Inference Performance Engineer

About the role Serving frontier models at scale requires solving novel systems problems at every layer of the stack. As an Inference Performance Engineer, you'll own the runtime that turns accelerators into a production serving system, optimizing throughput, latency, and cost across thousands of nodes. You'll work alongside hardware and compiler teams operating at the frontier of AI silicon design. What you'll do Build and improve the inference runtime Design scheduling, continuous batching, KV cache, and prefill/decode disaggregation Implement low-precision kernels and speculative decoding Drive throughput, latency, and cost per token Collaborate with hardware teams on kernels, operators, and graph optimizations Own the OpenAI-compatible API surface and serving protocol Build benchmarking, profiling, and regression infrastructure What you'll need BS in CS, EE, or related field, or equivalent experience Software engineering experience: Rust, Go, Python, or C++ Understanding of concurrency, memory, and tail latency Understanding of modern inference: transformers, attention, KV cache, batching, speculative decoding, quantization Experience with model serving frameworks: vLLM, TGI, SGLang, TensorRT-LLM, llama.cpp, or custom runtimes GPU or ASIC programming experience: CUDA, ROCm, Triton, or vendor-native toolchains Experience with low-precision inference (FP8, FP4, INT4) Profiling and benchmarking experience: Nsight, perf, custom harnesses What we offer Top-tier compensation structured to recognize and retain the best talent Meaningful equity Comprehensive medical, dental, vision, life, and disability insurance Parental leave for all new parents, including adoptive and surrogate journeys Flexible PTO Paid Holidays Relocation support Equal Employment Opportunity We're an Equal Opportunity Employer and do not discriminate on the basis of any protected status under applicable law.