Offensive Security Engineer Júnior

Role Description This full-time Offensive Security Engineer Júnior role at HOUS3 is a hybrid position based in São Paulo, Brazil, with flexibility for partial work from home. The role involves assisting in planning and executing penetration tests on web, mobile, and infrastructure environments, documenting findings, and supporting remediation efforts with development and operations teams. Responsibilities include performing vulnerability assessments, validating security fixes, and helping maintain tools and lab environments used for offensive security testing. The engineer will collaborate with senior security professionals to improve security methodologies, contribute to internal playbooks and reports, and stay current with emerging threats, exploits, and security best practices.
Qualifications

• Strong foundation in Cybersecurity and Information Security, including core principles, common attack vectors, and security best practices.
• Knowledge of Application Security, such as secure coding concepts, OWASP Top 10, and common web/mobile vulnerabilities.
• Understanding of Network Security, including basic network protocols, firewalls, VPNs, and typical network-based attacks.
• Interest or experience in Security Engineering, including working with security tools, scripting to automate tasks, and supporting secure architectures.
• Familiarity with penetration testing tools (e.g., Burp Suite, Nmap, Metasploit) and vulnerability scanners.
• Ability to read and interpret technical documentation, security advisories, and proof-of-concept exploits.
• Strong analytical and problem-solving skills, with attention to detail and clear written communication for technical reporting.
• Ability to work collaboratively in a hybrid environment, manage time effectively, and adapt to changing priorities.
• Bachelor’s degree in Computer Science, Information Security, or related field, or equivalent practical experience.
• Relevant certifications (e.g., OSCP, eJPT, Security+) are a plus but not required for junior-level candidates.