{"id":2535356,"url":"https://alion.io/job/mercado-libre-senior-machine-learning-engineer-2","title":"Senior Machine Learning Engineer","company":{"id":237,"name":"Mercado Libre","domain":"mercadolibre.com","url":"https://alion.io/company/mercado-libre","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Eightfold","truth_index":{"grade":"B","score":84,"open_postings":55,"ghost_share":0.018,"stale_share":0.582,"repost_share":0.055,"time_to_fill_p50_days":37,"computed_at":"2026-10-15T05:46:00Z"}},"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":["Bogotá, Colombia"],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":76000,"max_usd":195000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2102},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"BigQuery","optional":false},{"name":"Google BigQuery","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-09-29T16:53:48Z","employer_posted_date":"2026-10-14","last_verified_at":"2026-10-15T16:27:16Z","board_verified":true,"closed_at":null,"days_open":16,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":16},"description":"Como Senior Machine Learning Engineer en Mercado Libre, diseñarás y escalarás sistemas innovadores y seguros que resuelven problemas reales y de alto impacto. Trabajarás en un entorno dinámico con tecnología de vanguardia, aplicando buenas prácticas de ingeniería, modelos de IA propios y aprendizaje continuo, con el propósito de democratizar el comercio electrónico y los servicios financieros en América Latina.\nImagináte emprendiendo proyectos desafiantes, dinámicos e innovadores y siendo responsable de:\nDiseñar soluciones end-to-end para capturar, procesar y disponibilizar información de plataformas de Inteligencia Artificial mediante automatizaciones y pipelines de datos.\n\nConstruir modelos de datos, métricas y metodologías para evaluar la presencia, percepción y performance de Mercado Libre y Mercado Pago en experiencias basadas en LLMs.\n\nDesarrollar servicios backend, APIs y soluciones web internas para explorar, analizar y accionar sobre la información generada.\n\nInvestigar la evolución de LLMs y motores de respuesta para adaptar las soluciones de captura, procesamiento y medición de la plataforma.\n\nColaborar con equipos multidisciplinarios para transformar problemas abiertos en experimentos, insights y soluciones escalables con impacto de negocio.\n\n¿Qué buscamos en vos?\nContar con experiencia en Data Science, Analytics o desarrollo de soluciones basadas en datos a lo largo de las distintas etapas del ciclo de vida.\n\nDominar Python, SQL y el procesamiento de grandes volúmenes de datos mediante BigQuery o tecnologías equivalentes.\n\nPoseer experiencia en la construcción de pipelines, transformaciones, modelos de datos y mecanismos de validación de calidad de información.\n\nTener conocimientos en estadística, análisis exploratorio, diseño de métricas y evaluación de capacidades y limitaciones de Generative AI o LLMs.\n\nContar con conocimientos de desarrollo de software, buenas prácticas de ingeniería y herramientas de APIs, servicios backend, scraping o automatización.\n\n¿Te animás a dejar huella en la tecnología de América Latina?\n¡Postulate y sumate a nuestro propósito!\nModalidad de trabajo híbrida. Site: Bogotá, Colombia.","description_format":"text","description_chars":2161,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"Spanish","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Marketplaces","Payment Processing & Gateways","Digital Banks & Neobanks"],"lifecycle":[{"event":"open","at":"2026-10-14T14:06:20Z"}],"visa":[],"liveness":{"score":53,"band":"ok","label":"Likely open","p_open":1,"p_active":0.592,"p_room":0.9,"age_days":15,"expected_fill_days":37,"reasons":["conf:0","stale_co","velocity","win:mid","comp:brand"],"computed_at":"2026-10-15T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/mercado-libre-senior-machine-learning-engineer-2","json_url":"https://alion.io/job/mercado-libre-senior-machine-learning-engineer-2.json","meta":{"generated_at":"2026-10-15T20:01:50Z","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":30414,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-16T00:00:00Z"}},"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":237},"rest":"https://alion.io/mcp/rest/get_company?id=237"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmercado-libre-senior-machine-learning-engineer-2"},{"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%2Fmercado-libre-senior-machine-learning-engineer-2"},{"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%2Fmercado-libre-senior-machine-learning-engineer-2"},{"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/mercado-libre-senior-machine-learning-engineer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmercado-libre-senior-machine-learning-engineer-2"}]}