23 of 23 Permanent Legacy Applications Jobs in the UK excluding London

dynamic team of developers and contractors, playing a key role in designing scalable, modern software solutions and leading the transformation of legacy applications into cutting-edge, web-based platforms using APIs and industry-standard technologies. This is your chance to drive innovation, influence system architecture, and contribute … digital infrastructure. You will also colaborate with stakeholders to gather business requirements and translate them into robust technical solutions and modernize legacy applications into scalable, web-based platforms. Using modern technologies, you will champion best practices for software architecture, coding standards, and performance, as well as troubleshoot More ❯

Owners, developers, and external stakeholders to define and work towards achievable goals. Here's What You Can Expect To Be Doing Building .NET Core applications Migrating legacy applications to .NET Core (Ruby and/or VB experience would be an advantage but not required) Working towards More ❯

JSON based Messaging. Experience on recent BizTalk versions including 2013. Strong knowledge of integration patterns, especially in integrating Portals/SSO, legacy applications, B2B Applications, external partners using BizTalk. Strong command on various BizTalk components like BRE and BAM and should have expertise in developing custom More ❯

/Senior/Lead levels to join their team. About the Team The Product Tech team is responsible for delivering a suite of Systems & Applications that support our Product Lifecycle and serve a diverse user base including Designers, Buyers, Merchandisers, Suppliers, and internal systems such as our Website, POS … assist in transforming the current monolithic system into a micro-service architecture. You will work on various high-profile projects, ensuring our systems and applications support our current and future product portfolio. As Next expands and adopts new initiatives, your work will help evolve our systems to support these … working practices, involvement in driving change, and the opportunity to improve customer service. The role also involves tackling challenges related to legacy applications and older code languages. You will contribute your analysis and development skills to create and enhance systems and applications, participate in out-of More ❯

optimization. Ensure minimal disruption to business operations during migration activities. Cloud Database Administration: Manage, monitor, and maintain databases within the cloud environment. Update legacy versions of SQL databases, ensuring compatibility with modern technologies and standards. Administer and manage Windows-based SQL environments across development, test, UAT, and production … editions. Create and implement comprehensive plans to update and migrate legacy databases. Collaborate with teams to resolve challenges involving legacy applications and their database dependencies. Infrastructure-as-Code (IaC): Design and deploy IaC solutions to automate database provisioning, scaling, and management. Collaborate with DevOps teams … Hands-on experience with Infrastructure-as-Code tools (Terraform, Azure DevOps, GitHub Actions). Proficiency in database migration techniques and tools, including updating legacy SQL versions. Solid understanding of CI/CD pipelines, automation, and DevOps practices. Excellent problem-solving, communication, and team collaboration skills. Preferred Qualifications: Certifications More ❯

London H/Q (option to work out Suffolk, South Wales or even Dublin too!) 5 days per week onsite. ICT Manager (of Enterprise Applications) is responsible for leading the strategic direction, oversight, and governance of enterprise applications. This includes managing key suppliers, ensuring application performance, stability, and lifecycle … term sustainability. The role also involves the integration of new products into the portfolio, following mergers and acquisitions, and driving consistency and adoption of applications across all entities. Maintain an application service catalogue and identify shadow IT risks Develop exit strategies for key applications to ensure robust contingency … planning Drive decommissioning of legacy applications to optimise the application landscape Raise and track risks associated with applications to support enterprise risk management Expand and formalise supplier and contract management, covering security & regulatory elements, compliance, service metrics, cost control and supplier effectiveness Foster a strategic, long More ❯

side logic of web and mobile applications. You will collaborate with front-end developers to integrate user-facing elements, optimize performance, and enhance legacy systems. This role involves troubleshooting, debugging, and implementing solutions that ensure security, efficiency, and alignment with business needs, ultimately driving innovation and improving … user experience. Key Responsibilities: Participate in the entire application lifecycle, focusing on coding and debugging Write clean code to develop functional web and mobile applications Troubleshoot and debug applications Participate in UI tests to optimize performance Manage cutting-edge technologies to improve legacy applications Collaborate More ❯

across a multi-cloud, high-transaction environment where compliance, trust, and communication are critical. You’ll work across Azure, GCP, and OCI, with legacy AWS components being transitioned to Azure. What You’ll Be Doing: Assist … on cloud security architecture, primarily across Azure, with some GCP and OCI. Partner with IT and the business to assess and secure key cloud applications and infrastructure. Assist in migrating and securing legacy applications into a newly structured cloud tenancy. Ensure alignment with compliance frameworks like More ❯

