Our client is a global IT services company.Job Description:Linux - System AdministratorLocation: Cheltenham ( 5 Days on Site)Due to the nature of the work and the customers we support, the succes...Read More>>.

Linux Systems and Data Centre Engineer Remote / Slough to £65kOpportunity to progress your career at a global Fintech solutions provider.As a Linux Systems and Data Centre Engineer, you'll operate and improve produc...Read More>>.

Overview In this role you support the maintenance and development of a Linux-centric estate across hosts, VMs, containers, and storage. You will help refine monitoring, automation, and security while embracing open source to drive performan...Read More>>.

Overview As a Linux Systems Engineer at a leading fintech trading firm, you will design and maintain our global Linux-based server and network stack, driving automation and scalable ops. You will work within a collaborative infrastructure t...Read More>>.

Overview As a Linux Systems Engineer, you will help design, build, and sustain the infrastructure that provisions products across media, radio, and advertising. You’ll operate in a fast-growing SME environment with clear paths to impact a...Read More>>.

Overview As a Linux Systems Engineer in a high-profile trading environment, you will design and support highly available Linux estates across a modern tech stack. You’ll work alongside a senior Linux administrator to support production sy...Read More>>.

Overview In this role you will maintain and optimize a Linux-based platform powering high-frequency trading systems. You will join a highly skilled team known for rigour and innovative culture, working with a mix of in-house and open-source...Read More>>.

Overview In this role you will support mission-critical trading infrastructure for a leading fintech client. You will work within a dedicated support team, collaborating with sales and engineering to maintain high-availability systems. You...Read More>>.

Overview In this role you will support a high-profile quant hedge fund’s development team as a Junior Linux Systems Engineer. You’ll build and maintain Linux servers, VMs, containers, and mixed environments, while shaping storage and ne...Read More>>.

Overview In this role you will strengthen a high-performance Linux-driven trading platform for a global quant firm. You will collaborate with a top-tier team to build and automate core systems powering proprietary trading, applying deep OS...Read More>>.

Overview In this contract role, you will support the creation, maintenance and testing of software builds for SystemCanada, operating within a corporate IT environment. You will manage version control and traceability, and oversee maintenan...Read More>>.

Overview In this Senior Linux Engineer role, you design, build, and optimize cutting-edge Linux-based infrastructure for a leading trading and research environment. You will work within the Quant Systems team in London to shape compute, sto...Read More>>.

Overview In this role you will support a UK-based, high-frequency trading infrastructure expanding over the next 6–12 months. You’ll work within a small, cross-functional team to maintain hardware, networking, and software build pipelin...Read More>>.

Overview In this role you will support a global data center portfolio, focusing on architecture, implementation, troubleshooting and optimization in a fast-paced trading environment. You collaborate with software engineers, traders and infr...Read More>>.

Senior Embedded Linux / Systems Software Engineer Build mission‑critical technology for the operating room Are you passionate about low‑level Linux systems and medical‑grade software that directly im...Read More>>.

Neutral Street is seeking a seasoned architect to optimize a high-performance Linux environment for trading systems. The role focuses on latency, throughput, security, and reliability of OS configurations.You will tune the kernel, automate...Read More>>.

CGI is looking for an experienced System Engineer to join our Space, Defence and Intelligence team in the UK. The role focuses on delivering secure, mission-critical systems for government clients, with strong emphasis on collaboration and innovat...Read More>>.

OverviewSite Reliability Engineer role at Tribal Group. Remote UK-based opportunity.This is a full-time remote role focused on maintaining reliable, scalable, and high-performance SaaS services across cloud environ...Read More>>.

CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named one of the 'World's Best Employers' by Forbes magazine. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3....Read More>>.

Leonardo is seeking a Linux Systems Engineer in London for hybrid working (office/remote). You will work at the intersection of Linux internals, networking and security to build secure endpoint solutions for high‑profile clients.You will...Read More>>.

System Recruitment is seeking an experienced C/Linux Software Developer for a hybrid role accessible from the Southampton area. The position focuses on building and maintaining compact C code on Linux, integrating authentication components, and su...Read More>>.

Position: Software Engineer (Bash and Shell Script) Type: Hourly contract Compensation: $80–$90/hour Location: Remote Commitment: 10–40 hours/week Role Responsibilities...Read More>>.

Overview The Trade Desk is a global technology company with a mission to create a better, more open internet for everyone through principled, intelligent advertising. Handling over 1 trillion queries per day, our platform operates at a...Read More>>.

