Perplexity AI is seeking a talented Search Rust Engineer to join our rapidly growing team, driving innovation in AI-powered search experiences. As a Search Rust Engineer, your main mission will be to relentlessly optimize performance - squeezing every millisecond of latency from our search stack, while implementing robust, scalable, and reliable systems.   Responsibilities: • Architect, build, and optimize ultra-low-latency search infrastructure using Rust • Profile and instrument services, continuously driving down response times at scale • Develop and maintain distributed backend components powering real-time search and retrieval • Collaborate closely with product and infrastructure teams to design systems that deliver best-in-class query performance • Apply advanced concurrency, memory management, and network programming patterns for maximum throughput • Monitor, debug, and tune production workloads to ensure reliability under demanding traffic • Contribute to code reviews and mentor peers in high-efficiency Rust development Requirements: • Deep expertise in Rust programming, especially for backend/search systems • Experience profiling and tuning high-load, low-latency distributed services • Strong understanding of systems design, Linux internals, and performance debugging • Background in cloud infrastructure - preferably AWS - and container orchestration • Track record of driving efficiency for search or data-intensive products • Ability to thrive in fast-paced environments and own critical product code • Passion for benchmarking, instrumentation, and continuous performance improvement