Request Technology, LLC
C++ Trading Systems Developer
Downers Grove, Illinois, US
Role snapshot
Request Technology, LLC is hiring a C++ Trading Systems Developer on a full-time basis. This is an on-site role based in Downers Grove, Illinois, US.
- Company
- Request Technology, LLC
- Location
- Downers Grove, Illinois, US
- Work mode
- On-site
- Job type
- Full-time
- Experience
- 5+ years
- Posted
- Nov 6, 2026
Who this role suits
Practitioners with a few years behind them who can work independently, make trade-offs and help newer teammates.
How to prepare your application
- Prepare examples of decisions you drove, how you measured the result, and how you worked with other teams.
- Be ready to discuss trade-offs and scope, not only the tools you have used.
- Read what Request Technology, LLC publishes about its product or team, so you can say clearly why this role and this company.
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About the role
***This role requires working onsite 4 days each week***
***We are unable to sponsor for this permanent full-time role***
***Position is Bonus eligible***
Prestigious Financial Firm is currently seeking a C++ Trading Systems Developer with industry experience. Candidate will design, build, and optimize our high-performance, low-latency trading infrastructure and strategies. This is a hands-on engineering role working directly with traders, quants, and other technologists to deliver cutting-edge solutions in global markets.
Responsibilities:
• Architect, develop, and maintain low-latency trading applications and market access systems in modern C++.
• Collaborate with traders, quants, and researchers to implement, refine, and evaluate algorithmic and quantitative trading strategies.
• Implement new trading algos and research ideas in the internal core trading framework.
• Design and implement exchange connectivity, order routing, and market data feed handlers across multiple asset classes and venues worldwide.
• Optimize systems for speed, throughput, scalability, and reliability, using profiling, performance tuning, and latency analysis.
• Participate in all phases of the software development lifecycle, from requirements and design to testing, deployment, and production support.
• Research and recommend new technologies, tools, and methods to improve performance, scalability, and code quality.
Qualifications:
• A degree in Computer Science, Engineering, Mathematics, Physics, or a related STEM field (Bachelor’s, Master’s, or PhD).
• At least 5 years of experience developing performance-critical software in modern C++ (C++14 or newer).
• Strong knowledge of multi-threading, memory management, and network/socket programming (TCP/UDP).
• Familiarity with Linux/Unix environments and network tools (Wireshark, TCPDump).
• Strong organizational and software architecture skills with an eye for performance profiling and optimization.