16 of 16 Legacy Applications Jobs in London

work within a high-performing, collaborative team that delivers critical solutions for the digital face of Disney Parks and Resorts. From contributing to the migration of legacy applications to .NET frameworks, to proactively improving the technology stack, your work will have a direct impact on the guest experience and Disney's global reach. What You Will Do … system issues using appropriate logging and diagnostic tools. Exploring and evaluating emerging technologies to keep our platform at the forefront of innovation. Supporting the transition from legacy applications to ASP.NET MVC 5 and .NET Core-based architectures. Identifying and implementing technical improvements to enhance performance, reliability, and scalability. Training & Professional Development At Disney, we place great emphasis … including query performance optimisation. Familiarity with CI/CD pipelines and build tools such as TeamCity, GitLab, Cake, or Octopus Deploy. Competent in debugging and resolving performance bottlenecks across applications and databases. Solid understanding of modern web technologies including HTML, JavaScript, and CSS. Ability to identify and implement areas for improvement across codebase and workflow. Methodical approach with the More ❯

the UK government. Accenture provides e2e Business Transformations, not just technical solutions to point business challenges. Help design and deliver ground-breaking cloud solutions - from migrating legacy applications onto Cloud, to building innovative, new cloud-native applications. Provide solutions to real world problems facing the UK government, working at the forefront of the most topical areas. Lead … clients in more than 120 countries, Accenture brings continuous innovation to help clients improve their performance and create lasting value across their enterprises. Visit us at Closing Date for Applications: 30/09/25 Accenture reserves the right to close the role prior to this date should a suitable applicant be found Locations London Manchester Additional Information Equal More ❯

evaluation of effort and carries out impact analysis of requested change, clearly identifying issues, risks, assumptions, and dependencies Examine the 'As Is' and 'To Be' states of products and applications to perform gap analysis Accountable to regularly analyse the functionality and performance of legacy applications and products in collaboration with business owners, product owners and technical … in supporting the discovery, design, build and delivery of business and technology solutions for projects Demonstrate 'system analysis' skills required to identify impacts of changes, including understanding of legacy back-end systems, APIs, database structures and system functional logic. Includes experience of liaising with developers, testers, designers, and architects to help shape solutions Ability to identify and manage More ❯

Commerce & Digital is a domain-driven microservice architecture hosted on an award winning digital platform, composable SaaS (for our non-differentiating needs) and a handful of legacy applications we are actively modernising, all integrated with each other and other areas of the business. These systems must be highly available, resilient, performant, secure, adaptable and scalable, enabling us … ways of working and team maturity to deliver optimal engineering capabilities. A key objective of the role is to revisit some of our first generation microservices and remaining legacy tech in this area, as well as to extend our digital tech into our stores. To do this you will collaborate closely with key stakeholders such as Product Leads … security and evolvability of complex systems. Experience of applying techniques from Lean and Systems Thinking. Desirable skills/experience you may have ECommerce or Retail experience Working with legacy systems Will have been a hands-on software engineer for part of their career. Engineering management role, working across multiple teams or architecture role working across a large part More ❯

maintaining the Java support library, integrating new libraries, customizing solutions, and building automation around processes. What You'll Need to Do: Design Java solutions for modernizing legacy applications Problem solving, including assisting others Write well-designed, testable code Deliver solutions within fast-paced project cycles Focus mainly on technical/coding activities, with occasional team coaching Development More ❯

vital to our business. Our systems are built on a domain-driven microservice architecture hosted on an award-winning digital platform, utilizing composable SaaS solutions and legacy applications that are actively being modernized. These systems must be highly available, resilient, performant, secure, adaptable, and scalable to meet customer needs and business agility. Learn more about being a … roadmap for John Lewis E-Commerce & Digital with business objectives. Influence operational decisions, team management practices, and engineering practices to ensure they support the broader Partnership strategy. Revisit legacy microservices and technology, extending digital tech into stores. Collaborate with stakeholders including Product Leads, Delivery and Operations Managers, Infrastructure Leads, and Architects, as well as other Principal Engineers and … Techniques to enhance system resilience, performance, security, and evolvability. Experience applying Lean and Systems Thinking techniques. Desirable skills/experience E-Commerce or Retail experience. Experience working with legacy systems. Hands-on software engineering background. Experience in engineering management or enterprise architecture roles. Next Steps Complete the application form with CV upload and questions. Refresh the page to More ❯

business productivity & efficiency.The technology currently supporting John Lewis shops and contact centres is a blend of commercially available third-party platforms, bespoke in-house systems, and legacy applications that we are actively modernising, all interconnected through complex integrations with each other and other areas of the business. Find out more about being a Software Engineer in the …/or scalability of systems. Experience of applying techniques from Lean and Systems Thinking. Desirable skills/experience you may have Retail or Contact Centre experience Working with legacy systems Will have been a hands-on software engineer for part of their career. Engineering management role, working across multiple teams or architecture role working across a large part More ❯

hands-on experience with the implementation with at least one of: Salesforce ClickSoftware Solutions Enterprise CRM, ERP and order management software such as, SAP, Oracle and legacy applications Strong desire to work both in design and in hands-on implementation modes in the delivery of solutions. Excellent written and verbal communication skills in English. Experience with Agile More ❯

across our omnichannel businessThe technology supporting John Lewis Commercial is a blend of commercially available third-party platforms, bespoke in-house systems, and tightly coupled mainframe legacy applications, all interconnected through integrations with other areas of the business. These systems must not only be highly resilient but also adaptable, enabling us to enhance operational efficiency and respond More ❯

