Linux Systems Engineer - Bare Metal & Kubernetes
OptiverAbout the Role
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.
- 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
Requirements
- Strong Linux systems engineering experience in production environments
- Hands-on experience operating Kubernetes on-prem (not only managed cloud offerings)
- 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
What You'll Get
- A performance-based bonus structure, enabling all of our employees to benefit from our global profit pool
- The opportunity to work alongside best-in-class professionals from over 50 different countries
- Training opportunities, discounts on health insurance, and fully paid first-class commuting expenses
- Extensive office perks, including breakfast, lunch and dinner, world-class barista coffee, in-house physio and chair massages, organized sports and leisure activities
- Training and continuous learning opportunities, including access to conferences and tech events
- No prior trading or financial experience is needed – our onboarding program will kick-start your career at Optiver and support you in gaining all the relevant knowledge about our business