Financial Services

C++ Software Engineer - Core Trading Technology

Chicago, ILOnsiteFull Time$150,000–$220,000 /yrPosted 2 months agoVisa sponsorship available

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Required skills

C++
Linux
multithreading
modern C++
TCP
UDP
multicast
low-latency
high-throughput
distributed systems

Nice to have

Python
Bash
CI/CD
observability
electronic trading
exchange-facing systems

Role summary

Qube Research & Technologies (QRT) seeks a C++ Software Engineer for its Core Trading Platform team. This role involves designing, implementing, and operating ultra-low latency, high-performance distributed systems for global real-time trading on Linux. Responsibilities include optimizing system behavior, reducing latency, ensuring reliability, and analyzing system performance using low-level tools. The ideal candidate will have 2+ years of C++/C development experience on Linux, strong expertise in low-latency networking protocols, and experience with distributed systems and performance troubleshooting. Familiarity with scripting, CI/CD, observability, and electronic trading systems is advantageous.

Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology- and data-driven group implementing a scientific approach to investing. Combining data, research, technology, and trading expertise has shaped our collaborative mindset, which enables us to solve the most complex challenges. QRT’s culture of innovation continuously drives our ambition to deliver high-quality returns for our investors.

You will join the Core Trading Platform team, which is responsible for the design and operation of QRT’s global electronic trading infrastructure. This team builds and maintains the ultra-low latency systems that underpin real-time trading, managing performance-critical workflows across global markets. You will work closely with developers, traders, and operations to optimise system behaviour, reduce latency, and ensure platform reliability at scale.

Your future role within QRT

Design and implement low-latency trading systems on Linux, focused on throughput, reliability, and determinism

Engineer scalable, high-performance distributed systems that support global real-time trading workflows

Analyse system behaviour using low-level tools such as packet captures, core dumps, and runtime profilers

Apply deep expertise in TCP, UDP, and multicast to understanding trade-offs in short-haul vs long-haul networks

Continuously profile, benchmark, and optimise code to reduce latency and increase throughput

Engage across the full software lifecycle: from architecture to debugging in live trading environments

Your present skillset

2+ years of professional C++/C development experience on Linux, including modern C++ and multithreading

Strong expertise in TCP, UDP, multicast, and performance trade-offs in low-latency networks

Experience building and operating high-throughput distributed systems in production

Familiarity with scalable I/O models (e.g., epoll, io_uring), lock-free structures, and concurrent programming

Deep attention to detail with a rigorous approach to performance troubleshooting and optimisation

Proficiency in system-level tools (e.g., gdb, perf, tcpdump, valgrind, wireshark)

Comfortable working autonomously and taking ownership from problem to solution

Scripting experience (e.g., Python, Bash) and exposure to CI/CD or observability tooling is a plus

Prior exposure to electronic trading or exchange-facing systems is advantageous

Base salary range for this position is $150,000 to $220,000 per year.

QRT Total Compensation includes discretionary performance-based bonuses and a competitive benefits package.

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C++ Software Engineer - Core Trading Technology

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Required skills

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