476 to 500 of 565 Legacy Systems Jobs in the UK

an experienced and creative Network Engineer to play a key role in supporting the IT infrastructure that underpins internationally recognised scientific research and teaching. You’ll join a skilled Systems and Networks team responsible for maintaining a complex server and network environment supporting over 6,000 users across a multi-site organisation. This is a rare opportunity to help … commercial IT environment. Key Responsibilities: Lead the design, installation and ongoing management of the organisation’s enterprise network infrastructure. Develop network management tools and help modernise legacy systems with an eye on security, scalability, and performance. Provide advanced administration across network and associated infrastructure, including VMware, firewalls, LAN/WAN, data centres, and monitoring platforms. Manage and … contribute to strategic IT transformation projects including network refreshes, systems integration, and onboarding of new departments. Provide technical leadership and third-line support for critical services. About You: We’re looking for someone with: Strong hands-on experience with Cisco and Fortinet (or similar) technologies. Deep technical knowledge of enterprise networking (switches, firewalls, routing, cabling). A practical understanding More ❯

solutions is seeking an experienced Network Consultant to drive the design, implementation, and deployment of a next-generation network migration project. This role focuses on transitioning from a legacy network to a modern, high-performance infrastructure utilizing Cisco Nexus, Catalyst, SDN/ACI, and VxLAN with Spine & Leaf Topology. The ideal candidate will bring deep expertise in enterprise … free to reach out and apply today! Key Responsibilities: Network Design & Implementation - Architect and deploy scalable, high-performance network solutions. Deployment & Migration - Oversee the transition from legacy systems to a next-generation environment. Cisco Technologies - Work extensively with Cisco Nexus, Catalyst, and SDN/ACI. VxLAN & Spine-Leaf Topology - Implement advanced network fabric for improved performance and More ❯

and play a foundational role in shaping its future. Why This Role Stands Out Greenfield Build: you will work on a completely new product with no legacy systems, just the freedom to innovate. High Impact: As the first engineer in the UK, you will influence architecture, product direction, and engineering culture. Hybrid Flexibility: The role is based … or Scala is highly desirable. A proactive, hands-on engineer who can lead by example and help scale the team and technology. Key Responsibilities Design and build scalable, secure systems from the ground up. Collaborate with cross-functional teams to bring innovative ideas to life. Establish engineering best practices and contribute to a strong technical culture. Mentor future hires More ❯

UK telecoms provider. This role will lead on the delivery of fibre clearance and site rationalisation across a large portfolio of active network locations, supporting the decommissioning of legacy infrastructure. Fibre Delivery Manager Responsibilities: Deliver end-to-end fibre and network clearance activity across multiple sites Coordinate field partners for civils, cabling, splicing, audits and outages Review HLDs … escalate risks such as GIS mismatches, deployment delays or access issues Engage key stakeholders across planning, build, and programme delivery teams Support tooling transition away from legacy systems and contribute to reporting governance Ensure GIS and network inventories are updated following fieldwork Fibre Delivery Manager Requirements: Current SC clearance is essential Strong background in fibre network delivery More ❯

UK telecoms provider. This role will lead on the delivery of fibre clearance and site rationalisation across a large portfolio of active network locations, supporting the decommissioning of legacy infrastructure. Fibre Delivery Manager Responsibilities: Deliver end-to-end fibre and network clearance activity across multiple sites Coordinate field partners for civils, cabling, splicing, audits and outages Review HLDs … escalate risks such as GIS mismatches, deployment delays or access issues Engage key stakeholders across planning, build, and programme delivery teams Support tooling transition away from legacy systems and contribute to reporting governance Ensure GIS and network inventories are updated following fieldwork Fibre Delivery Manager Requirements: Current SC clearance is essential Strong background in fibre network delivery More ❯

and public sector organisations. We're currently building a next-gen SaaS platform (20+ microservices) and launching a new customer portal - all while maintaining and evolving legacy systems and core offerings. With 14 engineers spread across multiple sub-teams (FE, BE, SaaS, QA, DevOps, and more), the pace is high and the opportunities to lead are real. …/Kanban) Comfortable overseeing cross-functional teams (FE, BE, QA, DevOps, UX) Empathetic leadership style with a focus on team development and delivery Bonus: experience in infrastructure, networking, or systems-focused domains Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy. More ❯

and public sector organisations. We're currently building a next-gen SaaS platform (20+ microservices) and launching a new customer portal - all while maintaining and evolving legacy systems and core offerings. With 14 engineers spread across multiple sub-teams (FE, BE, SaaS, QA, DevOps, and more), the pace is high and the opportunities to lead are real. …/Kanban) Comfortable overseeing cross-functional teams (FE, BE, QA, DevOps, UX) Empathetic leadership style with a focus on team development and delivery Bonus: experience in infrastructure, networking, or systems-focused domains Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy. More ❯

and public sector organisations. We're currently building a next-gen SaaS platform (20+ microservices) and launching a new customer portal - all while maintaining and evolving legacy systems and core offerings. With 14 engineers spread across multiple sub-teams (FE, BE, SaaS, QA, DevOps, and more), the pace is high and the opportunities to lead are real. …/Kanban) Comfortable overseeing cross-functional teams (FE, BE, QA, DevOps, UX) Empathetic leadership style with a focus on team development and delivery Bonus: experience in infrastructure, networking, or systems-focused domains Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy. More ❯

overall detection and response capability. It's a unique chance to join early and shape how threat hunting is done in a large organisation with no legacy systems in place!! We're looking for experience in: Threat hunting and incident response in complex environments Tracking and analysing TTPs using frameworks like MITRE ATT&CK Creating intelligence-led More ❯

