about 18 hours ago
Mountain View, CA, USAMid Level / Senior
H1B Sponsor
Base Salary
$150k - $230k/yr
Responsibilities
- Lead post-training of LLMs across the full pipeline: continuous pre-training, SFT, and reinforcement learning.
- Design, build, and curate data for each training stage tailored to specific business needs.
- Collaborate with business and product stakeholders to convert requirements into training plans.
- Run large-scale training on mid-to-large GPU clusters using distributed-training techniques.
- Build and maintain evaluation and reward pipelines to measure model quality.
- Stay current with post-training research and implement promising techniques.
Requirements
- Hands-on LLM post-training experience with practical RL experience.
- Strong data engineering skills for ML, including data sourcing and preparation.
- Proven ability to train LLMs on mid-to-large GPU hardware.
- Strong fundamentals in PyTorch and familiarity with relevant frameworks.
- Solid understanding of tokenization, attention, and common failure modes in training.
- A bias toward fast iteration and business impact with strong communication skills.
Benefits
- Health, dental, and vision care for you and your family with 100% coverage for employees.
- Top-tier 401(K) plan with company matching.
- Paid time off and paid holidays.
- FSA, HSA, and commuter benefits programs.
- Team activity budget.