Performance Engineer

2 weeks ago

Sydney, New South Wales, Australia GQR Full time

As a Performance Engineer, you will play a pivotal role in analysing, optimising, and tuning the systems interaction with exchange systems holistically. Working closely with cross-functional teams, you'll be tasked with uncovering performance improvements across the trading stack. This role combines technical ingenuity with creative problem-solving to outsmart competition in one of the most demanding technical landscapes.

Your Core Responsibilities:

  • Analyse and understand the behaviour of complex systems using black-box techniques, identifying performance bottlenecks and optimisation opportunities. Designing and performing statistical experiments to explain emergent real world phenomena.
  • Design, implement, and test innovative ideas, experiments and technologies. Develop quick internal prototypes to evaluate performance and real-world applicability.
  • Liaise effectively with traders, software and hardware engineers, and infrastructure teams to share insights and implement solutions.
  • Analyse terabytes of network data to identify patterns, validate hypotheses, and optimise system performance.

Your Skills and Experience:

  • Strong understanding of computer internals, Linux systems, and networking. Familiarity with tools and techniques for reverse engineering, kernel tuning, system-level optimisation, and low-level network optimisation.
  • Proven commercial experience with Python and/or languages like C++ or Java.
  • Familiarity with low-latency hardware technologies, such as Intel CPUs, FPGA, and microwave links.
  • Understanding of complex, bespoke networks and networking stacks.
  • Hands-on experience with performance tuning, and system-level optimisations.
  • Experience with data and system analysis.
  • Capable of working autonomously while contributing to a multidisciplinary team. Always looking for ways to gain an edge.

While a resume is preferable we also welcome tentative inquiries from well-qualified persons. Utmost confidentiality and discretion are assured. If interested, please email

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