26 to 50 of 76 Legacy Applications Jobs in the UK

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 ...

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 ...

major SAP S/4HANA transformation programme. You'll act as a key link between users, business systems and software development, supporting business-critical applications while helping prepare systems and data for migration into SAP. The role combines application support, troubleshooting, bug fixing, data validation and development work, making … transformation and international project delivery, working alongside teams across the UK and Europe. Responsibilities Provide application support for business-critical systems and desktop applications Triage, investigate and resolve user-reported incidents and issues Escalate complex problems where appropriate Analyse application defects and deliver bug fixes and enhancements Support users ...

Factory Edge programme. This is an opportunity to shape the architecture of a distributed edge computing platform supporting manufacturing environments, spanning virtual machines, containerised applications, industrial systems, data platforms and AI workloads. You'll define the reference architecture, establish reusable infrastructure patterns and guide technology decisions to ensure factory … across a geographically distributed manufacturing estate. You'll define architecture standards and reusable hosting patterns for traditional virtual machine workloads, Kubernetes and containers, manufacturing applications such as MES and UNS, legacy systems, and emerging AI and GPU-enabled workloads. Working across infrastructure, cloud, networking, cyber security ...

digital experiences and become the technical authority behind our customer-facing web platforms? Want to lead the design and delivery of scalable, cloud-first applications that make a real difference to people's lives? Excited by the challenge of modernising legacy systems while driving engineering excellence across … React, and NextJS ecosystem, ensuring consistency, maintainability, and quality across our software landscape. Remaining hands-on, you'll design, build, and maintain cloud-native applications using AWS technologies including Lambda, API Gateway, RDS, and Cognito. You'll develop reusable React components and shared libraries, contribute high-quality code ...

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 ...

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 ...

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 ...

clients across industry sectors - helping them turn their cloud strategy into reality. Help design and deliver transformative cloud solutions - from migrating legacy applications onto Cloud, to building innovative, new cloud-native applications. Continue to learn and grow - we actively encourage and support continuous learning and certification. Serve ...

clients across industry sectors - helping them turn their cloud strategy into reality. Help design and deliver transformative cloud solutions - from migrating legacy applications onto Cloud, to building innovative, new cloud-native applications. Continue to learn and grow - we actively encourage and support continuous learning and certification. Serve ...

existing off-the-shelf MRP system, with a modern, over-arching MRP/ERP system; plan and execute its implementation, specify which custom applications can be transferred into the core of the new MRP system, as well as modernising and improving custom, in-house apps that remain. Production Systems … across production systems, fix and mitigate reoccurrence Introduce appropriate automated and unit testing to improve software and production-system reliability. Support existing business-critical applications while progressively modernising or replacing legacy solutions ERP/MRP & systems modernisation and implementation Integration of in-house custom systems with ...

existing off-the-shelf MRP system, with a modern, over-arching MRP/ERP system; plan and execute its implementation, specify which custom applications can be transferred into the core of the new MRP system, as well as modernising and improving custom, in-house apps that remain. Production Systems … across production systems, fix and mitigate reoccurrence Introduce appropriate automated and unit testing to improve software and production-system reliability. Support existing business-critical applications while progressively modernising or replacing legacy solutions ERP/MRP & systems modernisation and implementation Integration of in-house custom systems with ...

deployment instructions and support handover material. Experience integrating Oracle Fusion with enterprise platforms such as ServiceNow, SAP, Workday, Azure‐hosted services, legacy applications or third‐party SaaS systems. Proven ability to operate in a client‐facing technical lead role within structured delivery programmes. Experience delivering within … Work for 10+ years running This is hybrid based with occasional travel to your nearest base office. Malti Sharma, Senior Talent Acquisition Consultant – Enterprise Applications (Oracle Cloud - ERP, HCM, EPM) #LI-MS3 #LI-Hybrid We are an equal opportunities employer. Please refer to our Diversity & Inclusion statement located ...

will be responsible for design and optimise SQL queries, develop stored procedures, and participate in the migration and modernisation of legacy applications to support ICE Derivatives and ICE Mortgage. The candidate should have a strong background in SQL and scripting. Responsibilities Provides Snowflake-based data warehouse design ...

resilient CI/CD toolchains across multi-cloud environments. You will enable scalable, highly available services and work within agile teams to modernize legacy applications. The role requires active SC clearance, extensive AWS experience (EC2/ECS), and IaC with Terraform/Ansible, plus GitLab CI expertise ...

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 ...

will be working closely with several customers to maintain, develop, innovate & improve current applications, both technical & consultancy role in project work and having the ability to influence the direction of the clients. Working in Version 1, you will have the opportunity to work on a wide range of technologies … client's user needs using C#/.Net Write custom code and support our clients Developing innovative technology and modernise legacy applications Follow best practice guidelines and help to improve those guidelines. You will be creating best in class documentation with our client users in mind. Qualifications ...

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 ...

agreed requirements, standards and best practice Modernise our digital estate - Improve existing services, reduce technical debt and support the modernisation of legacy applications Collaborate across platforms, services and suppliers - Work with stakeholders, project teams and suppliers to deliver joined‐up solutions and maximise value Drive continuous improvement … capability across the wider team You’ll work across a varied technology estate, with complex platforms, services and integrations. You’ll help modernise legacy systems and build secure, accessible and sustainable digital services You’ll have the opportunity to influence how solutions are designed and built, not simply ...

join our end-user computing team on a fixed-term basis. You'll be the go-to expert for packaging, deploying and maintaining applications across a large enterprise estate, using SCCM and Intune to deliver reliable, compliant and well-documented deployments. This is a hands-on, senior-level role … modernising Legacy applications. Key Responsibilities Create and maintain application packages using tools such as AdminStudio, InstallShield and PowerShell. Repackage Legacy applications for modern deployment platforms, including Intune and MSIX. Deploy applications through SCCM and Intune, ensuring correct user- or device-based targeting and compliance ...

join our end-user computing team on a fixed-term basis. You'll be the go-to expert for packaging, deploying and maintaining applications across a large enterprise estate, using SCCM and Intune to deliver reliable, compliant and well-documented deployments. This is a hands-on, senior-level role … modernising legacy applications. Key Responsibilities Create and maintain application packages using tools such as AdminStudio, InstallShield and PowerShell. Repackage legacy applications for modern deployment platforms, including Intune and MSIX. Deploy applications through SCCM and Intune, ensuring correct user- or device-based targeting and compliance ...

zones, hands‐on with Terraform and Helm Architect platforms that host and serve generative AI systems (LLM hosting, LLM gateways, agentic workflows) Guide legacy application modernisation, microservices migrations, and API integrations Implement security end‐to‐end across the platform: security tooling built into CI/CD pipelines, namespace ...

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 ...

based on emerging and future technology trends; and establish a catalogue that supports the reuse of new technology components, whilst targeting legacy applications and technology for decommissioning. The role should also help to execute and govern the strategy, by helping solution architects and projects to design solutions … future technology market trends and their impact on the business Develop and maintain expert knowledge of our client's technology ecosystem, incl. the main applications and technologies that interact with FEM technologies Work with Capability CTOs, technical SMEs and specific projects to analyse and translate business requirements into technical ...