Software Engineer
Confirmed on the employer's own hiring board on Sep 29, 2026. First seen by Alion on Nov 20, 2024. Simplex Trading scores B on the Alion truth index.
Our employees are 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 our experience and expertise to make strategic investments and capitalize on opportunities in the venture capital markets with promising, early-stage financial and technology start-ups.
PLUS, the goods!
- Benefits: Excellent a la carte Medical/Dental/Vision (free employee coverage!), 401(k) match, generous parental leave!
- The Office: The kitchen is stocked with snacks, and beverages; you also have daily stipends for breakfast and lunch!
- Tuition Reimbursement: As an investment in our employees’ careers and the company’s future, we offer educational assistance to provide employees with professional development opportunities that increase their skills and enhance their contributions to the organization!
- Employee Discounts: To gyms, national brands, and more!
- Building: We are located in the Federal Reserve building. As a tenant, you have access to a building gym and a full cafeteria. We are easily accessible to all public transportation.
- Charity Match: We match up to $2,000 a year in donations to the charities of your choice!
- Fun Events: In-person happy hours, celebrations throughout the year, game nights, video game fun, and so much more!
Simplex is an Equal Opportunity Employer. Simplex and its recruitment partners may use artificial intelligence (AI) tools to support certain aspects of the recruiting and hiring process. Final hiring decisions are made by humans. For all job postings, Simplex may use AI to review and analyze applications, resumes, interviews, and applicant responses. Simplex complies with applicable federal and state laws governing AI use. Applicants may still request reasonable accommodations. For more information related to AI or to request an accommodation, please contact [email protected].