Software Engineer

Company: Simplex trading

Location: Chicago, IL

Salary: $125,000 - $200,000 a year

Type: Full-time

Posted: 2026-05-07

About this role

Our employees are truly our greatest asset. We have spent years building a team of talented, dedicated technologists, data-driven traders, and expert leaders with an emphasis on our core pillars:People, Process, Trading Edge, and Technology. Simplex is an in-office organization, helping to foster a collaborative and communicative culture.

Career Description

Simplex is looking for smart, curious, and driven individuals to join our technology team. Technology at Simplex is the core of the business. We are a technology company, specializing in high speed trading. We are looking for great people to work on all aspects of our trading system.

What will you be doing?

  • Work on our system from trading algorithm development, to high speed data analysis, and intelligent execution engine design
  • Design, build, and maintain efficient, reusable, and reliable C++ code on Linux
  • Other opportunities as assigned

Skills and Experience:

  • 4+ years experience working with a high level language (ex C++, Java, C#)
  • Some C++ experience is a plus
  • Linux/Unix exposure
  • Previous financial industry experience is a plus
  • Computer science or engineering degree or real world experience

Annual base salary ranges from $125,000 to $200,000, and is influenced by a number of factors, including qualifications and experience. This role is also eligible for an annual discretionary bonus, of which can be a significant portion of total compensation. This full time role is also eligible for other forms of compensation and benefits including health/dental/vision insurance, and 401(k) contributions.

Software Engineer pay range

$125,000 - $200,000 USD

Why us?

Founded in Chicago in 2004, Simplex is a leading, technology-driven, proprietary market-making firm. We work with the most advanced technology and software in the market, and we’ve continued to remain at the forefront of the industry by always focusing on innovation, automation, and data-driven analysis. We also leverage ...

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