Linux Engineer

7 days ago

City Of London, United Kingdom Harrington Starr Full time

Associate Vice President - DevOps, Cloud and Automation at Harrington Starr Direct message the job poster from Harrington Starr Base pay range Up to £100,000 Basic salary What’s on offer Discretionary bonus 30 days holiday Private health and life insurance Enhanced parental leave Flexible working and wellbeing support About Join a tech-forward financial services firm combining 400+ years of heritage with bold investments in modern technology. With a strong in-house development culture and agile delivery mindset, the business is pushing boundaries in AI, machine learning, and high-performance, low-latency trading infrastructure. The 300-person technology team operates in a Scrumban framework and covers Cloud, DevOps, Cybersecurity, Software Engineering and more. In this Kubernetes-focused role, you'll help build and scale a bare-metal HPC platform for a broad spectrum of use cases – from latency-sensitive trading to big data and analytics – with the opportunity to expand into cloud where appropriate. What you’ll do Design and manage highly available Kubernetes clusters across multiple datacentres Collaborate with Linux, infrastructure, and SOC/CERT teams to secure and optimise bare-metal environments Support mission-critical workloads including low-latency trading systems, leveraging tools like Calico, OPA/Gatekeeper, and Kyverno for policy enforcement and security Replace legacy networking infrastructure with a Kubernetes-first architecture, treating pods as first-class citizens in a highly available, BGP-based leaf/spine fabric Lead systems administration on Ubuntu and RHEL systems, tuning OS configurations for performance, observability, and compliance Develop services like DNS-based discovery and egress gateways for smart routing of financial traffic Automate infrastructure using Terraform, Ansible, Git, and CI/CD tooling What we’re looking for Kubernetes administration expertise, ideally on bare-metal Solid understanding of networking (TCP/IP, BGP, VLANs, VRF) Scripting and IaC experience (Python, Bash, Helm, Terraform) Experience working in regulated environments with PAM, policy-as-code, and strong security posture If you're passionate about building high-impact infrastructure in a modern, agile setting - without the red tape - this is an opportunity to truly shape the future of tech in finance. #J-18808-Ljbffr

  • Linux Engineer

    4 days ago

    City Of London, United Kingdom P2P Full time

    DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and trading at our own risk.Headquartered in Chicago with offices...

  • Linux Engineer

    5 days ago

    City Of London, United Kingdom DRW Full time

    OverviewDRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and trading at our own risk.Headquartered in Chicago with offices...

  • Linux Engineer

    4 days ago

    City Of London, United Kingdom DRW Holdings, LLC. Full time

    OverviewDRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and trading at our own risk.Headquartered in Chicago with offices...

  • Linux Engineer

    4 weeks ago

    City of London, United Kingdom Provn Full time

    Linux EngineerWe’re looking for a Linux Engineer to join a growing engineering function responsible for a high-performance computing (HPC) environment. You’ll be part of the team that owns and operates the Linux estate end-to-end, from OS build and configuration through to ongoing operational support.This role offers the chance to work within a highly...

  • Linux Engineer

    3 days ago

    City Of London, United Kingdom Ashdown Group Full time

    Overview A well-established software business is seeking an experienced Linux Systems Administrator to join its team based in London. As the business embraces flexibility, you will be able to work from home up to 2 days per week. Responsibilities Reporting into the IT Director, you will be responsible for the maintenance, performance and security of...

  • Linux Engineer

    1 day ago

    City Of London, United Kingdom Jane Street Full time

    About the Position We are looking for Linux Engineers to join the team that maintains the critical infrastructure underlying the rest of Jane Street's technology. Our group includes hard-working Systems Engineers, Administrators and Programmers, tasked with maintaining and improving the platform that powers Jane Street's production trading systems. Our mix...

  • Linux Engineer

    2 weeks ago

    london (city of london), United Kingdom Hexegic Full time

    Please note that this is a fully on site role, and candidates for this role are required to hold an active DV security clearance. The role Hexegic are looking for a Linux engineer to join our wider team working on the stability of applications deployed across security cleared environments. About us Hexegic are a leading technical consultancy providing agile...

  • Linux Engineer

    4 weeks ago

    City of London, Greater London, United Kingdom Provn Full time

    Linux Engineer We’re looking for a Linux Engineer to join a growing engineering function responsible for a high-performance computing (HPC) environment. You’ll be part of the team that owns and operates the Linux estate end-to-end, from OS build and configuration through to ongoing operational support. This role offers the chance to work within a highly...

  • Linux Engineering Manager

    2 days ago

    City Of London, United Kingdom Jane Street Full time

    We are seeking a leader for our growing team of Linux Engineers.Members of this group, managers and individual contributors alike, are hard-working Systems Engineers, Administrators, and Programmers, tasked with maintaining and improving the platform that powers Jane Street's production trading systems. (Find out more about the Linux Engineer role here).We...

  • Linux Engineer

    3 weeks ago

    City of London, Greater London, United Kingdom Hexegic Full time

    Please note that this is a fully on site role, and candidates for this role are required to hold an active DV security clearance. The role Hexegic are looking for a Linux engineer to join our wider team working on the stability of applications deployed across security cleared environments. About us Hexegic are a leading technical consultancy providing agile...