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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Python Software Engineer - **Company:** Old Mission - **Location:** Greater London, UK - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Algorithmic Trading, Relational Databases, Linux, Python (Programming Language), PostgreSQL, MySQL, Information Technology - **Published:** August 26, 2026 - **Apply:** https://www.collegerecruiter.com/job/2815160781-python-software-engineer ## About the Role * 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 ## 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 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 * 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 ## Related Videos - [Optimizing Discovery: PostgreSQL's Role in Transforming GetYourGuide's Search](https://www.wearedevelopers.com/videos/1647-optimizing-discovery-postgresql-s-role-in-transforming-getyourguide-s-search) - [Enterprise Python: Software That Lives Long And Prosper](https://www.wearedevelopers.com/videos/946-enterprise-python-software-that-lives-long-and-prosper) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Discover the open source trio you didn’t expect: .NET and PostgreSQL on Linux](https://www.wearedevelopers.com/videos/2042-discover-the-open-source-trio-you-didn-t-expect-net-and-postgresql-on-linux) - [Tracking vehicles at scale](https://www.wearedevelopers.com/videos/1999-tracking-vehicles-at-scale) ## Related Articles - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [The 13 Best Python Libraries for Developers in 2025](https://www.wearedevelopers.com/magazine/371-the-13-best-python-libraries-for-developers-in-2025) - [7 good reasons why you should learn Python in 2021](https://www.wearedevelopers.com/magazine/19-7-good-reasons-why-you-should-learn-python-in-2021) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries)