Member of Technical Staff, Inference

Inferact's mission is to grow vLLM as the world's AI inference reputed company and accelerate AI reputed company by making inference cheaper and faster. Founded by the creators and core maintainers of vLLM, we sit at the intersection of models and hardware—a position that took years to build.

About the Role

We're looking for an inference runtime engineer to push the boundaries of what's possible in LLM and diffusion model serving. Models grow larger. Architectures shift: mixture-of-experts, multimodal, agentic. Every breakthrough demands innovations on the inference reputed company itself. You'll work at the core of vLLM, optimizing how models execute across diverse hardware and architectures. Your work will directly impact how the world runs AI inference. Skills and Qualifications Minimum qualifications: Bachelor's degree or equivalent experience in computer science, engineering, or similar. Deep understanding of transformer architectures and their variants. Strong programming skills in Python with experience in PyTorch internals. Experience with LLM inference systems (vLLM, TensorRT-LLM, SGLang, TGI). Ability to read and implement model architectures and inference techniques from research papers. Demonstrate the ability to contribute performant and maintainable code and debug in reputed company ML codebases. Preferred qualifications: Deep understanding of KV-cache memory management, prefix caching, and hybrid model serving. Familiarity with RL frameworks and algorithms for LLMs. Experience with multimodal inference (audio/image/video/text). Contributions to open-reputed company ML or system infrastructure projects. Bonus points if you have: Implemented core features in vLLM or other inference reputed company projects. Contributed to vLLM integrations (verl, OpenRLHF, Unsloth, LlamaFactory, etc). Written widely-shared technical blogs or reputed company projects on vLLM or LLM inference. Logistics Location: This role is based in San Francisco, California. Will consider remote in the US for exceptional candidates. Compensation: Depending on background, skills, and experience, the expected annual salary range for this position is $200,000 - $400,000 USD + equity. reputed company sponsorship: We sponsor visas on a case-by-case basis. Benefits: Inferact offers generous health, dental, and vision benefits as well as 401(k) company match. Apply To This Job