1 to 25 of 60 Permanent Legacy Systems Jobs in the North of England

currently undergoing a large-scale digital transformation. They are looking for a Full Stack Developer with strong Microsoft and Azure experience to help modernise and integrate legacy systems with cloud-native, scalable applications. This is a hands-on role with involvement across the full software development lifecycle. You'll work in a hybrid environment with a tech … skills with a focus on scalability and security Experience working in agile teams and collaborating with product/design stakeholders Nice to Have Experience with modernising legacy systems Microsoft Azure Developer Certification Familiarity with Durable Functions , Logic Apps, or messaging systems like Event Grid Perks & Benefits 25 days holiday + birthday off Hybrid working Professional development More ❯

join during phase 1 of a multi-year strategy to unify and modernise their data, cloud, and tech set-up, including the move from on-prem legacy systems to the cloud (which will most likely be Azure). Reporting into their new CIO/CTO, you'll play a pivotal role in shaping and executing their enterprise … Trent, in line with their highly collaborative and close-knit culture. What You'll Be Doing: Assessing the current data estate across on-prem, cloud, and legacy systems Designing and implementing a scalable, future-proof data architecture Leading the migration from legacy tools (e.g., SSIS, SSRS) to modern platforms like Azure Data Factory and Power More ❯

for continuous improvement and innovative solutions Work on both front-end and back-end development with a focus on C#, WPF, ASP.NET, and SQL Server Support legacy systems built with VB.NET and WinForms The Junior C# Developer will have the following skills: A solid understanding of C#and .Net Framework Knowledge or experience working with WPFand ASP.NET for … modern application development Experience or familiarity with SQL Server for database management Willingness to work with VB.NETand WinFormsin legacy systems Familiarity with HTML, CSS, and JavaScriptfor front-end development is a plus Self-sufficient, with the initiative to identify and solve problems independently Enthusiastic about developing high-quality and reliable software Ideal Candidate: You have a passion More ❯

Control Systems Engineer - WinCC | Warrington | £60,000 | UK Passport Required KO2's client, a specialist in advanced control systems and is seeking an experienced Control Systems Engineer with a deep understanding of WinCC, Siemens PLCs, and redundant server architecture. This is a full-time, permanent role based onsite in Warrington. Due to the nature of the work … candidates must hold a UK passport. The Role: The successful candidate will be involved in both the design and modification of complex control systems used in managing control systems that are used to control objects of high value. Key tasks include: Developing and modifying graphical interfaces for new and legacy systems using WinCC Pro Programming … SCADA systems to interface with databases for read/write operations Working with redundant WinCC servers and multiple operator stations across a high-density tag environment Integration and control of systems using Siemens S7, TIA Portal, and STL programming Interfacing with Plant Bus and Graphical Bus environments Onsite testing, with final FAT carried out by the client before More ❯

Commercial bank seeking to help Britain prosper and we're transforming our products and platforms with £3bn of investment to become the bank of the future. With 789 software systems and 26,000 servers we're servicing 80,000 colleagues, 30m+ customers, and over 14m+ online users you can be confident our IT professionals have sizeable and interesting challenges … every single day. In this role, you'll deliver highly complex technical support for systems and processes in mainframe environments, focusing on decommissioning and bug fixing. You'll help maintain and help migrate services according to Group standards and policies (and to agreed service levels) and will assist with the delivery of investment funded work within mainframe environments - this … includes out of hours. Additionally, you'll provide technical support (including incident and problem resolution for systems and processes in complex environments) - again this includes out of hours support. Key responsibilities Provide support for complex environments to tight timescales. Help drive the strategy and design across the mainframe development and test estate. Work closely with key stakeholders, drive and More ❯

Commercial bank seeking to help Britain prosper and we're transforming our products and platforms with £3bn of investment to become the bank of the future. With 789 software systems and 26,000 servers we're servicing 80,000 colleagues, 30m+ customers, and over 14m+ online users you can be confident our IT professionals have sizeable and interesting challenges … every single day. In this role, you'll deliver highly complex technical support for systems and processes in mainframe environments, focusing on decommissioning and bug fixing. You'll help maintain and help migrate services according to Group standards and policies (and to agreed service levels) and will assist with the delivery of investment funded work within mainframe environments - this … includes out of hours. Additionally, you'll provide technical support (including incident and problem resolution for systems and processes in complex environments) - again this includes out of hours support. Key responsibilities Provide support for complex environments to tight timescales. Help drive the strategy and design across the mainframe development and test estate. Work closely with key stakeholders, drive and More ❯

