Group One Trading, a proprietary trading firm specializing in options market making and liquidity provision, is seeking a Software Developer Intern in Chicago, Illinois, on-site. You will be mentored by senior developers and gain hands-on experience with electronic trading systems built on the .NET platform using C#. The system combines an information-dense user interface with a high-throughput, low-latency parallel core, service-oriented architecture, and interfaces to exchanges' market data and execution systems. This internship offers exposure to equity options trading across a multi-platform software stack, with opportunities to learn from a diverse team across locations. Requirements include active enrollment as a student pursuing a BS, MS, or Ph.D. in Computer Science, Computer Engineering, or a related technical field; familiarity with C-style object-oriented languages (C#, Java, C++, Objective-C); strong computer science fundamentals; and a desire to learn and grow as a software developer. Within one month you will complete your initial orientation and become familiar with our environment; within three months you will contribute to projects with real implications for our traders and the company. Benefits include a competitive compensation package with company-paid housing or housing stipend, individualized mentorship, daily fruit and snacks, casual dress, social events, and reimbursement of in-person interview travel and childcare expenses.

Group One Trading, a proprietary trading firm specializing in options market making and liquidity provision, is seeking a Software Developer Intern in Chicago, Illinois, on-site. You will be mentored by senior developers and gain hands-on experience with electronic trading systems built on the .NET platform using C#. The system combines an information-dense user interface with a high-throughput, low-latency parallel core, service-oriented architecture, and interfaces to exchanges' market data and execution systems. This internship offers exposure to equity options trading across a multi-platform software stack, with opportunities to learn from a diverse team across locations. Requirements include active enrollment as a student pursuing a BS, MS, or Ph.D. in Computer Science, Computer Engineering, or a related technical field; familiarity with C-style object-oriented languages (C#, Java, C++, Objective-C); strong computer science fundamentals; and a desire to learn and grow as a software developer. Within one month you will complete your initial orientation and become familiar with our environment; within three months you will contribute to projects with real implications for our traders and the company. Benefits include a competitive compensation package with company-paid housing or housing stipend, individualized mentorship, daily fruit and snacks, casual dress, social events, and reimbursement of in-person interview travel and childcare expenses.