1 to 25 of 43 Permanent Legacy Applications Jobs in the UK

intelligence with deep architectural expertise to tackle what has historically been too complex for human-led modernization. As a collaborative group of technology visionaries, we're not just transforming applications-we're reshaping entire business ecosystems while delivering measurable value that resonates from the C-suite to the cloud. Picture Yourself at Pega: You will be the architect of … AI transformation at an unprecedented scale. Your expertise will help distill complex application portfolios, taking multiple disparate legacy applications and consolidating them into modern, cloud-native solutions that unlock both operational efficiency and strategic agility. You'll analyze business processes from the top down while simultaneously examining underlying technology stacks from the bottom up. What You'll … deliver solutions that redefine what's possible in legacy transformation Architect cloud-native ecosystems that leverage generative AI capabilities to rapidly transform outdated systems, turning decades-old applications into modern, scalable solutions Develop comprehensive transformation roadmaps that align technical excellence with business objectives, ensuring every modernization effort delivers maximum ROI and strategic value Serve as a trusted More ❯

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 ❯

whilst also working with Product 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 a service driven architecture Working More ❯

of identifiable factors. Qualifications: Experienced professional using best practices and knowledge of internal or external business issues to improve products or services. Strong understanding of modernising legacy applications into modern applications via methodologies such as rehosting, re-platforming, serverless or container adoption. Recognised within Rackspace for their proven extensive technical knowledge within a specific domain (Application … concepts in own job family/job discipline. Specialised technical knowledge in the specialty domain with ability to quickly learn new concepts. Strong understanding of developing cloud native modern applications and software development practices Maintains an in-depth knowledge of one or more Cloud Hyperscaler (i.e. AWS, Azure, GCP) Builds and maintains strong knowledge of the entire Rackspace portfolio. … expertise that extends beyond the Rackspace portfolio. Knowledge modern software development practices with exposure to any language, Java, C#, Node.js, Scala, Python or GO preferred. Knowledge of building containerised applications and systems on modern container orchestration platforms. Knowledge of CI/CD pipelines with respect to serverless and container application preferred. Excellent attention to detail, communication skills (written and More ❯

BizTalk Configuration, Transformations and JSON based Messaging. • Experience on an recent BizTalk versions including 2013. • Strong knowledge of integration patterns specially 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 Schemas, Pipelines, Mapping, Orchestrations, Itineraries More ❯

Approach SQL Database Cloud-based infrastructure What You'll Do (Responsibilities) Participate in the entire application lifecycle, focusing on coding and debugging Write clean code to develop functional web applications Troubleshoot and debug applications Employ cutting-edge technologies to improve legacy applications Collaborate with Front-end developers to integrate user-facing elements with server-side … technologies Confident in the English language It'll be nice: (nice to have) Familiar with Domain-Driven Design approach Understanding of Azure services and deploying and debugging cloud-based applications Have a strong understanding of large-scale computing solutions. IMPORTANT NOTE: All the candidates must participate in the Persici Pre-Onboarding Course, and it's the only way to More ❯

team and help design the Identity and Access related solutions for multiple topics which are required to remediate audits, migrate to new Identity & Access solutions (Cloud), upgrade the legacy systems, migrate existing systems and perform further enhancement … of the legacy systems.The Access Lifecycle Solutions (ALS) team is part of the Identity & Access. The ALS architect team designs strategic solutions for various strategic and critical applications, which are managing the request, approval, provision, review, and revocation of access to IT assets across the organization.The solutions manage processes driven by Human Resources such as Joiners, Movers … effective controls and Information Security management objectives and implementation across the bank Managing client relationships and ensuring management focus on the Information Security agenda Migration of legacy applications to Cloud Experience with IAM (Identity and Access Management) Experience with security, especially related to IAM Driving technical clarifications, coordinate with stakeholders and facilitate meetings to come to resolution More ❯

a Data Engineer who would like to work with Microsoft Fabric supporting a companys digital transformation by building robust and scalable data infrastructure? Our client will move from legacy to Microsoft Fabric with OneLake, Azure Data Factory and Azure Data Lake and you can be a key part of this move. THE OPPORTUNITY In this role of Data … understand data requirements and define data needs. Identify the data then design and maintain data pipelines using Microsoft Fabric (OneLake etc) and Azure Data Factory that integrate to other applications including ERP. This data will be provided to a BI Analyst to create dashboards etc with Power BI. Integrate data from various applications such as ERP, IoT devices … and external sources Implement data validation, cleansing and quality assurance protocols Support existing Jitterbit ETL/legacy applications while Microsoft fabric is implemented Ensure the correct data enables the business to make better data led decisions Help transition from legacy ETL to Microsoft Fabric. Have the opportunity to change the data landscape and shape the More ❯