Core. Database expertise – working knowledge of SQL Server/T-SQL. Source control systems – proficient with Git. Security best practices – familiarity with securing web applications, handling vulnerability findings, and implementing security patches. Performance optimization – ability to identify and resolve performance bottlenecks across the stack. Experience maintaining and modernizing legacy applications – with a pragmatic approach to balancing short-term needs and long-term improvements. If this sounds like the role for you, click ‘apply now’ and a member of our team will be in touch. More ❯

per annum + Benefits Drive the Future of Enterprise Migration We are seeking a Migration Architect to lead the transformation of mission-critical applications, data, and infrastructure. This role is ideal for an experienced architect with a deep understanding of migration strategies and cloud technologies, ensuring seamless transitions with … minimal disruption to business operations. Key Responsibilities: Own and manage the migration of legacy applications from planning to execution. Design and implement comprehensive migration strategies across cloud and on-premises environments . Assess existing systems to determine migration requirements and develop technical roadmaps . Lead high-impact More ❯

looking for a Dynamics Developer to play a key role in the Felix IT Team to support our continued support and development of bespoke applications built on the Microsoft Dynamics technology stack. This role will report into the Senior System Administrator who is responsible for our Microsoft Dynamics environment. … Felix Project, we are embarking on a journey to apply technology and IT systems to streamline the business and become more efficient. Our core applications are all based on the Microsoft suite – Dynamics, M365, Power BI, Fabric, Real Time Marketing and SharePoint. We also use the Microsoft Security and … from time to time. Person Specification We are looking for a Dynamics Developer with experience helping to continue our migration of legacy applications and spreadsheets into D365. We have a limited external support contract from a near shore support centre in Bratislava and an offshore support development More ❯

fixes to the strategic reporting and surveillance platforms Creating functional requirements for migration of the reporting logic currently accommodated by other legacy applications onto the strategic reporting platform Engaging upstream system owners where changes are required for regulatory reporting purposes Performing some BAU support tasks related to … defining requirements Working with development teams to ensure requirements are understood Defining scope of testing, working with testers, validating test results Support the existing applications, assist in diagnosis and resolutions of issues Skills/experience required: Skills required: 5 years minimum experience of being a business analyst, ideally in More ❯

its payments platform, and this role is a key part of that journey. The Payment Evolution Project is focused on containerising and modernising existing applications for Azure deployment. This is a technical migration, not a major functionality rewrite-our goal is to transition to a more scalable, cloud-native … architecture while maintaining stability. As a Senior Developer, you'll be working with .NET, Azure, and Kafka, ensuring that applications are optimised for cloud deployment and aligned with modern development practices. You'll assess the right .NET versioning strategy, manage dependency transitions (e.g., moving from MSMQ to Kafka), and … ll also be working on new features rollout in the existing system or new projects. What You'll Be Doing: Modernising and containerising existing applications for Azure deployment. Evaluating and implementing the right .NET framework version for each application. Adjusting and updating code to support dependency transitions and framework More ❯

end-to-end cloud architectures aligning with business and technology objectives. Develop strategies for cloud adoption, migration, and modernization, ensuring seamless transitioning from legacy systems. Design and implement multi-cloud, hybrid cloud, or cloud-native architectures for scalability and resilience. Provide architectural guidance on security, compliance, and governance … databases, preferably Azure CosmosDB, Neo4j Graph DB (or similar technology e.g., Amazon RDS, Azure SQL, BigQuery, NoSQL). Application Architecture & Security Architect microservices-based applications, ensuring modular, scalable, and API-first designs Design and implement application security controls, including IAM, Zero Trust models, encryption, and API security best practices. … welcome requests prior to you completing the application and at any stage of the recruitment process. Next Steps Due to a high volume of applications, we will be unable to contact each applicant individually on the status of their application. If you have not received a direct response within More ❯

London, UK . This is a full-time, permanent role ideal for professionals who are passionate about building scalable backend systems and modernizing legacy architectures. You will play a key role in migrating .NET-based systems to Python , while collaborating closely with cross-functional teams to deliver high … contribute to long-term strategic system improvements. Key Responsibilities: Develop, enhance, and maintain backend services using Python . Participate in the modernization of legacy .NET systems , including understanding and re-architecting existing logic in Python. Design and optimize SQL queries and manage relational database integrations . Collaborate with … SQL and working with relational databases (e.g., PostgreSQL, MySQL, SQL Server). Background in C# , Java , or C++ – essential for understanding and translating legacy code during migration. Experience with software development best practices including version control, testing, and CI/CD. Good problem-solving skills and the ability More ❯

