C++ Software Engineer 3 – Low-Latency Trading Systems

About the role

Several Tier One proprietary trading firms in Sydney are hiring experienced C++ software engineers to build and optimise their low-latency trading systems. These are hands-on individual contributor roles where you write production C++ that runs directly in the market, across trading engines, exchange connectivity, market data handling, order management and risk systems. You will work directly with traders and researchers, with no ticket queue or product manager in between.

Key responsibilities

• Write production C++ that runs in the market, profiling, measuring and optimising code where performance matters in microseconds and nanoseconds.
• Own your systems end to end, with no external customers and no product roadmap set by sales.
• Turn trading ideas into fast, reliable production systems.

Required profile

• Several years of experience writing modern C++ in production.
• Solid understanding of how software runs on hardware: caches, memory layout, the cost of allocations and branches, and how to measure them.
• Experience with low-latency systems; kernel bypass or exchange protocols are a strong advantage but not essential.
• Engineers who care about performance, write precise code and take genuine ownership of what they ship.

Required skills

• Modern C++, including C++17 or C++20, templates, memory management and concurrency.
• Linux experience; exposure to networking and systems performance is ideal.

What we offer

• Market-leading compensation paid as base salary plus bonus, all in cash, with no diluted equity.
• Flat, technical structure with no politics.
• Unlimited technology budget for hardware and tooling that makes the system faster.
• Full relocation and visa sponsorship available for the right candidate, with particular interest in Australian expats coming home.