101 to 125 of 258 Legacy Systems Jobs in the UK excluding London

across complex and sensitive client environments. This is a hands-on internal testing role, not web application focused, where you'll be expected to work independently and navigate challenging systems with confidence. This role is suited to testers who thrive in technically demanding scenarios, want autonomy, and are motivated by work with real-world impact. Key Responsibilities Conduct internal … penetration testing Strong knowledge of Active Directory exploitation techniques (privilege escalation, lateral movement, etc.) Confident working in high-stakes, sensitive environments Strong command-line skills across Windows and Linux systems Ability to work through legacy systems, unpatched software, and environments with technical debt Desirable Skills Python scripting or automation experience Understanding of Operational Technology (OT) networks More ❯

the design, governance, and continuous improvement of our enterprise-grade data platforms. You’ll play a key role in enabling business success through modern, compliant, and well-architected data systems—aligned to frameworks such as TOGAF or Zachman. Key Responsibilities Design and implement hybrid data architectures (cloud and on-prem) to support business strategy. Lead data governance initiatives, including … metadata management, data quality, and policy enforcement. Identify and address areas of technical debt within data systems, driving long-term sustainability and agility. Collaborate with cross-functional teams to define and enforce architectural and data standards. Provide architectural oversight during project delivery and ensure compliance with regulatory frameworks. Translate business requirements into scalable, maintainable technical solutions. Stay abreast of … such as TOGAF or Zachman. Experience implementing data governance frameworks, including data stewardship and data cataloguing. A track record of identifying and removing technical debt from legacy systems and data environments. Background in regulated industries (e.g. financial services, energy, healthcare). Excellent communication skills and ability to engage with both technical and business stakeholders. If this sounds More ❯

Nottingham Are you ready to be part of something bigger than just "another dev job"? Fynity is exclusively recruiting for a leading SaaS company with a 35-year legacy in helping businesses turn raw data into clean, compliant documents. Now, they're reimagining their core platform, transforming it from a powerful legacy solution into a modular … by some of the world's top enterprises. Responsibilities include: Lead efforts to modernise a complex monolithic codebase into a scalable architecture. Get hands-on with legacy systems and greenfield development. Collaborate in agile sprints, taking ownership from planning to delivery. Mentor teammates, review code, and share knowledge across the team. The successful Senior Software Engineer will … years' experience in software development, ideally across multiple domains. Strong proficiency in C++ and desktop application development on Windows (Win32 experience is a plus). Experience modernising legacy platforms and working within a platform team structure. Bonus points for familiarity with Qt, C#/.NET, or front-end tech like React/TypeScript. In return you'll be More ❯

Compliance team, you will play an instrumental role in maintaining and enhancing our security controls across Microsoft Azure, Office 365, and during the migration of our legacy systems to the Microsoft cloud. Your responsibilities will include: Evaluate and enhance existing IT systems, management procedures, and security protocols to ensure robust protection. Oversee ISO 27001 and other More ❯

a talented Figaro Developer to join their Custody, Trading and Investments (CTI) product development team. This role plays a key part in enhancing the Figaro platform, supporting business-critical systems and delivering technical change that directly impacts operational excellence and client outcomes. The successful candidate will be responsible for configuring, developing, integrating and supporting the Figaro application. You will … that align with business objectives. You will also partner with product managers and users to design and implement enhancements, troubleshoot issues, and support ongoing migration from legacy systems to modern architectures. To be considered, you must have proven experience working with the Figaro platform in a financial services or wealth management environment. Excellent SQL skills are essential … Familiarity with See/Change source control, TDD and best-practice development methodologies is highly desirable. Just as important will be your ability to interpret business requirements, analyse complex systems, and communicate effectively with technical and non-technical stakeholders alike. This is an outstanding opportunity to join a collaborative and forward-thinking development team in a permanent position, with More ❯

