ❯
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Java Developer

Leatherhead, Surrey, United Kingdom
Tenth Revolution Group
company in Leatherhead are recruiting for a Java Developer to join their team. This role will help develop, test and maintain existing products and help modernise legacy systems into a newer microservices architecture. You'll work alongside experienced developers and internal stakeholders to deliver high-quality software that meets business objectives. Key responsibilities will include: Develop and More ❯
Employment Type: Permanent
Salary: £65000 - £70000/annum
Posted:

Java Developer

Fetcham, Surrey, United Kingdom
Tenth Revolution Group
company in Leatherhead are recruiting for a Java Developer to join their team. This role will help develop, test and maintain existing products and help modernise legacy systems into a newer microservices architecture. You'll work alongside experienced developers and internal stakeholders to deliver high-quality software that meets business objectives. Key responsibilities will include: Develop and More ❯
Employment Type: Permanent
Salary: GBP 65,000 - 70,000 Annual
Posted:

C# Back-End Integration Developer

Bracknell, Berkshire, United Kingdom
Opus Recruitment Solutions
development team led by the Head of Software, you'll leverage your 5+ years of experience to spearhead integrations, manage APIs, and drive the modernisation of legacy systems while implementing new features. Key Responsibilities: - Develop and manage inbound and outbound integrations - Build 3rd party APIs for seamless product communication - Collaborate on internal applications, migrations, and upgrades - Stay More ❯
Employment Type: Permanent
Salary: £50000/annum
Posted:

Salesforce Core Cloud Developer

Manchester, England, United Kingdom
Hybrid / WFH Options
TECHOHANA
experience with Salesforce Sales, Service and Experience Cloud Skilled in Apex, Lightning Web Components (LWC), Visualforce and SOQL Proven experience integrating Salesforce with external platforms and legacy systems Solid understanding of security models, automation and financial services best practices Comfortable working in agile environments with cross-functional delivery teams If you’re a technically strong developer looking More ❯
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ServiceNow Technical Architect - Eviden

London, United Kingdom
Atos SE
corporate architecture and infrastructure standards. The candidates should be eligible to obtain a security clearance to the SC level. Responsibilities: Governance of the relationships between applications, legacy systems, component libraries, content repositories and supporting databases. Preparing and running functional design workshops, creating design specifications based on out-of-the-box functionality and customer requirements. Providing creative solutions … support, validate and help deliver client presentations, workshops, proof of concept designs and responses to technical and business enquiries. Hands-on technical delivery of the ServiceNow technical solutions. Research systems and/or programs to determine causes of failure or poor operational performance; then define, test, and implement detailed solutions. Stay current on product developments/releases to a More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

SalesForce Solutions Architect

England, United Kingdom
Anson McCade
consulting background working with enterprise level customers Deep Knowledge of Salesforce architecture, platform (Sales, Service, Exp, data cloud etc) Experience with complimentary technologies and integration with legacy systems SalesForce certifications are highly desirable but not essential Please note this role will be subject to security clearance checks as such candidates must be Sole British Citizens or Dual More ❯
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Data Engineer - Water Sector

England, United Kingdom
iO Associates - UK/EU
Building and maintaining robust data pipelines using Azure Data Factory and SQL Server Developing efficient, reliable processes for ingesting and transforming data Supporting the migration from legacy systems into cloud-based environments Collaborating with analysts, engineers, and business teams to deliver clean, usable datasets Writing well-documented, reusable code and helping standardise data processes Key skills: Proficiency More ❯
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Data Engineer - Water Sector

London, England, United Kingdom
iO Associates - UK/EU
Building and maintaining robust data pipelines using Azure Data Factory and SQL Server Developing efficient, reliable processes for ingesting and transforming data Supporting the migration from legacy systems into cloud-based environments Collaborating with analysts, engineers, and business teams to deliver clean, usable datasets Writing well-documented, reusable code and helping standardise data processes Key skills: Proficiency More ❯
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Product Owner

Nottingham, Nottinghamshire, United Kingdom
Forsyth Barnes
customers across the globe, this business has become the go-to tech partner for top-tier energy suppliers by delivering scalable, cost-effective solutions that outperform legacy systems - and by building a team of passionate, collaborative people. As a Product Owner, you'll work closely with the Product Manager and cross-functional squads to take product initiatives More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Power Platform Architect

United Kingdom
Hybrid / WFH Options
Ocho
offers a clear runway for both personal progression and strategic impact. You’ll be the go-to expert on low-code transformation—helping clients modernise from legacy systems, shape digital strategies, and deliver enterprise-scale solutions. What You’ll Do: Lead the architecture and delivery of Dynamics 365 (CE) and Power Platform solutions Own technical outcomes and More ❯
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Power Platform Architect

London, England, United Kingdom
Hybrid / WFH Options
Ocho
offers a clear runway for both personal progression and strategic impact. You’ll be the go-to expert on low-code transformation—helping clients modernise from legacy systems, shape digital strategies, and deliver enterprise-scale solutions. What You’ll Do: Lead the architecture and delivery of Dynamics 365 (CE) and Power Platform solutions Own technical outcomes and More ❯
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Salesforce Technology Lead

