26 to 50 of 86 Legacy Applications Jobs in the UK

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 ...

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 ...

Flexible Role Overview We are seeking an experienced Senior Test Environment & Platform Manager to support a major enterprise technology transformation, moving from a legacy monolithic landscape towards a modern microservices-based architecture using Java, Kafka and OpenShift. This is a highly technical Test Environment Management position combining environment … Work closely with architects, engineering teams, developers, QA and delivery squads to understand environment requirements. Ensure environments can effectively support both legacy applications and new microservices-based services. Define environment standards, processes, governance and operating models. Environment & Platform Management Support the design, provisioning, configuration, maintenance and decommissioning ...

Flexible Role Overview We are seeking an experienced Senior Test Environment & Platform Manager to support a major enterprise technology transformation, moving from a legacy monolithic landscape towards a modern microservices-based architecture using Java, Kafka and OpenShift . This is a highly technical Test Environment Management position combining … Work closely with architects, engineering teams, developers, QA and delivery squads to understand environment requirements. Ensure environments can effectively support both legacy applications and new microservices-based services. Define environment standards, processes, governance and operating models. Environment & Platform Management Support the design, provisioning, configuration, maintenance and decommissioning ...

looking for an accomplished Senior Umbraco Full Stack .NET Developer to take a lead hands-on role designing, developing and delivering modern web applications, customer-facing digital platforms and CMS-driven solutions. You'll work across both new builds and existing client solutions - developing new functionality, integrating third-party … experienced developers where needed. ABOUT THE CLIENT Our client is an established and expanding technology company specialising in digital transformation, bespoke software development, enterprise applications and the ongoing support and modernisation of business-critical systems. They work closely with their clients to understand real business challenges and deliver robust ...

Senior Software Engineer C#/.NET | Desktop Applications | Cloud | Software Modernisation 3 days per week onsite The Opportunity We are looking for experienced Software Engineers and Senior Software Engineers to join a highly technical product engineering team developing and modernising complex, high-performance software applications. This is a hands … involved in software development rather than moving towards people management. What You'll Be Doing Design, develop and maintain complex desktop and cloud-based applications using modern software engineering practices Write clean, maintainable and well‐tested C#/.NET code Apply object‐oriented principles, SOLID, design patterns and appropriate ...

future products using our modern stack (NestJS, TypeScript, GraphQL via Hasura, PostgreSQL, Vue.js) Legacy platform work - maintaining and improving our older Node.js applications (Express, Handlebars, MongoDB) Data and ingestion - working with large datasets, building and optimising data pipelines, and ensuring our systems perform at scale This … solution design through to production release Working with and optimising databases and data pipelines for performance and scale Maintaining and improving legacy applications alongside new product development Performing code reviews and upholding code quality standards Proactively identifying and driving improvements to software, tooling, and processes Protecting ...

Oversee technical aspects of regional EMEA, APA, and LATAM corporate hierarchy and limits applications Maintain secure, resilient, and highly available critical systems Contribute to modernization of mainframe-based systems toward scalable, cloud-aligned architectures Maintain and enhance COBOL/DB2-based applications Advance distributed, API-driven, and event … COBOL, JCL, CICS, and DB2 Proven track record of maintaining and enhancing mission-critical enterprise systems Demonstrated ability to analyze complex legacy applications and identify modernization opportunities Excellent problem-solving, debugging, and communication skills Growth mindset with a strong desire to expand skills into distributed systems ...

engineering capability across teams.Help engineers to grow and solve engineering blockers. About You 5+ years of experiencedesigning and delivering enterprise level cloud‐based web applications and services, gained as a hands‐on Technical Architect, Principal Engineer, Lead Engineer or in a similar senior technical role. Able to communicate complex … operation of live services. Desirable experience Experienced working in a regulated,public‐sector,or safety‐critical environment. Experienced modernising or replacing legacy applications whilst continuing to support live services. Experienced designing solutions that use AI,automation,or intelligent services appropriately and securely. Relevant Microsoft Azure certifications. Additional ...

