# Staff Backend Engineer (Rails) at tread.io

- Company: tread.io
- What the company does: Backed by Techstars.
- Company website: https://tread.io
- Type: Startups
- Level: Senior
- Location: San Francisco
- Work setup: Remote
- Pay: $180K to $220K base salary per year (USD)
- Posted: 2026-05-06
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/tread/c35ad3bd-ee36-433a-9183-17c12f59f3cb
- Page: https://www.1752.vc/careers/jobs/tread-io-staff-backend-engineer-rails/

## About the role

Manage state machines across projects, orders, jobs, and loads. Operate a telematics layer with billions of rows tracking thousands of trucks across North America — live position, route history, mileage attribution.

## What they're looking for

- Strong Rails experience, or strong experience in a comparable backend framework and willingness to ramp fast
- You think in systems — interfaces, schemas, invariants, failure modes — and you've shipped designs that held up as the product scaled past their original assumptions
- You can model workflows where the source of truth is unreliable and the system still has to settle correctly
- High ownership
- Daily, opinionated use of AI coding tools

Tags: Engineering