{"id":2014975,"url":"https://alion.io/job/airbnb-senior-machine-learning-engineer-trust-3","title":"Senior Machine Learning Engineer (Trust)","company":{"id":1762392,"name":"Airbnb","domain":"airbnb.co.uk","url":"https://alion.io/company/airbnb-co-uk","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Welcome to the Jungle","truth_index":{"grade":"B","score":84,"open_postings":7,"ghost_share":0,"stale_share":0.857,"repost_share":0,"time_to_fill_p50_days":9,"computed_at":"2026-10-13T05:45:00Z"}},"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 Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":197000,"max_usd":374000,"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":"Anomaly Detection","optional":false},{"name":"Java","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"Scala","optional":false},{"name":"A/B Testing","optional":true},{"name":"PyTorch","optional":true},{"name":"TensorFlow","optional":true}],"status":"live","first_seen_at":"2026-09-30T00:03:26Z","employer_posted_date":"2026-10-07","last_verified_at":"2026-10-13T11:52:55Z","board_verified":true,"closed_at":null,"days_open":13,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":13},"description":"Join Airbnb's Trust team as a Senior Machine Learning Engineer, where you'll develop technology to protect the community from fraud and ensure high standards for hosts, guests, homes, and experiences. You'll work closely with product managers, data scientists, software engineers, and operations teams to design and build ML solutions that have a direct impact on user trust and business success. Your work will help reduce risks posed by bad actors while ensuring the platform remains seamless and welcoming for everyone else.\nMissions\nContribuer activement au code et aux idées qui façonnent les systèmes d'apprentissage automatique protégeant des millions d'utilisateurs d'Airbnb.\nPosséder et livrer des projets d'apprentissage automatique de bout en bout, de la conception et de l'entraînement des modèles à leur production et à leur exploitation à grande échelle.\nCollaborer avec des équipes interfonctionnelles pour identifier des opportunités, définir des solutions d'apprentissage automatique et affiner les exigences pour de nouveaux modèles de confiance.\nProfil recherché\n - Strong programming skills in Python (required) and familiarity with Scala, Java, or equivalent- Exposure to architectural patterns of large, high-scale software applications (e.g., well-designed APIs, high-volume data pipelines, efficient algorithms)\n- A Bachelor's, Master's, or PhD in CS/ML or a related field\n- Experience with data engineering and building end-to-end ML pipelines, including both batch and real-time systems\n- Exposure to the Trust and Risk domain (e.g., fraud detection, anomaly detection, identity, account integrity) is a plus\n- Experience with test-driven development, incremental delivery, and deployment practices\n- Experience with ML frameworks and tooling such as TensorFlow, PyTorch, or equivalent\n- 5+ years of industry experience in applied Machine Learning, with a track record of building and productionizing models at scale\n- Solid understanding of Machine Learning best practices - e.g., training/serving skew minimization, A/B testing, feature engineering, model selection - and algorithms such as gradient boosted trees, neural networks, transformers, and deep learning","description_format":"text","description_chars":2191,"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":["Travel & Tourism","Vacation Rentals"],"lifecycle":[{"event":"open","at":"2026-10-07T13:09:31Z"}],"visa":[],"liveness":{"score":38,"band":"fade","label":"Fading","p_open":1,"p_active":0.698,"p_room":0.55,"age_days":13,"expected_fill_days":9,"reasons":["conf:2","velocity","win:tail"],"computed_at":"2026-10-13T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/airbnb-senior-machine-learning-engineer-trust-3","json_url":"https://alion.io/job/airbnb-senior-machine-learning-engineer-trust-3.json","meta":{"generated_at":"2026-10-13T15:09:44Z","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":23240,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-14T00:00:00Z"}},"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":1762392},"rest":"https://alion.io/mcp/rest/get_company?id=1762392"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fairbnb-senior-machine-learning-engineer-trust-3"},{"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%2Fairbnb-senior-machine-learning-engineer-trust-3"},{"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%2Fairbnb-senior-machine-learning-engineer-trust-3"},{"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/airbnb-senior-machine-learning-engineer-trust-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fairbnb-senior-machine-learning-engineer-trust-3"}]}