1 to 25 of 30 Legacy Applications Jobs in the UK

AVD Architect

Hiring Organisation
IMT Resourcing Solutions
Location
Bristol, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £650/annum
play a key role in architecting a modern virtual desktop platform while ensuring seamless integration with a wide range of legacy applications critical to the business. Working alongside infrastructure, cloud, security and project teams, you'll help shape a scalable, secure and high-performing AVD estate that … solution end-to-end. Define the architecture, standards and best practices for the AVD environment. Lead the integration of complex legacy applications into the new virtual desktop platform. Work closely with infrastructure, cloud, networking and security teams throughout delivery. Ensure the solution is secure, resilient, scalable ...

Junior Software Developer (.NET / Power Platform)

Hiring Organisation
Reality Solutions Ltd
Location
Hull, North Humberside, North East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£30,000
solid technical foundation who is eager to learn and grow. You will work alongside experienced developers and consultants, supporting the development of business applications, database solutions, and Power Platform applications. A significant part of the role will involve designing, developing, and enhancing Microsoft Power Apps Canvas Applications … full software development lifecycle, from requirements gathering and solution design through to development, testing, deployment, and ongoing support. Key Responsibilities: Develop and maintain applications using VB.NET and C#.NET Design, build, and enhance Microsoft Power Apps Canvas Applications Assist in developing solutions using the wider Microsoft Power Platform, including ...

Lead Software Engineer - Risk/ FORT BUS MGMT

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
from business users and translate business needs into technical solutions; communicate technical constraints in business terms. Maintain and enhance existing and legacy applications when required. Required qualifications, capabilities, and skills Minimum 10 years of hands‐on Python development experience. Strong preference for candidates with a financial services … Capability to translate business needs into technical solutions and explain technical constraints in business terms. Willingness to understand and work on legacy applications when required. Preferred qualifications, capabilities, and skills Prior experience with financial risk stack platforms such as SecDB, Quartz, or Athena. Knowledge of rates products ...

Lead Software Engineer - Risk/ FORT BUS MGMT

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
from business users and translate business needs into technical solutions; communicate technical constraints in business terms. Maintain and enhance existing and legacy applications when required. Required qualifications, capabilities, and skills Minimum 10 years of hands-on Python development experience. Strong preference for candidates with a financial services … Capability to translate business needs into technical solutions and explain technical constraints in business terms. Willingness to understand and work on legacy applications when required. Preferred qualifications, capabilities, and skills Prior experience with financial risk stack platforms such as SecDB, Quartz, or Athena. Knowledge of rates products ...

Senior Golang Engineer

Hiring Organisation
Talent Smart
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£650/annum
technologies for individual workloads. Collaborate with frontend engineers to deliver full-stack solutions using React where required. Support the modernisation of legacy applications and migration towards cloud-native architectures. Build and optimise event-driven solutions using messaging and streaming technologies. Write clean, maintainable, well-tested code following … scalability, observability, and reliability. Work within Agile delivery teams, contributing to continuous improvement and DevOps practices. Essential Skills & Experience Strong commercial experience developing backend applications using Go (Golang) . Excellent understanding of distributed systems and microservices architecture. Experience building scalable APIs and high-throughput backend platforms. Strong Microsoft Azure ...

Senior Software Engineer

Hiring Organisation
Daniel James Resourcing Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
responsibilities, it is predominantly backend focused , with modern .NET and AWS at its core. What You'll Be Doing Design and develop scalable applications using modern .NET technologies. Build secure, high-performance cloud-native solutions on AWS. Develop RESTful APIs and event-driven services. Help modernise legacy applications into microservice-based architectures. Contribute to technical design sessions and architectural decisions. Champion engineering best practices including automated testing, CI/CD and code quality. Work closely with Product, QA and Engineering teams to deliver high-quality software. Support production systems and drive continuous platform improvements. ...

Lead AI Enabled Software/DevOps Engineer

Hiring Organisation
Guidant Global
Location
London, City of London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £850/day
teams - Set architectural direction for API-first design, system integration, and platform enablement for AI - Lead the evolution of legacy or existing applications towards modern, service-based and API-driven architectures - Define and guide integration patterns between applications, platforms, and AI services - Make informed decisions … code, testing, and maintainability - Strong experience designing and delivering API-driven and microservice-based systems - Proven ability to modernise or integrate legacy applications into modern software and platform architectures - Solid development experience in TypeScript and Python - Experience working across software delivery, infrastructure, CI/CD, and operational ...

