401 to 425 of 566 Legacy Systems Jobs in the UK

or replacing/upgrading old legacy systems. Experience required: - Proven experience in delivering medium to high complexity IT projects across Legal Applications & Cloud Services in Practice Management Systems/Document Management Systems/Case Management systems - Been an IT Project Manager or a Senior Business Analyst in the past, for either a law firm or More ❯

with at least 3 to 5 years expertise of developing and supporting SQL and C#. Software Development: Analysis of issues pertaining to problems or errors raised by in-house systems, i.e. CORE, SharePoint interface, Equation end of day cycle. Understanding business requirements in order to develop and deliver appropriate solutions based on system definition documents. Proficiency in advanced 4GL … SQL environment in SSIS packages. Introduce new field and data types for new information to be collated in the CORE environment. To integrate with all the Bank’s sub-systems using data abstraction and connectivity layers, i.e. ODBC, ADO.net. Build reports based on business requirements using Hyperion Interactive Reports. Ensure that the environment is running optimally and to utilise … Forms with Equation system to introduce automation of processes thereby eliminating the need for duplicate entry. Utilise web services to integrate from cutting edge technology into legacy systems such as Equation. End of Day Cycle: Provide second and third level support for in-house programmes during the end of day cycle. Able to analyse and rectify any More ❯

for cost efficiencies. Job Description As the Group Head of IT , you will lead a small IT team and spearhead a digital transformation aimed at overhauling legacy systems, improving operational efficiency, and creating more streamlined ways of working. You will work closely with the Group Senior Leadership Team to craft and implement an IT strategy that modernises … High level understanding of all aspects of IT, covering infrastructure, security, business applications, ERP, data, digital, websites, and cloud-hosted solutions Experience with upgrading and managing legacy systems (e.g. IBM), and transitioning to modern solutions, including cloud-based technologies Experience of system integration and application management Excellent organisational and leadership skills Strong communication skills , with the ability More ❯

are looking for a C++ Quant Developer who is passionate about technology, interested in both low level details of how computer hardware operates and high-level design of large systems, as well as in data infrastructure. Someone who likes opening the hood to see how things work, has understanding of data structures, experience writing client-server network applications, and … developers and traders, including the founders. You will get a lot of independence and responsibility right away, and you'll learn at an unprecedented speed! No legacy systems, no multiple levels of approvals, no bureaucracy; all developers report directly to the CTO who is very hands-on. It is up to you to make an impact! You … implementation of pricing models. We will share more technical details in the interviews. You will have opportunity to improve your knowledge of software optimisations, of building robust large-scale systems and to understand cryptocurrency trading. Hard Skills requirements At least 2 years' experience with C++ - we will test Understanding networking and implementing client-server connections - we will test Experience More ❯

for application-related queries, triaging and resolving issues while working closely with departmental heads to improve user satisfaction and productivity. You will lead the migration from Legacy systems such as ShareFile to modern platforms like SharePoint, guiding users through significant change and embedding new ways of working. You will also support business transformation projects, manage supplier relationships … Applications Manager, you will: Manage and support the Microsoft technology stack, including SharePoint, Copilot, and other SaaS applications such as Adobe and SendGrid Lead migration from Legacy systems like ShareFile to modern platforms such as SharePoint Act as the primary internal contact for application-related queries, resolving issues efficiently Engage with heads of department to understand needs … should have experience with the following: Microsoft 365 suite, particularly SharePoint and Teams SaaS application management, including tools such as Adobe Creative Cloud and SendGrid Service desk and ticketing systems, preferably Freshdesk or similar Understanding of software development life cycles (SDLC) and supplier management Awareness of IT security principles and best practices Ability to promote and support adoption of More ❯

for application-related queries, triaging and resolving issues while working closely with departmental heads to improve user satisfaction and productivity. You will lead the migration from legacy systems such as ShareFile to modern platforms like SharePoint, guiding users through significant change and embedding new ways of working. You will also support business transformation projects, manage supplier relationships … Applications Manager, you will: Manage and support the Microsoft technology stack, including SharePoint, Copilot, and other SaaS applications such as Adobe and SendGrid Lead migration from legacy systems like ShareFile to modern platforms such as SharePoint Act as the primary internal contact for application-related queries, resolving issues efficiently Engage with heads of department to understand needs … should have experience with the following: Microsoft 365 suite, particularly SharePoint and Teams SaaS application management, including tools such as Adobe Creative Cloud and SendGrid Service desk and ticketing systems, preferably Freshdesk or similar Understanding of software development life cycles (SDLC) and supplier management Awareness of IT security principles and best practices Ability to promote and support adoption of More ❯

