20 of 20 Part-Time Infrastructure Engineer Jobs in the City of London

Systems Administrator/Infrastructure Engineer – City of London – Windows, Server, Exchange, Scripting, VMware - £75,000 - £80,000 12 month FTC A well renowned Hedge Fund based in the City of London is currently looking to hire a talented Systems Administrator/Infrastructure Engineer (Windows, Server, Exchange … established role. The ideal candidate for this role will have a self-starter attitude and have great troubleshooting skills. In this Systems Administrator/Infrastructure Engineer (Windows, Server, Exchange, Scripting, VMware) role you will be responsible for providing a high performance, scalable infrastructure to an agile organisation. … will include: 3rd line support of MS and VMware technologies and administration of HPE server estate. To be considered for the Systems Administrator/Infrastructure Engineer role you will require the following skill-set: Windows Server Exchange VMware Powershell This is a fantastic opportunity to work for a More ❯

Job Title: Head of/Lead Infrastructure Engineer Location: London, UK Salary: £90k-£110k About the Role: We are seeking a highly skilled Head of/Lead Infrastructure Engineer to join our dynamic team. This role is ideal for a proactive professional with extensive experience in … and virtual server environments, ensuring the resilience and reliability of critical systems. You will work in a collaborative environment, supporting business operations through exceptional infrastructure management. Key Skills: Leading on big projects Being in a Lead/Manager/Head of role for 5+ years Hands-on technical experience … with SQL Server, Exchange, Azure, Linux, Windows etc. MS MVP (ideally) Key Responsibilities: Lead, manage, and develop the infrastructure team, providing technical mentorship and leadership across all infrastructure functions. Own and drive the overall infrastructure strategy, roadmap, and associated technology decisions to align with business objectives. Act More ❯

Infrastructure Engineer – London, UK GFO-X is seeking an Infrastructure Engineer to join our growing team in London, UK. GFO-X is the UK's first regulated and centrally cleared trading venue dedicated to digital asset derivatives. The successful candidate will join the Infrastructure team … report to the Head of Infrastructure, work with developers and project stakeholders, and build the infrastructure for an institutional grade fully UK-regulated trading venue for digital asset futures and options. Role: Deployment and configuration of exchange infrastructure, including network and server hardware, Linux OS, database and … Experience with configuring Zabbix or similar monitoring platforms Experience with IPA or similar identity management platforms, including practical LDAP skills Intermediate understanding of networking infrastructure and in particular, multicast and high throughput, low jitter networks Hands-on experience with identifying and mitigating platform security issues and threats Very strong More ❯

IT Systems & Infrastructure Engineer Location: London Borough of Brent | Hybrid | 3 days in-office Job Type: Permanent | Full-Time (35 hours per week) Salary: Up to £53,000 per annum + bonus + excellent benefits An exciting opportunity has arisen for an IT Systems & Infrastructure Engineer to play a key role in maintaining and enhancing IT operations. This position involves ensuring the reliability, security, and efficiency of infrastructure, providing hands-on support, and driving improvements across network and system performance. The role also includes overseeing an IT support team member, offering guidance and mentorship … to ensure the smooth delivery of IT services across the organisation. Key Responsibilities: Maintain and improve IT infrastructure, including servers, networking hardware, and cloud platforms, to ensure seamless operations. Oversee security measures, implementing firewalls, antivirus protection, and encryption protocols to maintain compliance and safeguard systems. Diagnose and resolve technical More ❯

Network Infrastructure Engineer Location : Central London Hybrid : 2 days per week on-site Salary : Up to £75,000 We are seeking a Network Infrastructure Engineer to join our client. This role focuses on Meraki Enterprise, Palo Alto Firewalls, and a mix of physical and cloud environments … drive innovation, enhance network security, and automate processes, all while contributing to professional growth and organisational transformation. Key Responsibilities: Design, implement, and maintain network infrastructure across multiple locations and cloud platforms (Azure) Manage Meraki Networks, Palo Alto Firewalls Implement network security measures, including ACLs, DDoS protection, and firewalls Automate … for internal and external projects Skills & Experience: Experience with Meraki, Palo Alto Firewalls, and cloud platforms (Azure, AWS, GCP) Strong skills in Azure, and Infrastructure as Code (IaC) tools like Terraform Expertise in TCP/IP, subnetting, and modern network technologies Experience configuring and supporting WAN technologies including BGP More ❯

Senior Infrastructure Engineer – Up to £750 per day Inside IR35 Our client, a boutique asset manager, is seeking a Senior Infrastructure Engineer to join their team on an initial 6-month contract. This individual will play a key role in owning, managing, and resolving 3rd line More ❯

where every team member is valued, respected, and empowered to contribute their unique skills and talents. The Impact You'll Make As our Lead Infrastructure Engineer, you'll play a vital role in ensuring the robustness, security, and scalability of our IT infrastructure. Your work will empower teams … improvement-you'll also help others succeed and grow. Why Join Us? Architect for the Future: Lead the design and implementation of secure, scalable infrastructure solutions across cloud and on-premise environments Drive Strategy: Collaborate closely with senior IT leaders to shape infrastructure roadmaps and influence technological direction … networks, servers, and platforms (e.g., Microsoft Azure, Entra, 365, Cisco Meraki) are reliable, secure, and high performing Lead and Inspire: Manage and mentor our Infrastructure Engineer, setting clear goals and encouraging professional development Deliver Change: Own key infrastructure projects, such as cloud migrations, integration projects and systems More ❯

Infrastructure Engineer – Central London £50,000 - £60,000 pa + Benefits Hybrid: 3 days in the office per week with 2 days from home. 12 month FTC JNC are working with a leading law firm in Central London that are looking to bring on a Infrastructure Engineer More ❯

in a dynamic, high-energy environment. Join our team and help shape the future of AI . Location and Legalities This full-time Cloud Infrastructure Engineer position is based onsite in our brand-new Ultralytics office in London, UK. Applicants must have legal authorization to work in the … UK, as Ultralytics does not provide visa sponsorship. What You'll Do As a Cloud Infrastructure Engineer at Ultralytics, you will design, build, and maintain the scalable and robust cloud infrastructure that powers our entire suite of AI services, including the Ultralytics HUB . You'll be … AI models and serving millions of inference requests globally. Key responsibilities include: Architecting and managing our cloud environment on Google Cloud Platform (GCP) using Infrastructure as Code (IaC) with . Designing, building, and maintaining our CI/CD pipelines using GitHub Actions to ensure smooth and reliable software delivery. More ❯

Network/Infrastructure Engineer 4 days a week in the office in London We are working with an Investment Manager in London who are seeking an experienced Infrastructure and Network Engineer . The role will focus on maintaining the firm’s current hybrid cloud, network, Internet … and server connectivity infrastructure, and the Palo Alto firewall estate for a demanding business environment. The individual will deal with various issues, including On-Prem/Cloud Infrastructure, networking problems, and routine scheduled network infrastructure upgrades. The candidate must be hands-on and have experience working with … and Terraform to automate deployments and tasks. You would be expected to: Maintain and monitor a highly available and complex hybrid cloud and network infrastructure Perform daily system and network monitoring Repair and recover from hardware and software failures across the entire infrastructure stack Identify issues proactively and More ❯

Purpose of Job We are seeking a Senior Citrix Infrastructure Engineer to join our technology team in a leading financial services organization. The role will focus on designing, implementing, and maintaining a high-performance Citrix Virtual Desktop Infrastructure (VDI) and associated application delivery technologies that supports critical … ideal candidate will have extensive experience in Citrix environments, Windows Server, automation, and security, ensuring a seamless and secure end-user experience. The Senior Engineer is responsible for the technical ownership of specific elements of the organisation’s global IT platform, providing subject matter expertise and acting as the … point of escalation for any significant technical system issues. The Senior Engineer leads and actively participates in the delivery of global IT projects for the organisation, including technical resource management and task planning. Furthermore, they define the expected standards, policies, and documentation with which to administer and maintain the More ❯

Senior Infrastructure Engineer – Quantitative Hedge Fund FTC Full-Time, Office-Based – City of London Quant Capital is urgently looking for a Senior Infrastructure Engineer. We are partnering on this search with our client, a long-established and successful quantitative hedge fund based in the heart of London. … focused environment, this is a unique opportunity to join a small team where your impact will be significant in shaping the future of the infrastructure environment. This role is ideal for infrastructure engineers who enjoy ownership, want to shape an evolving IT landscape, and thrive in a hands … a collaborative, no-silos culture where your ideas and contributions will be taken seriously. The role will involve: • Supporting and enhancing the firm’s infrastructure across on-prem, hybrid, and cloud environments • Managing and maintaining core services including Active Directory, networking, and storage • Supporting trading floor systems in a More ❯

Senior Infrastructure Engineer – Quantitative Hedge Fund £650 per day Contract – Outside of IR35 Full-Time, Office-Based – City of London Quant Capital is urgently looking for a Senior Infrastructure Engineer. We are partnering on this search with our client, a long-established and successful quantitative hedge fund … focused environment, this is a unique opportunity to join a small team where your impact will be significant in shaping the future of the infrastructure environment. This role is ideal for infrastructure engineers who enjoy ownership, want to shape an evolving IT landscape, and thrive in a hands … team (~20 users), including traders and quants • Driving automation through PowerShell scripting and other tools • Managing the firm’s Azure environment and contributing to infrastructure-as-code projects using Terraform • Supporting Windows desktop and server environments in a highly available setting • Liaising with external vendors and service providers • Playing More ❯