United Kingdom
Kainos Smart
We're a creative, committed, and diverse group of individuals who succeed as a team. At Kainos your ideas are heard and valued and you'll leave a legacy that you can feel proud of.Join us and discover how our people write our story. The Salesforce Technology Lead is a key role in the business, accountable for technology … Salesforce certifications including Certified Application Architect and/or Certified System Architect (Certified Technical Architect preferred). Experience with complementary technologies (e.g. AWS, Azure, M365) and integration with legacy systems. Proven experience delivering secure, compliant solutions aligned with UK government standards and best practice. Strong leadership skills with the ability to delegate, motivate, attract, develop, and mentor high More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Developer

Manchester, United Kingdom
Pearson Carter
Software Developer Pearson Carter is currently working with a company in the Space industry that is looking to hire a Developer to join their team and work on legacy software systems. They offer a competitive base salary ranging from £30,000 to £40,000. If you're seeking your next opportunity, get in touch! Responsibilities: Work within IT … in a Manufacturing environment Hands-on development using legacy software Business reporting using Crystal Reports Experience: .NET JavaScript Crystal Reports ERP or Manufacturing Industry experience (desirable) Salary: £30,000 - £40,000 Location: Offices located in Rotherham or Glossop; this position requires office-based work. Applications are welcome from professionals with development experience. How to Apply: Please submit your More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Windows Migration Engineer

City, London, United Kingdom
Ganymede Solutions
will take full ownership of a large-scale Windows Server migration programme. The scope includes upgrading servers currently running Windows Servers, and addressing a small number of additional legacy systems. This role requires a proven subject matter expert in Windows Server migrations who is comfortable operating across multiple environments that include a complex mix of both legacy More ❯
Employment Type: Contract
Rate: GBP Annual
Posted:

Windows Migration Engineer

London, Billingsgate, United Kingdom
Ganymede Solutions
will take full ownership of a large-scale Windows Server migration programme. The scope includes upgrading servers currently running Windows Servers, and addressing a small number of additional legacy systems. This role requires a proven subject matter expert in Windows Server migrations who is comfortable operating across multiple environments that include a complex mix of both legacy More ❯
Employment Type: Contract
Posted:

Systems Trainer

London Area, United Kingdom
Hybrid / WFH Options
Gravitas Recruitment Group (Global) Ltd
Systems Trainer – Student Systems Implementation Fixed-Term until October 2026 | £36k - £42k | Hybrid – London 1-2 day/week Are you experienced in delivering high-quality systems training and end-user support within large, complex environments? Are you excited by the idea of playing a key role in the successful rollout of a major student systems implementation? We’re looking for a confident and proactive Systems Trainer/Lead to join a major transformation programme at a forward-thinking university who are undergoing a massive transformation project. Role: Systems Training Lead Employment Type : FTC until October 2026 initially Location : London 1-2 days a week onsite but this is not regular Salary … embedding new digital capabilities across the student lifecycle. What You'll Be Doing Working closely with SMEs in designing and delivering engaging training sessions and materials for new student systems as per releases (Release one is Admissions) Providing first-line support and expert advice to system users across multiple departments Advising on best practice use of the system to More ❯
Posted:

Systems Trainer

City of London, London, United Kingdom
Hybrid / WFH Options
Gravitas Recruitment Group (Global) Ltd
Systems Trainer – Student Systems Implementation Fixed-Term until October 2026 | £36k - £42k | Hybrid – London 1-2 day/week Are you experienced in delivering high-quality systems training and end-user support within large, complex environments? Are you excited by the idea of playing a key role in the successful rollout of a major student systems implementation? We’re looking for a confident and proactive Systems Trainer/Lead to join a major transformation programme at a forward-thinking university who are undergoing a massive transformation project. Role: Systems Training Lead Employment Type : FTC until October 2026 initially Location : London 1-2 days a week onsite but this is not regular Salary … embedding new digital capabilities across the student lifecycle. What You'll Be Doing Working closely with SMEs in designing and delivering engaging training sessions and materials for new student systems as per releases (Release one is Admissions) Providing first-line support and expert advice to system users across multiple departments Advising on best practice use of the system to More ❯
Posted:

Systems Trainer

South East London, England, United Kingdom
Hybrid / WFH Options
Gravitas Recruitment Group (Global) Ltd
Systems Trainer – Student Systems Implementation Fixed-Term until October 2026 | £36k - £42k | Hybrid – London 1-2 day/week Are you experienced in delivering high-quality systems training and end-user support within large, complex environments? Are you excited by the idea of playing a key role in the successful rollout of a major student systems implementation? We’re looking for a confident and proactive Systems Trainer/Lead to join a major transformation programme at a forward-thinking university who are undergoing a massive transformation project. Role: Systems Training Lead Employment Type : FTC until October 2026 initially Location : London 1-2 days a week onsite but this is not regular Salary … embedding new digital capabilities across the student lifecycle. What You'll Be Doing Working closely with SMEs in designing and delivering engaging training sessions and materials for new student systems as per releases (Release one is Admissions) Providing first-line support and expert advice to system users across multiple departments Advising on best practice use of the system to More ❯
Posted:

