# Machine Learning Researcher at Rational

- Company: Rational (YC S26)
- What the company does: First Zero-human Accounting Firm. Backed by Y Combinator.
- Company website: https://rational.to
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco, CA, US
- Work setup: On-site
- Pay: $150K to $200K base salary per year (USD)
- Posted: 2026-08-28
- Apply by: 2026-10-12
- Apply: https://www.ycombinator.com/companies/rational/jobs/vRTNbJi-machine-learning-researcher
- Page: https://www.1752.vc/careers/jobs/rational-machine-learning-researcher/

## About the role

Push the modeling frontier for accounting AI. You'll design and evaluate models, run experiments, and figure out what's actually possible. You think rigorously about evals and love going deep on hard problems.

## What they're looking for

- Any (new grads ok) of experience
- US citizen/visa only
- Full-time Engineering role

Tags: Engineering