1 to 25 of 81 Legacy Applications Jobs in the UK

Cleared Software & Systems Engineer to join an onsite development support team working within a specialist IT function supporting critical law-enforcement applications and systems. This is a genuinely varied engineering role. You'll be supporting a mixture of bespoke and Legacy applications, working across development, infrastructure … Clearance (non-negotiable) Contract Length : 6-12 months What you'll be doing Supporting and developing a range of bespoke and Legacy applications Diagnosing and resolving technical issues across applications, infrastructure and systems Developing and maintaining solutions using Python/Java Working extensively with Linux/ ...

MongoDB's Application Modernization Platform (AMP) team aims to grow the adoption of MongoDB by accelerating the rate at which legacy applications built on RDBMS can be modernized to MongoDB. The AMP team uses a combination of proprietary GenAI and deterministic tools combined with modernization techniques (methodologies … developed over numerous customer engagements to modernize legacy applications to MongoDB. This involves modernizing both the application tier by decomposing the legacy application into services and building modern services on MongoDB. Our modernization methodologies involve apply specialized tools that automate a wide variety of modernization ...

effective automated test suites, remediating security vulnerabilities, performing dependency and reachability analysis, upgrading Java and NPM runtimes, modernizing Spring and legacy middleware applications, improving CI/CD pipelines, containerizing applications, automating deployments, and introducing standard observability and resilience patterns. The Expert FDE is expected to lead … operating systems to supported versions. Establish sustainable dependency-management processes with continuous library updates using Renovate or equivalent tools. Modernize legacy applications and middleware stacks, including those deployed on WebSphere or WebLogic. Containerize applications using Docker and support deployment to OpenShift. Improve source control, branch management ...

effective automated test suites, remediating security vulnerabilities, performing dependency and reachability analysis, upgrading Java and NPM runtimes, modernizing Spring and legacy middleware applications, improving CI/CD pipelines, containerizing applications, automating deployments, and introducing standard observability and resilience patterns.The Expert FDE is expected to lead complex … operating systems to supported versions.- Establish sustainable dependency-management processes with continuous library updates using Renovate or equivalent tools.- Modernize legacy applications and middleware stacks, including those deployed on WebSphere or WebLogic.- Containerize applications using Docker and support deployment to OpenShift.- Improve source control, branch management ...

responsible for developing and supporting business-critical platforms used to create, manage, publish, and analyse legal and regulatory content. Our work spans modern web applications, cloud services, content migration programmes, publishing platforms, reporting solutions, and operational tooling. We partner with editorial, product, and technology stakeholders to deliver high-quality … processes that are reliable, traceable, and governed.Integrate AI/ML capabilities with enterprise systems, APIs, databases, data platforms, content repositories, legacy applications, internal services, and AWS-hosted services.Establish evaluation and quality controls for accuracy, groundedness, citation quality, hallucination risk, agent task success, latency, cost, reliability, and business ...

responsible for developing and supporting business-critical platforms used to create, manage, publish, and analyse legal and regulatory content. Our work spans modern web applications, cloud services, content migration programmes, publishing platforms, reporting solutions, and operational tooling. We partner with editorial, product, and technology stakeholders to deliver high-quality … processes that are reliable, traceable, and governed. Integrate AI/ML capabilities with enterprise systems, APIs, databases, data platforms, content repositories, legacy applications, internal services, and AWS-hosted services. Establish evaluation and quality controls for accuracy, groundedness, citation quality, hallucination risk, agent task success, latency, cost, reliability ...

responsible for developing and supporting business-critical platforms used to create, manage, publish, and analyse legal and regulatory content. Our work spans modern web applications, cloud services, content migration programmes, publishing platforms, reporting solutions, and operational tooling. We partner with editorial, product, and technology stakeholders to deliver high-quality … processes that are reliable, traceable, and governed. Integrate AI/ML capabilities with enterprise systems, APIs, databases, data platforms, content repositories, legacy applications, internal services, and AWS-hosted services. Establish evaluation and quality controls for accuracy, groundedness, citation quality, hallucination risk, agent task success, latency, cost, reliability ...

