Security Software Engineer Project Intern (Network Security) - 2026 Start (BS/MS)

Job Description:

About the Team The Network Security team is on the mission to build innovative and enterprise-level network security products and solutions, to protect online businesses from being interrupted by cyber attacks. We're a group of people passionate about challenging the status quo to solve the real world's cybersecurity problems effectively and efficiently. We set audacious goals and strive to achieve them. We believe in teamwork and collaboration and we encourage open and succinct communication. If you share the same value and would like to make an impact on network security, please come join us! As a project intern, you will have the opportunity to engage in impactful short-term projects that provide you with a glimpse of professional real-world experience. You will gain practical skills through on-the-job learning in a fast-paced work environment and develop a deeper understanding of your career interests. Applications will be reviewed on a rolling basis - we encourage you to apply early. Successful candidates must be able to commit to at least 3 months long internship period. Responsibilities: The primary focus of this internship is to enhance the intelligent capabilities of our Web Application Firewall (WAF) to defend against sophisticated automated threats and large-scale application-layer attacks. - Intelligent CC (Challenge Collapsar) Mitigation: Research and develop automated mechanisms for dynamic threshold setting, using real-time traffic analysis to improve precision against HTTP flood attacks and reduce manual configuration. - Smart Bot Behavior Detection: Implement advanced behavioral analysis to distinguish between legitimate users and malicious bots by analyzing request patterns and identifying anomalies. - Operational Efficiency & Accuracy: Optimize the WAF's adaptive learning capabilities to minimize false positives and improve the identification of evasive "gray market" activities

Candidate Requirements:

Minimum Qualifications: - Undergraduate, or Postgraduate who is currently pursuing a degree/master in Computer Science, Computer Engineering, Information Systems or other STEM disciplines. - Familiarity with common security concepts, vulnerabilities, and exploitation techniques. - Experience with at least one programming or scripting language (e.g., Python, Go, Java, JavaScript, C/C++). - Problem-solving mindset, self-driven attitude, and ability to work collaboratively in a fast-paced environment. Preferred Qualifications - Participation in CTF competitions, bug bounty programs, or similar hands-on security challenges. - Published vulnerabilities (e.g., CVEs) or contributions to security research/tools. - Familiarity with cloud and container security, network security, or mobile application security. By submitting an application for this role, you accept and agree to our global applicant privacy policy, which may be accessed here: https://jobs.bytedance.com/en/legal/privacy