worked remotely As an Application Packaging Engineer, you will join a specialist engineering team responsible for the technical discovery, packaging, and deployment of applications across enterprise endpoints using Intune and Microsoft Configuration Manager (MECM/SCCM). This is a hands-on technical role requiring demonstrable expertise Role & Responsibilities … packages using MasterPackager (MSI), Microsoft App-V Sequencer, PowerShell, and PowerShell Application Deployment Toolkit (PSADT). * Legacy Repackaging - Repackage legacy applications for deployment to modern platforms such as Intune and Windows 365. * Application Deployment - Deploy and test applications using Intune, Citrix, and SCCM ...

worked remotely As an Application Packaging Engineer, you will join a specialist engineering team responsible for the technical discovery, packaging, and deployment of applications across enterprise endpoints using Intune and Microsoft Configuration Manager (MECM/SCCM). This is a hands-on technical role requiring demonstrable expertise Role & Responsibilities … packages using MasterPackager (MSI), Microsoft App-V Sequencer, PowerShell, and PowerShell Application Deployment Toolkit (PSADT). * Legacy Repackaging - Repackage legacy applications for deployment to modern platforms such as Intune and Windows 365. * Application Deployment - Deploy and test applications using Intune, Citrix, and SCCM ...

trade and asset servicing operations across global financial markets. You will play a key role in the design, development and enhancement of enterprise-grade applications used to manage complex asset servicing processes, corporate actions, income processing, custody operations and client reporting. Working within an Agile delivery environment, you will … fellow engineers to deliver innovative solutions that improve operational efficiency, client experience and platform scalability. Responsibilities Design, develop and maintain scalable full stack applications using Java and React. Build and enhance microservices and RESTful APIs supporting Asset Servicing platforms. Develop responsive user interfaces using React, TypeScript and modern front ...

systems into modern Java/Angular solutions. Design, build, and optimise backend services using Java, Spring Boot, and SQL. Develop responsive frontend applications with Angular, RxJS, and NgRX. Implement CI/CD pipelines and DevOps best practices. Collaborate with business stakeholders to translate requirements into scalable solutions. … Maintain high code quality through testing, automation, and peer reviews. Support multiple applications within a complex platform environment. Must-Have Skills Java 11+ (Java 17+ preferred) Spring Boot Angular 14+ (Angular 18 preferred) Strong SQL expertise RxJS and NgRX Docker Git CI/CD and DevOps practices Experience working ...

scale technology environment. Working as part of an Agile Scrum team, you'll contribute to the design, development, and enhancement of modern Java-based applications, helping to drive the transformation of critical business systems. Key Responsibilities Develop and maintain Java applications using modern engineering practices. Design and build … quality-first engineering culture. Collaborate with Product Owners, Architects, Developers, and Test Engineers within Agile delivery teams. Support the modernisation of legacy applications and services. Contribute to technical design discussions and code reviews. Follow CI/CD and DevOps best practices to ensure reliable delivery. Essential Skills ...

scale technology environment. Working as part of an Agile Scrum team, you'll contribute to the design, development, and enhancement of modern Java-based applications, helping to drive the transformation of critical business systems. Key Responsibilities Develop and maintain Java applications using modern engineering practices. Design and build … quality-first engineering culture. Collaborate with Product Owners, Architects, Developers, and Test Engineers within Agile delivery teams. Support the modernisation of legacy applications and services. Contribute to technical design discussions and code reviews. Follow CI/CD and DevOps best practices to ensure reliable delivery. Essential Skills ...

building new user-facing features across a modern SaaS platform. At the same time, you'll help support and enhance a number of existing applications built in Vue.js, making it essential that you're comfortable working across both technologies. This role would suit an experienced frontend engineer who enjoys … solving complex UI challenges, writing clean and maintainable code, and collaborating closely with Product, Design, and Engineering teams. Skills Strong commercial experience developing frontend applications with React Previous experience working with Vue.js and confidence supporting legacy applications Strong JavaScript and/or TypeScript skills Excellent knowledge ...

APIs using C# and modern .NET/ASP.NET Core. Contribute to architectural decisions across backend services, integrations and data. Modernise legacy applications into scalable, maintainable web-based solutions. Collaborate with cross-functional teams to deliver robust technical solutions. Promote engineering best practices, including automated testing, code quality … systems. Solid SQL and relational database knowledge. Strong understanding of software design principles, dependency injection and automated testing. Experience working on complex or legacy software modernisation projects. Excellent communication skills with the ability to influence technical decisions. Desirable Skills Docker and Kubernetes. PostgreSQL, Redis or Elasticsearch. GraphQL. RabbitMQ ...