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 ...

adoption portal, they will rely heavily on your guidance. You will define and implement Azure and GCP architectures, support migration of legacy applications, modernise core banking platforms, and ensure cloud solutions meet regulatory, operational, and security requirements. Key Responsibilities 🌐 Cloud Strategy & Architecture Define target architectures for cloud … standards. Align cloud platform capabilities with business, regulatory, and operational needs. Provide architectural leadership across transformation programmes. 🔧 Application Modernisation Assess legacy applications and define migration strategies: Rehost Replatform Refactor Cloud‐native transformation Support adoption of PaaS/SaaS aligned with the target operating model. Partner with engineering ...

development work, contribute to key business systems and help modernise existing technology. You'll work across a varied technical environment, developing and maintaining applications while also getting involved in improving systems, integrations and overall architecture. There's plenty of opportunity to broaden your technical skills and have a genuine … Technical Environment The ideal candidate will have strong commercial experience with: C# and .NET Framework WinForms , including maintaining and enhancing legacy applications Blazor SQL Server , including database design and optimisation System integration and managing data across multiple platforms Software development principles, testing and version control Experience working ...

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 ...

delivering cloud-based technology solutions. • Strong ability to translate complex or ambiguous business requirements into practical technical designs. • Experience with databases, analytics platforms, applications, dashboards, data workflows, automation or cloud migration. • Knowledge of cloud architecture principles, security, networking, identity and access management and role-based access control. • Understanding … market research or analytics consulting. • Understanding of research methodologies, survey data, statistical analysis or research delivery workflows. • Experience modernizing or migrating legacy applications and analytical environments. • Experience working within a large enterprise cloud environment with formal architecture, security and provisioning processesOnly Oracle brings together the data, infrastructure ...

exciting opportunity to join an established software business currently undertaking a large-scale modernisation programme, migrating a portfolio of public-facing web applications from legacy technologies to a modern React-based architecture. The successful candidate will join a collaborative development team working on the evolution … Role As a Full Stack Engineer, you will work as part of a close-knit development team responsible for delivering and maintaining modern web applications used by a wide customer base. You'll primarily work with C#/.NET on the backend while contributing to React-based frontend development ...

support application and database teams, and contribute to automation and CI/CD improvements. Key Skills Required Support and maintenance of legacy applications and infrastructure CI/CD pipeline development and support Automated testing and code refactoring Nginx, Apache Tomcat and HTTP services ETL processes Containerisation … Docker IBM Initiate MDM Responsibilities Provide L3 support and problem resolution for critical production systems Maintain and enhance legacy infrastructure and applications Implement changes within complex legacy environments Act as a subject matter expert for assigned platforms Produce and maintain technical documentation Perform peer reviews ...

strategic technology initiatives supporting business-critical data and analytics capabilities. Key Responsibilities Technical Leadership Lead the design and delivery of enterprise-grade software applications and data platforms using Python and C# (.NET). Define solution architecture and engineering standards for scalable, resilient, and maintainable systems. Act as a technical … authority for software engineering, database design, and data platform initiatives. Drive modernization of legacy applications and migration towards cloud-native architectures. Review technical designs and code to ensure alignment with engineering standards and best practices. Champion software quality, security, performance, and operational excellence. Data Platform & Solution Ownership ...

days per week onsite We're supporting a UK technology business with a large-scale modernisation programme, migrating complex legacy .NET applications into a cloud-native AWS environment. We're looking for experienced, hands-on .NET Engineers who have already delivered legacy-to-cloud modernisation … established engineering team from the outset. This isn't simply a .NET role requiring some exposure to AWS. First-hand experience building and migrating applications into containerised, event-driven AWS environments is central to the requirement. What you'll be working on Modernising and migrating legacy .NET ...

days per week onsite We're supporting a UK technology business with a large-scale modernisation programme, migrating complex legacy .NET applications into a cloud-native AWS environment. We're looking for experienced, hands-on .NET Engineers who have already delivered legacy-to-cloud modernisation … established engineering team from the outset. This isn't simply a .NET role requiring some exposure to AWS. First-hand experience building and migrating applications into containerised, event-driven AWS environments is central to the requirement. What you'll be working on Modernising and migrating legacy .NET ...

