Job Summary: Information Security Analyst II to protect network and infrastructure assets, focusing on operations, administration, and continuous improvement of security controls. Key Highlights: 1. Autonomous operation and analytical thinking 2. Collaboration with Security, Networking, and Engineering teams 3. Focus on confidentiality, integrity, and availability We are seeking an **Information Security Analyst II (Infrastructure Security)** to safeguard corporate network assets, infrastructure, and services. This role focuses on the **operation, administration, and continuous improvement of security controls**, ensuring confidentiality, integrity, and availability of the environment. We seek a candidate with greater autonomy, analytical thinking, and collaboration capabilities with Security, Networking, Engineering, Planning, and Project teams. **Responsibilities and Duties** * Handle internal requests via **ITSM – Level 2** * Create and execute **change records (ITSM – Level 2\)** * Manage, operate, and monitor **Firewalls**, ensuring security policies and service availability * Administer and protect the **Authoritative DNS**, ensuring integrity, availability, and compliance * Operate and protect the **Recursive DNS**, preventing threats such as phishing, malware, tunneling, and amplification attacks * Operate and respond using **AntiDDoS solutions**, protecting services against volumetric and application-layer attacks * Administer **Device Administration (TACACS\+)** solutions, ensuring AAA, role segregation, and audit trails * Operate and enhance the **RADIUS platform**, ensuring secure authentication, least privilege, and optimal connectivity experience * Participate in **incident investigations**, proposing improvements and continuously strengthening security controls **Requirements and Qualifications** * Fundamentals of Information Security (CID) * TCP/IP Networking * Firewalls, VPN, and Proxy * DNS (Authoritative and Recursive) * EDR/XDR, SIEM, IDS/IPS * AntiDDoS Solutions * AAA Protocols (TACACS\+ and RADIUS) ### **EXPERIENCE** * Solid experience in Information Security ### **EDUCATION** * Bachelor’s degree **completed or in progress** in: * Information Security * Computer Science * Computer Networks * Computer Engineering * Information Technology or related fields **Work Modality:** On-site (Uberlândia and regional offices) / Remote (all other locations). We accept applications from across Brazil, but it would be ideal if you reside in or are from Uberlândia/MG or live near one of our regional offices. **Additional Information** **Benefits:** * Meal allowance * Health insurance * Dental insurance * Life insurance * Wellhub * “Tranquil Mind” Program * Profit-sharing program (PLR) ### **Being Always Together is What Drives Us!!!** We are Algar, a “People serving People” company belonging to Grupo Algar and committed to best ESG practices. Our greatest expertise lies in connecting people and innovating to positively transform the future. With over 70 years of history, we have built a comprehensive portfolio of technology and telecommunications solutions serving corporate (B2B) and retail (B2C) customers nationwide. Here, you will find access to voice, data, IT, IoT, and Artificial Intelligence services, ultra-fast internet (Fiber and 5G), high-quality mobile services, fixed and mobile telephony, and a company recognized as a sustainability leader in environmental, social, and governance matters—ranked among the best places to work by GPTW. Because we care deeply about our human capital, pillars such as health, safety, and well-being form the foundation for developing our 4,000+ associates—the term we use for our employees. With our eyes on the future, we are here to deliver the best IT and Telecom products and services for your personal and professional life—and also ready to be your top choice for career growth and professional development. That’s what it truly means to be **\#AlwaysTogether.**