Software Systems Developer (with Embedded experience)

St Leonards-on-Sea, East Sussex, UK
Drallim Industries Limited
Are you an experienced electronics engineer with a passion for building reliable, high-performance systems? We’re looking for a hands-on, detail-oriented individual to join our team and contribute to the design, development, and support of innovative embedded hardware and systems. Location: St. Leonards on Sea, East Sussex Job Type: Full-Time Salary: Dependant on experience Key … peripherals, and simple serial buses (SPI, I2C). Experience using: PCB layout/design tools (e.g., Fusion 360/Eagle) Circuit simulation tools (e.g., SPICE) Gerber viewers and legacy design tools Compliance & Standards Solid understanding of industry regulations and compliance processes. Experience selecting and applying relevant standards (Railway experience is a bonus). Embedded Software Development Proficient in … C programming for microcontrollers (PIC or similar). Experience with MPLABX or equivalent development environments. Networking Strong troubleshooting skills for remote connectivity. Ability to set up and maintain communication systems over PSTN, TCP/IP, and mobile networks (4G/5G). Desirable Skills (Nice to Have) Experience in high-voltage design (e.g., railway traction systems, instrumentation up More ❯
Employment Type: Full-time
Posted:

Software Systems Developer (with Embedded experience)

St Leonards, Dorset, UK
Drallim Industries Limited
Are you an experienced electronics engineer with a passion for building reliable, high-performance systems? We’re looking for a hands-on, detail-oriented individual to join our team and contribute to the design, development, and support of innovative embedded hardware and systems. Location: St. Leonards on Sea, East Sussex Job Type: Full-Time Salary: Dependant on experience Key … peripherals, and simple serial buses (SPI, I2C). Experience using: PCB layout/design tools (e.g., Fusion 360/Eagle) Circuit simulation tools (e.g., SPICE) Gerber viewers and legacy design tools Compliance & Standards Solid understanding of industry regulations and compliance processes. Experience selecting and applying relevant standards (Railway experience is a bonus). Embedded Software Development Proficient in … C programming for microcontrollers (PIC or similar). Experience with MPLABX or equivalent development environments. Networking Strong troubleshooting skills for remote connectivity. Ability to set up and maintain communication systems over PSTN, TCP/IP, and mobile networks (4G/5G). Desirable Skills (Nice to Have) Experience in high-voltage design (e.g., railway traction systems, instrumentation up More ❯
Posted:

Software Systems Developer (with Embedded experience)

St Leonards, England, United Kingdom
Drallim Industries Limited
Are you an experienced electronics engineer with a passion for building reliable, high-performance systems? We’re looking for a hands-on, detail-oriented individual to join our team and contribute to the design, development, and support of innovative embedded hardware and systems. Location: St. Leonards on Sea, East Sussex Job Type: Full-Time Salary: Dependant on experience Key … peripherals, and simple serial buses (SPI, I2C). Experience using: PCB layout/design tools (e.g., Fusion 360/Eagle) Circuit simulation tools (e.g., SPICE) Gerber viewers and legacy design tools Compliance & Standards Solid understanding of industry regulations and compliance processes. Experience selecting and applying relevant standards (Railway experience is a bonus). Embedded Software Development Proficient in … C programming for microcontrollers (PIC or similar). Experience with MPLABX or equivalent development environments. Networking Strong troubleshooting skills for remote connectivity. Ability to set up and maintain communication systems over PSTN, TCP/IP, and mobile networks (4G/5G). Desirable Skills (Nice to Have) Experience in high-voltage design (e.g., railway traction systems, instrumentation up More ❯
Posted:

L2 Infrastructure Engineer

London, United Kingdom
Hybrid / WFH Options
Salt Digital Recruitment
looking for a Platform Engineer to support and enhance a bespoke Central System. This is a long-term contract role, ideal for someone with experience maintaining and developing legacy platforms, alongside modern cloud hosting environments. Key Responsibilities: Provide technical support and troubleshoot issues across a bespoke Central System Design, develop, and maintain a system built on Unibase, Unidata … of a wider team Comfortable working in a hybrid model with occasional travel to High Wycombe This role would suit someone with a deep understanding of legacy systems and a practical mindset when it comes to system improvements and modernisation. Get in touch to learn more or to apply. Rates depend on experience and client requirements SBC … per day Inside IR35 for 3-6 years experience in Voice DevOps (negotiable for higher experience) Contract: 6 -12 months Location: Brighton - Hybrid 3 days MIS Expert (Management Information Systems) Required to join a Consultancy on behalf of a Government organisation and this will be on a part time basis for around 10 days per More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:
Legacy Systems
10th Percentile
£42,500
25th Percentile
£50,000
Median
£65,000
75th Percentile
£83,750
90th Percentile
£104,000