Simplex Trading

Business Intelligence Accountant

Business Intelligence Analyst

Bachelor’s in Accounting, Finance, Information Systems, or related field; 3-5 years in accounting/financial analysis; SQL proficiency; GAAP knowledge; experience automating finance processes.

Senior Accountant

Bachelor’s degree in Accounting/Finance; 4-7 years accounting experience in broker-dealer/financial services; GAAP knowledge; CPA active; willing to sit for FINRA licensing exams.

Infrastructure Engineer

3+ years as System or Linux administrator; strong Linux networking; scripting in Python/Perl/Bash; familiarity with server tools; ability to lift 40-50 lb; on-site in Chicago area.

Automation Engineer

3+ years as Automation Engineer or similar; Linux proficiency; strong Python; Bash and SQL knowledge; experience with automation tools (Ansible, Docker) a plus; collaboration with IT and software teams.

Strategy and Operations Manager

3-5 years in analytical role; SQL; BI tools; process automation experience; bachelor’s degree; strong communication and discretion.

Software Engineer

4+ years in high-level languages (C++, Java, C#); Linux/Unix experience; some C++; prior financial industry experience a plus; CS or engineering degree or equivalent experience.

FPGA Engineer

FPGA engineer with Verilog/SystemVerilog, timing closure, low-latency FPGA design; Python and ASIC/financial markets experience a plus.

Title	Location	Date
Business Intelligence Accountant Full Time · $100K-$120K · 3+ YOE Chicago, Illinois, United States · Onsite	Chicago, Illinois, United States Onsite	Apr 22, 2026
Senior Accountant Full Time · $130K-$150K · 4+ YOE Chicago, Illinois, United States · Onsite	Chicago, Illinois, United States Onsite	Apr 21, 2026
Infrastructure Engineer Full Time · $125K-$200K · 3+ YOE Chicago, Illinois, United States · Hybrid	Chicago, Illinois, United States Hybrid	Apr 10, 2026
Automation Engineer Full Time · $125K-$175K · 3+ YOE Chicago, Illinois, United States · Onsite	Chicago, Illinois, United States Onsite	Apr 10, 2026
Strategy and Operations Manager Full Time · $125K-$175K · 3+ YOE Chicago, Illinois, United States · Onsite	Chicago, Illinois, United States Onsite	Feb 10, 2026
Software Engineer Full Time · $125K-$200K · 4+ YOE Chicago, Illinois, United States · Onsite	Chicago, Illinois, United States Onsite	Nov 20, 2024
FPGA Engineer Full Time · $125K-$200K Chicago, Illinois, United States · Onsite	Chicago, Illinois, United States Onsite	Nov 20, 2024

Activities	Proprietary tradingOptions market makingAlgorithmic trading developmentLiquidity provisionQuantitative investment management
Headquarters	US
Industries	Financial ServicesFinTech
Name	Simplex Trading
Employees	131
Type	Private
Parent Company	Simplex Holdco
Subsidiaries	Simplex TechnologiesMatrix Executions
Tagline	A technology-driven proprietary firm specializing in options market making.
Founded	2,004
Website	simplextrading.com

Simplex Trading

About Simplex Trading