both on-premises and cloud. Use Terraform and AWS CDK to build and maintain infrastructure globally at scale. Leverage AWS best practice to build highly available and fault tolerant systems for our players. Support modernisation of legacy systems, migrating away from data centres to run on AWS. Provide operational insights by deploying, documenting, and maintaining logging … future issues. On-Call support to troubleshoot and resolve out-of-hour production issues. What you'll need: Experience working with (and willingness to work with) large-scale legacy systems. Proven AWS experience, part of a team running production system to at least tens of thousands of daily uniques. Experience with containerization and container orchestration. Familiarity with log More ❯

well-established business. This role focuses on delivering high-quality 1st, second and third-line support across the Finance modules of D365 F&O (and legacy AX systems), with occasional involvement in supply chain processes. Key Responsibilities: Provide expert-level support across core Finance modules (GL, AP, AR, Fixed Assets, Bank, and Budgeting) Analyse current ERP configurations More ❯

reality. We’re an early-stage fintech startup, backed by industry insiders, with deep experience in the financial ecosystem. We’re building from zero—no tech debt, no legacy systems. Just a clean slate, strong vision, and higher standards. Now we’re looking for a founding backend engineer to join us at the ground level and help bring … high-trust environment with real autonomy About You You work incredibly hard, really care about your work and take pride in what you do You ship clean code, scalable systems, and solving complex problems elegantly. You’re excited by ownership and unafraid of ambiguity. You move fast, but with precision. You use AI tools to design, code, debug, and … ship faster, not just as a nice-to-have but a MUST-have force multiplier What we're after: 3+ years experience building backend systems and APIs in C#/.NET Strong grasp of architecture patterns: DDD, CQRS, microservices Experience writing clean, testable code with a TDD mindset Experience working in small teams or startups, where autonomy and speed More ❯

reality. We’re an early-stage fintech startup, backed by industry insiders, with deep experience in the financial ecosystem. We’re building from zero—no tech debt, no legacy systems. Just a clean slate, strong vision, and higher standards. Now we’re looking for a founding backend engineer to join us at the ground level and help bring … high-trust environment with real autonomy About You You work incredibly hard, really care about your work and take pride in what you do You ship clean code, scalable systems, and solving complex problems elegantly. You’re excited by ownership and unafraid of ambiguity. You move fast, but with precision. You use AI tools to design, code, debug, and … ship faster, not just as a nice-to-have but a MUST-have force multiplier What we're after: 3+ years experience building backend systems and APIs in C#/.NET Strong grasp of architecture patterns: DDD, CQRS, microservices Experience writing clean, testable code with a TDD mindset Experience working in small teams or startups, where autonomy and speed More ❯

reality. We’re an early-stage fintech startup, backed by industry insiders, with deep experience in the financial ecosystem. We’re building from zero—no tech debt, no legacy systems. Just a clean slate, strong vision, and higher standards. Now we’re looking for a founding backend engineer to join us at the ground level and help bring … high-trust environment with real autonomy About You You work incredibly hard, really care about your work and take pride in what you do You ship clean code, scalable systems, and solving complex problems elegantly. You’re excited by ownership and unafraid of ambiguity. You move fast, but with precision. You use AI tools to design, code, debug, and … ship faster, not just as a nice-to-have but a MUST-have force multiplier What we're after: 3+ years experience building backend systems and APIs in C#/.NET Strong grasp of architecture patterns: DDD, CQRS, microservices Experience writing clean, testable code with a TDD mindset Experience working in small teams or startups, where autonomy and speed More ❯

Platform (Power Apps, Power Automate, Power Pages) and Dataverse. Dynamics 365 Support: Customize and integrate Dynamics 365 to meet business needs. System Maintenance: Maintain and update legacy systems to ensure smooth operation. Platform Administration: Assist with administration and upkeep of Power Platform, Dynamics 365, Fabric, and Dataverse environments. Technology Research: Investigate and recommend innovative technologies to improve More ❯

accessible as possible. Introduction: The University of Manchester is seeking an Identity Change Lead to join our Identity and Access Management (IDAM) Team. This pivotal role ensures that our systems reflect the diverse identities of our staff and students, supporting a person-centric approach across our digital ecosystem. In a university setting, true learning flourishes only when every individual … respect the dynamic, multifaceted nature of identity. Our role is to maintain a secure, responsive environment where people feel seen, respected, and empowered. We must ensure that our digital systems honour the dignity and authenticity of each member of our community. As Identity Change Lead you will directly support the well-being and agency of thousands of staff, students … dignity, privacy, and data protection (GDPR, Equality Act 2010, etc.). You will actively listen to and incorporate feedback from staff, students, researchers, and external partners to ensure our systems truly serve their needs, whether adjusting to life events, academic progress, or shifts in personal identity. Our Identity Change Lead will help develop clear, inclusive identity data models that More ❯

such as AI, cloud, and infrastructure Ability to work independently in a fast-paced, performance-driven team Why Thebes Technology? At Thebes, we help clients modernise legacy systems and future-proof their software using cutting-edge tools, including Generative AI along with tomorrow's technology. We work across industries like finance, government, logistics, and utilities, empowering organisations More ❯

