Staff Engineer - Performance

About the Role

We are seeking a Staff Engineer – Performance with strong expertise in data path and I/O performance for large\-scale distributed file systems. This role focuses on analyzing, optimizing, and improving performance across the storage stack, from low\-level code paths to system\-wide behavior at scale. You will work closely with architects and cross\-functional teams to investigate complex performance issues, implement optimizations, and ensure high throughput and low latency in distributed systems. This role emphasizes hands\-on technical contributions, performance tuning, and data\-driven decision\-making to improve overall system efficiency and reliability. **Key Responsibilities:** ------------------------- * Contribute to the performance design of data path and I/O components in distributed file systems * Perform performance analysis, troubleshooting, and optimization of large\-scale, high\-performance file systems * Implement performance\-aware improvements across CPU, memory, storage, and network layers * Optimize performance\-critical file system code, primarily in C\+\+ * Apply best practices for performance measurement, profiling, benchmarking, and regression detection * Investigate and resolve complex system\-level performance issues * Collaborate with architects and senior engineers to incorporate performance considerations into system design * Work with cross\-functional teams to validate and meet performance goals across the stack * Participate in design reviews with a focus on performance implications * Share knowledge and support peers in adopting effective performance engineering practices **Requirements:** ----------------- * Accountable and highly motivated with solid people skills * 10\+ years’ experience system software development and complex problem resolution. * Deep understanding of distributed file systems and scale\-out storage architectures * Expert\-level knowledge of data path and I/O path design and optimization * Strong proficiency in C\+\+ with extensive experience in performance\-critical code * Proven expertise in performance measurement techniques, including profiling, tracing, benchmarking, and custom tooling * Strong foundation in distributed systems principles, including scalability, concurrency, and fault tolerance * Demonstrated experience optimizing file system or storage system code for performance at scale * Experience with high\-performance, high\-scale\-out file systems in production environments **What Success Looks Like** --------------------------- * Consistently delivers measurable improvements in throughput, latency, and scalability * Identifies and mitigates performance bottlenecks early in the development lifecycle * Produces reliable performance analysis that informs design and implementation decisions * Contributes to stable, repeatable performance testing and regression detection practices * Effectively collaborates with team members to meet performance goals across components * Builds and applies strong performance engineering expertise to improve code and system quality