Software Engineer
Mercado Libre1 day ago
Medellín, ColombiaSenior
Responsibilities
- Design and launch authorization capabilities that reduce low-value manual approvals, apply risk-based controls, and automate alerts and tasks.
- Protect sensitive data through personal-data anonymization, confidential endpoint separation, and identity- and context-based access controls.
- Evolve authentication and authorization mechanisms for applications, services, and AI tools with secure, adoptable integrations.
- Lead initiatives from technical design and documentation through implementation, testing, gradual deployment, observability, and production follow-up.
- Coordinate with platform and security teams, participate in on-call rotations and incidents, and share practices through code reviews, pair programming, and documentation.
Requirements
- Proficiency in Java or Go and distributed backend service development.
- Experience designing REST APIs with synchronous and asynchronous communication.
- Ability to write unit and integration tests and maintain testable code.
- Knowledge of authentication, authorization, least privilege, vulnerability mitigation, networking, routing, proxies, and traffic management.
- Familiarity with SQL, BigQuery or equivalent tools, and evaluating cost, performance, security, and scalability.
- Experience with Git, continuous integration and deployment, GenAI tools, agentic development environments, and MCPs with technical review and independent judgment.
- Fury, NGINX, Envoy, or sidecar experience is valued.
Benefits
- Hybrid work arrangement in Medellín, Colombia.
- A collaborative environment involving code reviews, pair programming, documentation, and coordination with platform and security teams.
About Mercado Libre
Mercado Libre builds an e-commerce marketplace and fintech infrastructure for consumers and merchants across Latin America. It monetizes through marketplace transaction fees, payment processing (Mercado Pago), logistics and fulfillment (Mercado Envíos), advertising, and credit products. Founded in 1999 and headquartered in Buenos Aires, it operates in 18 countries and is publicly traded on Nasdaq under the ticker MELI.