Software Engineer, Systems

Job description

Meta is seeking a Staff Systems Software Engineer to design and build the foundational software infrastructure that powers Meta's products at massive scale. In this role, you will architect and implement complex systems software — spanning areas such as operating systems interfaces, runtime environments, low-level networking, storage, or platform services — that enables reliability, performance, and scalability across Meta's infrastructure. You will serve as a technical leader who drives engineering excellence, shapes the systems architecture roadmap, and partners across engineering disciplines to deliver high-impact solutions. Responsibilities: Architect and implement large-scale systems software components, including low-level platform services, runtime environments, or infrastructure frameworks that underpin Meta's product ecosystem - Lead the technical design of systems initiatives, evaluating trade-offs across performance, reliability, scalability, and maintainability to drive sound engineering decisions - Identify and resolve complex systems-level performance bottlenecks using profiling, instrumentation, and advanced debugging techniques including static analysis and trace-ba...