1 to 25 of 39 Part-Time Infrastructure Engineer Jobs in London

Infrastructure Engineer – Trading systems Location: City of London Challenge: Supporting the infrastructure sitting beneath a best in class trading systems used by banks, hedge funds and institutional traders worldwide. Junior Infrastructure Engineer Quant Capital is urgently looking for a Infrastructure Engineer to join … as well as Algo Execution. They have offices globally (travel arranged for your benefit if wanted). I am seeking a mid-level Systems Engineer with three (2+) or more years of experience to work in a systems engineer/network/infrastructure focused support role. The … primary responsibility of the Infrastructure Engineer is to provide high level functional and technical support for the company’s products directly to the customer base. You will be joining a hardworking and dedicated Support team within an entrepreneurial and fast paced environment. You will also work closely with More ❯

Infrastructure Engineer - Investment Bank - London Do you want to step foot into a faced past, dynamic financial service environment? This investment bank is looking for a IT Infrastructure Engineer to join their team. As an infrastructure engineer you will be challenged with designing, implementing … Azure, strong understanding of network fundamentals preferably Cisco and automation tools like PowerShell. If you have 3-8 years' experience in a system and infrastructure engineering position this role has the scope to be a great next step in your career. This is a fully onsite role paying up More ❯

Cloud Infrastructure Engineer | Windows, AWS, Terraform | Media & TV Salary - £60,000 Holborn/TCR office 3 days a week My client is a world-leading independent production and distribution group that produces some of the most popular TV programmes in the world. They are looking for a Cloud … Infrastructure Engineer who will support circa 30 internal companies with approximately 1,500 users 100s of freelancers. You will operate in a fast-paced and dynamic work environment. You will be working for a fun organisation, diversity-focused and dress-down culture based in the Holborn/Tottenham … and 2 project-based engineers reporting to the IT Manager. A bit of a unique opportunity here as you will be a ‘modern Windows engineer’ as our client is hosting 95% of their infrastructure in AWS. You will be involved in project work as well as dealing with More ❯

Infrastructure Engineer - M365 £60,000-£68,000 + Bonus London – Hybrid – 1 day per week in the office We are representing a globally renowned brand who are looking for a Microsoft 365 Infrastructure Engineer to join their growing team. Operating in the media industry, this company … are market leaders in what they do with an excellent reputation as a place of work. As an M365 Infrastructure Engineer, you will sit within the Digital Workplace team and operate as the Tech Owner for key Microsoft 365 products, primarily Exchange, Teams & SharePoint. You will be joining … tools within the business. We are looking for: Good technical experience with the M365 suite – SharePoint, Exchange, Teams A background in technical support, technical infrastructure or systems administration (SysAdmin) Exposure to Modern Workplace or Digital Workplace teams Knowledge of email authentication mechanisms – SPF, DKIM and DMARC Experience in on More ❯

Lead Infrastructure Engineer – Desktop Migration – Up to £450 per day Inside IR35 Our client, a leading fund manager, is seeking a Lead Infrastructure Engineer to join their team on an initial 6-month contract. This role supports a large-scale desktop migration programme across UK and … coordinating teams, troubleshooting issues, ensuring successful data transfer and system functionality, and managing risks and stakeholder communication. Key Requirements: 5+ years’ experience as an Infrastructure Engineer Experience working with Windows 10 or Windows 11 Knowledge of migration tools and methodologies Experience within financial services is highly desirable This More ❯

Infrastructure Engineer – London, UK Global Futures and Options Ltd (GFO-X)”, a UK FCA-authorised and regulated MTF, 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 … who require a regulated, institutional-grade trading venue for digital asset derivatives, including bitcoin index futures and options. 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. The successful candidate will join the Infrastructure team, reporting to the Infrastructure Team Lead, and will work with the project stakeholders to build and maintain the infrastructure necessary for an institutional-grade trading venue. Role Deployment and More ❯

