Sr Software Engineer
Core
Design, develop, and evolve authentication and authorization components protecting access to APIs and services in the edge layer.
Role type
Senior Software Engineer (Backend, Distributed Systems)
Builds
Edge authentication and authorization services for the Mercado Libre ecosystem
Domain
Fintech / E-commerce / Security
Required skills
Go, HTTP/REST API design, OAuth 2.0, OpenID Connect, JWT, SAML, Kubernetes, CI/CD, observability, distributed systems architecture
Technologies
Go, Kubernetes, OAuth 2.0, OpenID Connect, JWT, SAML
Responsibilities
Design and evolve authentication and authorization services; Solve complex security, reliability, and performance issues in high-volume distributed systems; Implement identity validation, token controls, and traffic protection mechanisms; Define scalable and secure solutions; Ensure end-to-end quality through automated testing; Incorporate observability, metrics, traces, and alerts.
Seniority
Senior, hands-on IC
