C++ Software Engineer - Core Trading Technology

Quberesearchandtechnologies; Chicago (IL); On-site; USD 150,000 - 220,000; Full time

Benefits offered by this job

Competitive benefits

Discretionary bonuses

Job summary

Qube Research & Technologies (QRT) seeks an experienced C++/C software engineer to join the Core Trading Platform in Chicago. You will design and implement low-latency trading systems on Linux, focusing on throughput, reliability, and determinism, and work closely with traders and operations to optimize performance in live markets.

You will diagnose system behavior with profiling tools, apply expertise in TCP/UDP/multicast networking, and continually profile, benchmark, and optimize code to

Qualifications

• 2+ years of professional C++/C development on Linux.
• Strong understanding of TCP/UDP/multicast and low-latency networks.
• Experience building high-throughput distributed systems in production.
• Familiarity with scalable I/O models and concurrency.
• Proven debugging and performance-tuning skills.

Responsibilities

• 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.

Skills

C++/C development

Low-latency networking

Linux

Distributed systems

Profiling tools

Autonomy

Tools

epoll/io_uring

gdb

perf

tcpdump

wireshark

Job description

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.