Linux HPC Administrator

Do you love solving hard Linux and HPC problems where performance really matters? This role puts you at the core of the infrastructure that powers a global quantitative trading firm, supporting thousands of servers, research compute, and the trading teams that depend on them every day.

ABOUT THE COMPANY

Our client is an established quantitative trading firm with a long track record of innovation and a global footprint. Independent trading teams build their strategies on a high-performance platform, backed by the scale of a large organization. Engineers here work on challenging problems in low-latency programming, FPGA technology, hardware acceleration, and machine learning. The culture is collaborative, casual, and results-oriented, a place where smart, driven people thrive without the egos, and great ideas win.

WHY YOU’LL LOVE THIS ROLE

• Work for a stable, rapidly growing organization where you can grow personally and professionally.
• Use your expertise in Linux, HPC, and automation to directly shape the platform and business.
• Do meaningful work that has a real impact on customers and the team every day.
• Collaborate with bright, motivated people who genuinely enjoy working together and building something great.
• Work directly with trading and engineering teams on infrastructure where performance is everything.

WHAT YOU’LL DO

• Support, maintain, and enhance the firm’s trading Linux infrastructure and its HPC environment for research.
• Manage HPC systems that support trading operations, including the Condor job scheduler.
• Handle emergency response and execute planned changes, updates, and deployment projects across the Linux server environment.
• Perform advanced profiling and troubleshooting of performance issues on Linux servers.
• Help build and refine tools that automate provisioning, configuration, and monitoring for thousands of Linux servers.
• Manage core services, including DHCP, LDAP, DNS, and NFS, across on-premises and hosted data centers, as well as the public cloud.
• Communicate daily with trading teams and core engineering.
• Participate in an on-call rotation and occasional weekend shifts.
• Stay current on the latest technologies and best practices in HPC, storage, and GPU computing.

WHAT YOU BRING

• Experience maintaining, operating, and administering an advanced Linux environment.
• A comprehensive understanding of Linux OS concepts and internals.
• Daily use of, and contribution to, automation and monitoring tools.
• Expert knowledge of Bash and good knowledge of Python for scripting and automation.
• Working knowledge of Intel-based hardware and server components.
• Understanding of Linux server-side networking and common network protocols.
• Understanding of configuration management, source control, CI/CD, and automated deployment.
• Strong communication skills and the ability to work effectively on a team.
• Eligibility to work in the US for any employer (sponsorship is not available).

BONUS POINTS IF YOU HAVE

• Experience with VAST and Weka storage solutions (highly desirable).
• Knowledge of parallel file systems (such as GPFS), batch systems (such as Slurm, Grid Engine, or Condor), and high-performance network interconnects.
• Experience with containerization and orchestration tools like Docker and Kubernetes.
• Experience managing hybrid cloud and on-premises environments.
• Experience proposing and implementing Infrastructure as Code practices from the ground up.
• An understanding of trading infrastructure and low-latency systems.
• Contributions to open source or personal projects.

COMPENSATION AND PERKS

• Base salary: $130,000 to $200,000 depending on experience, plus eligibility for a discretionary bonus.
• Generous paid time off, savings plans, and financial wellness tools.
• Hybrid working opportunities.
• Free breakfast,…