# Staff Machine Learning Engineer at BILL

- Company: BILL
- What the company does: BILL (NYSE: BILL) provides financial automation software for small and midsize businesses (SMBs), streamlining payables, receivables, and expense management. Backed by Emergence Capital.
- Company website: https://bill.com
- Type: Startups (AI role)
- Level: Senior
- Location: United States
- Work setup: On-site
- Posted: 2026-09-03
- Apply by: 2026-10-18
- Apply: https://www.bill.com/job?6180061004&gh_jid=6180061004
- Page: https://www.1752.vc/careers/jobs/bill-staff-machine-learning-engineer/

## About the role

Join BILL's AI Product Engineering team and help shape the future of intelligent financial automation. BILL processes millions of financial documents every month, and machine learning sits at the core of how we turn unstructured documents into accurate, actionable financial data. We are looking for a Staff ML Engineer to raise the technical bar across our AI/ML organization, someone who is equally comfortable getting hands-on with model training code and setting the multi-quarter technical direction for a team.

## What they're looking for

- Requires a minimum of 8 years of related experience with a Bachelor's degree, or 6 years and a Master's degree, or a PhD with 3 years of experience, or equivalent experience
- Direct experience fine-tuning LLMs, including supervised fine-tuning, LoRA/QLoRA, preference optimization (DPO/RLHF), and structured-output training, and taking fine-tuned models to production at scale
- Research-oriented mindset with shipping discipline: you follow the literature, form hypotheses, and run disciplined experiments, but you measure success by what reaches production and moves business metrics

Tags: Engineering