It4us is a cybersecurity specialist and a national reference in implementing, operating, and evolving high-complexity Security Operations Centers (SOCs). We have delivered over **1,000 projects with excellence**, maintain an installed base of more than **100 active clients**, and work directly with the market’s leading solutions, including **SIEM, SOAR, EDR, and global-leading platforms**. If you seek to work at the **core of corporate security**, within a high-performance technical environment that is collaborative and deeply immersed in cybersecurity, this position is for you. **Why work at It4us?** **Exposure to major clients and complex environments** * You will directly participate in real SOC operations, handling high-volume data and multiple threat vectors. **Accelerated development** * Leading training, content, and technologies—we evolve rapidly, and so will you. **Flat organizational structure** * Direct interaction with experts, leadership, and C-level executives. Knowledge exchange is daily and practical. **Culture that values knowledge** * Autonomy, curiosity, and continuous improvement are fundamental pillars of our day-to-day work. **Responsibilities and duties** We are seeking a **Junior Penetration Tester** to join It4us’s **Red Team**, contributing to offensive security activities and intrusion testing aimed at identifying risks and security gaps in real-world environments. **Responsibilities** * Conduct offensive penetration tests on web applications, networks, APIs, and systems. * Support the planning and execution of simulated Red Team attacks. * Assist in vulnerability analysis and controlled exploitation. * Produce clear, technically sound evidence and reports. * Collaborate with the Blue Team and Security Engineering teams to validate remediations. * Continuously advance proficiency in offensive methodologies, techniques, and tools. **Requirements and qualifications** * Basic knowledge of offensive security and penetration testing (OWASP, MITRE ATT&CK, etc.). * Understanding of networking, protocols, Linux, and web environments. * Familiarity with tools such as: Burp Suite, Nmap, SQLmap, Nikto, Metasploit. * Genuine interest in Red Team operations and Ethical Hacking. **Preferred qualifications** * Participation in CTFs, offensive labs, and hands-on projects. * Scripting (Python, Bash, PowerShell). * Experience with exploitation, pivoting, and reconnaissance. * Entry-level certifications such as eJPT, eWPT, CEH, or OSCP (beginner level). **Additional information** * **Contract type:** Independent contractor (PJ) * **Work modality:** 100% remote * **Start date:** Immediate **Benefits and incentives** * Structured career path, with semi-annual or annual reviews. * Incentives for technical courses and certifications. * Birthday day off. **How to apply** Apply now and join one of Brazil’s most specialized cybersecurity teams. By applying, you also authorize us to evaluate your profile for future openings. **It4us Cyber Security** is a company serving the corporate market, with a proven track record of successfully executing cybersecurity and infrastructure projects. Our certified professionals bring extensive experience in the technology sector, delivering quality and commitment—our team has completed over 900 projects for major enterprises, achieving high client satisfaction rates regarding delivery and timelines. In the process, we’ve helped build more than 15 of Brazil’s largest Security Monitoring Centers, including those of TIM, Claro, CIP, PMSP, and Itaú… Our differentiator lies in investing in and delivering information security projects and solutions—fully understanding the complexity of large enterprises, their environments, and people. It4us Cy