Algorithmic Trader

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 analytical and creative individuals to join our trading team.  Traders at Simplex work closely with our technology team to design and optimize algorithmic trading strategies based on deep knowledge of market microstructure, trading  dynamics, and data-focused understanding of pricing, risk management, and order flow.  An ideal candidate is collaborative, strongly self-motivated, and capable of detail-oriented troubleshooting, data analysis, and robust systems design.

What will you be doing?

• Design, troubleshoot, and optimize trading strategies and supporting pricing, risk management, and order execution modules
• Iteratively improve trading models and parameters through research and data-focused analysis
• Investigate new opportunities and avenues for firm market share growth or product expansion

Skills and Experience:

• At least one year professional experience in algorithmic trading, ideally equity or futures options
• A track record of solving challenging analytical problems and implementing robust solutions
• Firm understanding of statistics and probability, linear algebra, and calculus
• Proficiency with Python and/or R for research, data analysis, and statistical modeling
• Experience working with large datasets using relational databases, ideally SQL/MySQL
• Exposure to Linux/Unix beneficial

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 

HR@simplextrading.com