Senior Infrastructure Engineer - High Frequency Trading Firm: A leading £30BN AUM global systematic hedge fund is looking for an exceptional Infrastructure Engineer to join their Crypto Assets division. In this senior role, you'll architect and maintain mission-critical infrastructure powering their cryptocurrency trading operations. … operations. Your focus will include modernizing build and release pipelines for trading applications and network infrastructure. Leading continuous improvement initiatives, you'll enhance the infrastructure's reliability, scalability, and efficiency through advanced automation with Terraform, Terragrunt, and Ansible while while working with cutting-edge technologies in a high-performance … environment with the best technologists in the industry. Required Qualifications: Proven infrastructure operations experience in financial technology or similar industry Strong AWS cloud architecture expertise and advanced Linux systems administration Demonstrated success with monitoring solutions (Grafana, Prometheus) Experience optimizing build and release processes in trading environments Networking and troubleshooting More ❯

challenge; an environment that pushes you to think deeper, troubleshoot faster, and develop technical skills. We are seeking a highly skilled and experienced Senior Infrastructure Engineer to lead and support our cloud and on-premises infrastructure, with a particular emphasis on Microsoft Azure, Zerto, disaster recovery, and … security best practices. This role will be instrumental in designing, implementing, and maintaining robust infrastructure solutions that ensure high availability, data integrity, and security compliance. If you want to work somewhere that values your expertise in both resolving critical incidents and designing preventative measure, where you can make a … genuine impact on customers’ data security and business continuity, then keep reading. The Role: What You’ll Do Here: - Azure Infrastructure Management: Design, deploy, and manage scalable Azure-based infrastructure services including IaaS, PaaS, networking, and security components. - Virtualisation VMware & Hyper-v. Management of environments - Disaster Recovery: Architect More ❯

Infrastructure Engineer – Long-term Contract – Inside IR35 Location: Remote with occasional travel to client site (UK-based) Contract Length: 12 months minimum Engagement Type: Inside IR35 Start Date: ASAP Clearance: Must be eligible to work in the UK Are you ready to join a high-profile digital transformation … program supporting one of the world’s most respected enterprise software providers? Our client, a global IT services leader, is looking for an Infrastructure Engineer to play a key role in a dynamic team delivering scalable, secure infrastructure for mission-critical environments. About the Role This is … a fantastic opportunity to work on a long-term contract supporting complex, cloud-native infrastructure with a focus on automation, scalability, and high availability. The end customer is a global leader in enterprise software solutions, and this role supports internal teams building and maintaining infrastructure to power next More ❯

Job Title: Cloud Infrastructure Engineer (Contract – Inside IR35) Client: Leading Insurance Company Contract Duration: 6 Months (Until Dec 2025) Rate: Please discuss (Inside IR35) Location: Remote (UK-based only) IR35 Status: Inside IR35 (via umbrella company engagement) Overview: We are hiring an experienced Cloud Infrastructure Engineer to join a major infrastructure programme for a leading insurance client. You'll play a key role in delivering secure, automated cloud environments that support business-critical applications. This is a hands-on, delivery-oriented role requiring deep expertise in AWS, infrastructure automation, and enterprise application support. … You will be stepping in to support continuity during a period of contractor transition. Key Responsibilities: Translate high-level architecture into working AWS infrastructure environments Build environments based on HLDs, aligning with architectural standards and patterns Use Terraform and Ansible to implement infrastructure-as-code and automate application More ❯

Job Title: Cloud Infrastructure Engineer (Contract – Inside IR35) Client: Leading Insurance Company Contract Duration: 6 Months (Until Dec 2025) Rate: Please discuss (Inside IR35) Location: Remote (UK-based only) IR35 Status: Inside IR35 (via umbrella company engagement) Overview: We are hiring an experienced Cloud Infrastructure Engineer to join a major infrastructure programme for a leading insurance client. You'll play a key role in delivering secure, automated cloud environments that support business-critical applications. This is a hands-on, delivery-oriented role requiring deep expertise in AWS, infrastructure automation, and enterprise application support. … You will be stepping in to support continuity during a period of contractor transition. Key Responsibilities: Translate high-level architecture into working AWS infrastructure environments Build environments based on HLDs, aligning with architectural standards and patterns Use Terraform and Ansible to implement infrastructure-as-code and automate application More ❯

Job Title: Cloud Infrastructure Engineer (Contract – Inside IR35) Client: Leading Insurance Company Contract Duration: 6 Months (Until Dec 2025) Rate: Please discuss (Inside IR35) Location: Remote (UK-based only) IR35 Status: Inside IR35 (via umbrella company engagement) Overview: We are hiring an experienced Cloud Infrastructure Engineer to join a major infrastructure programme for a leading insurance client. You'll play a key role in delivering secure, automated cloud environments that support business-critical applications. This is a hands-on, delivery-oriented role requiring deep expertise in AWS, infrastructure automation, and enterprise application support. … You will be stepping in to support continuity during a period of contractor transition. Key Responsibilities: Translate high-level architecture into working AWS infrastructure environments Build environments based on HLDs, aligning with architectural standards and patterns Use Terraform and Ansible to implement infrastructure-as-code and automate application More ❯

