{"id":1301437,"url":"https://alion.io/job/tiktok-software-engineer-model-infrastructure-tiktok-feeds","title":"Software Engineer - Model Infrastructure, TikTok Feeds","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":3457,"ghost_share":0.187,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":104,"computed_at":"2026-11-08T05:47:12Z"}},"role":"Backend","role_family":"Backend","seniority":null,"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":201000,"max_usd":435000,"period":"year","method":"role_country_seniority_unknown","sample_n":9411},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CUDA","optional":false},{"name":"CUTLASS","optional":false},{"name":"Machine Learning","optional":false},{"name":"NLP","optional":false},{"name":"PyTorch","optional":false},{"name":"TensorFlow","optional":false},{"name":"Triton","optional":false},{"name":"Apache TVM","optional":true},{"name":"MLIR","optional":true},{"name":"Recommender Systems","optional":true},{"name":"XLA","optional":true}],"status":"live","first_seen_at":"2025-06-11T22:57:27Z","employer_posted_date":"2026-10-31","last_verified_at":"2026-11-08T22:58:17Z","board_verified":true,"closed_at":null,"days_open":515,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":514},"description":"岗位职责 / Responsibilities\nAbout the Team:\nThe TikTok Feeds Recommendation Architecture team is responsible for the design and development of TikTok's For You Feed recommendation system. Our scope spans the entire online and offline recommendation pipeline, including strategy, modeling, and data infrastructure. We build scalable and efficient infrastructure to support rapid algorithm iteration, tackle massive throughput challenges, and enhance system performance, cost-efficiency, and stability. Our mission is to abstract and generalize core infrastructure services, components, and productivity tools that empower the recommendation system at scale.\nAbout the Role:\nWe are seeking talented Software Engineers to join our Model Infrastructure team. You will focus on the architecture and engineering challenges associated with large-scale recommendation models - from online inference to offline training. Your work will directly contribute to supporting increasingly complex models, solving bottlenecks in computation and storage, and enabling breakthrough innovations in recommendation algorithms.\nAs large foundation models (in CV/NLP/multimodal and beyond) continue to advance, the recommendation domain is evolving towards leveraging powerful compute to gain deeper understanding of user intent and preferences. In this role, you'll help co-design system architecture and algorithm infrastructure to balance compute cost with recommendation effectiveness at scale.\nResponsibilities:\n- Build and optimize infrastructure for online inference and offline training of recommendation models.\n- Solve challenges posed by the combination of high model complexity, massive data, and large-scale deployments.\n- Work closely with algorithm researchers to co-design infrastructure aligned with cutting-edge machine learning frameworks and hardware accelerators.\n- Continuously improve model architecture, efficiency, and scalability to enable better user experiences.\nAbstract and build reusable infrastructure components and tools that benefit the broader recommendation stack.\n任职要求 / Requirements\nMinimum Qualifications:\n- Bachelor's degree or above, majoring in Computer Science, or related fields.\n- Understanding of GPU architecture and the software stack (CUDA, CUTLASS, Triton Lang), with experience in GPU performance analysis.\n- Experience with at least one machine learning framework (e.g., TensorFlow, PyTorch, or in-house alternatives).\n- Initiative and self-drive; eager to take on complex challenges.\n- Proven ability to work independently and collaboratively in a fast-paced team environment.\nPreferred Qualifications: \n- Familiarity with implementation details of deep learning networks and low-level operators.\n- Experience with large-scale distributed model training.\n- Knowledge of DNN compilers such as MLIR, XLA, or TVM.\n- Ability to analyze and optimize training/inference algorithms using mathematical tools.","description_format":"text","description_chars":2927,"description_truncated":false,"requirements":{"experience_years_min":null,"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":["Advertising","Social Commerce","Social Networks","Video & Photo Sharing"],"lifecycle":[{"event":"open","at":"2026-09-26T11:45:02Z"},{"event":"close","at":"2026-10-30T19:58:49Z"},{"event":"reopen","at":"2026-10-31T00:21:58Z"}],"visa":[{"country":"US","licensed_sponsor":true,"adverts_offering_sponsorship_24m":0,"sanctioned_now":false,"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":"2026-11-08T10:45:15+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":217}],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.181,"p_room":0.28,"age_days":514,"expected_fill_days":104,"reasons":["conf:3","velocity","ghost","win:tail","crowd:brand"],"computed_at":"2026-11-08T05:47:12Z"},"pay":null,"html_url":"https://alion.io/job/tiktok-software-engineer-model-infrastructure-tiktok-feeds","json_url":"https://alion.io/job/tiktok-software-engineer-model-infrastructure-tiktok-feeds.json","meta":{"generated_at":"2026-11-09T01:41:50Z","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":3544,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-10T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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-software-engineer-model-infrastructure-tiktok-feeds"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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-software-engineer-model-infrastructure-tiktok-feeds"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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-software-engineer-model-infrastructure-tiktok-feeds"},{"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-software-engineer-model-infrastructure-tiktok-feeds\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftiktok-software-engineer-model-infrastructure-tiktok-feeds"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":1301437}},{"tool":"search_jobs","arguments":{"company":"tiktok.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":1301437},"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. Docs: https://alion.io/developers"}}