C

AI/ML Engineer and Researcher

closr • San Francisco Bay Area
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Closr is recruiting for multiple AI/ML roles across various funded startups ranging from seed to Series D. Responsibilities include building LLM-powered products, agents, and ML infrastructure for high-growth companies. Candidates require 2 to 8+ years of experience in ML/AI systems with strong Python and PyTorch skills.

Key Highlights
Recruiting for 70+ open roles across various funded AI startups
Opportunities range from Founding AI Engineers to Research Scientists
Roles available in major US hubs and some remote options
Key Responsibilities
Build and ship LLM-powered products or agents to production including tool calling, RAG, and structured outputs.
Develop and optimize ML infrastructure, including distributed training, inference optimization, and CUDA/GPU work.
Conduct research and implementation for post-training, RL, and evaluations.
Take end-to-end ownership of technical projects in a fast-moving, early-stage environment.
Technical Skills Required
Python PyTorch Machine Learning
Benefits & Perks
Base salary from $150K to $400K+
Equity up to 2% for founding roles
Visa transfers for many roles
Nice to Have
Big-tech or top AI lab experience
Founding or YC background
Publications at NeurIPS, ICML or ICLR
PhD for research roles

Job Description

We're hiring AI/ML Engineers and Researchers for high-growth AI startups in the US 🚀

Closr is recruiting for 70+ open AI/ML roles at funded companies, from seed-stage founding teams to Series D. Their investors include Sequoia, Lightspeed, Greylock and others.

Roles we're hiring for

  • Applied AI / AI Engineer (LLMs, agents, evals)
  • Machine Learning Engineer
  • ML Infrastructure / MLOps (training, inference, GPU systems)
  • Research Scientist / Research Engineer (post-training, RL, evals)
  • Robotics ML / Perception Engineer
  • Founding AI Engineer and Member of Technical Staff

Locations

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