Job Title: Cloud Infrastructure Engineer (Contract – Inside IR35) Client: Leading Insurance Company Contract Duration: 6 Months (Until Dec 2025) Rate: Please discuss (Inside IR35) Location: Remote (UK-based only) IR35 Status: Inside IR35 (via umbrella company engagement) Overview: We are hiring an experienced Cloud Infrastructure Engineer to join a major infrastructure programme for a leading insurance client. You'll play a key role in delivering secure, automated cloud environments that support business-critical applications. This is a hands-on, delivery-oriented role requiring deep expertise in AWS, infrastructure automation, and enterprise application support. … You will be stepping in to support continuity during a period of contractor transition. Key Responsibilities: Translate high-level architecture into working AWS infrastructure environments Build environments based on HLDs, aligning with architectural standards and patterns Use Terraform and Ansible to implement infrastructure-as-code and automate application More ❯

Machine Learning Infrastructure Engineer 💰 Salary: Up to £45k 📍 Location: Central London – Hybrid/Onsite flexibility 🚀 Support high-performance AI and ML environments as part of a collaborative, forward-thinking tech team 💡 Your Role: We’re hiring a Machine Learning Infrastructure Engineer to support and optimise mission … critical HPC environments used in AI and machine learning. You’ll be part of a dynamic service desk and infrastructure team, working directly with users, solving technical challenges, and improving infrastructure reliability across complex environments. 💡 What You’ll Be Doing: Administering and supporting HPC systems used in AI …/ML workflows Troubleshooting scheduled job queues and task automation issues Managing incoming service requests and incidents across end-user and infrastructure layers Leading user onboarding/offboarding and internal IT provisioning Supporting client-facing projects, infrastructure upgrades, and recommendations Maintaining and improving internal tools like Microsoft More ❯

Contract Infrastructure Engineer 📍 Location: Hybrid (London) 📅 Contract Length: 6 months Make your mark on the future of the planet. The world is facing a nature crisis. We’ve lost 85% of the world’s wetlands, 35% of its forests, and 65% of its living creatures. Action on nature … we’re entering a high-growth phase and seeking mission-driven experts to join us. About the role - We’re looking for a contract Infrastructure Engineer to strengthen our engineering team with critical experience in infrastructure and cybersecurity. You’ll play a key role in developing secure … world environmental outcomes. What you’ll bring - We’re looking for someone who has experience with: Designing, implementing, and managing secure and scalable cloud infrastructure, especially in AWS (knowledge of Google Cloud is a plus). Using Infrastructure as Code (IaC) and Configuration Management tools like Terraform and More ❯

Infrastructure Engineer Location : Central London (Hampshire Site available also) Hybrid : 2 days per week on-site Salary : Up to £75,000 We are looking for an experienced Infrastructure Engineer who has experience with networking to join our client based in Central London. This role will be … and cloud environments across multiple office sites and you will help contribute to the growth of this well established organisation. Experience managing hybrid network infrastructure is key as you will be experienced with on-prem and cloud services (preferably in Azure). You will have experience implementing network security … will bring good experience with IaC practices and have experience using tools such as Terraform for automation. Key Responsibilities: Design, implement, and maintain network infrastructure across multiple locations and cloud platforms (Azure) Manage Meraki Networks, Palo Alto Firewalls Hands on implementation of wireless networks Implement WAN solutions and network More ❯

AWS Infrastructure Engineer This leading consultancy with clients in the public sector is looking for an Infrastructure Engineer with strong AWS and Cloudflare experience to spearhead their technical advancements and ensure the security and performance of their systems to their clients. This role requires a deep … services, including serverless environments and containerisation Proficiency in Cloudflare for web application firewall, DNS, CDN Networking, security protocols, and encryption techniques Experience with cloud infrastructure, DevOps practices, and security principles Excellent problem-solving, analytical, and communication skills Ability to work independently and collaboratively within a team An active UK More ❯

