Forward Deployed Engineer, Lead - LLM Post-training

8 months ago

San Francisco, CA, USA or New York, NY, USASenior / Staff+

H1B Sponsor

Responsibilities

Lead post-training engagements with enterprise customers to assess data and define training strategies.
Design and build reinforcement learning training environments and synthetic data generation pipelines.
Establish evaluation infrastructure to measure model performance against customer benchmarks.
Manage the data pipeline from raw customer data to training-ready datasets.
Deploy post-trained models across hybrid environments ensuring performance and reliability.
Mentor engineers and define best practices for applied AI work.

Hands-on post-training experience with large language models at scale.
Experience building synthetic data generation pipelines and reward models for reinforcement learning.
Deep understanding of evaluation methodology and training dynamics.
Practical experience with training infrastructure at scale, including multi-node GPU clusters.
Strong software engineering fundamentals with production-quality code experience.
6+ years of engineering experience, including 2+ years in a leadership role focused on LLM post-training.
Experience in customer-facing technical roles or a strong interest in developing this skill.
Self-starter with high agency and ownership in fast-paced environments.

Top-tier compensation with salary and equity structured to retain talent.
Comprehensive health, dental, vision, life, and disability insurance.
Fully paid parental leave for all new parents and financial support for family planning.
Paid time off and relocation support to optimize work-life balance.
Daily lunch and dinner provided, along with regular team off-sites and celebrations.