Infrastructure Software Engineer – LLM Evaluations London · Full-time · On-site We're looking for an experienced Infrastructure Software Engineer to help build and maintain the systems that support cutting-edge evaluations of large language models (LLMs). You’ll lead decisions on infrastructure design, scale … our evaluation tools, and work closely with researchers to support future needs. Responsibilities: Build and manage scalable infrastructure for LLM evaluations (IaC, AWS, Kubernetes) Develop internal tools for orchestration, access, storage, and debugging Lead on cloud security and infrastructure best practices Collaborate across engineering and research to support More ❯

Windows System Engineer - Hedge Fund - London This tech-driven hedge fund is looking for individuals hungry for progression and technical development and will offer a position where you can immerse yourself in a systems engineering position in a fast-paced financial environment. As a Windows System Engineer, you … will be challenged with designing, implementing, and maintaining the company's technology infrastructure, while working alongside the EUS team to own any escalated problems. Your experience across the Microsoft tech stack including AD, Group Policy, Exchange and Azure will help you stand out in this process. The business is More ❯

assurance and 25 days annual leave. What You'll Do The department is responsible for the design, development and operation of all technology-related infrastructure to support the business, including on-premises and cloud environments. They operate a fully virtualised infrastructure using VMware and Microsoft Azure to host … resilient 10Gbps WAN connecting our datacenter locations and cloud providers. This new hire will expand their current team and accelerate progress on redesigning their infrastructure to improve their use of public cloud. This role has two core elements: Undertake project work to improve and evolve the technology infrastructure. Projects … will typically include designing and deploying upgrades or design changes to major infrastructure components, or introducing new systems into the business. The candidate will be expected to work on projects as required and lead smaller initiatives wherever possible. To support, maintain and operate the firm’s critical technology infrastructure More ❯

Kubernetes Lead Engineer – HPC Infrastructure Contract | London | Hedge Fund I'm currently partnering with a leading hedge fund based in London to find a Kubernetes Lead Engineer with strong experience in High-Performance Computing (HPC) Infrastructure . Role Overview As the Kubernetes Team Lead , you will … ensure observability, scalability, and performance across the platform. Key Responsibilities Lead the design and operation of Kubernetes platforms (on-prem & cloud-native) Manage HPC infrastructure to support trading workloads and scientific compute Guide a team of engineers across distributed environments Define and enforce best practices for infrastructure scalability … monitoring Implement observability tooling and ensure high platform availability Collaborate with other engineering teams to drive automation and operational efficiency Requirements 8+ years in infrastructure/platform engineering roles Deep expertise in Kubernetes (both on-premises and cloud-native) Strong Linux (preferably RHEL) systems administration skills Proven experience with More ❯

How insurance is underwritten here hasn't changed in 300 years – until now. At Ki, we are genuinely solving problems that haven’t been solved with technology in the insurance space. We are building the first fully digital and data More ❯

FAIR, they're now expanding their core team to bring this revolutionary product to market. The Role They're seeking their first dedicated ML Engineer to help productise their Agentic AI platform. This role is perfect for someone who loves to move fast, ship usable systems, and operate at … the intersection of LLMs, infrastructure, and software engineering. What You'll Be Doing Take working prototypes of LLM-based agents and productize them into scalable, robust systems Build infrastructure and pipelines to support and integrate AI Agents in real-world enterprise environments Collaborate with the founding team to …/CD pipelines Familiarity with containerization (Docker, Kubernetes) and observability (e.g., Prometheus, Grafana) A builder mindset: you're comfortable with ambiguous specs, early-stage infrastructure, and iterating fast Excellent communication and self-management skills Nice To Have Familiarity with agentic frameworks, orchestration tools, or vector databases Background in DevOps More ❯

bold plans for growth, and cyber security is at the heart of it. We’re building an in-house capability to get ahead of infrastructure-level threats and reduce our dependency on third-party providers. This is a brand-new role , and you'll be our first dedicated Infrastructure Cyber Security Engineer . If you're excited by ownership, visibility, and being part of a hands-on improvement program, we want to hear from you. What you’ll do Own threat visibility and monitoring across our SD-WAN and network perimeter Investigate, triage and remediate suspicious activity … WAN (Velocloud) Web Application Firewall (F5 Silverline) Core networking tools and visibility platforms (we’re building this with you) What you’ll bring Strong infrastructure and network security experience Hands-on troubleshooting, root cause analysis and remediation A proactive mindset — you won’t wait for alerts Knowledge of perimeter More ❯