CareerPlan

Member of Technical Staff, Post-Training & Applied Research

San FranciscoFull-time$275k–$315k2026-11-11
On-siteNo visa sponsorship

Core

Own the end-to-end post-training pipeline for enterprise AI models, including data curation, SFT, RL, evals, and distillation to deploy specialist models.

Role type

Senior IC Applied Research Engineer (Post-Training & RL)

Builds

Production-ready specialist AI models and evaluation harnesses for enterprise customers

Domain

Generative AI, Large Language Models, Reinforcement Learning

Deliverable

production ML models

Required skills

Post-training pipelines (SFT, RL, DPO, distillation), Reward function design, Evaluation strategy, Data curation & synthetic generation, PyTorch or JAX, Customer collaboration

Preferred skills

RL infrastructure at scale, Model quantization & speculative decoding, Agent post-training, Forward-deployed customer-facing experience

Technologies

PyTorch, JAX, NVIDIA GPUs, AMD Trainium, TPU

Responsibilities

Design reward functions with domain experts, Build trustworthy evaluation harnesses, Structure and generate datasets (including synthetic), Distill models to smaller edge-deployable versions, Optimize time-to-model, Embed with customers as forward-deployed researcher

Seniority

Senior, hands-on IC