{"id":13076,"url":"https://alion.io/job/blacksmith-product-engineer","title":"Senior Product Engineer","company":{"id":19767,"name":"Blacksmith","domain":"blacksmith.sh","url":"https://alion.io/company/blacksmith-sh","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":87,"open_postings":15,"ghost_share":0.133,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":161,"computed_at":"2026-10-16T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["New York, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":200000,"max":300000,"currency":"USD","period":"year","gross":null,"usd_annual":300000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AI Agents","optional":false},{"name":"GitHub Actions","optional":false},{"name":"React.js","optional":false},{"name":"Zapier","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2025-04-30T00:21:42Z","employer_posted_date":"2025-04-30","last_verified_at":"2026-10-16T14:53:29Z","board_verified":true,"closed_at":null,"days_open":534,"trust":{"level":"ghost","repost_count":1,"flags":["stale","company_stale"],"days_open":534},"description":"About Blacksmith\nWe started by building infrastructure to run CI workloads really fast. Our first product helps companies run GitHub Actions substantially faster and cheaper by owning and operating our own global fleet of bare-metal machines rather than renting generic cloud VMs.\n\nToday, we orchestrate tens of millions of Firecracker VMs each week, running CI for 7,000+ companies and tens of millions in ARR. We’ve grown 10x so far in 2026.\n\nWe operate thousands of bare-metal machines across multiple regions, regularly schedule 100k+ vCPUs concurrently, and run a petabyte-scale Ceph cluster that we manage ourselves.\n\nWe’ve raised $58.5M from Seed to Series B, led by Google Ventures (GV) & Peak XV Partners, and we’re intentionally building a small, but exceptional team.\n\nBlacksmith was founded by a team with deep systems and scaling experience, including building search/ads infrastructure at Faire, and operating large distributed systems at Cockroach Labs. Our GTM is led by Jon Boyer, formerly Head of Sales at Zapier.\n\nWe're now extending the same CI infrastructure into a broader platform: running agent sandboxes at scale and building our own background coding agent on top of it.\n\nWhat you could work on\nBuild and evolve Codesmith, our background coding agent - designing the workflows, UI, and infrastructure that let engineers delegate coding tasks to AI and ship faster\n\nCreate tools that help engineers and AI agents debug flaky CI jobs: surfacing patterns in test failures, correlating logs with infrastructure signals, and making root cause analysis fast and intuitive\n\nWork closely with design to ship polished, high-performance product surfaces across our analytics and observability platform, where engineers go to understand their CI systems\n\nPrototype and iterate rapidly on AI-powered features - from natural language interfaces to automated fix generation - and own the full stack from prompt design to backend service to UI\n\nContribute to the architecture of the agent platform: how we run sandboxed workspaces, and orchestrate agent sessions\n\nYou are a good fit if you\nHave strong CS fundamentals and a deep understanding of React and modern frontend development.\n\nCan work closely with design to build polished, high-performance UIs - and aren’t afraid to go deep on browser performance, rendering bottlenecks, or complex component architecture.\n\nHave 5+ years of software development experience.\n\nEnjoy working in person 5 days a week in NYC.\n\nEnjoy working at a very early-stage startup and are comfortable with ambiguity.\n\nBonus\nYou’ve dabbled in your own side hustles or start-up projects.\n\nYou’re comfortable creating new processes and iterating on them quickly.\n\nCompensation and benefits\nMedical, Vision, and Dental insurance.\n\nCompetitive base + equity.\n\n401K match.\n\nUnlimited PTO.\n\nAnnual offsite.\n\nEarly-exercise stock options\n\n12 weeks fully paid parental leave (US)","description_format":"text","description_chars":2911,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["401k plan","Dental insurance","Equity","Parental leave","Stock options","Unlimited PTO"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["DevOps & Platform Engineering","Cloud Platforms (IaaS & PaaS)"],"lifecycle":[{"event":"open","at":"2025-04-30T00:21:42Z"},{"event":"close","at":"2026-08-13T11:20:38Z"},{"event":"reopen","at":"2026-09-10T16:00:21Z"}],"visa":[],"liveness":{"score":8,"band":"cold","label":"Long shot","p_open":1,"p_active":0.3,"p_room":0.28,"age_days":534,"expected_fill_days":161,"reasons":["conf:0","ghost","win:tail","crowd:"],"computed_at":"2026-10-16T05:45:00Z"},"pay":{"stated_usd_annual":300000,"is_top_pay":true},"html_url":"https://alion.io/job/blacksmith-product-engineer","json_url":"https://alion.io/job/blacksmith-product-engineer.json","meta":{"generated_at":"2026-10-16T18:38:30Z","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":3930,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"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":19767},"rest":"https://alion.io/mcp/rest/get_company?id=19767"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fblacksmith-product-engineer"},{"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%2Fblacksmith-product-engineer"},{"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%2Fblacksmith-product-engineer"},{"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/blacksmith-product-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fblacksmith-product-engineer"}]}