helps clients continuously deliver value through quality software practices and expertise. We work for leading organizations like Tesco, ASOS, Santander, and The Salvation Army to modernise legacy systems, build new features and products, and adopt new technologies that enhance their software and development processes. We are looking for a strategic, consultative sales leader who thrives in a … product managers. We deliver high-quality software engineering, platform solutions, and technical consulting. Our work ranges from short discovery workshops to long-term projects like modernizing legacy systems, building new features, and creating full products. Projects can last anywhere from a few weeks to several years. You will work closely with our Sales Development Representative, and Campaign More ❯

best engineering principles (SOLID), writing clean code and participating in code reviews. You'll be joining a team of 4 engineers and you'll be modernizing legacy systems into new Microservices based architecture. This role is hybrid working so you must live commutable to Epsom - 3 days onsite (Mon, Tues, Thu) and WFH (Wed & Fri). No More ❯

knowledge of MySQL/MariaDB Experience with a11y and WCAG Experience with HTML, CSS (particularly Bootstrap) and JS/jQuery Flexibility to work with legacy content management systems with a view to providing support to clients on an ongoing basis Working knowledge of version control systems like Git Good working knowledge of DNS, and an ability More ❯

modernisation program. You’ll lead the management and evolution of test environments, ensuring they are reliable, scalable, and aligned with strategic goals. The role spans both legacy systems and new services, requiring a blend of technical expertise, environment oversight, and collaboration across teams. Key Responsibilities: Strategy & Planning : Help define and implement a test environment strategy aligned with More ❯

modernisation program. You’ll lead the management and evolution of test environments, ensuring they are reliable, scalable, and aligned with strategic goals. The role spans both legacy systems and new services, requiring a blend of technical expertise, environment oversight, and collaboration across teams. Key Responsibilities: Strategy & Planning : Help define and implement a test environment strategy aligned with More ❯

days on site Company: We are partnered with a client in the Home Counties undergoing a major Digital Transformation programme. This initiative will modernise their legacy systems and transform both their IT infrastructure and operational processes. With a strong emphasis on automation, enhanced data utilisation and streamlined workflows this transformation provides a unique opportunity to shape the More ❯

days on site Company: We are partnered with a client in the Home Counties undergoing a major Digital Transformation programme. This initiative will modernise their legacy systems and transform both their IT infrastructure and operational processes. With a strong emphasis on automation, enhanced data utilisation and streamlined workflows this transformation provides a unique opportunity to shape the More ❯

ll lead a high-performing team delivering cloud-first UC and Contact Centre solutions—working directly with both public and private sector enterprise clients to modernise legacy systems and design future-ready architectures. If you’re a Cisco Collaboration specialist with leadership experience—and want to shape services that genuinely improve outcomes in complex industries —this could More ❯

ll lead a high-performing team delivering cloud-first UC and Contact Centre solutions—working directly with both public and private sector enterprise clients to modernise legacy systems and design future-ready architectures. If you’re a Cisco Collaboration specialist with leadership experience—and want to shape services that genuinely improve outcomes in complex industries —this could More ❯

days on site) Highlights of the role: A key aspect of the role involves modernising the company's reporting and data infrastructure; moving from an on-premises legacy system to a new cloud-based stack using Google BigQuery and Looker. This provides an opportunity to work with newer, cutting-edge BI technologies. There is a lot of flexibility More ❯

ll lead a high-performing team delivering cloud-first UC and Contact Centre solutions—working directly with both public and private sector enterprise clients to modernise legacy systems and design future-ready architectures. If you’re a Cisco Collaboration specialist with leadership experience—and want to shape services that genuinely improve outcomes in complex industries —this could More ❯

Infrastructure Management - Design and implement Enterprise level network solutions Regional Support - Provide expert guidance to engineering teams across multiple international regions Network Migration - Drive projects from legacy systems to modern network architecture Security Implementation - Ensure robust and secure connectivity for critical healthcare applications Technical Leadership - Evaluate and recommend infrastructure improvements to support business goals What You'll More ❯

Our client is a fast-growing fintech company revolutionising the banking sector with cutting-edge payments technology. They are on a mission to modernise legacy systems and enable the rapid deployment of innovative financial products and are seeking an experience Strategy Consultant to lead a high-impact revamp of client-facing materials. Working with the Director of More ❯

Greenfield project : No legacy systems or tech debt. Direct Impact : As you work on the mission-critical flagship product, your contribution will shape the company's future. Opportunity for growth: Join early and grow as the team expands. Unique start-up culture while being part of a well-established and reputable group. Embrace AI: We are strong More ❯

including the founders/management team. You will get a lot of independence and responsibility right away, and you'll learn at an unprecedented speed! No legacy systems, no corporate bureaucracy, it is up to you to make an impact. Responsibilities: Design and implement predictive quantitative trading market making as well as taking models. Apply statistical techniques … market making, including signal design and HFT/MFT strategy Quant Research Track Experience in developing machine learning algorithms, building automated pipelines for recalibration and testing, implementing version control systems, and visualizing the training process. Nice to have requirements: Experience in market making, including signal design and HFT strategy development. We are also open to candidates with experience in More ❯

results-driven Technical Delivery Manager adept in working in fast-paced environments and driving accountability. You will tactically manage and own multiple ICT projects (e.g., data centre exits, legacy system decommissioning) from initiation to closure, ensuring technical teams deliver functional requirements on time. Key Responsibilities Own end-to-end delivery of concurrent technical projects, ensuring tasks are clearly More ❯