{"schemaVersion":"jobsearcher.job.v1","id":"c5f8b09668b36d6a0da58582","url":"https://jobsearcher.com/jobs/c5f8b09668b36d6a0da58582","canonicalUrl":"https://jobsearcher.com/jobs/c5f8b09668b36d6a0da58582","title":"Python Software Engineer","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.\nOld 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.\nAbout the Position\nWe 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.\nRequired Skills\nBachelor's degree in Computer Science, Mathematics, or a related Engineering/Science discipline\nA minimum of 2 years of professional Python experience in a production environment\nHigh proficiency in Python on Linux Platforms\nFamiliarity with relational databases (e.g. PostgreSQL, MySQL, etc.)\nExceptional written and verbal communication skills\nA collaborative team player with a knack for owning and driving exciting projects\nThrives in a fast-paced work environment, showcasing effective problem-solving abilities\nBenefits and Perks\nFully paid Medical, Dental, Vision, Disability, and Life Insurance\nFully stocked kitchen; free breakfast and lunch every day on-site\nTuition Reimbursement Program\n401(k) with employer match\nPaid Vacation, Sick, and Parental leaves\nCommuter and Flexible Spending Programs\nIn office M-F with 10 remote days per year\nBase Salary Range\n$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.\nOld 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.","company":"Old Mission","rawCompany":"old mission","city":"Chicago","state":"IL","isRemote":false,"isActive":false,"createdAt":"2026-08-13T14:03:06.333Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"},{"code":"15-1299.00","title":"Computer Occupations, All Other","slug":"computer-occupations-all-other"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Python Software Engineer","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.\nOld 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.\nAbout the Position\nWe 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.\nRequired Skills\nBachelor's degree in Computer Science, Mathematics, or a related Engineering/Science discipline\nA minimum of 2 years of professional Python experience in a production environment\nHigh proficiency in Python on Linux Platforms\nFamiliarity with relational databases (e.g. PostgreSQL, MySQL, etc.)\nExceptional written and verbal communication skills\nA collaborative team player with a knack for owning and driving exciting projects\nThrives in a fast-paced work environment, showcasing effective problem-solving abilities\nBenefits and Perks\nFully paid Medical, Dental, Vision, Disability, and Life Insurance\nFully stocked kitchen; free breakfast and lunch every day on-site\nTuition Reimbursement Program\n401(k) with employer match\nPaid Vacation, Sick, and Parental leaves\nCommuter and Flexible Spending Programs\nIn office M-F with 10 remote days per year\nBase Salary Range\n$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.\nOld 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.","datePosted":"2026-08-13T14:03:06.333Z","dateModified":"2026-08-13T14:03:06.333Z","hiringOrganization":{"@type":"Organization","name":"Old Mission","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Chicago","addressRegion":"IL","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"c5f8b09668b36d6a0da58582"},"url":"https://jobsearcher.com/jobs/c5f8b09668b36d6a0da58582"}}