1 to 25 of 47 Legacy Applications Jobs in the UK

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 ...

Inside IR35) Remote 6 months My client is seeking a DevOps/Infrastructure Engineer to join a platform team supporting critical legacy applications and infrastructure, providing L3 support, platform enhancements and CI/CD improvements. Key Requirements: Proven experience within DevOps, Infrastructure Engineering or Platform Support. Active … Clearance (used within the last 12 months) and Active NPPV3 (used within the last 6 months). Experience supporting legacy applications and infrastructure, including Oracle 11 databases, Elasticsearch and enterprise middleware technologies. Strong Linux and Windows Server administration experience, with exposure to Solaris, Red Hat Enterprise Linux ...

technology consultancy seeking a Data Engineer with 5 years+ commercial experience to join a high-profile team supporting the decommissioning of legacy applications and the migration of data to modern platforms within a leading global investment bank. This is initially a 6 month contract with very good … further develop their career in data engineering and data management within a complex enterprise environment. Responsibilities Support the decommissioning of legacy applications through the extraction, analysis, validation and migration of data to target platforms. Investigate data-related issues impacting business processes, applications and downstream systems. Analyse ...

technology consultancy seeking a Data Engineer with 5 years+ commercial experience to join a high-profile team supporting the decommissioning of legacy applications and the migration of data to modern platforms within a leading global investment bank. This is initially a 6 month contract with very good … further develop their career in data engineering and data management within a complex enterprise environment. Responsibilities: Support the decommissioning of legacy applications through the extraction, analysis, validation and migration of data to target platforms. Investigate data-related issues impacting business processes, applications and downstream systems. Analyse ...

Doing Building scalable backend services using Python Designing robust, secure APIs powering critical customer-facing systems Breaking down and modernising legacy applications into distributed services Working on systems processing millions of events every day with high availability requirements Writing clean, well-tested, maintainable code following engineering best … databases Cloud platforms (ideally Azure) CI/CD pipelines Test-driven development and automated testing Building scalable production systems Experience modernising legacy applications or working within event-driven architectures would be particularly valuable. Why Join? This isn't a business standing still. In recent years they ...

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 ...

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 ...

away from legacy platforms and embrace modern architectures.You'll work with TXP's proprietary migration tooling to analyse, convert and validate enterprise applications, while helping shape the future of our conversion methodologies and automation capabilities. What you'll be doing As a Legacy Conversion Consultant … play a key role in delivering complex migration and modernisation projects, including: Analysing and assessing legacy applications, primarily developed in Gen. Executing application migrations using TXP's automated conversion tooling. Supporting the migration of applications to: Native COBOL environments (CICS, IMS-DC and DB2) Modern platforms ...

using Java, Spring Boot and React. Enhancing automation and digital case management tooling. Building secure REST APIs and event-driven microservices. Developing responsive web applications using React and Next.js. Supporting CI/CD pipelines and cloud-native deployments. Designing and implementing scalable technical solutions aligned to Digital First … TypeScript Node.js 18/22 OpenShift RabbitMQ PostgreSQL Jenkins Pipelines GitLab CI/CD You'll also demonstrate experience with: Building modern responsive web applications API design and integration Event-driven and service-oriented architectures Test-Driven Development (TDD) Pair Programming Consumer-Driven Contract Testing Agile delivery (particularly Kanban ...

