{"id":3738091,"url":"https://alion.io/job/apple-senior-machine-learning-engineer-media-knowledge","title":"Senior Machine Learning Engineer, Media Knowledge","company":{"id":12,"name":"Apple","domain":"apple.com","url":"https://alion.io/company/apple","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Apple Jobs","truth_index":{"grade":"A","score":89,"open_postings":812,"ghost_share":0,"stale_share":0.222,"repost_share":0.004,"time_to_fill_p50_days":90,"computed_at":"2026-11-07T05:47:08Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Barcelona, Spain"],"countries":["ES"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Knowledge Graph","optional":false},{"name":"Machine Learning","optional":false},{"name":"LLM","optional":true},{"name":"Multimodal AI","optional":true},{"name":"RAG","optional":true},{"name":"Speech Recognition","optional":true}],"status":"live","first_seen_at":"2026-11-04T10:16:01Z","employer_posted_date":"2026-11-04","last_verified_at":"2026-11-07T12:32:44Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"Do you want to help Apple deeply understand the music, shows, podcasts, and artists our customers love? Our team builds the intelligence behind Apple’s media experiences. We combine speech, language, vision, and knowledge technologies to understand audio, video, text, and images at the scale of Apple Music, Apple Podcasts, Apple TV, and Apple Sports. We build user-facing features powered by media intelligence, and our work also improves search, discovery, recommendations, and answers across Apple’s products. We’re a growing team in Barcelona, working with partners across Apple.\nDescription\nWe’re looking for a Senior Machine Learning Engineer to help shape how Apple represents media knowledge and uses it to build rich, accurate, and personal experiences. You’ll work at the intersection of large language models, information extraction, and knowledge graphs. You’ll have end-to-end ownership of designing how knowledge is modeled, building the systems that produce it at scale, and ensuring its quality. You’ll work closely with engineers and product partners, owning hard problems from early prototypes through to production.\nWe’re looking for someone with a healthy impatience: eager to prototype and test ideas with real data, iterating quickly and learning from what doesn’t work, while keeping a high bar for engineering and data quality. Above all, you’re curious and enjoy open problems where the path isn’t yet defined.\nMinimum Qualifications\nB.S. in Computer Science, Machine Learning, Engineering, or related field, or equivalent practical experience.\nSubstantial experience building and shipping large-scale ML/AI systems in production.\nHands-on experience building production ML systems using LLMs, ideally for information extraction, entity linking or knowledge graphs.\nStrong programming skills, and experience building production streaming and batch data pipelines.\nExcellent communication and collaboration skills, with the ability to explain complex topics clearly.\nPreferred Qualifications\nM.S. or Ph.D. in Computer Science, Artificial Intelligence, Machine Learning, or related field.\nExperience designing knowledge representations, data models, or ontologies.\nExperience with multimodal understanding of audio, video, or images, such as speech recognition or video understanding.\nExperience with LLM-as-judge evaluation and running human annotation programs.\nExperience with vector search technologies, RAG, or LLM agents that use tools and multi-step reasoning.\nExperience with Spark or similar distributed data processing frameworks.","description_format":"text","description_chars":2564,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":true},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Operating Systems","Laptops","Smartwatches & Fitness Trackers","Tablets"],"lifecycle":[{"event":"open","at":"2026-11-04T10:34:43Z"}],"visa":[],"liveness":{"score":99,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.993,"p_room":1,"age_days":2,"expected_fill_days":90,"reasons":["conf:1","urgency","velocity","win:early","comp:brand"],"computed_at":"2026-11-07T05:47:08Z"},"pay":null,"html_url":"https://alion.io/job/apple-senior-machine-learning-engineer-media-knowledge","json_url":"https://alion.io/job/apple-senior-machine-learning-engineer-media-knowledge.json","meta":{"generated_at":"2026-11-07T14:42:59Z","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":19224,"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":12},"rest":"https://alion.io/mcp/rest/get_company?id=12"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fapple-senior-machine-learning-engineer-media-knowledge"},{"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%2Fapple-senior-machine-learning-engineer-media-knowledge"},{"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%2Fapple-senior-machine-learning-engineer-media-knowledge"},{"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/apple-senior-machine-learning-engineer-media-knowledge\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fapple-senior-machine-learning-engineer-media-knowledge"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3738091}},{"tool":"search_jobs","arguments":{"company":"apple.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3738091},"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); 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