Low-Latency Performance Optimization Engineer

Westbury Partners; Sydney; On-site; AUD 180,000 - 240,000; Full time

Job summary

Westbury Partners in Sydney is seeking a Low-Latency Performance Optimization Engineer to analyse, experiment and optimise trading systems end to end. You will drive system-wide improvements by understanding how complex trading systems interact with exchanges and by identifying bottlenecks across software, hardware, and networks.

You will collaborate with traders, engineers and infrastructure specialists to prototype and test new technologies and optimisation strategies, turning milliseconds

Qualifications

• Experience with low-latency or high-performance systems.
• Strong problem-solving and analytical skills.
• Ability to work autonomously and drive performance improvements.

Responsibilities

• Performing black-box analysis and reverse engineering to uncover bottlenecks.
• Designing statistical experiments to explain real-world system behaviour.
• Prototyping and testing new technologies and optimisation strategies.
• Analysing terabytes of network and system data for actionable insights.
• Collaborating with traders, engineers, and infrastructure specialists.

Skills

Low-level systems

Reverse engineering

Data analysis

Autonomous problem solving

Trading technology

Tools

Python

C++

Linux

Networking

Big data

Job description

Low-Latency Performance Optimization Engineer

Westbury Partners – Sydney NSW

Full time

5d ago , from E-Financial Careers Australia

Our Client is a market leading innovative technology house that has operations in all continents round the globe. They are a renowned global employer of choice that provides one of the greatest working environments available in technology combined with the financial benefits of working in and around trading. Analyse, experiment, and optimise low-latency trading systems end to end, uncovering hidden performance gains through data-driven experimentation, reverse engineering, and close collaboration across software, hardware, and infrastructure teams globally competitive.

What You’ll Do:

Drive system-wide performance improvements by analysing how complex trading systems interact with exchanges, identifying inefficiencies, and designing innovative solutions in a highly competitive technical environment.

Your responsibilities will include:

• Performing black-box analysis and reverse engineering to uncover bottlenecks
• Designing statistical experiments to explain real-world system behaviour
• Prototyping and testing new technologies and optimisation strategies
• Analysing terabytes of network and system data for actionable insights
• Collaborating with traders, engineers, and infrastructure specialists

Why Join Us:

• Work at the cutting edge of low-latency and high-performance systems
• Tackle intellectually demanding problems with real-world impact
• Collaborate with multidisciplinary experts across software, hardware, and networks
• Operate in an environment that values experimentation and innovation

About You:

You have deep expertise in at least one low-level systems domain, enjoy autonomous problem-solving, and are driven to continuously find performance edges through analysis, experimentation, and technical creativity.

If you thrive on cracking complex systems and turning milliseconds into competitive advantage, this is where your curiosity and skill will truly matter.

#PerformanceEngineering #LowLatency #SystemsOptimisation #Linux #Networking #ReverseEngineering #Python #CPlusPlus #DataAnalysis #TradingTechnology #HighPerformanceSystems