Member of Technical Staff - ML

About Us:

Modal provides the infrastructure foundation for AI teams. With instant GPU access, sub‑second container startups, and native storage, Modal makes it simple to train models, run batch jobs, and serve low‑latency inference. Companies like Suno, Lovable, and Substack rely on Modal to move from prototype to production without the burden of managing infrastructure.

We're a fast‑growing team based out of NYC, SF, and Stockholm. We've hit high 8‑figure ARR and recently raised a Series B at a $1.1B valuation. We have thousands of customers who rely on us for production AI workloads, including Lovable, Scale AI, Substack, and Suno.

Working at Modal means joining one of the fastest‑growing AI infrastructure organizations at an early stage, with many opportunities to grow within the company. Our team includes creators of popular open‑source projects (e.g. Seaborn, Luigi), academic researchers, international olympiad medalists, and experienced engineering and product leaders with decades of experience.

We are looking for strong engineers with experience in making ML systems performant  you are interested in contributing to open‑source projects and Modal’s container runtime to push language and diffusion models towards higher throughput and lower latency, we’d love to hear from you!

• 5+ years of experience writing high‑quality, high‑performance code.
• Experience working with torch, high‑level ML frameworks, and inference engines (vLLM or Tensor
  
  RT).
• Familiarity with Nvidia GPU architecture and CUDA.
• Experience with ML performance engineering (tell us a story about boosting GPU performance — debugging SM occupancy issues, rewriting an algorithm to be compute‑bound, eliminating host overhead, etc).
• Nice‑to‑have: familiarity with low‑level operating system foundations (Linux kernel, file systems, containers, etc).
• Ability to work in‑person, in our NYC, San Francisco or Stockholm office.