experienced Data Migrations Developer. In this exciting role, the initial focus will be working on a large project to migrate a global client base from multiple legacy applications into a single global Azure SaaS product. You will be expected to use your technical experience in designing a migration solution with the rest of the team which will More ❯

internal delivery teams to ensure our solutions meet the business requirements and are delivered to our clients principles, standards and best practices. ROLE RESPONSIBILITIES Migration of legacy applications to modern container-based microservice architectures Delivering to deadlines working in a Scrum methodology, using effective time management skills Use excellent communication and documentation skills, in a role which 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 ❯

role based in Newcastle upon Tyne) As an Engineering Manager within the Auction Delivery Team, you'll lead and support a high-performing group of engineers working across legacy and modern PHP-based systems. You'll shape technical direction, elevate engineering standards, and drive a phased migration to scalable, cloud-native solutions using AWS. This is a hands … Advanced knowledge of PHP (7.x/8.x), Laravel, and Composer. Strong hands-on experience with AWS (EC2, S3, Lambda, CodePipeline, IAM, etc.). Demonstrated experience modernising legacy applications and managing microservices. Agile leadership (Scrum/Kanban) with excellent collaboration and communication skills Stakeholder engagement and cross-functional project delivery Experience working with SaaS platforms or high-scale … applications is desirable Next steps We would love to hear from you if you are interested in this opportunity! Once you have clicked apply and submitted your application, if successful, a member of the Recruitment team will be in touch to chat more! We encourage people of all backgrounds, identities and abilities to apply. We are committed to creating More ❯

a growing business. Responsibilities include: Develop software to meet client needs using C#/.NET Write custom code and support clients Develop innovative technology and modernize legacy applications Follow best practice guidelines and contribute to improving them. Create documentation with client users in mind. Qualifications Current .NET/C# and ASP.NET development experience SC eligibility Experience working More ❯

Service Mesh; Identity & Device Management: Keycloak, Entra ID, JAMF, Okta Extensive experience designing, building, and maintaining Linux workloads across multiple environments on AWS Extensive experience automating legacy applications with scripting languages such as shell scripts and Python Experience with configuration management tools like Ansible Experience building, deploying, and securing containers across environments Experience working with databases such … until March 2026. Hybrid working with days on-site in London or Leeds. InterQuest Group is acting as an employment agency. We are an equal opportunities employer and welcome applications from all qualified persons. Please inform us if you require reasonable adjustments during the recruitment process. More ❯

future of their technology landscape. This is a great opportunity for someone who's passionate about technology and problem-solving someone who enjoys building new solutions and modernising legacy applications. You'll be joining a fast-moving, agile, and dynamic team focused on continuous improvement. This is not a people management position, but a position to lead technically. 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 ❯

You will collaborate closely with the wider Development team to discuss client requirements and drive continuous innovation in app functionality and design. Additionally, you'll work with existing web applications, adapting them for mobile platforms. Your expertise will influence application architecture decisions and the adoption of the newest mobile technologies. Throughout, you will ensure that both new and legacy applications meet quality standards and remain compliant with ISO 27001. Role requirements React Native C# .Net/JavaScript The Company The company is in the SaaS industry used by many clients with offices in the North and South area. Apply now! If you are a talented Mobile Application Developer looking to become part of a team focused 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 ❯

enhancing user experience and ensuring security and scalability. This role will also support the transition to a modern workplace environment, deploying VDI solutions, and managing the seamless deployment of applications to 'low-bandwidth' operational sites. Main responsibilities In this role you'll: Design and implement VDI solutions that meet business needs and enhance user experience. Manage and deploy applications … user experience with VDI by optimising performance and ensuring security and scalability. Monitor and manage VDI environments to ensure high uptime and reliability. Reduce reliance on legacy applications by supporting modern virtualization technologies. Collaborate with other IT teams and stakeholders to ensure alignment and support for VDI initiatives. To be successful in this role you'll need … accreditations/certifications such as ITIL, PMP, Prince2, TOGAF, PMBOK, Azure etc. An in-depth knowledge of VDI technologies and best practices. A detailed understanding and experience of deploying applications to production environments. A knowledge of security and compliance standards relevant to VDI. Language: English (Fluent). Desirable: Second European Language (preferred) Excellent written and verbal communication skills with 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 ❯

internal and external), load balancing (open source and cloud-native), and the secure integration of certificates and secrets management. Support engineering teams in refactoring and containerising legacy applications using standard microservices frameworks (e.g., Spring Boot, Quarkus) and Kubernetes standard methodologies. Provide guidance on container standards, CI/CD integration, and scalable deployment patterns to enable efficient modernisation 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 ❯