Machine Learning Research Engineer

Posted yesterday

coders connectMillbrae (CA)

Computer and Information Research Scientists Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)

SENIORITY

Senior

SALARY

$200,000 per year

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About the role

We’re partnering with a frontier AI startup We’re working with an early-stage AI company that’s redefining how models learn to understandsubjective quality, from writing tone and design aesthetics to emotional resonance and creative expression. They’re collaborating with leading AI labs and building new methods that help models reason about creativity, taste, and quality. The founding team is small, highly technical, and deeply curious—building at the intersection ofresearch, product, and creativity .The Role As aMachine Learning Research Engineer, you’ll own end-to-end research cycles—designing, running, and analyzing post‑training experiments that help models evaluate style and subjective quality. You’ll collaborate directly with AI labs and creative experts, and have the opportunity to publish your work.

What You’ll Do:

Trainreward models, classifiers, and verifiersacross creative domains (writing, design, visual style)
Developbenchmarks and evaluation methodsfor subjective tasks
Runpost‑training (RLHF/DPO)experiments on open‑source and proprietary models
Collaborate withAI labsand creative experts on pilots and research projects
Publishfindings through blogs and whitepapers
What We’re Looking For2–6+ yearsin post‑training, ML research, or ML engineering
Strong experience with
Python, PyTorch, LLMs, andmultimodal models
Proven ability to run fast, iterative experiments from data to evaluation
Curiosity forsubjective AI —creativity, tone, and aesthetics
Low‑ego, collaborativemindset; thrives in a small, in‑person environment
BonusExperience working with post‑training data or data vendors (Scale, Labelbox, Snorkel, etc.)Personal interest in creative fields (design, art, writing, or similar)

Why Join:

Build at theedge of AI and creativity
Collaborate withfrontier research labs
Work closely with an inspiring founding team inJackson Square, San Francisco
Competitive salary and meaningful early‑stage equity

Compensation: $200K–$350K + 0.25–1.5% equity

Interview Process: We’re proud to partner with a founder who values creativity, collaboration, and curiosity above ego.

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