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Python Software Engineer

Old Mission
CompanyOld Mission
CategoryEngineering
LocationNew York
RemoteOn-site (inferred)
EmploymentNot stated
LevelNot stated
SalaryNot stated by the employer
Posted5 May 2026
Last verified1 Aug 2026
SourceEmployer career page (greenhouse)
Applications are handled by the employer, not by us.Apply on the employer's site →
Description
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.   About the Position We are on the lookout for Software Engineers who excel in Python. As a Software Engineer, you'll play a pivotal role on your team, taking ownership of cutting-edge projects. Your primary responsibilities will encompass the refinement and advancement of our trading systems and mission-critical applications. Additionally, you'll collaborate closely with quants, traders, and research teams to bolster our systems' adaptability and scalability, all while contributing to the development of innovative trading applications. Required Skills Bachelor's degree in Computer Science, Mathematics, or a related Engineering/Science discipline A minimum of 2 years of professional Python experience in a production environment High proficiency in Python on Linux Platforms Familiarity with relational databases (e.g. PostgreSQL, MySQL, etc.) Exceptional written and verbal communication skills A collaborative team player with a knack for owning and driving exciting projects Thrives in a fast-paced work environment, showcasing effective problem-solving abilities Benefits and Perks   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 M-F with 10 remote days per year Base Salary Range   $150,000 - $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.
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Python Software Engineer — Old Mission · Job Opportunities API