{"id":3681584,"url":"https://alion.io/job/wethosai-senior-data-science-engineer","title":"Senior Data Science Engineer","company":{"id":4502196,"name":"WethosAI","domain":"wethos.ai","url":"https://alion.io/company/wethos-2","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Schema","truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":["US"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Embeddings","optional":false},{"name":"LLM Evaluation","optional":false},{"name":"CrewAI","optional":true},{"name":"dbt","optional":true},{"name":"Fine-tuning","optional":true},{"name":"Function Calling","optional":true},{"name":"LangChain","optional":true},{"name":"LangGraph","optional":true},{"name":"Polars","optional":true},{"name":"Prompt Engineering","optional":true},{"name":"Python","optional":true},{"name":"PyTorch","optional":true},{"name":"Scikit-learn","optional":true}],"status":"live","first_seen_at":"2026-05-21T00:00:00Z","employer_posted_date":"2026-09-01","last_verified_at":"2026-11-07T10:18:47Z","board_verified":true,"closed_at":null,"days_open":170,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":170},"description":"WethosAI is an enterprise AI company applying behavioral science to executive decision-making. As a Senior Data Science Engineer you'll sit at the intersection of research and production: turning behavioral and psychometric models into deployable systems, and building the pipelines that keep them sharp as we ship.What you'll do: Design and own end-to-end ML pipelines that power our core product features.\nOperationalize psychometric and behavioral models from our research team: embeddings, propensity models, latent-trait inference.\nBuild evaluation harnesses that hold model outputs to a scientific bar, not just an engineering one.\nPartner with product to ship features that are statistically honest about uncertainty.\nMentor on data quality, experimental design, and reproducibility across the team.\nWhat we're looking for: 5+ years building production ML systems. Bonus if any of that was inside behavioral science, psychometrics, or organizational research.\nFluency in Python and the modern data stack (pandas / Polars, PyTorch, scikit-learn, dbt or equivalent).\nStrong intuition for when to reach for a foundation model and when a simple Bayesian model is the right answer.\nComfort working closely with LLMs as a substrate, not a magic box: prompt engineering, tool use, evals, fine-tuning.\nA bias toward shipping, and a discipline for measuring what you ship.\nNice to have: Background in I/O psychology, computational social science, or behavioral economics. • Experience with agent frameworks (LangGraph, CrewAI, custom orchestration). • Published research or open-source contributions in any of the above.","description_format":"text","description_chars":1618,"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":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Cybersecurity","AI Agents"],"lifecycle":[{"event":"open","at":"2026-11-03T13:19:27Z"}],"visa":[],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":0.9,"p_active":0.279,"p_room":0.28,"age_days":170,"expected_fill_days":30,"reasons":["conf:71","win:tail","crowd:"],"computed_at":"2026-11-07T05:47:08Z"},"pay":null,"html_url":"https://alion.io/job/wethosai-senior-data-science-engineer","json_url":"https://alion.io/job/wethosai-senior-data-science-engineer.json","meta":{"generated_at":"2026-11-07T23:44:56Z","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":39646,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-08T00:00:00Z"}},"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":4502196},"rest":"https://alion.io/mcp/rest/get_company?id=4502196"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fwethosai-senior-data-science-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%2Fwethosai-senior-data-science-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%2Fwethosai-senior-data-science-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/wethosai-senior-data-science-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fwethosai-senior-data-science-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3681584}},{"tool":"search_jobs","arguments":{"company":"wethos.ai","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3681584},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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