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Member of Technical Staff, Performance and Scale

Inferact

Inferact’s mission is to grow vLLM as the world’s AI inference engine and accelerate AI progress 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 infrastructure engineer to build the distributed systems that power inference at global scale. You’ll design and implement the foundational layers that enable vLLM to serve models across thousands of accelerators with minimal latency and maximum reliability. Tomorrow, deploying a frontier model at scale should be as straightforward as spinning up a serverless database. The complexity doesn’t disappear as it gets absorbed into the infrastructure you’re building.

Skills and Qualifications

Minimum qualifications:

  • Bachelor’s degree or equivalent experience in computer science, engineering, or similar.

  • Strong systems programming skills in Rust, Go, or C++.

  • Experience designing and building high-performance distributed systems at scale.

  • Understanding of network protocols and high-performance I/O.

  • Ability to debug complex distributed systems issues.

Preferred qualifications:

  • Experience with ML serving infrastructure and disaggregated inference architecture.

  • Familiarity with GPU programming models and memory hierarchies.

  • Knowledge of GPU interconnects (NVLink, InfiniBand, RoCE) and their performance characteristics.

  • Track record of improving system reliability and performance at scale.

Bonus points if you have:

  • Prior experience in supporting large‑scale model training or inference environments.

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.

  • Visa 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.

To apply for this job please visit jobs.ashbyhq.com.

Terms used in this posting

equity
Ownership stake in the company, usually in the form of stock options or RSUs, offered in addition to salary.

Working in San Francisco, California

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San Francisco, officially the City and County of San Francisco, is the fourth-most populous city in California and the 17th-most populous in the United States, with a population of 826,079 in 2025. Among U.S. cities with a population of 200,000 or more, San Francisco is ranked first by per capita income, second by population density, and sixth by aggregate income as of 2024. Some 4.6 million residents live in the city's metropolitan statistical area, which is the 13th-largest in the United States. Around 9.2 million live in the San Jose–San Francisco–Oakland combined statistical area, the fift

California is a U.S. state in the Western United States that lies on the Pacific Coast. It borders Oregon to the north, and Nevada and Arizona to the east; it also shares an international border with the Mexican state of Baja California to the south. With over 39 million residents across an area of 163,696 square miles (423,970 km2), it is the largest U.S. state by population and third-largest by

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National unemployment rate in US: 4.2%via World Bank

Recent seismic activity: 2 earthquakes (M4.5+) within 200km in the last 6 months — largest M5.6 near 11 km N of Redwood Valley, CA. via USGS

  • Elevation 38m (125 ft)

Source: Wikipedia (state)

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