Old Mission Capital
Direct Ashby career site

Senior Python Software Engineer

Pay
$200,000 – $250,000 per year
Location
New York, NY
Listed
Yesterday

About the role

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

We are actively hiring a Senior Python Software Engineer with a passion for building reliable systems at scale. This role involves developing and supporting execution platforms, real-time trader-facing applications integrated with our trading systems, large-scale data and research systems, and automation of trader workflows. You will bring proven expertise in Python to distributed systems supporting global trading across the firm.

Required Skills

  • Bachelor's degree in Computer Science, Mathematics, or a related Engineering/Science discipline
  • A minimum of 5 years of professional Python experience in a production environment
  • High proficiency in Python on Linux Platforms
  • Familiarity with relational databases and/or enterprise messaging/object storage (Kafka, Ceph, Iceberg)
  • 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 $200,000 - $250,000 - 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.

Read the original posting

From Old Mission Capital's careers page, first listed on Rolev.ai on November 7, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

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Common questions

What is the salary for the Senior Python Software Engineer role at Old Mission Capital?

The Senior Python Software Engineer posting at Old Mission Capital states compensation of $200,000 – $250,000 per year. Final pay may depend on location, experience, and interview evaluation on Old Mission Capital's official career site.

Where is the Senior Python Software Engineer job at Old Mission Capital located?

This Senior Python Software Engineer position at Old Mission Capital is located in New York, NY. Always check Old Mission Capital's application page for specific state eligibility or relocation policies.

How do I apply for the Senior Python Software Engineer position at Old Mission Capital?

This listing links directly to Old Mission Capital's Ashby application page. You can apply directly on Old Mission Capital's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.