Senior CS Engineer - Secure Defaults

Senior CS Engineer - Secure Defaults

Mercado Libre, Software Engineering, Buenos Aires, Argentina, Hybrid, Senior, Full‑time, Jul 6, 2026

Core Responsibilities

Design and implement default security capabilities in the ecosystem ensuring low latency and high availability. Participate in the technical strategy for input validation and backend protections like SSRF to integrate them natively into the infrastructure. Investigate vulnerabilities to identify optimal points for applying secure default configurations that eliminate risks.

Requirements

Solid experience in backend development with programming knowledge in Go and Java. Technical experience in traffic layer infrastructure concepts and system resilience to design scalable solutions. Knowledge of web security vulnerabilities including frontend issues like Cross Site Scripting and injection attacks.

Key Skills & Technologies

Go, Java, web security, microservices, s...