Job Description: At Penta Security Solutions, we are looking for a Security Analyst to join our team. We are seeking a proactive, analytical profile focused on continuous improvement, with solid knowledge in infrastructure, security operations, and corporate tool management. **Main Responsibilities:** Secure and maintain the company's technological infrastructure. Administer, configure, and optimize Microsoft Defender and its associated modules. Manage the patch and update lifecycle on servers and workstations. Participate in the daily security operations: monitoring, initial response, alerts, and controls. Document processes, configurations, and implemented improvements. Collaborate with infrastructure and support teams to ensure good cybersecurity practices. **Requirements:** Prior experience in Information Security or Infrastructure roles. Knowledge of security tools: Microsoft Defender, EDR, antivirus, firewalls, etc. Experience in patch management, hardening, and security best practices. Knowledge of Windows and/or Linux operating systems. Desirable: experience in monitoring, SIEM, automation, or scripting (not mandatory). **We Offer:** Dynamic and collaborative work environment. Opportunities for growth in cybersecurity projects. Continuous training and team support. Excellent working atmosphere