What are the responsibilities and job description for the Software Performance Engineer (C++) position at Zenith Search?
Passionate about C ? Obsessed with performance? Want to work with some of the smartest engineers in the world?
At this Leading Quantitative , we engineer systems where every nanosecond matters . Our Core Development team builds the ultra-low-latency infrastructure that powers global markets— tuned to perfection, optimized to the extreme.
This isn’t your typical software job. We’re talking :
Code that runs in microseconds
Performance optimizations at the CPU level
Deep OS, networking, and hardware engineering
A team of world-class engineers solving problems most never even encounter
What You’ll Do
Engineer high-performance, mission-critical C systems
Optimize for extreme speed—squeezing out every bit of performance
Tackle complex challenges in OS, networking, CPU architecture, and custom hardware
Work side by side with elite traders, researchers, and technologists
What We Look For
2 years of modern C (low-latency or performance-driven)
Expertise in OS internals, networking, CPU optimizations
Deep systems knowledge—multi-threading, object-oriented design
The drive to push the limits of what’s possible
Why this firm?
Engineering-first culture —zero bureaucracy, maximum impact
Speed, ownership, innovation —your work directly shapes markets
Elite team, top-tier rewards —we recognize and reward the best
Your code will move markets. Your optimizations will redefine performance.
If you live and breathe C , this is where you want to be.
Let’s talk. 🚀
