Job Description
Linux Systems Engineer - Bare Metal & Kubernetes
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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.
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You will play a key role in evolving our Kubernetes platform while continuing to support and improve our high-performance Linux estate.
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Design, deploy and operate on-prem Kubernetes clusters in a bare-metal environment (Rancher-managed)
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Maintain and improve our bare-metal Linux infrastructure, including provisioning, lifecycle management and performance tuning
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Own and operate core Kubernetes components including Cilium (CNI), ArgoCD (GitOps), and Rancher
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Build and maintain CI/CD workflows for infrastructure and cluster deployments using ArgoCD and GitHub Actions
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Develop and maintain infrastructure as code using Terraform and bespoke on-prem systems
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Participate in on-call rotation covering both Kubernetes clusters and other Linux-based production systems
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Drive reliability, scalability and performance improvements across both containerized and non-containerized workloads
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Contribute to monitoring, observability and security posture across the Linux and Kubernetes platforms
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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
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Who you are
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Robust Linux systems engineering experience in production environments
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Hands-on experience operating Kubernetes on-prem (not only managed cloud offerings)
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Experience with:
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Rancher
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Cilium or other CNI technologies
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ArgoCD (GitOps workflows)
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Terraform
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CI/CD systems such as GitHub Actions
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Solid understanding of networking fundamentals (L2/L3, routing, firewalls, load balancing)
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Experience troubleshooting performance issues across kernel, container and network layers
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Production mindset with experience in incident response and post-mortem driven improvements
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Nice to have
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Experience building monitoring stacks (e.g. Prometheus, Grafana)
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Experience with Kubernetes security controls (network policies, RBAC, policy engines)
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Knowledge of low-latency or performance-sensitive environments
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Experience contributing to internal platform tooling
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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.
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Who we are
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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.
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What you'll get
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You'll join a culture of collaboration and excellence, where you'll be surrounded by curious thinkers and creative problem solvers. Motivated by a passion for continuous improvement, you'll thrive in a supportive, high-performing environment alongside talented colleagues, working collectively to tackle the toughest problems in the financial markets.
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In addition, you'll receive:
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A performance-based bonus structure, enabling all of our employees to benefit from our global profit pool.
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The opportunity to work alongside best-in-class professionals from over 50 different countries.
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Training opportunities, discounts on health insurance, and fully paid first-class commuting expenses.
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Extensive office perks, including breakfast, lunch and dinner, world-class barista coffee, in-house physio and chair massages, organized sports and leisure activities.
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Training and continuous learning opportunities, including access to conferences and tech events.
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Please note:
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We do not require any assistance from third-parties including agencies in the recruitment of this role
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We cannot accept applications via email
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Optiver is committed to diversity and inclusion. We encourage applications from candidates of all backgrounds, and welcome requests for reasonable adjustments during the process.

📌 Linux Systems Engineer - Bare Metal & Kubernetes (New South Wales)
🏢 Optiver Holding
📍 New South Wales