Site Reliability Engineer

Old Mission is a global proprietary trading firm that leverages state-of-the-art technology and research to identify and execute profitable trading strategies across multiple asset classes around the world. Our offices in Chicago, New York, and London are all composed of naturally-curious individuals who thrive in a team environment and constantly strive for improvement.

Old Mission does not seek capital from outside investors, allowing us the flexibility to aggressively invest in our team members and keep them engaged in the firm’s growth.

Do you love automation and enjoy solving technical problems with scalable and well‑managed solutions in a constantly changing environment? Old Mission Capital is seeking a well‑rounded technologist with core strengths in Linux and network administration. This Site Reliability Engineer will be responsible for owning and managing the deployment, maintenance, and enhancement of our servers. This Site Reliability Engineer will also be responsible for the upkeep, configuration, and reliable operation of computer systems that host proprietary trading, third‑party, and open‑source applications.

The main goal for this role is to develop tools and systems to automate and optimize our operational workflow.

• Release management and performance engineering
• Automate processes using Shell and Python scripting
• Deploy, run and monitor all applications
• Coordinate, prioritize, and plan the necessary changes
• Effectively collaborate with traders, developers, and other teams to meet the firm’s technology needs
• Maintain written documentation, provide timely updates on support tickets
• Participate in an on‑call rotation, 2 shifts a month

• An undergraduate or advanced degree in a quantitative field such as Computer Science, Engineering or one of the hard sciences
• 4+ years of Python, Perl, Golang, C++, or Rust development experience
• Must be comfortable working in an Enterprise Red Hat Linux environment
• Must have configuration management experience with Ansible (preferred) or Salt/Chef/Puppet
• Strong experience with containerization and orchestration:
  Podman, Docker, Kubernetes, Rancher, and/or Hashicorp Nomad
• Familiarity with cloud infrastructure, distributed systems, or HPC clusters would be extremely useful
• Exposure to Redfish or other BMC API would be extremely useful
• Strong analytical and problem‑solving skills
• Familiarity with automated CI/CD pipelines for large‑scale systems management is a strong plus
• Familiarity with the full monitoring stack (tracing, metrics, and logging) in the Grafana/Prometheus ecosystems is a plus
• Great communication skills, both written and verbal
• Ability to prioritize and multi‑task in a fast‑paced environment
• Occasional after‑hours and weekend support (including travel) may be required for system upgrades or emergencies

• Fully paid Medical, Dental, Vision, Disability, and Life Insurance
• Fully stocked kitchen; free breakfast and lunch every day on‑site
• Tuition Reimbursement Program
• 401(k) with employer match
• Paid Vacation, Sick, and Parental leaves
• Commuter and Flexible Spending Programs
• In office Monday‑Friday with 10 remote days per year

$175,000 - $225,000 - Salaries are based on numerous factors such as skills, experience, and education. Our compensation package also includes a discretionary bonus and a comprehensive benefits program for full‑time employees. For more information, reach out to your recruiter.

Old Mission is not accepting unsolicited resumes from any staffing/search firms. All resumes submitted by staffing/search firms to any employee at Old Mission via-email, the Internet or directly without a valid signed search agreement will be deemed the sole property of Old Mission, and no fee will be paid in the event the candidate is hired by Old Mission.