Optiver seeks a Principal C# Software Engineer in Sydney to design and develop high-performance desktop applications. This role emphasizes collaboration with traders and engineers to build responsive user interfaces that handle real-time data effectively, impacting trading performance. Ideal candidates should have over 7 years of experience with C# and .NET, and a strong educational background. The position comes with excellent perks including a performance-based bonus and professional growth opportunities.#J-18808-Ljbffr