{"id":2425342,"url":"https://alion.io/job/runrehearsals-founding-engineer","title":"Founding Engineer","company":{"id":4399016,"name":"runrehearsals","domain":"runrehearsals.com","url":"https://alion.io/company/runrehearsals","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Gem","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"middle","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":140000,"max":500000,"currency":"USD","period":"year","gross":null,"usd_annual":500000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Databricks","optional":false},{"name":"Gemini","optional":false},{"name":"OpenAI","optional":false},{"name":"React.js","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-05-25T16:02:18Z","employer_posted_date":"2026-05-25","last_verified_at":"2026-10-14T03:08:57Z","board_verified":true,"closed_at":null,"days_open":141,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":141},"description":"ABOUT REHEARSALS\nThe team is ex-DeepMind, ex-Databricks, and ex-Stanford. We launched the first Gemini API, designed Google Lens, post-trained state-of-the-art coding models, started companies that have been acquired, and been awarded more than 25 patents.\nRehearsals is the only company that builds AI twins of real people. Companies use our technology to predict consumer behavior and reactions at scale, in hours instead of months, with 92% accuracy to what real people would do.\nWe are backed by a16z (Speedrun Fund), Factorial Fund, and 25madison, along with angel investors from DeepMind and OpenAI including Logan Kilpatrick. Revenue is growing 3x month over month. We work with category leaders across CPG, luxury goods, consumer technology, and gaming.\nYou will be on the founding team, building your life's work. We hire for four things: ownership, agency, craft, and conscientiousness.\nWHAT YOU'LL DO\nBuild the full-stack experience of how the world will experience the future of AI simulations in a modern web dev stack (TypeScript, Next, React).\nWork on our data stack, including being the in-house expert on data scraping.\nRun experiments to improve our revealed preference and simulation engines.\nWork on infrastructure such as research tooling, CI/CD, and internal code review agents that scales our impact.\nWe are particularly interested in engineers with strong foundations who have a particular aptitude in either data or frontend. This could include either or both of:\nArchitecting extensible and highly performant systems for processing and storing massive datasets at scale.\nDriving the development of beautiful frontends by creating a library of thoughtfully composed, reusable components.\nUltimately your overall capability is the most important thing. Amazing generalists are always exciting to us.\nWHAT WE'RE LOOKING FOR\nBachelor's degree in Computer Science, Math, Physics, or equivalent experience.\n3+ years of experience (open source contributions count).\nA track record of shipping quality software and infrastructure in production.\nAbility to work 5 days in-person in our NYC office.\nPERKS & BENEFITS\nHighly competitive pay and equity.\nM4 MacBook Pro.\nTop-tier healthcare, dental, and vision.\n$1,000/month for food and a gym membership.\nRelocation if you are moving to New York.\nCULTURE\nWe are not a 40-hour-a-week company. Everyone here works hard, moves fast, and takes full ownership. We care deeply about what we are building and about building it together.\nBONUS POINTS\nWant to stand out? Go to rehearsalsresearch.com and go through one of our interviews before we talk. It is the fastest way to feel how we turn real people into twins. Come tell us what you thought.\nCOMPENSATION\nThe base pay range for this role is $140,000 to $500,000 per year.","description_format":"text","description_chars":2783,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Apple Macbook","Equity","Gym membership"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":true,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-13T07:35:20Z"}],"visa":[],"liveness":{"score":8,"band":"cold","label":"Long shot","p_open":1,"p_active":0.271,"p_room":0.28,"age_days":141,"expected_fill_days":24,"reasons":["conf:2","win:tail","crowd:"],"computed_at":"2026-10-14T05:52:41Z"},"pay":{"stated_usd_annual":500000,"is_top_pay":true},"html_url":"https://alion.io/job/runrehearsals-founding-engineer","json_url":"https://alion.io/job/runrehearsals-founding-engineer.json","meta":{"generated_at":"2026-10-14T05:52:41Z","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":7440,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-15T00:00:00Z"}},"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":4399016},"rest":"https://alion.io/mcp/rest/get_company?id=4399016"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Frunrehearsals-founding-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%2Frunrehearsals-founding-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%2Frunrehearsals-founding-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/runrehearsals-founding-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Frunrehearsals-founding-engineer"}]}