Staff Backend Engineer (Rails)

The role

Backend engineers will own systems including data models, workflows, and APIs for dispatch, ticketing, settlements, and integrations. You will manage state machines, telematics layers, and algorithmic dispatch while shipping agentic workflows.

What you will do

• Manage state machines across projects, orders, jobs, and loads.
• Operate a telematics layer tracking thousands of trucks across North America.
• Design geofencing and geo-driven event processing.
• Build algorithmic dispatch and optimization, including automated load assignment.
• Run the payments stack for hauler payouts.
• Ship customer-facing agentic workflows on MCP and LLM features.
• Build integrations with telematics providers, scale houses, ERPs, and other external systems.
• Shape internal AI tooling including shared agent skills and automated review.

Required qualifications

• Strong Rails experience, or strong experience in a comparable backend framework and willingness to ramp fast.
• Ability to think in systems including interfaces, schemas, invariants, and failure modes.
• Ability to model workflows where the source of truth is unreliable.
• High ownership.
• Daily, opinionated use of AI coding tools.

Nice to have

• You can debug production issues and explain root causes.
• Background in logistics, ops, payments, or fintech.

Before you apply

• Send something you've worked on where the backend had real complexity such as a repo, write-up, architecture doc, or postmortem.

About the company

Tread is an AI-native vertical SaaS platform transforming construction materials logistics. It is a Series A company backed by Mucker Capital.