Senior CS Engineer - Secure Defaults

Description

Job Summary: As a Senior Go Developer at Mercado Libre, you will design and scale innovative and secure systems, solving high-impact problems in a dynamic environment powered by cutting-edge technology. Key Highlights: 1. Design and implement security-by-default capabilities. 2. Investigate vulnerabilities to eliminate root risks. 3. Ensure a scalable, secure, and resilient platform. As a **Senior Go Developer** at Mercado Libre, you will design and scale innovative and secure systems that solve real-world, high-impact problems. You will work in a dynamic environment leveraging cutting-edge technology, applying sound engineering practices, proprietary AI models, and continuous learning—all to democratize e-commerce and financial services across Latin America. Imagine leading challenging, dynamic, and innovative projects—and being **responsible for:** * Designing and implementing security-by-default capabilities across the ecosystem, ensuring low latency and high availability. * Contributing to the technical strategy for input validation and backend protections—such as SSRF—to natively integrate them into infrastructure. * Investigating vulnerabilities to identify optimal points for applying secure-by-default configurations that eliminate root risks. * Integrating security solutions transparently through technical collaboration with development stack teams. * Ensuring the platform scales securely and resiliently by participating in high-impact technical and business initiatives. **What are we looking for?** * Solid backend development experience and programming expertise in Go and Java. * Technical experience with traffic-layer infrastructure and system resilience concepts to design scalable solutions. * Technical knowledge of web security, including frontend vulnerabilities such as Cross-Site Scripting (XSS) and injection attacks. * Demonstrated understanding of mitigation mechanisms in microservice architectures and backend protections such as SSRF or CORS. **Ready to leave your mark on Latin American technology?** Apply now and join our mission! Hybrid work model. Site: Buenos Aires, Argentina.