allowing the business growth NEXT has seen over the last few years. We never standstill, we are constantly looking to evolve our technology, our applications and the services we offer our stakeholders. We really are a group of people who love technology, pushing boundaries and answering the what … forcing through change and ultimately providing our customers with a better service. Like all departments, we also have challenges with some legacy applications and 'older' code languages but who doesn't love a good challenge? We can promise an environment that is never dull with the freedom ...

technology with scientific innovation We are seeking a Senior Software Engineer to join a highly skilled team developing next-generation Rock Physics and Geoscience applications used across the global energy sector. This is an opportunity to work on complex scientific software, influence technical direction, and help modernise a suite … ownership of technical solutions from architecture through to deployment.Working across modern C#/.NET and C++ codebases.Modernising legacy scientific software and migrating applications to modern frameworks and user experiences.Implementing best practices around software architecture, design patterns, SOLID principles, testing and CI/CD.Collaborating with Product Owners ...

distributed teams.Strong expertise within the Microsoft technology ecosystem, including C#, .NET, SQL Server, Azure, and related technologies.Experience designing and delivering scalable, cloud-native applications and services.Strong understanding of microservices, distributed systems, and modern software architecture principles.Ability to write, review, and guide the development of high-quality, well-tested, production … solving, communication, and stakeholder management skills.DesirableCloud platform certifications (Azure, AWS, or GCP).Experience with observability, monitoring, and performance optimisation practices.Experience modernising legacy applications and driving large-scale technical transformations.Key CompetenciesTechnical Leadership & ArchitectureSoftware Engineering ExcellenceCoaching & MentorshipCollaboration & Stakeholder ManagementOwnership & AccountabilityStrategic Decision MakingProblem Solving & InnovationContinuous Improvement MindsetWhy You’ll Love ...

allowing the business growth NEXT has seen over the last few years. We never standstill, we are constantly looking to evolve our technology, our applications and the services we offer our stakeholders. We really are a group of people who love technology, pushing boundaries and answering the what … forcing through change and ultimately providing our customers with a better service. Like all departments, we also have challenges with some legacy applications and 'older' code languages but who doesn't love a good challenge? We can promise an environment that is never dull with the freedom ...

Technical Requirements You will ideally have strong commercial development experience with: C# and .NET Framework WinForms development , including maintaining and enhancing legacy applications Blazor SQL Server , including database design and performance optimisation Experience integrating systems and managing data across multiple platforms Strong understanding of software development principles … testing and version control Experience with legacy technologies or applications is also valuable, particularly where you have worked with technologies such as VB.NET or Delphi . Desirable Experience Experience modernising legacy systems and moving towards more maintainable architectures Experience within manufacturing, logistics or another operational ...

Stored Procedures, SQL Server 2019 or 2022 and possibly with SQL Azure knowledge) plus some skills in C# and .Net to build back end applications and database fuctionality for the next generation of their SaaS platform used by global clients on Enterprise sized system applications. Their company are trusted … SaaS platform Experience and person profile: Strong experience developing and supporting production web applications. Excellent problem-solving and troubleshooting skills, particularly across backend applications and databases. A strong understanding of relational database design and SQL Server. The ability to understand complex systems and confidently investigate how application and database ...

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 ...

Responsibilities Software Development • Design, build, and maintain software solutions using Node.js with Express (backend) and Vue.js (frontend). • Support and maintain legacy applications in PHP and jQuery. • Write efficient database queries and structures in relational (MySQL/MariaDB) and NoSQL (MongoDB). • Develop secure, reliable, and scalable … applications with clear documentation. • Leverage modern tools such as Git, CI/CD pipelines, and automated testing frameworks. • Develop native software (C#, Android, iOS) or cloud-native services when required. Deployment & Maintenance • Deploy and maintain solutions in Docker containers and Linux VM environments. • Support cloud-hosted deployments (Azure ...