{"id":1316346,"url":"https://alion.io/job/tiktok-senior-machine-learning-engineer-search-recommendation-e-commerce","title":"Senior Machine Learning Engineer - Search Recommendation, E-commerce","company":{"id":47,"name":"TikTok","domain":"tiktok.com","url":"https://alion.io/company/tiktok","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Feishu","truth_index":{"grade":"B","score":84,"open_postings":1569,"ghost_share":0,"stale_share":0.447,"repost_share":0,"time_to_fill_p50_days":94,"computed_at":"2026-10-12T06:55:09Z"}},"role":"AI/ML","role_family":"AI/ML","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":["San Jose, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":226000,"max_usd":430000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1124},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Machine Learning","optional":false},{"name":"NLP","optional":false},{"name":"Recommender Systems","optional":false}],"status":"live","first_seen_at":"2023-08-21T17:37:33Z","employer_posted_date":"2026-09-26","last_verified_at":"2026-10-12T15:28:13Z","board_verified":true,"closed_at":null,"days_open":1147,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":1147},"description":"岗位职责 / Responsibilities\nAbout the Team:\nThe Search Growth E-commerce team is at the forefront of developing the search recommendation algorithm for TikTok's rapidly expanding global e-commerce enterprise. Utilizing cutting-edge machine learning technology, advanced NLP, CV, recommendation, and multi-modal technology, we're shaping a pioneering engine within the industry. Our objective is to deliver the ultimate e-commerce search experience to over 1 billion active TikTok users worldwide. Our mission: to create a world where \"there are no hard-to-sell, overpriced products.\"\nResponsibilities - What You'll Do:\n- Elevate search recommendation services and models for TikTok E-commerce, driving heightened e-commerce search traffic on both TikTok and TikTok Mall, while enhancing user search and purchasing cognition.\n- Optimize the recommender system, focusing on hyperscale machine learning models. This involves diverse tasks spanning recall/first-stage ranking to final-stage ranking within the end-to-end workflow.\n- Push the boundaries of short text and general recommendation technology, with a specific emphasis on the interaction between recommendation and NLP technology.\n- Provide guidance and mentorship to fellow teammates.\n任职要求 / Requirements\nMinimum Qualifications:\n- 5+ years of work experience in machine learning. Good product sense with a focus on user experience and E-commerce business. \n- Domain knowledge or working experience in any of these areas: modern Recommendation, Search, Advertisement, E-commerce.\n- Bachelor or advanced degree in computer science or a related technical discipline.\n- Excellent coding skills. Solid knowledge of data structure and algorithms.\n- Excellent in analysis, modeling and problem-solving, and can see the essence of problems from complex data.","description_format":"text","description_chars":1805,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Commerce","Advertising","Social Commerce","Streaming & OTT Platforms"],"lifecycle":[{"event":"open","at":"2026-09-26T18:40:58Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 547 · green card filings: 242","filings_12m":547,"filings_prev_12m":889,"green_card_filings_12m":242,"median_offered_wage_usd":210130,"route":null,"cap_exempt":false,"checked_at":"2026-10-03T21:08:04+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":328}],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.217,"p_room":0.28,"age_days":1147,"expected_fill_days":94,"reasons":["conf:3","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-12T06:55:09Z"},"pay":null,"html_url":"https://alion.io/job/tiktok-senior-machine-learning-engineer-search-recommendation-e-commerce","json_url":"https://alion.io/job/tiktok-senior-machine-learning-engineer-search-recommendation-e-commerce.json","meta":{"generated_at":"2026-10-12T15:35:07Z","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":24488,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"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":47},"rest":"https://alion.io/mcp/rest/get_company?id=47"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftiktok-senior-machine-learning-engineer-search-recommendation-e-commerce"},{"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%2Ftiktok-senior-machine-learning-engineer-search-recommendation-e-commerce"},{"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%2Ftiktok-senior-machine-learning-engineer-search-recommendation-e-commerce"},{"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/tiktok-senior-machine-learning-engineer-search-recommendation-e-commerce\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftiktok-senior-machine-learning-engineer-search-recommendation-e-commerce"}]}