As a Senior Solutions Architect, you'll take technical ownership of a critical business domain — Pensions, Protection, or Closed Book. You’ll guide the transition from legacy systems to a modern, cloud-native, microservices architecture, with a specific focus on solutions that serve the Pensions business unit. This role blends hands-on architecture with strategic leadership. You … suite stakeholders to shape scalable, secure, user-focused platforms. Key Responsibilities Own the solutions architecture for your domain (applications, cloud infrastructure, integration, and security) Guide the modernisation of legacy platforms into a decoupled, event-driven microservices estate Define and implement architecture patterns, development standards, and observability practices Act as the go-to technical authority for your business unit … from day one We’re looking for experienced Senior Architects with: Proven experience in solutions architecture with the Insurance Industry A strong track record of modernising legacy systems into scalable, microservices-based platforms Deep knowledge of design patterns, cloud-native practices, and architectural governance Excellent communication skills with both technical and non-technical stakeholders This is a More ❯

evolving the backbone of our platform. This is not a maintenance gig — it’s a high-impact, architecture-focused role where your decisions will shape the future of our systems and influence how businesses across the UK interact with their energy supply. Your day-to-day will include: Architecting and building reliable, scalable systems to support our software … We’re Looking For 💻 Deep expertise across the stack , especially in JavaScript/TypeScript, SQL databases, and AWS infrastructure. 🧱 Strong architectural instincts – you’ve designed and delivered robust, scalable systems before. 🔧 Hands-on refactoring experience – you're comfortable navigating legacy systems and improving them iteratively. 👥 Team-first mindset – you’re humble, collaborative, and put outcomes above More ❯

evolving the backbone of our platform. This is not a maintenance gig — it’s a high-impact, architecture-focused role where your decisions will shape the future of our systems and influence how businesses across the UK interact with their energy supply. Your day-to-day will include: Architecting and building reliable, scalable systems to support our software … We’re Looking For 💻 Deep expertise across the stack , especially in JavaScript/TypeScript, SQL databases, and AWS infrastructure. 🧱 Strong architectural instincts – you’ve designed and delivered robust, scalable systems before. 🔧 Hands-on refactoring experience – you're comfortable navigating legacy systems and improving them iteratively. 👥 Team-first mindset – you’re humble, collaborative, and put outcomes above More ❯

customise D365 Business Central solutions using AL and extensions Work directly with business users to gather requirements and deliver fit-for-purpose functionality Integrate Business Central with third-party systems and internal applications Support ongoing upgrades, maintenance, and performance optimisation Produce and maintain technical documentation in line with development standards Act as a subject matter expert on Business Central … working in an in-house or end-user environment is preferred Ability to manage projects independently and communicate effectively with non-technical stakeholders Familiarity with legacy NAV systems (C/AL) is advantageous Right to work in the UK and willingness to travel to site regularly This is a rare opportunity for a Business Central Developer to … move into an in-house role with long-term stability, real ownership, and the chance to directly influence systems that drive business success. Apply today to explore this exciting opportunity. More ❯

architecture and delivery across Salesforce Sales, Service, and Energy & Utilities Cloud. Design scalable OmniStudio components (OmniScripts, DataRaptors, Integration Procedures). Develop integration strategies with legacy and modern systems using event-driven patterns. Align Salesforce solutions with regulatory, commercial, and customer lifecycle requirements. Guide DevOps practices, including CI/CD and environment governance. Why This Role: Join a … company at the forefront of clean energy, with a mandate to build connected, intelligent platforms. Own architectural strategy and delivery for critical systems in a tech-enabled energy transformation. Be part of a forward-looking team that prioritises innovation, flexibility, and growth. If you're a Salesforce expert passionate about delivering high-impact architecture in the energy sector, this More ❯