with patience and enthusiasm. Strong interpersonal, organizational, and project management skills are essential. KEY RESPONSIBILITIES: •Travel with a team to install, upgrade, and convert data from legacy systems to our software. •Collaborate with dealership management to tailor software configurations to their business needs. •Deliver both group and individual training sessions for dealership personnel. •Prepare for future installations … offers significant interaction, responsibility, and the opportunity to develop project management skills. REQUIREMENTS: •University degree in any discipline, Accounting preferred, but not essential •Accounting knowledge or experience in accounting systems preferred, but not essential •Full driving license •Excellent presentation and communication skills are essential •Strong attention to detail •Problem solving and analytical skills •Ability to work in a team … a leader in high quality software solutions and IT services around the world and we are looking for a person with the potential to grow and continue our legacy of over 100 years of outstanding products and services at our Birmingham office. Any data you submit to Reynolds and Reynolds Ltd. will be handled in accordance with our More ❯

in Central London. This is a hybrid role, requiring 2-3 days per week in the office. This is a modern, digitally native business with no legacy systems - a rare opportunity to work in a clean, forward-thinking tech environment. You'll be joining a dynamic and fast-paced team that values innovation, adaptability, and continuous improvement. … GCP subject matter expert, with direct support from Google Contribute to the adoption of AI and emerging technologies post-migration Thrive in a fast-evolving environment with minimal legacy constraints Requirements : Proven experience as a Data Engineer. Hands-on experience with cloud migrations (on-prem to cloud or cloud-to-cloud). Strong knowledge of GCP, including BigQuery. More ❯

Database Developer/DBA - Liverpool - £50K – 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 in the professional services … technical challenges that'll keep you on your toes: Building and looking after solid database setups across Azure VMs and cloud platforms Getting stuck into MI and data warehouse systems with Azure Synapse Making sure everyone's following proper SQL practices and keeping source control tidy Working with teams right across the business to keep everything running smoothly in More ❯

programme covering a new ERP solution. The ideal candidate will be responsible for planning, coordinating, and executing the cutover activities to ensure a smooth transition from legacy systems to the new ERP system. The ideal candidate will have a strong background in IT project delivery, with specific experience managing end-to-end cutover processes across complex technology … Strong project management skills with the ability to handle multiple tasks simultaneously. Excellent communication and interpersonal skills. Ability to work under pressure and meet tight deadlines. Familiarity with ERP systems, specifically SAP and Microsoft Dynamics. Proficiency in project management tools (e.g. MS Project, Excel). Experience with stakeholder engagement at all levels Preferred Skills: Experience in change management and More ❯

programme covering a new ERP solution. The ideal candidate will be responsible for planning, coordinating, and executing the cutover activities to ensure a smooth transition from legacy systems to the new ERP system. The ideal candidate will have a strong background in IT project delivery, with specific experience managing end-to-end cutover processes across complex technology … Strong project management skills with the ability to handle multiple tasks simultaneously. Excellent communication and interpersonal skills. Ability to work under pressure and meet tight deadlines. Familiarity with ERP systems, specifically SAP and Microsoft Dynamics. Proficiency in project management tools (e.g. MS Project, Excel). Experience with stakeholder engagement at all levels Preferred Skills: Experience in change management and More ❯

programme covering a new ERP solution. The ideal candidate will be responsible for planning, coordinating, and executing the cutover activities to ensure a smooth transition from legacy systems to the new ERP system. The ideal candidate will have a strong background in IT project delivery, with specific experience managing end-to-end cutover processes across complex technology … Strong project management skills with the ability to handle multiple tasks simultaneously. Excellent communication and interpersonal skills. Ability to work under pressure and meet tight deadlines. Familiarity with ERP systems, specifically SAP and Microsoft Dynamics. Proficiency in project management tools (e.g. MS Project, Excel). Experience with stakeholder engagement at all levels Preferred Skills: Experience in change management and More ❯