John Lewis shops and contact centres deliver a market-leading omnichannel customer experience. The technology supporting them includes third-party platforms, bespoke in-house systems, and legacy applications, all interconnected and undergoing modernization. Learn more about being a Software Engineer in the Partnership and the technologies we use. At a glance Contract type: Permanent Salary … and integration patterns. Techniques to enhance system resilience and scalability. Experience applying Lean and Systems Thinking. Desirable skills/experience Retail or Contact Centre experience. Experience working with legacy systems. Hands-on software engineering experience. Engineering management or enterprise architecture experience. Next Steps Complete the application form with CV upload and questions, refreshing the page as needed. Successful More ❯

responsibilities: Solution & Architecture Design Define 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- architectures for scalability and resilience. Provide architectural guidance on security, compliance, and governance in cloud solutions. Collaborate with stakeholders … retrieval mechanisms across cloud-based 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. Define logical and conceptual application … to request an adjustment. We 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 30 days, then it should More ❯

Role : Enterprise Architect- Applications Job type : Permanent, full-time Salary : £115K Industry - Music – Music Rights Management, Copyright Location : London – Hybrid (2-3 days per week in office) Team : Enterprise Architecture Purpose : Our client is seeking an experienced Enterprise Architect focusing on Applications to develop the applications strategy, roadmaps, and architecture, playing a crucial role in delivering business … and technology strategies. Sitting within the Enterprise Architecture team, you will be responsible for translating the business strategy and business architecture into an applications strategy and roadmaps with supporting artefacts e.g. architectural landscapes, insights, principles and standards. You will collaborate closely with stakeholders, including the executive team (ELT), senior leadership team (SLT), other enterprise architects, business architects, analysts & product … knowledge of enterprise systems such as CRM, Finance, HR, and integration platforms. •Strategic leader with a strong track record of delivering practical, value-driven solutions. •Experienced in modernising legacy application estates using scalable methods (e.g., microservices for differentiating capabilities). •Skilled in applying pragmatic, right-sized governance and assurance to support delivery. •Strong negotiator and problem solver with More ❯

Role : Enterprise Architect- Applications Job type : Permanent, full-time Salary : £115K Industry - Music - Music Rights Management, Copyright Location : London - Hybrid (2-3 days per week in office) Team : Enterprise Architecture Purpose : Our client is seeking an experienced Enterprise Architect focusing on Applications to develop the applications strategy, roadmaps, and architecture, playing a crucial role in delivering business … and technology strategies. Sitting within the Enterprise Architecture team, you will be responsible for translating the business strategy and business architecture into an applications strategy and roadmaps with supporting artefacts e.g. architectural landscapes, insights, principles and standards. You will collaborate closely with stakeholders, including the executive team (ELT), senior leadership team (SLT), other enterprise architects, business architects, analysts & product … knowledge of enterprise systems such as CRM, Finance, HR, and integration platforms. •Strategic leader with a strong track record of delivering practical, value-driven solutions. •Experienced in modernising legacy application estates using scalable methods (e.g., microservices for differentiating capabilities). •Skilled in applying pragmatic, right-sized governance and assurance to support delivery. •Strong negotiator and problem solver with More ❯

e.g., Network Rail, Ministry of Justice) Develop and support ongoing operations using tools like MS Dynamics and Adobe Experience Manager for global clients Transform and manage legacy applications Requirements Who you are: Results-driven with a proven track record in business development Competitive and highly motivated Self-starter with excellent time management skills Strong listener and persistent More ❯

and this role is a key part of that journey as you will be leading a small team. The b2b API project is focused on containerising and modernising existing applications for Azure deployment. This is a mixture of technical improvement, new functionality and functionality rewrite to improve throughout of the APIour goal is to transition to a more scalable … cloud-native architecture while maintaining stability. As a Senior Developer, youll be working with .NET, Azure, and Kafka, ensuring that applications are optimised for cloud deployment and aligned with modern development practices. Youll assess the right .NET versioning strategy, manage dependency transitions (e.g., moving from MSMQ to Kafka), and ensure smooth migration of libraries and frameworks. Along with modernisation … features rollout in the existing system or new projects. What Youll Be Doing: Leading a team of 2-4 developers. Improving performance of API platform. 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 updates. Migrating message queuing systems More ❯

and this role is a key part of that journey as you will be leading a small team. The b2b API project is focused on containerising and modernising existing applications for Azure deployment. This is a mixture of technical improvement, new functionality and functionality rewrite to improve throughout of the API-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 ensure smooth migration of libraries and frameworks. … rollout in the existing system or new projects. What You'll Be Doing: Leading a team of 2-4 developers. Improving performance of API platform. 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 updates. Migrating message queuing systems More ❯