Junior Information Security Analyst

Description

Job Summary: We are seeking a Junior Blue Team Analyst to join our Defensive Security team, responsible for executing defensive, detection, incident response, and monitoring activities to protect information assets and enhance defensive security. Key Highlights: 1. Incident defense, detection, and response 2. Continuous improvement of security policies and processes 3. Collaboration with Red Team, SOC, Architecture, and DevSecOps teams **Job Objective:** We seek a Junior Blue Team Analyst to join our Defensive Security team, performing defense, detection, incident response, and monitoring activities to safeguard the company's information assets against cyber threats, while continuously improving defensive security policies, processes, and tools. **Responsibilities and Duties** **Responsibilities:** * Detect and support remediation of environment vulnerabilities; maintain cybersecurity tools and perform incident response; * Create, optimize, and maintain detection rules (correlation rules) in SIEM to identify malicious or anomalous activities; * Manage the vulnerability lifecycle—from identification through remediation—in coordination with other teams; * Support implementation of security best practices in cloud environments, servers, workstations, and networks, aligned with security frameworks; * Support analysis of security failures and propose mitigation solutions; * Ensure proper log collection from assets, meeting security requirements and monitoring rules; * Document procedures, incident analyses, and security configurations; * Prepare technical and executive reports, including evidence, impact assessments, and mitigation recommendations; * Automate processes and develop scripts to support defensive operations; * Collaborate with Red Team, SOC, Architecture, and DevSecOps teams to validate and remediate vulnerabilities; * Monitor threat trends, exploits, emerging attack techniques, and update security tools with newly acquired intelligence. **Requirements and Qualifications** * Completed degree in Information Security, Information Systems, Computer Science, Software Engineering, or related fields; * Experience in Blue Team or equivalent roles; * Experience with key tools: SIEM, EDR or XDR, and Vulnerability Management; * Knowledge of Windows and Linux environments, permissions, services, and common attack vectors; * Knowledge of Firewall, Proxy, VPN, Cloud, and networking; * Familiarity with methodologies: MITRE ATT\&CK, PTES, NIST SP; * Ability to produce clear, concise, and impact-oriented documentation; **Preferred Qualifications:** * Certifications such as: ISO/IEC 27001 and CompTIA Security\+. * Experience with security tools, e.g., Kaspersky antivirus solutions. * Knowledge of the General Data Protection Law (LGPD); **Additional Information** **Employment Type:** CLT. **Benefits:** Transportation allowance \+ Meal voucher \+ Food allowance \+ Health and dental insurance \+ Reimbursement for online courses \+ Life insurance \+ Emotional well-being program, etc. **Work Format:** Hybrid. **Location:** Downtown \- Rio de Janeiro. **Mais Mobi** is a Brazilian technology company providing urban mobility solutions. It delivers electronic fare collection projects—including Riocard Mais, Partiu (Nova Friburgo), and Cartão Macaé—as well as open payment solutions and public transportation digitalization. With comprehensive, flexible, and integrated platforms, it improves operational efficiency and user experience. Its business model is structured around four pillars: customer service, management, loyalty, and payment methods—connecting technology, data, and customer journey within a single ecosystem. It has the capacity to process over 2 billion trips annually, manage more than 9 million cards, and operate a benefits club with approximately 1 million users. Its portfolio includes modular and scalable solutions featuring anti-fraud controls, customer loyalty programs, integration of credit and debit cards into electronic fare collection with zero chargeback, QR Code payments, and sales and support channels via chatbot. Since 2026, Mais Mobi has been part of Prodata Mobility Brasil, a national leader in electronic fare collection, present in over 300 cities—including 12 state capitals—and processing approximately 150 million transactions monthly.