Mid & Sr. Systems Engineer
Mid & Sr. Systems Engineer
Chicago – Onsite
About The Role:
Join our Chicago-based Infrastructure team as a Mid- or Senior-Level Systems Engineer. You'll design, build, and scale the systems that power our trading platform-tackling tough performance challenges and optimizing how software meets hardware. Expect to work across messaging, monitoring, and high-throughput systems alongside talented engineers in a fast-moving, collaborative environment. This role reports to the Head of Infrastructure.
What You'll Do:
- Design, build, maintain high-throughput, low-latency systems software.
- Debug and resolve complex distributed systems issues.
- Scale and tune infrastructure for peak performance.
- Work autonomously on tough technical challenges with sound judgment on when to escalate.
- Collaborate with application and DevOps teams to deliver reliable trading infrastructure.
- Apply systems-level insight to guide architecture and design choices.
What We're Looking For:
- Bachelor's degree in Computer Science, Mathematics, Business, or related field (or equivalent experience)
- Senior: 4–5 years' experience writing system-level code in C#, C++, or similar
- Mid: 1–3 years' experience writing system-level code in C#, C++, or similar
- Strong grasp of OS internals (Windows or Linux) and networking fundamentals
- Experience with distributed, high-throughput systems
- Skilled at diagnosing and resolving complex technical issues
- Track record of problem-solving in fast-paced environments
- Hands-on mindset with the judgment to know when to collaborate
- Experience with kernel bypass, performance tuning, allocations, and GC highly valued
- Curiosity about how software interacts with hardware at a low level
- Excellent communication and teamwork skills
- Highly organized, detail-oriented, and proactive
- Must work onsite in our Chicago office
OOJ-1452G
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