Job Summary: As a Data Security Technical Leader, you will design and scale innovative security systems in a dynamic environment powered by cutting-edge technology to democratize e-commerce and financial services across Latin America. Key Highlights: 1. Lead challenging, dynamic, and innovative projects. 2. Drive innovation and cross-functional collaboration by evaluating new technologies. 3. Solid experience in large-scale threat detection and Threat Hunting. As a **Data Security Technical Leader** at Mercado Libre, you will design and scale innovative, secure systems that solve real-world, high-impact problems. You will work in a dynamic environment leveraging cutting-edge technology, applying engineering best practices, proprietary AI models, and continuous learning—all aimed at democratizing e-commerce and financial services across Latin America. Imagine leading challenging, dynamic, and innovative projects, **with responsibility for:** * Leading the vision, roadmap, and standards for the UEBA program—including insider threat and suspicious activity—coordinating with IRT, Threat Intel, and platform teams; including technical mentoring and architectural/stack decisions. * Defining data architecture and strategy for detection sources, normalization, event modeling, lifecycle management, and observability—with focus on privilege abuse and identity-centric signals. * Designing and evolving detectors and behavioral analytics, optimizing signal-to-noise ratio, risk-based prioritization, and contextual enrichment using identity, assets, criticality, and historical data. * Ensuring end-to-end operational excellence—from triage through incident management—with metrics such as MTTD/MTTR and alignment to frameworks like MITRE ATT&CK, NIST, ISO 27001, and CIS. * Driving innovation and cross-functional collaboration by evaluating emerging technologies—including advanced automation and GenAI applied to SIEM—and acting as a technical advisor during audits and high-impact crises. ### **What Are We Looking For?** * Proven experience in threat detection and Threat Hunting in large-scale environments, with end-to-end detection lifecycle management. * Advanced expertise in EDR/XDR, SIEM, MITRE ATT&CK, Threat Intelligence, log analysis, TCP/IP networking, and Linux/Windows system administration. * Practical experience with anomaly detection and behavioral scoring models, baseline construction, dynamic threshold definition, quality assessment, and production maintenance. * Experience designing and optimizing incident management processes—including triage patterns, enrichment, routing, and ownership—as well as defining technical standards, developing talent, and strategically communicating risk aligned to business impact. **Are you motivated to leave your mark on Latin American technology?** Apply now and join our mission! Hybrid work model. Site: Bogotá, Colombia.