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About the Role
Design, build, and operate critical infrastructure powering a trading environment, focusing on large-scale bare-metal Linux platforms and on-prem Kubernetes clusters. Play a key role in evolving the Kubernetes platform while supporting and improving the high-performance Linux estate.
Responsibilities
- Design, deploy, and operate on-prem Kubernetes clusters in a bare-metal environment (Rancher-managed)
- Maintain and improve 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 Kubernetes clusters and other Linux-based production systems
- Drive reliability, scalability, and performance improvements across containerized and non-containerized workloads
- Contribute to monitoring, observability, and security posture across 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
Skills
- Rancher
- Cilium or other CNI technologies
- ArgoCD (GitOps workflows)
- Terraform
- CI/CD systems such as GitHub Actions
- Prometheus
- Grafana
- Kubernetes security controls (network policies, RBAC, policy engines)
- Low-latency or performance-sensitive environments
- Internal platform tooling
Location
- Global datacenters
Work Type
- Full-time
Experience Level
- Senior
Benefits
- Performance-based bonus structure
- Opportunity to work alongside best-in-class professionals from over 50 different countries
- Training opportunities
- Discounts on health insurance
- 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
About the Company
- At Optiver, our mission is to constantly improve the market by injecting liquidity, providing accurate pricing, increasing transparency and acting as a stabilizing force no matter the market conditions.
- With a focus on continuous improvement, we participate in the safeguarding of healthy and efficient markets for everyone who participates.
- As one of the largest market making institutions, we are a trusted partner of 70+ exchanges across the globe.
Equal Opportunity
- Optiver is committed to diversity and inclusion.
- We encourage applications from candidates of all backgrounds, and welcome requests for reasonable adjustments during the process.