# Member of Technical Staff, Post-Training at Handshake

- Company: Handshake
- What the company does: Backed by Kleiner Perkins and Lightspeed.
- Company website: http://www.joinhandshake.com/
- Type: Startups
- Level: Senior
- Location: Remote (USA)
- Work setup: Remote
- Pay: $200K to $350K base salary per year (USD)
- Posted: 2026-09-23
- Apply by: 2026-11-07
- Apply: https://jobs.ashbyhq.com/handshake/bd6c7320-2bfc-4015-8ee1-5b0997b6a9d1
- Page: https://www.1752.vc/careers/jobs/handshake-member-of-technical-staff-post-training-2/

## About the role

We are hiring a Member of Technical Staff, Post-Training to help define and build this new organization. This is a broad, high-ownership role for researchers who build. You may come from research science, research engineering, machine learning engineering, or a closely related background; what matters is the ability to reason deeply about model improvement and turn that reasoning into reliable systems.

## What they're looking for

- 3+ years of demonstrated strength in post-training, fine-tuning, or model-evaluation work. Relevant experience may include RL, SFT, LoRA/PEFT, full fine-tuning, RLHF, DPO, PPO, reward modeling, or training environments
- Strong Python skills and the ability to write clean, efficient, scalable software
- Hands-on experience with modern ML tooling, particularly PyTorch and large-scale data, training, or evaluation workflows
- Sound experimental judgment: you can form hypotheses, choose meaningful metrics, diagnose failures, and distinguish signal from noise
- Experience designing systems—not only implementing specifications—including the ability to make tradeoffs around quality, scale, reliability, and reuse
- Comfort operating in an ambiguous, fast-moving environment with substantial ownership

Tags: Engineering