Senior Security Engineer - Antiscraping
Mercado Libre15 hours ago
Medellín, ColombiaSenior
Responsibilities
- Design, develop, and evolve real-time mechanisms for detecting and mitigating malicious automation.
- Develop high-performance Go microservices using scalable, resilient, and observable software architecture principles.
- Research automation evasion techniques and design controls to detect and mitigate sophisticated behavior.
- Analyze large volumes of traffic to identify abuse patterns and turn findings into automated security controls.
- Collaborate with security, platform, and infrastructure teams to incorporate signals, strengthen protections, and respond to threats.
- Participate in technical design, code reviews, and continuous platform improvement.
Requirements
- Solid experience in backend development with Go and in designing microservices architectures.
- Strong knowledge of software engineering practices, including automated testing, observability, error handling, and performance optimization.
- Experience processing large data volumes or developing real-time systems.
Benefits
- Hybrid work arrangement at the Medellín, Colombia site.
- Learning agility and participation in Mercado Libre's professional development culture.
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.