Companies Simplex Trading

Simplex Trading

Chicago

120 Total Employees

51 Product + Tech Employees

Year Founded: 2004

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Engineering 3 Finance 1

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What's It Like to Work at Simplex Trading?

Updated on August 31, 2026

Simplex Trading Employee Reviews

Simplex is the perfect fit because of its streamlined, tech-first culture. I get to focus on what matters most without jumping through hoops.

Jonathan

Nothing ever feels stagnant here, and the freedom to explore and tackle new challenges as I see fit keeps me engaged each day.

Joe

Simplex has a great vibe: incredibly intelligent people solving some of the market's most complex issues in a collaborative environment. I also love the top tier office space!

Ben

I have a lot of free space to solve problems and devise solutions in a way that aligns with my own style and perspective

Paul

As a developer at Simplex, I get to dedicate most of my time to tackling interesting projects involving writing and debugging code. I value the company's efforts to keep meetings to a minimum, which greatly boosts our productivity levels.

Daniel

Never in my career have I been more excited to come to work and help make myself, our team and the organization better. I feel recognized and rewarded for my contributions and that empowers me to strive for even greater heights.

Kevin

What People Are Saying About Simplex Trading

Team Support: Colleagues are often seen as smart, humble, and highly collaborative, with tight trader–engineer pairing, open‑door access, and mentorship in an in‑office setting. Minimal bureaucracy and frequent in‑person interaction enable quick problem‑solving.
Benefits & Perks: Benefits include free employee medical coverage, dental/vision, 401(k) match, generous parental leave, tuition reimbursement, and a yearly charity match. Daily breakfast/lunch stipends, a stocked kitchen, gym access, and regular social events reinforce the on‑site experience.
Autonomy: Employees are encouraged to take ownership with a “choose your own adventure” style, few meetings, and the ability to ship quickly. Close trader–engineer cycles provide direct visibility to P&L impact and rapid learning.