programme covering a new ERP solution. The ideal candidate will be responsible for planning, coordinating, and executing the cutover activities to ensure a smooth transition from legacy systems to the new ERP system. The ideal candidate will have a strong background in IT project delivery, with specific experience managing end-to-end cutover processes across complex technology … Strong project management skills with the ability to handle multiple tasks simultaneously. Excellent communication and interpersonal skills. Ability to work under pressure and meet tight deadlines. Familiarity with ERP systems, specifically SAP and Microsoft Dynamics. Proficiency in project management tools (e.g. MS Project, Excel). Experience with stakeholder engagement at all levels Preferred Skills: Experience in change management and More ❯

programme covering a new ERP solution. The ideal candidate will be responsible for planning, coordinating, and executing the cutover activities to ensure a smooth transition from legacy systems to the new ERP system. The ideal candidate will have a strong background in IT project delivery, with specific experience managing end-to-end cutover processes across complex technology … Strong project management skills with the ability to handle multiple tasks simultaneously. Excellent communication and interpersonal skills. Ability to work under pressure and meet tight deadlines. Familiarity with ERP systems, specifically SAP and Microsoft Dynamics. Proficiency in project management tools (e.g. MS Project, Excel). Experience with stakeholder engagement at all levels Preferred Skills: Experience in change management and More ❯

where your work has real impact and your voice drives innovation? This is your chance to join a global, tech-forward organisation that’s transforming its legacy systems into a modern, service-oriented architecture. You’ll play a key role in that transformation, with the opportunity to grow your skills, contribute fresh ideas, and make a mark … Office integrations Confident with MS SQL Server and T-SQL Excellent communicator who thrives in a team setting Bonus: Experience working on high-availability , multi-user , n-tier distributed systems Hybrid Working Based in the West Midlands , with flexible hybrid working that balances collaboration and personal productivity. If you're ready to join a business where software is central More ❯

by mid-market and enterprise businesses to lead some of the most complex CRM and commercial change programmes in the UK. They specialise in replacing fragmented, legacy systems with scalable, integrated platforms that deliver operational clarity and real commercial outcomes. As they expand to support increasingly technical projects, they're now looking for a Solutions Architect to … lead the design and architecture of integrated systems across CRM and broader technology stacks. A GLIMPSE AT THE BENEFITS/CULTURE: Private medical plans and dedicated wellbeing services Hybrid working model (2 days in office) with flexible hours Class-leading parental benefits for maternity, paternity, and adoption Ongoing learning and development opportunities Inclusive and energised culture with regular socials … and annual away days SOLUTIONS ARCHITECT ROLE: As a Solutions Architect, you'll be responsible for shaping the technical architecture of client solutions post-sale, leading discovery sessions, mapping systems and data flows, and ensuring designs are scalable, robust, and aligned with commercial goals. You'll also contribute to pre-sales scoping for complex engagements, working closely with delivery More ❯

adapt to different projects and audiences with a flexible, change-positive mindset. The Role You'll join a major public sector transformation programme focused on modernising legacy systems and delivering large-scale data and cloud solutions. This role spans multiple workstreams and involves strategic business analysis, data migration, and system re-platforming. Key Responsibilities Lead business analysis More ❯

and senior stakeholders. Desirable: Microsoft certifications (e.g. Azure Solutions Architect Expert, DevOps Engineer Expert). Experience in enterprise-scale environments or regulated industries. Exposure to hybrid cloud models, legacy system integration, and cloud migrations. Familiarity with monitoring and observability tools such as Azure Monitor, Application Insights, or Log Analytics. More ❯