Senior Software Engineer to join one of their most forward-thinking teams. This role offers the chance to be part of something genuinely transformative: moving from legacy systems to a modern, cloud-native platform built with .NET 8, AWS, Docker, GraphQL and Terraform. The systems you'll help build are critical to the daily operations of … engineering, product and DevOps to shape solutions end to end. What Youll Be Doing Designing and building robust, scalable services in .NET 8 Helping drive the shift from monolithic systems to distributed, microservices-based architecture Writing clean, maintainable and well-tested code Actively contributing to code reviews, knowledge sharing and mentoring Working with a modern engineering toolset including AWS … DynamoDB, Aurora), Docker, Terraform Eventing & APIs: Kafka, GraphQL, REST CI/CD: GitHub Actions Data: PostgreSQL, DynamoDB, DocumentDB What We're Looking For Solid experience building modern, cloud-based systems using .NET and AWS Strong understanding of software design principles, clean code, and TDD Exposure to infrastructure-as-code and cloud automation (ideally Terraform) A collaborative mindset and the More ❯

currently undergoing a large-scale digital transformation. They are looking for a Full Stack Developer with strong Microsoft and Azure experience to help modernise and integrate legacy systems with cloud-native, scalable applications. What You'll Do Develop and maintain full-stack solutions using .NET Core , C# , and React/Angular/Blazor Build and optimise REST More ❯

currently undergoing a large-scale digital transformation. They are looking for a Full Stack Developer with strong Microsoft and Azure experience to help modernise and integrate legacy systems with cloud-native, scalable applications. What You'll Do Develop and maintain full-stack solutions using .NET Core , C# , and React/Angular/Blazor Build and optimise REST More ❯

and curation e.g. using Azure Synapse notebooks, Databricks, etc. Experience of data modelling to describe the data landscape, entities and relationships. Experience with data migration from legacy systems to the cloud. Experience with Infrastructure as Code (IaC) particularly with Terraform. Proficient in the development of Power BI dashboards. Strong focus on documentation and diagramming (e.g. ERDs). More ❯

office, flexible working hours The client are looking for an experienced .Net Developer to join the team and hit the ground running on the migration of legacy systems into the web, this is just 1 of a range of greenfield projects you will have to work on, their client base spans across multi-nationals and smaller UK … the .Net tech stack Solid experience with ASP.NET Core Must be comfortable working with REST API's Experience working with SQL/SQL Server Experience working with version control systems e.g Git Desirables Experience with JavaScript frameworks e.g ReactJS and AngularJS Experience with Winforms Working knowledge of NodeJS Azure DevOps What they're offering Salary More ❯

Opportunity This is not just another architecture role. This is a chance to make a tangible impact in a truly enterprise-scale environment , working with high-traffic applications, distributed systems, and cloud-first engineering teams . You will: Define and lead the AWS cloud strategy for large-scale SaaS platforms. Architect and implement cloud-native, event-driven, microservices-based … solutions . Drive modernisation initiatives , replacing legacy systems with state-of-the-art cloud solutions. Work closely with engineering teams, guiding them on best practices in .NET, AWS, and cloud security . Influence technical decision-making at the highest levels while remaining hands-on in proof-of-concept work. Collaborate with product, business, and technology leaders to … of CI/CD pipelines, DevOps, and Infrastructure as Code (Terraform, CloudFormation) . ? A collaborative, pragmatic approach , comfortable influencing both engineers and senior stakeholders. ? Experience in large-scale distributed systems and enterprise environments. Why Join? Exceptional package Up to £100K base + 15-30% bonus + up to £10K car allowance. True hybrid working Manchester or Leeds office (just More ❯

