Linux Systems Engineer

As a Linux Engineer in the Global Linux team, you will design, build and operate the critical infrastructure that powers our trading environment. The team owns both large-scale bare-metal Linux platforms and on-prem Kubernetes clusters across our global datacenters.

You will play a key role in evolving our Kubernetes platform while continuing to support and improve our high-performance Linux estate.

What you’ll do

Design, deploy and operate on-prem Kubernetes clusters in a bare-metal environment (Rancher-managed)

• Maintain and improve our bare-metal Linux infrastructure, including provisioning, lifecycle management and performance tuning

• Own and operate core Kubernetes components including Cilium (CNI), ArgoCD (GitOps), and Rancher

• Build and maintain CI/CD workflows for infrastructure and cluster deployments using ArgoCD and GitHub Actions

• Develop and maintain infrastructure as code using Terraform and bespoke on-prem systems

• Participate in on-call rotation covering both Kubernetes clusters and other Linux-based production systems

• Drive reliability, scalability and performance improvements across both containerized and non-containerized workloads

• Contribute to monitoring, observability and security posture across the Linux and Kubernetes platforms

• Ensure the broader team can effectively operate and support the Kubernetes and Linux platforms by building clear documentation, operational runbooks, and providing practical, hands-on guidance

Who you are

• Strong Linux systems engineering experience in production environments

• Hands-on experience operating Kubernetes on-prem (not only managed cloud offerings)

• Experience with:

  • Rancher

  • Cilium or other CNI technologies

  • ArgoCD (GitOps workflows)

  • Terraform

  • CI/CD systems such as GitHub Actions

• Solid understanding of networking fundamentals (L2/L3, routing, firewalls, load balancing)

• Experience troubleshooting performance issues across kernel, container and network layers

• Production mindset with experience in incident response and post-mortem driven improvements