Cyber Security Engineer

Description

Job Summary: As a Cyber Security Engineer, you will design and scale innovative, secure systems in a dynamic environment powered by cutting-edge technology, applying sound engineering practices and AI. Key Responsibilities: 1. Design and operationalize social engineering and phishing simulations. 2. Design and execute offensive exercises (Red Team, Pentest). 3. Drive and implement AI-based security solutions. As a **Cyber Security Engineer** 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 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 operationalizing social engineering and phishing simulations to assess organizational resilience. * Designing and executing offensive exercises (Red Team, Pentest) to identify threats and validate security controls. * Managing findings with technical teams to ensure tracking and closure of action items. * Driving and implementing AI-based solutions that automate key security team processes. * Defining and maintaining KPIs that measure the impact of initiatives and Meli’s exposure level. **What are we looking for?** * Practical experience in pentesting and red teaming across applications, infrastructure, and cloud environments. * Strong Python development skills and experience using REST APIs. * Experience applying AI technologies in offensive security or process automation contexts. * Familiarity with frameworks such as MITRE ATT\&CK and threat simulation methodologies. **Ready to leave your mark on Latin American technology?** Apply now and join our mission! *Hybrid work mode. On-site, Buenos Aires*.