Network Infrastructure Engineer Location : Central London or Hampshire Hybrid : 2 days per week on-site Salary : Up to £75,000 We are seeking a Network Infrastructure Engineer to join our client who will manage and optimise both traditional and cloud-based network infrastructures. This role focuses … 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 … Meraki, Palo Alto Firewalls, and cloud platforms Experience configuring and supporting WAN technologies including BGP, OSPF, VPNs and IPSEC Strong skills in Azure, and Infrastructure as Code (IaC) tools like Terraform Automation experience with Cloudflare or similar tools Solid understanding of WAN technologies, DHCP/DNS, SAN/NAS More ❯

Job Title : Linux Infrastructure Engineer Location: Central London (Onsite) Would you like to be part of a fintech organisation poised to disrupt the fintech space? If you are passionate about technology and eager to collaborate with industry experts, this is the role for you! Job Description: As a … Linux Infrastructure Engineer, you will report directly to the Head of Infrastructure and play a pivotal role in building out their state-of-the-art infrastructure. Your primary responsibilities will include: Monitoring and supporting the exchange infrastructure to ensure optimal performance and reliability. Leading new projects More ❯

Infrastructure Support Engineer Quant Trading Firm Contract £700 per day 6 Months Outside IR35 5 days in the office Quant Capital is urgently looking for an Infrastructure Engineer to join our high profile client. Our client is a $500 million strong systematic quant commodity trading fund … desktops, servers, and virtualised environments. Liaise with external IT service partners and vendors. Ensure best practices are enforced across the estate, reengineering where necessary. Infrastructure Engineers MUST have: Core Infrastructure Focus: 7+ years' experience in IT support or infrastructure, ideally in professional services or finance. M365 Administration More ❯

As Senior Infrastructure Engineer you will manage and participate in the delivery and support of IT infrastructure and IT infrastructure security for new and existing systems and solutions. You will support team members in the provision of 2nd and 3rd line technical IM&T support (Desktop … Software, Infrastructure and Telephony) maintaining and delivering a high degree of customer service for all Information Management and Technology (IM&T) support queries. Responsibilities Proactively respond to security vulnerabilities identified by monitoring tools, performing remediation tasks Responsible for monitoring and reporting for on-premise and cloud infrastructure systems … for the early identification of issues Ensure RSSB infrastructure is secure and adheres to Cyber Security standards Act as the escalation point for technical issues Responsible for the administration and operation of the RSSB cloud and onsite physical infrastructure environments Management and oversight of the network infrastructure More ❯

Microsoft Infrastructure Security Engineer Location: London (1 day per week on-site) Contract Length: 6 months (extension possible) Day Rate: Up to £850 (inside IR35) Clearance Required: SC clearance (must be active) Key Skills Required: Entra ID & Privileged Identity Management (PIM) About the Role Our client, a key … delivery partner in UK government cyber security programmes, is seeking an experienced Microsoft Security Engineer to lead a critical technical delivery workstream. You will play a pivotal role in implementing a secure and scalable separation of high-privilege user accounts across a hybrid Active Directory and Microsoft Entra (Azure … security teams to ensure successful deployment. Support incident response planning and execute break-glass scenarios as required. Qualifications and Skills Proven experience as a Infrastructure Engineer or Security Engineer within secure or government settings. Deep expertise in Active Directory (OU design, GPOs, Tier-0 security models). More ❯

Job Title: ML Infrastructure Senior Engineer Location: Abu Dhabi, United Arab Emirates [Full relocation package provided] Job Overview We are seeking a skilled ML Infrastructure Engineer to join our growing AI/ML platform team. This role is ideal for someone passionate about large-scale machine …/SLMs using advanced inference engines like vLLM. You will play a critical role in designing, deploying, optimizing, and managing ML models and the infrastructure around them—both for inference, fine-tuning and continued pre-training. Key Responsibilities · Deploy large-scale or small language models (LLMs/SLMs) using … configurations (GPU, CPU, RAM) based on model size and workload patterns. · Build, test, and optimize LLMs Inference for consistent model deployment. · Implement and maintain infrastructure-as-code to manage scalable, secure, and elastic cloud-based ML environments. · Ensure seamless orchestration of the MLOps lifecycle, including experiment tracking, model registry More ❯

Senior Infrastructure Engineer – Quantitative Hedge Fund 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 based in the … 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 ❯