Infrastructure Engineer (VMWARE)

Hiring Organisation
Leidos Innovations UK Limited
Location
Huntingdon, Cambridgeshire, East Anglia, United Kingdom
Employment Type
Permanent
troubleshooting of Active Directory within an on premise environment Development of a customer desktop build with a number of bespoke/legacy applications Packaging of applications Excellent communications skills, organisational skills and independent and autonomous working Experience in ITIL ICT service delivery on critical infrastructure Experience … life assurance, health schemes, gym memberships, annual buy and sell holidays and a cycle to work scheme) Dynamic Working Commitment to Diversity: We welcome applications from every part of the community and are committed to a truly diverse and inclusive culture. We foster a sense of belonging, welcoming ...

Senior Software Engineer (.Net)

Hiring Organisation
Candidate Source
Location
Wakefield, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
modern Microsoft technologies Genuine opportunity to influence engineering standards and long-term technical strategy Your responsibilities as Senior Software Engineer Design, develop and maintain applications using C# and .NET technologies Build scalable APIs, integrations and microservices to support business-critical platforms Contribute to solution architecture and technical design decisions … across multiple projects Support Azure cloud services, CI/CD pipelines and engineering best practices Help modernise legacy applications while reducing technical debt and improving software quality Mentor other developers and work closely with Product, Engineering and Infrastructure teams to deliver successful outcomes What we're looking ...

Principal Solution Architect

Hiring Organisation
Daniel James Resourcing Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Solution Architect, Technical Architect or Senior Software Architect Strong background in modern software engineering using C#/.NET Extensive experience designing cloud-native applications on AWS Deep understanding of microservices architecture Experience with event-driven systems and asynchronous messaging API-first architecture and systems integration Container technologies (Docker, Kubernetes … closely with software engineers and remaining technically credible Nice to have Financial services, payments or complex transactional platform experience Experience modernising legacy applications Domain-driven design Event sourcing or CQRS Serverless architecture Observability platforms DevSecOps practices Why join? This is an opportunity to influence architecture rather than ...

AWS Application Migration Architect

Hiring Organisation
TALENT INTERNATIONAL UK LTD
Location
United Kingdom
Salary
£600.00 - £650.00 per day
London Contract Type: Contract Inside IR35 Security Clearance: BPSS/SC Clearance required In this contract, you will lead the architecture assessment of legacy application estates and design exactly how they will land … operate on a newly established AWS core cloud platform. Legacy Assessments: Conduct deep-dive architectural assessments of legacy applications, evaluating technology stacks, data flows, interfaces, and operational models. Target Landing Design: Define target account structures, network placements, compute/storage patterns, and IAM configurations using ...

AWS Application Migration Architect

Hiring Organisation
17918
Location
London, United Kingdom
London Contract Type: Contract Inside IR35 Security Clearance: BPSS/SC Clearance required In this contract, you will lead the architecture assessment of legacy application estates and design exactly how they will land … operate on a newly established AWS core cloud platform. Legacy Assessments: Conduct deep-dive architectural assessments of legacy applications, evaluating technology stacks, data flows, interfaces, and operational models. Target Landing Design: Define target account structures, network placements, compute/storage patterns, and IAM configurations using ...

Senior Delivery Consultant - Modernisation, Professional Services (AWS)

Hiring Organisation
Jobleads-UK
Location
Greater London, 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 application assessment and decomposition. Database modernisation. Amazon is an equal opportunities employer. We believe passionately that employing a diverse workforce is central ...

Technical Business Analyst - SC Clearance, Legacy Migration, Remote

Hiring Organisation
Nova Source Technologies
Location
United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
+ Benefits This is a fantastic Technical Business Analyst (BA) opportunity to work with a UK-based technology services organisation, to support legacy system migration and process improvement for a critical IT transformation programme. The Technical Business Analyst is a remote working role, based in the UK. Travel … skills essential. Key Skills as Technical Business Analyst: Experience gathering, validating, and translating requirements in complex enterprise environments. Knowledge of evaluating legacy applications, such as Notes, for migration or remediation. Skilled in mapping high-level processes and producing clear artefacts using tools like Visio and Nimbus. Ability ...

DevOps Engineer AWS

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£560/day £560 p/d Inside IR35
transformation programme. You will play a key role in the design, automation, and migration of critical database platform services into AWS, helping modernise legacy environments and deliver secure, scalable cloud solutions. What You'll Be Doing Design, build and maintain CI/CD pipelines using GitLab …/CD and GitOps practices Develop and manage Infrastructure as Code (IaC) using Terraform Support the containerisation and migration of legacy applications into Kubernetes environments Deploy and manage Kubernetes workloads using Helm and ArgoCD Collaborate with development and infrastructure teams to improve build, deployment and operational processes ...