architecture and delivery across Salesforce Sales, Service, and Energy & Utilities Cloud. Design scalable OmniStudio components (OmniScripts, DataRaptors, Integration Procedures). Develop integration strategies with legacy and modern systems using event-driven patterns. Align Salesforce solutions with regulatory, commercial, and customer lifecycle requirements. Guide DevOps practices, including CI/CD and environment governance. Why This Role: Join a … company at the forefront of clean energy, with a mandate to build connected, intelligent platforms. Own architectural strategy and delivery for critical systems in a tech-enabled energy transformation. Be part of a forward-looking team that prioritises innovation, flexibility, and growth. If you're a Salesforce expert passionate about delivering high-impact architecture in the energy sector, this More ❯

tech stack and deliver smarter digital solutions for their customers and community. What You’ll Be Working On: Greenfield and brownfield projects across customer portals, CRM platforms, and internal systems Building modern web applications using React, .NET APIs, and Azure Working alongside a strong team of developers Designing, developing, and supporting solutions to replace legacy systems More ❯

year transformation programme across core service areas including Adult Social Care , Children's Services , and Housing . This programme is data-led and insight-driven, aiming to modernise outdated systems, improve service delivery, and foster a culture of continuous improvement. We are seeking two experienced Data Analysts to support this work as part of a dynamic internal consultancy team. … within services, working hands-on with real data challenges to inform critical decisions and reform frontline delivery. KEY RESPONSIBILITIES Cleanse, validate, and restructure complex datasets from legacy systems (e.g. Liquid Logic, NEC, Jigsaw, Academy) Create clear, visual dashboards and performance reports using Power BI Collaborate across housing, social care and children's services to support redesign of … frontline services Link and reconcile data from disconnected systems to provide accurate, meaningful insights Coach non-technical staff to build internal understanding and capability in data usage Support service leaders in making informed decisions around resources, costs, and delivery models Essential Skills & Experience MUST have recent experience in Local Government or Council settings (Experience with public sector consultancies working More ❯

travel to meetings in other UK locations are also a possibility. This externally funded role is key to defining & delivering solutions to a number of strategic industry data projects & systems, and will be an important part of delivering digital & data solutions for the agricultural industry. We are looking for a skilled and experienced hands-on specialist who can work … just be helping our farmers produce the food we eat and look after our environment, youll be helping to shape the future of food production and leaving a legacy for the next generation. Responsibilities Be a key part of the technical delivery team, delivering a high profile AHDB & Industry data project Develop and execute a comprehensive federated IAM … ideally AWS and Azure Experience designing for Infrastructure as Code deployments Experience with API integrations & authentication Experience with PKI Experience with federated data architectures Experience with legacy systems integrations Experience with OpenID Connect, OAuth 2.0, Entra ID, Azure B2C, AAD, SAML Experience with multi-cloud approaches, especially where federated IAM is a requirement Strong communication & interpersonal skills More ❯

travel to meetings in other UK locations are also a possibility. This externally funded role is key to defining & delivering solutions to a number of strategic industry data projects & systems, and will be an important part of delivering digital & data solutions for the agricultural industry. We are looking for a skilled and experienced hands-on specialist who can work … just be helping our farmers produce the food we eat and look after our environment, youll be helping to shape the future of food production and leaving a legacy for the next generation. Responsibilities Be a key part of the technical delivery team, delivering a high profile AHDB & Industry data project Develop and execute a comprehensive federated IAM … ideally AWS and Azure Experience designing for Infrastructure as Code deployments Experience with API integrations & authentication Experience with PKI Experience with federated data architectures Experience with legacy systems integrations Experience with OpenID Connect, OAuth 2.0, Entra ID, Azure B2C, AAD, SAML Experience with multi-cloud approaches, especially where federated IAM is a requirement Strong communication & interpersonal skills More ❯

check you have the preferable soft skills before applying if required. This externally funded role is key to defining & delivering solutions to a number of strategic industry data projects & systems, and will be an important part of delivering digital & data solutions for the agricultural industry. We are looking for a skilled and experienced hands-on specialist who can work … just be helping our farmers produce the food we eat and look after our environment, youll be helping to shape the future of food production and leaving a legacy for the next generation. *Responsibilities * * Be a key part of the technical delivery team, delivering a high profile AHDB & Industry data project * Develop and execute a comprehensive federated IAM … ideally AWS and Azure * Experience designing for Infrastructure as Code deployments * Experience with API integrations & authentication * Experience with PKI * Experience with federated data architectures * Experience with legacy systems integrations * Experience with OpenID Connect, OAuth 2.0, Entra ID, Azure B2C, AAD, SAML * Experience with multi-cloud approaches, especially where federated IAM is a requirement * Strong communication & interpersonal skills More ❯