Old Mission jobs
All open jobs at Old Mission, updated every few hours. Counts as of November 13, 2026.
- Open roles
- 42
- Posted in the last 7 days
- 5
- Open 60 days or more
- 79%
- Typical time open: still measuring
- —
Open roles by department
- Other18
- Engineering9
- Operations6
- Data4
- Finance2
- Sales2
- Legal & policy1
Live right now
Recent roles at Old Mission
1 newer role for Pro — posted in the last 24 hours, listed with the employer once they’re a day old.
- Posted Nov 12
Associate Project Manager(opens the employer’s site)
Operations · On-site · Chicago, IL · Entry level
Posted Nov 11- Posted Nov 11
- Posted Nov 7
- Posted Oct 13
Junior Quantitative Trader (APAC)(opens the employer’s site)
Other · On-site · Hong Kong · Entry level
Posted Oct 1- Posted Oct 1
Floor Trader - 2027 Graduate Program (August Start)(opens the employer’s site)
Operations · On-site · Chicago, IL · Entry level
Open 58 daysPosted Sep 16Trading Production Engineer - 2027 Graduate Program(opens the employer’s site)
Engineering · On-site · Chicago, IL · Entry level
Open 2 monthsPosted Sep 9Fundamental Research Analyst - 2027 Graduate Program - (August Start)(opens the employer’s site)
Data · On-site · Chicago, IL · Entry level
Open 2 monthsPosted Sep 2Senior Software Engineer - Post Trade(opens the employer’s site)
Engineering · On-site · Chicago, IL · Senior
Open 2 monthsPosted Aug 27Associate Head of Trader Education(opens the employer’s site)
Other · On-site · Chicago, IL · Lead & director
Open 3 monthsPosted Aug 13Legal Intern - Summer 2027(opens the employer’s site)
Legal & policy · On-site · Chicago, IL · Entry level
Open 3 monthsPosted Aug 10Quantitative Researcher (Ph.D.) - 2027 Graduate Program - (August Start)(opens the employer’s site)
Operations · On-site · Chicago, IL · Entry level
Open 3 monthsPosted Jul 30Software Engineer – 2027 Internship Program (June Start)(opens the employer’s site)
Engineering · On-site · Chicago, IL · Entry level
Open 4 monthsPosted Jul 15Quantitative Trader – 2027 Graduate Program (August Start)(opens the employer’s site)
Operations · On-site · London · Entry level
Open 4 monthsPosted Jul 14Software Engineer – 2027 Graduate Program (August Start)(opens the employer’s site)
Engineering · On-site · Chicago, IL · Entry level
Open 4 monthsPosted Jul 14Quantitative Trader – 2027 Graduate Program (February Start)(opens the employer’s site)
Operations · On-site · Chicago, IL or New York, NY · Entry level
Open 4 monthsPosted Jul 14Quantitative Trader – 2027 Graduate Program (August Start)(opens the employer’s site)
Operations · On-site · Chicago, IL or New York, NY · Entry level
Open 4 monthsPosted Jul 14Tax Manager/Senior Tax Manager(opens the employer’s site)
Finance · On-site · Chicago, IL · Senior
Open 4 monthsPosted Jul 3Fundamental Research Analyst (Asian Market Hours)(opens the employer’s site)
Data · On-site · Chicago, IL
Open 4 monthsPosted Jul 1Senior Python Software Engineer(opens the employer’s site)
Engineering · On-site · New York, NY · Senior
Open 6 monthsPosted May 5- Posted Mar 30
Junior Quantitative Trader (Asian Market Hours)(opens the employer’s site)
Other · On-site · Chicago, IL · Entry level
Open 7 monthsPosted Mar 19Quantitative Researcher (Experienced - Ph.D.)(opens the employer’s site)
Other · On-site · Chicago, IL
Open 8 monthsPosted Mar 16Quantitative Researcher (Systematic Equities)(opens the employer’s site)
Other · On-site · New York, NY
Open 9 monthsPosted Jan 28Systematic Equity Options Trader(opens the employer’s site)
Other · On-site · Chicago, IL
Open 11 monthsPosted Nov 19- Posted Apr 22
Quantitative Researcher (Fixed Income)(opens the employer’s site)
Other · On-site · Chicago, IL
Open 19 monthsPosted Mar 24Junior Quantitative Researcher (Ph.D.)(opens the employer’s site)
Other · On-site · Chicago, IL · Entry level
Open 22 monthsPosted Dec 24