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. ...

solutions from scratch, you will apply agentic AI to transform how projects are executed end‐to‐end. What you’ll do Architect AI‐powered applications using autonomous and semi‐autonomous agentic frameworks. Apply AI agents across all delivery phases: analysis, design, build, test, deploy, and operations. Modernise legacy applications using agentic AI for discovery, transformation, and refactoring. Define end‐to‐end architectures integrating traditional software, LLMs, vector stores, and orchestration. Drive AI adoption within Avanade Regions, enabling AI‐driven solution roadmaps. Contribute to solution planning and design across multi‐disciplinary and multi‐cloud environments. Develop ...

within a fast-paced investment management environment. Over time, the role will also contribute to the migration, modernization, and rationalization of legacy applications onto strategic platforms. Key Responsibilities Provide support and maintenance for business-critical front-office applications. Investigate, troubleshoot, and resolve application, data, and performance issues. … Develop and enhance applications using C#/.NET technologies. Design, develop, and optimize complex SQL queries, stored procedures, and database solutions. Build and support front-end functionality using React. Work closely with business users to understand requirements and deliver effective technical solutions. Produce operational and management reporting to support ...

site 8 days per month which is mandatory. Responsibilities Working as part of an Agile development team to deliver the migration of the legacy application to a new event-based and service-oriented architecture solution, working in collaboration with the Solution Architect, Technical Lead, Application architects and other ...

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 ...

deployment. 8 days on site per month. Responsibilities & Duties Work as part of an Agile development team to deliver the migration of the legacy application to a new event‐based and service‐oriented architecture solution, collaborating with the Solution Architect, Technical Lead, Application architects and other stakeholders. Lead ...

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 ...

team members with ETL/ELT tasks, data pipelines, SQL queries, troubleshooting, ticket logging and ticket management. Help monitor and support legacy applications while contributing to the gradual move towards the firm’s modern data and application technology stack. Support the development and maintenance of data visualisation … home and office working. This role attracts a split of 60% office days and 40% working from home days per week. We welcome applications from people looking for flexible, agile, and part-time roles and we are happy to explore your preferred working patterns as part of your application. ...

drive transformational outcomes across frontend modernization, platform migrations, and AI adoption. In this role, you will lead complex Next.js migrations, architect high-performance applications, and build production AI solutions—all within customer environments. You'll work hands‐on-keyboard alongside customer teams, whether you're migrating a legacy … customer codebases for performance bottlenecks, architectural anti‐patterns, and optimization opportunities—delivering actionable roadmaps that drive measurable improvements. Architect and implement high‐performance Next.js applications , leveraging App Router, Server Components, streaming, ISR, edge functions, and advanced rendering strategies to meet enterprise scale and performance requirements. Optimize Core Web Vitals ...

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 ...

OverviewIBM is seeking an experienced Application Consultant/Architect - AWS Cloud Migration to support the JSAPS Data Migration Discovery within the DWP's Legacy Tech Debt Programme.This programme is focused on identifying and defining the minimum viable dataset required to safely decommission JSAPS, a legacy benefits … within large-scale enterprise environments. Proven ability to define migration strategies, approaches, and roadmaps for complex transformation programmes. Experience working with legacy applications and databases, including assessment of migration risks and dependencies. Strong stakeholder management skills, with the ability to communicate effectively with both technical ...

some or all of the following would be advantageous: Microsoft .NET ASP.NET C# SQL Server Azure Modern web technologies Modernising Legacy applications Legal technology or other regulated software environments Working with external development partners Why Apply? Lead and shape the engineering function within a growing software business. ...

leading international professional services organisation. This is a highly technical analysis role focused on understanding and documenting the databases behind a complex legacy business application. You will work with Developers, Architects and business specialists … establish how the existing system operates and support its migration into modern cloud and document-based database technologies. Key responsibilities Analyse legacy applications, databases and source systems. Reverse-engineer database structures where documentation is limited. Document schemas, tables, columns, relationships, indexes and constraints. Identify business rules, data ...

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. ...

with a daily rate of €500 - €700, primarily focused on server-side development within an Agile team. Key responsibilities include migrating legacy applications to a new architecture, leading IT solutions delivery, and mentoring junior colleagues. Candidates must be based in the UK and available on-site ...

modernisation of front-office web applications. As an experienced Software Engineer you'll build and maintain Angular front-ends, migrate legacy applications onto modern frameworks, and deliver clean, reliable code to a high standard - with the seniority to mentor other developers along the way. 6+ years' full ...