{"id":3108059,"url":"https://alion.io/job/mercado-libre-sr-backend-engineer-applied-capabilities","title":"Sr Backend Engineer - Applied Capabilities","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":"A","score":87,"open_postings":60,"ghost_share":0.017,"stale_share":0.433,"repost_share":0.067,"time_to_fill_p50_days":36,"computed_at":"2026-10-28T05:59:10Z"}},"role":"Backend","role_family":"Backend","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":["CO"],"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":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Clean Architecture","optional":false},{"name":"GCP","optional":false},{"name":"React.js","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-22T12:54:20Z","employer_posted_date":"2026-10-22","last_verified_at":"2026-10-29T00:19:46Z","board_verified":true,"closed_at":null,"days_open":6,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":6},"description":"Descripción larga\nSr Software Engineer -Applied Capabilities\nComo Software Engineer Backend 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:\nRelevar problemáticas técnicas, co-construir soluciones y arquitecturas que garanticen excelencia en performance y escalabilidad.\n\nDiseñar y evolucionar arquitecturas que permitan escalar ejecuciones masivas basadas en IA, optimizando la concurrencia, el procesamiento distribuido, los tiempos de respuesta y los costos de infraestructura, con foco en robustez, observabilidad y estabilidad en producción.\n\nDiseñar e implementar APIs y servicios backend que integren múltiples sistemas dentro del ecosistema MELI.\n\nRealizar estimaciones, análisis de impacto y asegurar calidad en la ejecución.\n\nTrabajar en entornos de alto tráfico y alta disponibilidad.\n\nAportar visión técnica en un proyecto que evoluciona rápido, integrando componentes de IA, simulación y backend distribuido.\n\nColaborar con equipos multidisciplinarios: Data Scientists, Data Engineers, UX y otros perfiles técnicos.\n\n¿Qué buscamos en vos?\nExperiencia en diseño y desarrollo de APIs y servicios backend escalables.\n\nManejo de buenas prácticas de ingeniería: SOLID, TDD, patrones de diseño, clean architecture.\n\nConocimientos en versionamiento de código y mejores prácticas dentro de MELI: CI/CD, GIT, AWS, GCP.\n\nConocimiento de arquitectura de microservicios.\n\nDeseable: interés o experiencia en LLMs, integraciones de IA, o herramientas de frontend (React.js / Nordic / Andes) para prototipos internos.\n\n¿Te animás a dejar huella en la tecnología de América Latina? \n ¡Postulate y sumate a nuestro propósito!\nModalidad de trabajo híbrida. 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