Leonardo UK Ltd is seeking a Linux Systems Engineer to shape secure endpoint solutions for high-profile clients. You will operate at the intersection of Linux internals, networking, and security, delivering robust, scalable systems.Based in...Read More>>.

Join a leading Microsoft partner – Digital, AI & Tech Transformation. Remote role but must be UK based and eligible for SC Clearance. No sponsorship can be offered. We are looking for a GitHub Enterprise Subject Matter Expert (SME)...Read More>>.

Formula 1 is seeking a D365 Systems Administrator to join our IT department. You will maintain and optimise the D365 Finance & Operations environment and integrated systems in line with F1 business goals. You will configure and support D365, build...Read More>>.

We're looking to strengthen our IT Infrastructure Team with a Linux / Network Engineer. This role reflects increasing demand for Linux and networking expertise across both our client project work and our core infrastructure, including a planned...Read More>>.

Join our dynamic IT team as a SharePoint Systems Administrator where you’ll play a critical role in managing and optimizing our enterprise SharePoint infrastructure. This position requires an active Top‑Secret clearance and offers the oppor...Read More>>.

Who We Are Verve is a global ad-tech company that owns and operates a fully integrated advertising stack, spanning demand, supply, and data. While most companies in our space specialize in one layer of the ecosystem, we own the DS...Read More>>.

The University of Oxford is establishing OxRC, a new university-wide research computing service. As a Senior Research Systems Administrator, you will design, deploy and operate Linux-based infrastructure, spanning HPC/HTC platforms and GPU-enabled...Read More>>.

KBR, Inc. seeks a Senior IT Systems Administrator (Linux & HPC) to own and operate Linux-based enterprise and HPC platforms, including SLURM scheduling, Nvidia Base Command Manager, and CycleCloud. You will work with engineering and scientific use...Read More>>.

N P Associates in London is seeking a Linux Systems Administrator / DevOps Engineer to join a high-performance team building scalable, low-latency infrastructure. You will be hands-on from day one in a small DevOps group, focusing on automation an...Read More>>.

Glasgow Caledonian University is seeking a Senior Linux Administrator to lead the Linux infrastructure within the Information Services Directorate. The role focuses on owning critical systems, maintaining network services, and driving automation a...Read More>>.

AdvertApplications are invited for the post of Senior Linux Administrator (Senior IT Advisor) within the infrastructure team in the University's Information Services Directorate.The successful applicant will join a small team of...Read More>>.

Oliver Bernard partners with a world-leading systematic trading firm in London to hire a senior Linux engineer for its Infrastructure teams. You will work on sophisticated trading systems, write software, filesystems and tools, and collaborate wit...Read More>>.

YO AI Labs is seeking a Salesforce/HubSpot Administrator - Revenue Systems (SaaS) to support a remote UK client project. You will audit and optimise CRM and revenue platforms, resolve data and process inconsistencies, and document complex SaaS wor...Read More>>.

YO AI Labs is seeking an experienced Salesforce / HubSpot Administrator – Revenue Systems (SaaS) to support a customer project focused on operational excellence across CRM and revenue systems. This remote contractor role emphasizes evaluating Sa...Read More>>.

YO AI Labs is seeking an experienced Salesforce and HubSpot Administrator to support revenue systems for a SaaS customer project. You will audit CRMs, resolve data and process inconsistencies, and document operational approaches to complex workflo...Read More>>.

Client Server Limited is seeking a Linux Systems and Data Centre Engineer to oversee production Linux environments in a hybrid role with a focus on Slough data centre operations. You will manage Ubuntu fleets, LXD/LXC, and L3 incident responses wh...Read More>>.

Slough, Berkshire | £55k - £65k per year Linux Systems and Data Centre Engineer Remote / Slough to £65k Opportunity to progress your career at a global Fintech solutions provider. As a Linux Systems and Data Centre Engi...Read More>>.

Jane Street is seeking Linux Engineers to join the team maintaining its critical infrastructure that underpins the firm's technology. The role covers a broad range of areas from the physical hardware to workload orchestration, with opportunities t...Read More>>.

Jane Street is seeking Linux Engineers to maintain the critical infrastructure that underpins its technology stack. The role spans on-prem and cloud infrastructure across compute, storage, and networking, from hardware to workload orchestration....Read More>>.

Jane Street in London offers a Linux Engineering internship that pairs you with full-time mentors to tackle real‑world projects and learn how we build and maintain the critical infrastructure that underpins our trading systems.You’ll sp...Read More>>.