its payments platform, and this role is a key part of that journey. The Payment Evolution Project is focused on containerising and modernising existing applications for Azure deployment. This is a technical migration, not a major functionality rewrite-our goal is to transition to a more scalable, cloud-native … architecture while maintaining stability. As a Software Engineer, you'll be working with .NET, Azure, and Kafka, ensuring that applications are optimised for cloud deployment and aligned with modern development practices. You'll assess the right .NET versioning strategy, manage dependency transitions (e.g., moving from MSMQ to Kafka), and … ll also be working on new features rollout in the existing system or new projects. What You'll Be Doing: Modernising and containerising existing applications for Azure deployment. Evaluating and implementing the right .NET framework version for each application. Adjusting and updating code to support dependency transitions and framework More ❯

and cons of each option. Main Responsibilities Collaborate with key stakeholders to understand and influence functional and non-functional requirements for new and legacy applications. Develop high-level design specifications with attention to systems integration, maintainability, performance/scale, and feasibility. Use tools and methodologies to create representations … tools, security tools, and application/systems monitoring. Experience in Agile development practices at scale. Demonstrable experience with at least 2 different enterprise class applications in two or more product organizations. 6+ years of architecture and design practice on enterprise applications with a total of 12+ years in More ❯

Security Architect within the NHSBSA Security Architecture team is a pivotal role responsible for defining the security architecture strategy and directing security solutions for applications, information, and infrastructure. This role is crucial as the NHSBSA transforms its IT systems to better support the business. We are looking for the … stakeholders including customers, suppliers, and partners. Stakeholder Engagement : Facilitate collaborative approaches, prioritize requirements, and optimize resource utilization.Technical Expertise: Advise on standards, methods, tools, and applications to deliver optimal solutions. Blueprint Management : Control IT Security Blueprints, defining end state architecture, current state, and transition roadmaps. Roadmap Execution : Support the creation … undertake detailed security analysis of technical designs and provide the business with security assurance of supplier designs and proposals. 6.Broad technical knowledge covering web applications and services, information, infrastructure, cloud and managed service architectures. Knowledge of GDS Principles, NCSC guidance and familiarity with the requirements of the Government Security More ❯

storage technologies such as NetApp & Dell, including troubleshooting. Active Directory management within on-premise environments. Development of customer desktop builds with bespoke/legacy applications. Application packaging and deployment skills. Experience managing and supporting Microsoft Exchange (from 2013 onwards). Knowledge of MS SQL Server, SQL Database Clustering … gym memberships, holidays, cycle to work) • Flexible working arrangements Commitment to Diversity: We embrace diversity and are committed to an inclusive culture. We welcome applications from all parts of the community and offer equal opportunities. If you require reasonable adjustments during the application process, please inform us, and we More ❯

eager to grow their experience in modern web development and legacy system support You'll be involved in both maintaining existing WinForms applications and contributing to new development using Blazor. You'll also work with SQL Server and have the opportunity to build custom interface layers for … with C# (core language focus) Exposure to Blazor or other modern web UI frameworks (e.g., Razor Pages, React, Angular) Familiarity with WinForms for legacy application support Ability to read and understand VB.Net Competence in SQL Server: writing queries, stored procedures, and understanding relational databases Experience with Entity Framework More ❯

Management and troubleshooting of Active Directory within an on premise environment. Development of a customer desktop build with a number of bespoke/legacy applications. Packaging and deployment of applications. Experience of Microsoft Exchange management & support from 2013 onwards. Experience of MS SQL Server and SQL Database Clustering. … 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 all More ❯

A brilliant opportunity for an Android Developer to join a highly product-focused team building one of the most visible and widely used mobile applications in the UK. This isn't a place where you're tweaking legacy apps or stuck doing maintenance. You'll be at … code, work with great people, and see your work ship fast - this could be the one. We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation, or age. More ❯

a new leadership team, and a sharp focus on modernisation and cloud innovation. Why this is different: This isn’t about ripping up legacy code and starting over. It’s about carefully modernising a well loved product used by 350+ customers across Europe and the UK. The business … Delphi expert to help lead that journey. What makes it interesting: You’ll be the hands on Delphi champion, with support from a legacy savvy internal team and the freedom to guide modernisation best practices. The role is product-led, customer focused, role and you'll have the … evolution. You’ll thrive here if you: -Live and breathe Delphi (newer versions/frameworks especially) -Have experience in cloud environments or transitioning legacy apps - Bonus: Java or C# knowledge for cross-functional input More info : -HQ in Guildford (1 day per fortnight minimum, ideally 2 per week More ❯