51 to 67 of 67 Legacy Systems Jobs in Central London

Triggers Hybrid London 1-2 days a week £(Apply online only) (Outside IR35) The reason they're hiring now, they have a client that is all on a legacy system, on-prem platform, and they want to build out their AWS platform. They want to do a High-level architecture design to take to the low-level design. More ❯

Using GCP), defining data strategy and architecture from the ground up. This is more than just governance — it’s a chance to solve big problems, modernise legacy systems, and create reusable, scalable data products that unlock business value. Key Responsibilities: Shaping data strategy and architecture roadmap Designing scalable models and integration patterns Leading on cloud data tech More ❯

will take full ownership of a large-scale Windows Server migration programme. The scope includes upgrading servers currently running Windows Servers, and addressing a small number of additional legacy systems. This role requires a proven subject matter expert in Windows Server migrations who is comfortable operating across multiple environments that include a complex mix of both legacy More ❯

Systems Trainer – Student Systems Implementation Fixed-Term until October 2026 | £36k - £42k | Hybrid – London 1-2 day/week Are you experienced in delivering high-quality systems training and end-user support within large, complex environments? Are you excited by the idea of playing a key role in the successful rollout of a major student systems implementation? We’re looking for a confident and proactive Systems Trainer/Lead to join a major transformation programme at a forward-thinking university who are undergoing a massive transformation project. Role: Systems Training Lead Employment Type : FTC until October 2026 initially Location : London 1-2 days a week onsite but this is not regular Salary … embedding new digital capabilities across the student lifecycle. What You'll Be Doing Working closely with SMEs in designing and delivering engaging training sessions and materials for new student systems as per releases (Release one is Admissions) Providing first-line support and expert advice to system users across multiple departments Advising on best practice use of the system to More ❯

these into NetSuite’s functionality Designing and configuring NetSuite system to meet the client’s business needs across Finance, E-commerce, Procurement etc. Migrating data from legacy systems to NetSuite Providing systems support, carrying out troubleshooting and diagnosis of software issues Providing systems training to end-users Keeping up-to-date with NetSuite’s latest More ❯

entering a pivotal phase of its technology evolution. With operations across multiple international offices and a 20+ year history of growth, the company is transitioning from legacy systems to a modern, data-centric infrastructure inspired by top-tier professional services models. A newly organized, high-integrity data environment is now in place, laying the foundation for building … team performance. Productization & Process Optimization: Transform KPIs into user-centric tools and dashboards that influence consumer behavior, focusing on both speed and delivery quality. Tool Integration: Act as a systems integrator—identify, vet, and scale best-in-class third-party tools to streamline workflows and ensure adoption across a 1,500+ user base. Team Leadership: Rebuild and lead a … user services organization. Demonstrable track record of translating business strategy into rapid, measurable commercial outcomes through technology. Strong expertise in data engineering, data science principles, BI, product management, and systems integration. Experience productizing KPIs and driving user adoption of technology tools across a large, distributed sales-oriented workforce. Hands-on leader, capable of being "in with the troops" and 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 ❯

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 ❯

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 ❯

of penetration testing experience (infrastructure/internal focus) Strong hands-on expertise with Active Directory attacks, lateral movement, and privilege escalation Experience navigating live and legacy production systems Comfortable in Windows and Linux command-line environments Desirable: Python scripting or automation experience Familiarity with OT (Operational Technology) networks Experience with tools like CrackMapExec, BloodHound, PowerView, etc. Certifications More ❯

Strategic AEs already earning £1.5M+ annually. Greenfield opportunity - Own and expand into some of the world’s largest enterprises in EMEA. Category-defining tech - Replacing legacy procurement systems with a sleek, AI-first platform. Elite leadership - Proven SaaS operators, top-tier VC backing, and a strong sales playbook. The Role As a Strategic Enterprise Account Executive , you More ❯

issues with various teams (Models Analytics, tech teams, ePricing etc) Check trade and cash data and make sure they are handled properly. Compare Risk and PV vs Existing legacy system. Host weekly working group with G10 traders Document all differences, gather sign offs KEY Relationships: FM users: Front Office, Market Risk, Finance, Middle Office, Operations Technology: Development leads More ❯

responsibilities include: Leading the commercial relationship with one of the business’s most important outsourced IT service providers Managing contract performance, value delivery, and governance across legacy systems and service infrastructure Partnering with senior internal stakeholders in IT, procurement, and operations Supporting the transition to an integrated commercial and SRM (Supplier Relationship Management) model Acting as the … Required Skills: Strong commercial acumen with end-to-end category ownership experience Deep expertise in Tech Services procurement , particularly infrastructure, cloud, SaaS, data, and/or legacy systems Proven ability to manage high-value, complex outsourced service providers Strong supplier relationship and performance management capability Strategic sourcing experience with a pragmatic, delivery-focused mindset Excellent stakeholder engagement More ❯

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 ❯

influence architecture, ship fast, and see your impact daily Work alongside brilliant engineers who value clarity, curiosity, and ambition A clean slate to build from no legacy systems, just smart tools and real users In-person, 5 days a week in Central London with a close-knit, collaborative team Stack: Python, React, Next.js, TypeScript, FastAPI, Postgres We More ❯

skilled Network Engineer with Nokia IP/MPLS expertise to play a key role in a multi-year digital transformation initiative. This is a high-impact project replacing legacy SDH infrastructure with a modern Nokia 7750 MPLS Core , underpinning critical connectivity across the rail network. The Opportunity Join a long-term (3-year) infrastructure rollout program within one … mission-critical transport infrastructure Take ownership of design, implementation, and configuration of Nokia-based solutions Collaborate with project and field teams to ensure seamless transition from legacy systems What You'll Do Lead the design and configuration of a Nokia 7750 MPLS core network Replace legacy SDH infrastructure with high-performance IP-based systems … reliable, real-time connectivity Carry out hands-on configuration, documentation, testing, and deployment Travel to East London sites to support implementation and troubleshooting Ensure uptime and redundancy for key systems operating in a safety-critical environment Key Skills Required Proven experience with Nokia IP/MPLS platforms (especially 7750 Service Routers) Strong understanding of network protocols (OSPF, BGP, MPLS More ❯