Founding Software Engineer
Confirmed on the employer's own hiring board on Nov 11, 2026. First seen by Alion on Nov 11, 2026. Old Mission scores B on the Alion truth index.
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.
About the Position
Old Mission Capital, a quantitative proprietary trading firm, is hiring its first Senior Software Engineer in Hong Kong to own the technology that keeps our APAC office trading. This could be anything from the office network and printers to our low-latency trading systems. This is a generalist role by design. You will be the founding engineer on the ground, working directly with Traders and Quants, and you will build and run the infrastructure and automated trading systems behind their strategies. You will also set the engineering standards for the Hong Kong office as it grows.
Required Skills
BS/BA degree in Computer Science, Engineering, or another technically related field
5+ years as a professional software engineer building and running production systems, with strong Python and C++ skills
Strong Linux systems and administration skills, including troubleshooting, scripting, and systems programming
Experience with relational databases (e.g., PostgreSQL, MySQL)
Must be fluent in writing and speaking English and Cantonese
Ability to work directly with Traders and Quants and to collaborate across offices and time zones
Nice to Have
Networking fundamentals (TCP/UDP, DNS, VPNs, switching, and routing)
Experience with parallel, concurrent, and multi-threaded programming
Experience writing applications that connect to exchange APIs or use network protocols
Experience developing low-latency trading systems
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.