{"id":69859,"url":"https://alion.io/job/tread-staff-backend-engineer-rails","title":"Staff Backend Engineer (Rails)","company":{"id":32779,"name":"Tread","domain":"tread.ai","url":"https://alion.io/company/tread","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":4,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":180000,"max":220000,"currency":"USD","period":"year","gross":null,"usd_annual":220000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agentic Workflows","optional":false},{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"Claude Code","optional":false},{"name":"Cursor","optional":false},{"name":"LLM","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"Ruby","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-05-06T00:02:31Z","employer_posted_date":"2026-05-06","last_verified_at":"2026-10-18T07:58:04Z","board_verified":true,"closed_at":null,"days_open":165,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":165},"description":"About Tread\nTread is an AI-native vertical SaaS platform transforming construction materials logistics-a massive, essential industry that moves the aggregate, asphalt, and concrete behind every road, bridge, and building. In March 2026, we crossed $1Bn in monthly delivered load value on the platform, and we’re at ~$XM ARR and growing fast. We are a lean Engineering organization with BE, FE, and Mobile all \nOur AI-powered platform serves Haulers, Producers, and Contractors-optimizing truck routing, loaded-mile delivery, and project planning while delivering exceptional customer service through personalized AI agents.\nWe’re a Series A company backed by Mucker Capital, and we’re building the team that will take us from $XM to $XXM+ ARR.\nThe Role\nWe're hiring backend engineers to own our systems end-to-end - the data models, workflows, and APIs behind dispatch, ticketing, settlements, and integrations. You'll work with frontend, mobile, product, and our Forward Deployed Engineers, and you'll have meaningful input on how the system should behave for scalability and performance.\nOur code has been ~100% AI-generated since March 2026. It's changed how the team works. We're building the software factory that turns customer, PM, and engineering input into safe deployable code. We expect the engineering team to be spinning up agents and managing the output rather than writing code by hand. While AI generates code here, engineers own the architecture, invariants, tests, review, security, and production behavior of everything we ship.\nStack\nRails API (Ruby), Postgres, REST. React on the web, Flutter on mobile. AWS.\nWhat You'll Do\nManage state machines across projects, orders, jobs, and loads.\n\nOperate a telematics layer with billions of rows tracking thousands of trucks across North America - live position, route history, mileage attribution.\n\nDesign geofencing and geo-driven event processing that turns raw GPS into structured dispatch events.\n\nBuild algorithmic dispatch and optimization, including automated load assignment.\n\nRun the payments stack that settles ~$1B/month in hauler payouts.\n\nShip customer-facing agentic workflows on our MCP and LLM features.\n\nBuild integrations with telematics providers, scale houses, ERPs, and other external systems.\n\nShape our internal AI tooling - shared agent skills, automated review, prompt and skill infrastructure.\n\nRequirements\nStrong Rails experience, or strong experience in a comparable backend framework and willingness to ramp fast.\n\nYou think in systems - interfaces, schemas, invariants, failure modes - and you've shipped designs that held up as the product scaled past their original assumptions.\n\nYou can model workflows where the source of truth is unreliable and the system still has to settle correctly.\n\nHigh ownership.\n\nDaily, opinionated use of AI coding tools.\n\nPreferred\nYou can debug production issues and explain root causes.\n\nBackground in logistics, ops, payments, or fintech.\n\nHow We Work\nWe deploy continuously, review PRs the same day, and invest in correctness up front so on-call stays light.\nAI tooling is part of the infrastructure. We maintain a shared internal skills library across Claude Code and Cursor, with namespaced agent skills the whole team uses for reviewing diffs and resolving PR feedback. We engineer the agent loop itself - skills, prompts, review pipelines. We invest in the dev environment and CI work that makes coding agents useful: devcontainers, fast feedback, pre-approved permissions, cloud agent support. Improving the SDLC is first-class engineering work.\nBefore You Apply\nThis isn't the right role if you want to:\nWrite only CRUD endpoints.\n\nWork from fully-specified requirements.\n\nTreat AI coding tools as a side experiment.\n\nHow to Apply\nSend something you've worked on where the backend had real complexity. A repo, a write-up, an architecture doc, a postmortem. One good thing beats a long resume.","description_format":"text","description_chars":3929,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Supply Chain & Logistics Software"],"lifecycle":[{"event":"open","at":"2026-05-06T00:02:31Z"}],"visa":[],"liveness":{"score":10,"band":"cold","label":"Long shot","p_open":1,"p_active":0.371,"p_room":0.28,"age_days":164,"expected_fill_days":36,"reasons":["conf:3","win:tail","crowd:"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":220000,"is_top_pay":false},"html_url":"https://alion.io/job/tread-staff-backend-engineer-rails","json_url":"https://alion.io/job/tread-staff-backend-engineer-rails.json","meta":{"generated_at":"2026-10-18T09:40:43Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":14341,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":32779},"rest":"https://alion.io/mcp/rest/get_company?id=32779"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftread-staff-backend-engineer-rails"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Ftread-staff-backend-engineer-rails"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Ftread-staff-backend-engineer-rails"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/tread-staff-backend-engineer-rails\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftread-staff-backend-engineer-rails"}]}