An innovative software company is looking for a gifted Software Developer to join their growing development team. As a Software Developer, you'll help develop, maintain, and support key systems and applications, with a focus on our services platform. You'll also play a role in onboarding new customers through system migrations. Working closely with the Managing Director and … wider team, you'll contribute to delivering reliable, customer-focused solutions. Your day-to-day will involve developing and maintaining both desktop and web-based systems using languages like C#, ASP, SQL, WPF, and WCF. You'll work with technologies such as SQL, LINQ, and WPF to build scalable solutions, support data migration from legacy systems More ❯

An innovative software company is looking for a gifted Software Developer to join their growing development team. As a Software Developer, you'll help develop, maintain, and support key systems and applications, with a focus on our services platform. You'll also play a role in onboarding new customers through system migrations. Working closely with the Managing Director and … wider team, you'll contribute to delivering reliable, customer-focused solutions. Your day-to-day will involve developing and maintaining both desktop and web-based systems using languages like C#, ASP, SQL, WPF, and WCF. You'll work with technologies such as SQL, LINQ, and WPF to build scalable solutions, support data migration from legacy systems More ❯

in a high-impact transformation initiative that will define their future. What's in it for you? Want to work on 100% greenfield projects with no legacy systems? You've got it. Interested in collaborating with a team that values modern coding practices, standards, and innovation ? This is the place. Looking for clear opportunities to lead projects More ❯

opportunity to step into a strategically critical role with a defined succession plan. The Opportunity A leading European manufacturer is seeking an experienced Applications Manager to oversee their enterprise systems landscape. You’ll be responsible for rationalising legacy systems, leading enhancements and support, and managing an Applications team of 8. This is a business-critical role … with influence across ERP, factory systems, and corporate applications. You’ll work closely with the current IT Director, who is planning retirement within 3–5 years. The right candidate will be in a strong position to step into that leadership role with full support and knowledge transition. What You’ll Be Doing Leading the application and integration portfolio across … multiple sites Managing and enhancing systems including ERP and shop-floor technologies Owning vendor relationships and third-party contracts Supporting CAPEX submissions and governance processes Leading a team of Business Analysts, SAP Consultants and Integration Support staff. Consolidating multiple ERP systems and instances to a more cost effective and simple model. Driving release planning, application roadmaps, and rationalisation More ❯

Senior Database Developer - Liverpool - £70K – Hybrid Fed up with legacy systems that make you want to pull your hair out? Want to work somewhere that actually values your expertise? Tired of boring database work? Ready to actually make a difference with your SQL skills? We're working with a long-standing client to find their next Senior … looking for someone who thrives on technical challenges and strategic thinking: Design and maintain robust database solutions across Azure VM and cloud environments Develop and support MI and DWH systems using Azure Synapse/Sharedo and related technologies Enforce best practices in SQL development and source control methodologies Ensure data security, access control, and maintain audit compliance standards Work … seamlessly across departments to deliver and support critical production systems Skills: Strong SQL Server Management Studio, SSIS, Azure Data Factory, and Visual Studio Solid hands-on experience with Data Warehousing, SSRS, Power BI Proven track record managing secure, high-performance database environments A genuine passion for continuous learning and staying ahead of industry innovation Experience with Azure Synapse/ More ❯

skills in a supportive environment. Their core platform is written in WinForms, and they're happy to consider developers from modern web backgrounds who are open to learning legacy technologies. You'll be supported by a collaborative team with strong focus on personal development, including access to Pluralsight and Udemy subscriptions. The role requires 3 days per week … work-life balance with hybrid flexibility. Technical Requirements: Commercial experience with C#, .NET, and SQL Server Proactive mindset and excellent communication skills Willingness to work with legacy systems alongside modern development Beneficial experience (training provided): Experience with WinForms Exposure to JavaScript frameworks This role offers excellent stability and growth potential within an established, profitable business where you More ❯

skills in a supportive environment. Their core platform is written in WinForms, and they're happy to consider developers from modern web backgrounds who are open to learning legacy technologies. You'll be supported by a collaborative team with strong focus on personal development, including access to Pluralsight and Udemy subscriptions. The role requires 3 days per week … work-life balance with hybrid flexibility. Technical Requirements: Commercial experience with C#, .NET, and SQL Server Proactive mindset and excellent communication skills Willingness to work with legacy systems alongside modern development Beneficial experience (training provided): Experience with WinForms Exposure to JavaScript frameworks This role offers excellent stability and growth potential within an established, profitable business where you More ❯