Fullstack Developer

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £525 per day
Additional GCP experience within large-scale production environments Experience with search technologies such as Solr or Constructor Experience supporting and modernising legacy applications Previous involvement in high-traffic, customer-facing platforms Key Responsibilities Design, develop, and maintain full-stack applications across frontend and backend systems Build … unit, integration, and end-to-end testing layers Participate in code reviews and promote best engineering practices Monitor, troubleshoot, and resolve production issues Optimise applications for performance, scalability, and reliability Work closely with Product, Design, QA, and Engineering teams Mentor and support junior team members where required Additional Information ...

Software Engineering Manager

Hiring Organisation
VIQU IT Recruitment
Location
Cardiff, South Glamorgan, Wales, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
lead enterprise-wide software engineering and architecture as part of a major digital transformation programme. You'll shape technical strategy, modernise legacy applications, and drive the delivery of secure, scalable solutions using the latest Microsoft technologies. Working closely with senior stakeholders, development teams and external partners ...

Windows Migration Engineer

Hiring Organisation
Kingdom People
Location
London, United Kingdom
Employment Type
Contract
Windows operating system architecture, application dependencies, legacy technologies, and software compatibility. They will be responsible for analysing, remediating and migrating business-critical applications operating within highly complex environments where compatibility, stability and service continuity are paramount. The engineer will be expected to resolve deeply technical migration issues … involving legacy applications, obsolete components, scripting languages, dynamic link libraries (DLLs), COM objects, registry dependencies and deprecated Windows technologies. The role will be office based, 5 days a week in central London. ...

Platform Modernisation Lead

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£800 - £900/day
excellence. Maintain end-to-end accountability for platform production readiness, ensuring it meets enterprise standards. Support and enable the migration of legacy applications to the cloud, contributing to broader cloud adoption initiatives. Collaborate with cross-functional teams to ensure operational readiness, resilience, and effective integration into live ...

ERP Project Manager

Hiring Organisation
Experis
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
£43000 - £45000/annum bonus + bens
migration planning and execution, working closely with business stakeholders, technical teams, and implementation partners to ensure a successful transition from legacy applications to a modern cloud-based ERP platform. Key Responsibilities Lead the ERP Data Migration workstream from planning through execution, go-live and hypercare support. Develop ...

Lead Risk Software Engineer LDN

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Capability to translate business needs into technical solutions and explain technical constraints in business terms Willing to understand and work on legacy applications when required Preferred Qualifications Prior experience with other financial risk stack platforms such as SecDB, Quartz, or Athena Knowledge of rates products including Swaps ...

Lead Risk Software Engineer LDN

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Capability to translate business needs into technical solutions and explain technical constraints in business terms Willing to understand and work on legacy applications when required Preferred Qualifications Prior experience with other financial risk stack platforms such as SecDB, Quartz, or Athena Knowledge of rates products including Swaps ...

PowerBuilder Consultant

Hiring Organisation
Henderson Scott
Location
City of London, London, United Kingdom
Employment Type
Contract
wants to use that experience to influence application modernisation rather than day-to-day feature development. You'll be responsible for: Reviewing existing PowerBuilder applications Investigating performance, stability and technical issues Assessing application architecture and integrations Identifying technical risks and improvement opportunities Producing recommendations and technical documentation Helping define … future modernisation and migration strategies Working closely with technical and business stakeholders Experience assessing or modernising legacy applications would be highly beneficial. Location: Nearest tube Liverpool St/Bank (2 days per week) If you like to hear more, please apply for more information. ...

SAP Technical Project Manager

Hiring Organisation
Robert Half
Location
Solihull, West Midlands, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £600 per day
MuleSoft) Overseeing SAP GRC Access Control lifecycle and risk/compliance rule updates Driving rationalisation of SAP Fiori and decommissioning of legacy applications Owning planning across requirements, build, testing, and deployment phases Coordinating SMEs, delivery teams, and managing dependencies, risks, and timelines Required Experience: Strong experience ...

Manual Tester - CESA Legacy (SFIA 5)

Hiring Organisation
TXP
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £525/day
Manual Tester - CESA Legacy (SFIA 5) Location: Telford Site Presence: Min 2 x monthly Rate: £500 - £525 per day inside IR35 Clearance : BPSS only Overview We are looking for an experienced Manual Test Analyst to support delivery within the CESA Legacy estate. This role is focused … minimal onboarding. Previous experience working within the CESA estate is considered essential. Key Responsibilities Perform manual functional and regression testing across the CESA Legacy application. Review requirements, change requests and defect fixes to determine appropriate test coverage. Create, maintain and execute manual test cases. Record, manage and retest ...