{"id":43736,"url":"https://alion.io/job/datologyai-software-engineer-full-stack","title":"Software Engineer, Front-end","company":{"id":9100,"name":"DatologyAI","domain":"datologyai.com","url":"https://alion.io/company/datologyai","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"C","score":56,"open_postings":11,"ghost_share":0.727,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":48,"computed_at":"2026-10-16T05:45:00Z"}},"role":"Frontend","role_family":"Frontend","seniority":"middle","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Mateo, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":180000,"max":300000,"currency":"USD","period":"year","gross":null,"usd_annual":300000},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"JavaScript","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Synthetic Data","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-03-18T22:44:37Z","employer_posted_date":"2026-03-18","last_verified_at":"2026-10-16T07:51:32Z","board_verified":true,"closed_at":null,"days_open":211,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":211},"description":"About the Company\nModels are what they eat. But a large portion of training compute is wasted training on data that are already learned, irrelevant, or even harmful, leading to worse models that cost more to train and deploy.\nAt DatologyAI, we’ve built a state of the art data curation suite to automatically curate and optimize petabytes of data to create the best possible training data for your models. Training on curated data can dramatically reduce training time and cost (7-40x faster training depending on the use case), dramatically increase model performance as if you had trained on >10x more raw data without increasing the cost of training, and allow smaller models with fewer than half the parameters to outperform larger models despite using far less compute at inference time, substantially reducing the cost of deployment. For more details, check out our recent research on synthetic data scaling (BeyondWeb) and pretraining with domain-specific data (The Finetuner’s Fallacy).\nWe raised a total of $57.5M in two rounds, a Seed and Series A. Our investors include Felicis Ventures, Radical Ventures, Amplify Partners, Microsoft, Amazon, and AI visionaries like Geoff Hinton, Yann LeCun, Jeff Dean, and many others who deeply understand the importance and difficulty of identifying and optimizing the best possible training data for models. Our team has pioneered this frontier research area and has the deep expertise on both data research and data engineering necessary to solve this incredibly challenging problem and make data curation easy for anyone who wants to train their own model on their own data.\nThis role is based in San Mateo, CA. We are in office 4 days a week.\nAbout the Role\nWe are looking for Front-end engineers who love building new products in an iterative and fast-moving environment. In this role, you will build software from the ground up to solve critical bottlenecks for DatologyAI customers and internally. As one of our key hires, you will partner closely with our founders on the direction of our product and drive business-critical technical decisions.\nWhat You'll Work On\nYou will contribute to developing the core product that customers use for curating their datasets and the visualizations around it, as well as the internal tooling that our team uses daily to develop the core product. You will have a broad impact on the technology, product, and our company's culture.\nOwn the full front-end development lifecycle for customer-facing data curation products, from design through implementation, as well as new internal tooling interfaces.\n\nTalk to customers and internal stakeholders to understand their problems and design solutions to address them.\n\nCollaborate with a cross-functional team of engineers, researchers, designers, etc to bring new features and research capabilities to our customers.\n\nEnsure that our products and systems are reliable, secure, and worthy of our customers' trust.\n\nAbout You\n4+ years of relevant experience\n\nHave meaningful experience with leading and building production front-end systems that deliver on major product initiatives\n\nProficiency in JavaScript/TypeScript, React, other web technologies, and Python.\n\nCare deeply about quality, functionality, and the humans we’re communicating to by sweating the details, down to the last page request.\n\nExperience maintaining a high-quality bar for design, correctness, and testing.\n\nOwn problems end-to-end and are willing to pick up whatever knowledge you're missing to get the job done.\n\nHave a humble attitude, an eagerness to help your colleagues, and a desire to do whatever it takes to make the team succeed\n\nHave prior experience in ML/AI (preferred but not required).\n\nCompensation\nAt DatologyAI, we are dedicated to rewarding talent with competitive salary and meaningful equity. The salary for this position ranges from $180,000 to $300,000.\nStarting pay is based on job-related skills, experience, qualifications, and interview performance.\n\nBenefits:\n100% covered health benefits (medical, vision, and dental).\n\n401(k) plan with a generous 4% company match.\n\nUnlimited PTO policy\n\nPaid Parental Leave of 12 weeks, plus 6 months of WFH flexibility.\n\nAnnual $2,000 wellness stipend.\n\nAnnual $1,000 learning and development stipend.\n\nDaily lunches and snacks are provided in our office!\n\nRelocation assistance for employees moving to the Bay Area.","description_format":"text","description_chars":4393,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity","Parental leave","Relocation assistance","Unlimited PTO"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":true,"industries":["Machine Learning","AI Training Data & Annotation","AI Research Labs"],"lifecycle":[{"event":"open","at":"2026-03-18T22:44:37Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 5 · green card filings: 1","filings_12m":5,"filings_prev_12m":2,"green_card_filings_12m":1,"median_offered_wage_usd":229167,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":1}],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.164,"p_room":0.28,"age_days":211,"expected_fill_days":48,"reasons":["conf:2","stale_co","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/datologyai-software-engineer-full-stack","json_url":"https://alion.io/job/datologyai-software-engineer-full-stack.json","meta":{"generated_at":"2026-10-16T11:19:40Z","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":10018,"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":9100},"rest":"https://alion.io/mcp/rest/get_company?id=9100"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fdatologyai-software-engineer-full-stack"},{"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%2Fdatologyai-software-engineer-full-stack"},{"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%2Fdatologyai-software-engineer-full-stack"},{"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/datologyai-software-engineer-full-stack\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fdatologyai-software-engineer-full-stack"}]}