Python Software Engineer
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Before you apply
LocationLondon
Work modeon-site
Typefull-time
SeniorityMid
Experience3+ yrs
DepartmentTechnology
Company size201–500 people
PostedMar 30, 2026 · 7mo ago
Verified live2w ago
At a glanceSummarised by Seekless from the posting.
Bachelor's degree in Computer Science, Mathematics, or a related Engineering/Science discipline
A minimum of 3 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
Skills
Python
PostgreSQL
MySQL
Linux
Benefits
Health insurance
Life insurance
Pension
Tuition reimbursement
About the company
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 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 3 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
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Competitive salary with discretionary annual bonus
•
Fully paid private medical, dental, vision with extended coverage and life insurance
•
Robust Pension Scheme, income protection, and salary exchange
•
Fully stocked kitchen and free on-site lunch daily
•
Season Ticket Loan Scheme
•
Tuition Reimbursement Program
•
Cycle to Work Scheme
Legal
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.