{"id":1162327,"url":"https://alion.io/job/mercado-libre-sr-ai-engineer-ai-models-platform-knowledge","title":"Sr AI Engineer - AI Models & Platform - Knowledge","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":83,"open_postings":59,"ghost_share":0.017,"stale_share":0.593,"repost_share":0.051,"time_to_fill_p50_days":37,"computed_at":"2026-10-17T05:46:00Z"}},"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":73000,"max_usd":188000,"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":"Claude","optional":false},{"name":"Git","optional":false},{"name":"GraphRAG","optional":false},{"name":"Jira","optional":false},{"name":"Kanban","optional":false},{"name":"Machine Learning","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"Python","optional":false},{"name":"RAG","optional":false},{"name":"Scrum","optional":false}],"status":"live","first_seen_at":"2026-09-18T16:16:21Z","employer_posted_date":"2026-09-21","last_verified_at":"2026-10-17T16:57:58Z","board_verified":true,"closed_at":null,"days_open":29,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":29},"description":"Como Sr AI 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:\nDefinir e implementar estándares técnicos que promuevan la calidad, estabilidad y sostenibilidad de los agentes e interacciones agénticas.\n\nGenerar y analizar las trazas de los agentes para identificar oportunidades de mejora en su calidad.\n\nGenerar ground truths y evals que permitan medir y validar el desempeño de los agentes.\n\nExplorar y aplicar enfoques de Machine Learning y fundamentos de aprendizaje por refuerzo para mejorar la eficiencia y evolución de los agentes y workflows inteligentes.\n\nTrabajar sobre sistemas de alta disponibilidad y criticidad, analizando el impacto técnico y operativo de los cambios en la plataforma.\n\n¿Qué buscamos en vos?\nContar con experiencia en el diseño e implementación de sistemas RAG/GraphRAG, sólidos conocimientos de Python y dominio de LLMs y arquitecturas de IA generativa.\n\nPoseer conocimiento de herramientas y plataformas internas de Meli como Verdi Flows, MeliGPT, Fury, MCP, Skills y Claude/Codex.\n\nTener familiaridad con metodologías ágiles como Jira, Scrum, Kanban y versionado de código con Git.\n\nDemostrar capacidad analítica para el análisis de trazas de agentes, generación de ground truths/evals y evaluación continua de calidad.\n\nTener experiencia conduciendo proyectos complejos de IA/ML, garantizando integración y evolución eficiente de sistemas de alta disponibilidad.\n\n¿Te animás a dejar huella en la tecnología de América Latina? ¡Postulate y sumate a nuestro propósito!\nModalidad de trabajo híbrida. 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