Linux Systems Engineer

As a Linux Systems Engineer, you will be responsible for building and operating highly automated, large-scale infrastructure across multiple datacentres and cloud providers. You will work in a highly customized bare-metal environment, ensuring that our trading servers run at peak performance. Your role will involve tackling complex problems across every layer of our tech stack, optimizing system performance, and implementing intelligent automation to enhance reliability and efficiency.

• Manage a global fleet of Linux systems spanning four continents, 8+ countries, and 20+ datacentres.
• Design, deploy, and maintain high-performance computing environments.
• Monitor system performance, optimize configurations, and manage capacity.
• Debug and analyze system traces, kernel parameters, and hardware/software interactions to identify and resolve performance bottlenecks.
• Develop automation tools and scripts (primarily in Python) to streamline operations and reduce toil.
• Implement and maintain Infrastructure-as-Code solutions using Ansible/Puppet.
• Participate in incident diagnosis, troubleshooting, and long-term resolution efforts.
• Research and integrate new technologies to enhance infrastructure reliability, resiliency, and scalability.
• Contribute to a flexible, rotating support roster to ensure operational continuity.

• A mid-to-senior level Linux Infrastructure Engineer or Systems Engineer with experience in designing, deploying, and managing large-scale Linux environments.
• Strong knowledge of Linux internals, including kernel tuning, networking, load balancing, high availability, and best practices.
• Passionate about automation, with solid coding skills in Python and experience implementing Infrastructure-as-Code (Ansible, Puppet).
• Familiar with virtualization technologies and comfortable working in high-performance computing environments.
• Analytical and proactive, with a problem-solving mindset and a keen eye for system efficiency.
• Effective communicator with strong collaboration skills, able to explain technical concepts clearly.
• Naturally curious about the intersection of hardware and software and how to optimize system performance.
• Comfortable adapting to frequent change and working in a fast-paced, high-stakes environment.
• No prior trading or financial experience is required — our onboarding program will provide the necessary business knowledge.

WHAT YOU’LL GET

You’ll join a culture of collaboration and excellence, where you’ll be surrounded by curious thinkers and creative problem solvers. Driven by a passion for continuous improvement, you’ll thrive in a supportive, high-performing environment alongside talented colleagues, working collectively to tackle some of the most complex problems in the financial markets.

In return for your expertise, you will have access to a range of Optiver perks, including:

• Competitive remuneration, including an attractive bonus structure and additional leave entitlements
• The chance to work alongside diverse, intelligent and driven peers in a rewarding environment
• Training, mentorship, and personal development opportunities
• Gym membership plus weekly in-house chair massages
• Daily breakfast and lunch
• Regular social events including an annual company trip

DIVERSITY STATEMENT

As an intentionally flat organisation, we believe that great ideas and impact can come from everyone. We are passionate about empowering individuals and creating diverse teams that thrive. Every person at Optiver should feel included, valued and respected, because we believe our best work is done together.

Our commitment to diversity and inclusion is hardwired through every stage of our hiring process. We encourage applications from candidates from any and all backgrounds, and we welcome requests for reasonable adjustments during the process to ensure that you can best demonstrate your abilities.

PRIVACY DISCLAIMER

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Personal information protection is of utmost importance to Optiver. Before you provide any personal information to us, we strongly urge you to read Optiver China Privacy Notice for acknowledging how we collect and process your personal information.