{"id":661505,"url":"https://alion.io/job/mercado-libre-senior-software-engineer-office-security","title":"Senior Software 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":"A","score":88,"open_postings":67,"ghost_share":0.015,"stale_share":0.403,"repost_share":0.09,"time_to_fill_p50_days":37,"computed_at":"2026-11-08T05:47:12Z"}},"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":["Medellín, Colombia"],"countries":["CO"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":97000,"max_usd":217000,"period":"year","method":"role_seniority_country_cell","sample_n":9},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Git","optional":false},{"name":"Go","optional":false},{"name":"Google BigQuery","optional":false},{"name":"Java","optional":false},{"name":"Nginx","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-09-02T17:16:11Z","employer_posted_date":"2026-11-04","last_verified_at":"2026-11-08T04:18:42Z","board_verified":true,"closed_at":null,"days_open":66,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":65},"description":"Senior Sofware Engineer\n¡Haz historia en la democratización del comercio y de los servicios financieros, transformando la vida de millones de personas en América Latina con Mercado Libre!\nDiseña capacidades de autorización que protegen los datos y recursos del ecosistema, reducen fricciones y concentran los controles en los riesgos reales.\nDesafíos:\nDiseñar y poner en marcha capacidades de autorización que reduzcan aprobaciones manuales de bajo valor, apliquen controles según el riesgo y automaticen alertas y tareas para las personas responsables de cada recurso.\n\nProteger datos sensibles mediante la anonimización de datos personales, separar endpoints confidenciales y definir controles de acceso basados en la identidad y el contexto.\n\nEvolucionar los mecanismos de autenticación y autorización para aplicaciones, servicios y herramientas de IA, con integraciones seguras, fáciles de adoptar y consistentes con las necesidades de quienes desarrollan.\n\nLiderar iniciativas desde el diseño técnico y la documentación de decisiones hasta la implementación, las pruebas, el despliegue gradual, la observabilidad y el seguimiento en producción; coordinar con equipos de plataforma y seguridad, participar en guardias e incidentes, y compartir prácticas mediante revisiones de código, programación en pares y documentación.\n\nExperiencia y conocimientos:\nAprender con agilidad en base a desafíos, potenciándote con tecnología y GenAI.\n\nApasionarse por salir de la zona de confort, dar el máximo, superar los propios límites y emprender en un ambiente sano, alegre y divertido.\n\nDominar Java o Go y el desarrollo backend de servicios distribuidos; diseñar APIs REST con comunicación síncrona y asíncrona; escribir pruebas unitarias e integradoras y mantener código testeable.\n\nAplicar autenticación, autorización, mínimo privilegio y mitigación de vulnerabilidades; comprender redes, enrutamiento, proxies y gestión de tráfico. 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