C++ Software Engineer

Fintal Partners; Chicago (IL); On-site; USD 140,000 - 230,000; Full time

Job summary

Fintal Partners in Chicago seeks an experienced software engineer to design and optimize low-latency infrastructure for market data and order execution. You will build fault-tolerant, real-time systems that operate at scale, collaborating with traders and researchers to push latency and throughput to the limit.

Candidates should have strong modern C++ skills, solid Linux and networking fundamentals, and a track record in high-performance, distributed systems.

Qualifications

• Strong experience with modern C++ in performance-sensitive environments.
• Solid systems fundamentals (Linux, networking, CPU/memory).
• Experience with low-latency or distributed systems is a plus.

Responsibilities

• Design and optimize low-latency infrastructure for market data and order execution.
• Build fault-tolerant, real-time systems operating at scale.
• Profile and improve performance across latency-critical code paths.
• Work closely with traders and researchers on production systems.

Skills

C++

Low-latency

Linux

Networking

Distributed systems

Job description

Our client a leading quantitative trading firm that is continuing to invest heavily in its engineering organization, specifically across its low-latency trading infrastructure.

This team is focused on building and optimizing the core systems that power real-time trading across global markets, with a strong emphasis on performance, scalability, and reliability. Engineers work closely with traders and researchers to develop highly efficient, fault-tolerant systems that operate at significant scale, where even small improvements in latency or throughput can have meaningful impact.

What you’ll do:

• Design and optimize low-latency infrastructure for market data and order execution
• Build fault-tolerant, real-time systems operating at scale
• Profile and improve performance across latency-critical code paths
• Work closely with traders and researchers on production systems

Looking for:

• Strong experience with modern C++ in performance-sensitive environments
• Solid systems fundamentals (Linux, networking, CPU/memory)
• Experience with low-latency or distributed systems is a plus
• High ownership and strong problem-solving ability