skills in a supportive environment. Their core platform is written in WinForms, and they're happy to consider developers from modern web backgrounds who are open to learning legacy technologies. You'll be supported by a collaborative team with strong focus on personal development, including access to Pluralsight and Udemy subscriptions. The role requires 3 days per week … work-life balance with hybrid flexibility. Technical Requirements: Commercial experience with C#, .NET, and SQL Server Proactive mindset and excellent communication skills Willingness to work with legacy systems alongside modern development Beneficial experience (training provided): Experience with WinForms Exposure to JavaScript frameworks This role offers excellent stability and growth potential within an established, profitable business where you More ❯

Gateshead Salary up to £100K DOE One of the UK’s top online competition platforms, who deliver high-engagement experiences through complex game logic, live draws, ticket caps, loyalty systems, and more. Now, they’re investing in a brand-new platform—rebuilt from the ground up to be faster, smarter, and more scalable. We’re looking for a Technical … Manage complex competition logic, live draws, ticket caps, and scheduling Optimise database performance and ensure secure, scalable infrastructure Support future features like new game types, loyalty modules, and affiliate systems Advise directors on technical strategy and best practices Skills: Expert-level PHP (Laravel preferred) Strong SQL/MySQL database design REST API design and secure integrations Experience with cron … lottery, or gaming platforms Redis or similar caching tools Docker/container-based development Advanced analytics or reporting pipelines Who You Are A technically strong developer who enjoys building systems from scratch Able to reverse-engineer and improve complex legacy systems A clear communicator who can work with both technical and non-technical teams Security- and More ❯

or call on 07880 358 148. Who We Are: We're a tight-knit development team focused on building and maintaining robust internal and client-facing software platforms. Our systems are designed for real-time access, ease of use, and user-driven decision-making, supported by web and mobile applications. We value independent thinking, clean code, and the continuous … as C#, ASP.Net Core, SQL and Blazor. You'll contribute to the development of new features, enhancements, and system fixes, while also helping to reverse engineer legacy systems to improve performance and maintainability. You'll work within a Kanban workflow and use Azure DevOps for source control and task management. The ideal candidate can work independently, write More ❯

impactful demos, discovery workshops, and strategic proposals Work closely with project and engagement managers to ensure alignment with technical requirements Conduct business analysis, run solution workshops, and configure Workday systems Collaborate with cross-functional teams to deliver measurable value to clients Mentor and support the development of junior team members About You Experienced in finance transformation, ERP, or Workday … with the ability to align technology with business goals Skilled in stakeholder management, including with executives and technical leads Strong understanding of integration architecture (APIs, middleware, legacy systems) Proven leadership of delivery teams, including offshore and cross-functional groups Comfortable presenting complex ideas to both technical and non-technical audiences Why Join? Hybrid working with flexibility across More ❯

DevOps, CI/CD, TDD/BDD, and cloud-native development practices. Technology & Operations Work closely with the Head of Architecture and Platform teams to modernise legacy systems and reduce technical debt. Promote scalability, resilience, and observability across our engineering landscape. Own SLAs, operational metrics, and runbooks for engineering-owned systems and services. Cross-functional Collaboration More ❯

days a year, they are embarking on a bold and strategic transformation of their IT estate. This includes a shift to a cloud-first strategy, modernising legacy systems, consolidating data centres, and enhancing disaster recovery, business continuity, and security capabilities. Their IT services are delivered through strategic vendor partnerships, and they are now seeking a Head of … transformation. You will provide expert technical leadership for complex initiatives such as data-centre migrations, cloud adoption (with a focus on Azure), and the rationalisation of suppliers and legacy systems. Working closely with a lean team of architects and specialists, and matrix-managing project and delivery teams, you will ensure that infrastructure and hosting services are secure, scalable … and strategic goals. Profile A successful Head of Infrastructure Strategy and Architecture should have: Proven experience delivering enterprise-scale infrastructure transformation in complex environments. Deep expertise in IT infrastructure, systems architecture, and cloud technologies (especially Azure). Strong commercial acumen, including CAPEX/OPEX management and vendor negotiations. Familiarity with agile delivery methodologies and modern IT operating models. A More ❯