Base Salary
$266k - $445k/yr
Responsibilities
- Design and implement the low-level device runtime for OpenAI’s custom silicon.
- Build kernel-launch scheduling, command submission, queueing, dependency tracking, and completion handling.
- Manage device memory spaces, allocation, virtual-to-physical mappings, data movement, and lifetimes across concurrent workloads.
- Implement synchronization primitives, events, barriers, streams, and ordering guarantees.
- Define interfaces between the runtime, drivers, firmware, compiler-generated code, kernels, and higher-level execution systems.
- Use event-based, cycle-accurate simulators to develop, validate, debug, and performance-tune runtime behavior.
- Diagnose concurrency, memory-ordering, deadlock, race, correctness, and performance issues across software and hardware boundaries.
- Build tests, tracing, profiling, observability, and reproducible workloads for runtime correctness and performance.
- Partner with architecture and silicon teams to improve hardware-software interfaces based on workload and simulator insights.
Requirements
- Strong low-level systems programming experience in C, C++, Rust, or comparable environments.
- Experience building runtimes, drivers, firmware, operating-system components, accelerator software, or adjacent systems infrastructure.
- Understanding of concurrency, synchronization, asynchronous execution, queues, events, and memory-ordering semantics.
- Understanding of memory management, address spaces, DMA, caching, coherency, and hardware-software interfaces.
- Hands-on experience with event-based, cycle-accurate simulators or closely related architectural and performance models.
- Ability to reason quantitatively about scheduling, latency, throughput, utilization, contention, and resource tradeoffs.
- Skill debugging failures spanning software abstractions, device interfaces, and hardware behavior.
- Ability to collaborate across compiler, kernel, architecture, verification, firmware, and silicon teams.
- Candidates may need to meet legal-status requirements under U.S. export control laws and regulations.
About OpenAI
OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. AI is an extremely powerful tool that must be created with safety and human needs at its core. OpenAI is dedicated to putting that alignment of interests first — ahead of profit. To achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. Our investment in diversity, equity, and inclusion is ongoing, executed through a wide range of initiatives, and championed and supported by leadership. At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.