S/4HANA implementations-ensuring data integrity, quality, and readiness for go-live. You'll work across functional and technical teams to deliver seamless transitions from legacy systems to modern cloud-based environments, particularly in enterprise-scale settings. What You'll Be Doing Managing the data workstream on large SAP S/4HANA programmes Leading the design More ❯

mentor others, and help shape the future of the organisation's cloud strategy. Key Responsibilities Cloud Architecture & Delivery Lead the migration of workloads to Azure, including re-engineering legacy systems. Review and evolve existing Azure Landing Zones and blueprint designs. Collaborate with stakeholders to redesign workloads (e.g., SQL) for cloud-native performance. Stand up and manage resource groups More ❯

for an experienced Microsoft Business Centra Developer.You will be responsible for supporting the finance team and upskilling other developers within the organisation in this area. Integrating legacy systems with Business Central. Essential for the role Experience of Business Central is critical Experience of working in a finance function/systems Full development life cycle skills Strong More ❯

customers in the business, and check that the solutions built align with the as-is and to-be technical infrastructure.Business Tools Projects involve the delivery of various Telecom Operations Systems projects, including essential software upgrades on critical telecoms operational support systems (OSS) used for fault detection, investigation, and resolution by telecoms teams. These upgrades are essential because they … the as-is and to-be technical infrastructure.- Develop solution designs in line with the strategy, standards and definitions, allowing for the appropriate integration of enterprise interfaces, data and systems at a strategic level.- Set technical standards for development of the application solution.Engage colleagues in other areas of RSIT to verify that the proposed design fits in with existing … on similar role within last 5+ years Extensive experience of working as a Technical Architect in a corporate IS function Enterprise integration concepts and technologies (databases, legacy systems, standard protocols) Experience of delivering architecture components/compliance within an environment where systems and services are delivered via outsourced arrangements with key suppliers Middleware concepts and technologies 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 ❯

thrilled to be partnering with a global leader in the travel services and benefits sector. They're looking for a Senior HRIS Technical Analyst to join the Global Business Systems division. In this hands-on technical role, you'll serve as a trusted expert on HR systems and a critical support partner to the HR team, with a … system operations, enable greater automation, and play a pivotal role in advancing our HR technology landscape. Key Responsibilities: Act as the technical subject matter expert for Workday and HR systems Maintain and enhance system integrations using EIB, Workday Studio, Web Services (REST, SOAP), and related APIs Provide 2nd and 3rd line support, translating business needs into technical solutions Explore … transformation Proficiency in Excel and solid SQL/data reporting skills Knowledge of data privacy and compliance in HRIS environments Experience with Workday data conversion from legacy systems (desirable) If you're an experienced Senior HRIS Technical Analyst looking to drive innovation and mentor a high-performing team, apply today or send your CV to Please note More ❯

Software Engineer II - Payment Systems Location: 100% Remote (Ireland or UK) Salary: £/€ 60-70K We're partnering with a leading payments company to help grow their engineering team with a key hire - a Software Engineer II who can contribute to the design and build of modern backend services and customer-facing portals. This is a hands-on … focused on solving real-world challenges in the payments space. It's essential that you bring commercial experience in the payments domain, with a strong understanding of how payment systems operate - authorisation flows, settlement, compliance, and security are all part of your toolkit. What you'll be working on: Building and enhancing backend services and platform tooling used across … a global payment infrastructure Contributing to projects ranging from greenfield builds to modernising legacy systems Working with modern software techniques including BDD and CI/CD Collaborating with product and platform teams to solve real customer problems Supporting deployments across test and production environments What you'll bring: 3-5 years' experience in a software engineering role More ❯

team , directly shaping products used by thousands. Expect fast releases, ownership of features, and the chance to genuinely influence direction. Projects You'll Work On: Rebuilding legacy systems using Laravel & Vue.js Driving adoption of the full TALL stack (Tailwind, Alpine.js, Laravel, Livewire) Building new customer-facing tools, portals, and automation features Improving performance and scalability across high … traffic systems Supporting a long-term product roadmap across multiple business units The Stack: PHP (Laravel) Tailwind, Alpine.js, Livewire Vue 2 & 3 Agile/CI/TDD mindset The Setup: Hybrid - 3 days in-office for collaboration and 2 days from home (more flex offered) 3-stage interview process and super quick turnaround Competitive salary + bonus 25 days More ❯