/CD pipelines and implement Infrastructure as Code. Senior Cloud Platform Engineer-SC Security Clearance-Essential Experience Proven experience in Build and Migration of Applications and Services to Public Cloud Platforms, Operation and Deployment of DevSecOps tooling and development of infrastructure as code using Terraform or Bicep. Deep understanding … Cloud Security principles and Zero Trust Architectures. Deep technical knowledge of Microsoft Azure, Building Cloud Platforms, Migrating Applications to Cloud Platforms. Agile Delivery using standard DevSecOps toolchains Knowledge of NCSC, GDS, and UK government security frameworks, including Secure by Design, Cloud Security Principles, Government Functional Standards, and the Technology ...

application modernisation programme within a leading financial services organisation. The role will define and implement enterprise-scale Azure and Google Cloud architectures, supporting legacy application migration, banking platform modernisation and the adoption of secure cloud-native services. The successful contractor will combine strong architectural thinking with the practical ...

products, sell them through our own e-commerce platform and ship them from our own warehouse. Behind the website sits a set of internal applications connecting orders, stock, finance, fulfilment and manufacturing, alongside a growing number of marketplaces and third-party services. We are replacing those legacy internal applications with a new cloud-native platform: independently deployable services that will become the single integration layer between the website, finance, warehouse and manufacturing, and a foundation for AI-assisted automation across the business. This role is a core builder of that platform. You will join ...

FTC. This role will be accountable for planning, leading and controlling the successful transition from existing systems to new systems across a complex enterprise applications environment. The role will establish and manage the cutover strategy, detailed runbooks, readiness criteria, control approach, stakeholder engagement and execution governance required to deliver … What we are looking for Experience with Workday, Dynamics 365, finance, HR or other enterprise SaaS implementations Experience coordinating decommissioning of legacy applications, including archive, access, reporting and audit considerations Knowledge of data migration, integration validation, service transition and operational readiness practices Experience using project delivery ...

FTC. This role will be accountable for planning, leading and controlling the successful transition from existing systems to new systems across a complex enterprise applications environment. The role will establish and manage the cutover strategy, detailed runbooks, readiness criteria, control approach, stakeholder engagement and execution governance required to deliver … What we are looking for Experience with Workday, Dynamics 365, finance, HR or other enterprise SaaS implementations Experience coordinating decommissioning of legacy applications, including archive, access, reporting and audit considerations Knowledge of data migration, integration validation, service transition and operational readiness practices Experience using project delivery ...

ambiguity. You care more about solving the problem effectively than being strictly tied to one programming language. Bonus Points Experience migrating legacy applications (e.g., Ruby/Python to Rust). Contributions to open-source projects in Rust, Ruby, or Python. Familiarity with WebAssembly (Wasm). … Randstad Technologies Ltd is a leading specialist recruitment business for the IT & Engineering industries. Please note that due to a high level of applications, we can only respond to applicants whose skills & qualifications are suitable for this position. No terminology in this advert is intended to discriminate against ...

estate. This organisation is investing heavily in modernising its technology environment, including the implementation of Dynamics 365, Microsoft Fabric and the replacement of legacy systems. You'll join an established transformation team and act as the key Solutions Architect, helping define how systems, platforms and integrations fit together … across Dynamics 365, Azure, Power Platform, Microsoft Fabric and wider enterprise systems * Design integrations and support the migration and decommissioning of legacy applications * Work with development teams, technical specialists and external suppliers to turn architecture into deliverable solutions * Provide technical leadership while helping shape the longer-term ...

ROLE As an Tech Lead on the AWS Cloud Migration, you will provide technical leadership across the refactoring of legacy applications for a Tech Debt programme. Embedded alongside client teams and a broader programme network, you will guide technical design, ensure architectural alignment, and assure the quality … Assurance: Reviewing and assuring the quality of critical technical artefacts, codebases, and architectural documentation. Refactoring Strategy: Guiding the architectural breakdown and refactoring of legacy technical debt into modern, scalable cloud components. Cross-Functional Collaboration: Partnering directly with client teams, specialists, and external suppliers across a large-scale programme ...