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

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.

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 include 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.

Job Information

Compensation Description (Hourly): The hourly rate range for this position in the selected city is $45- $60. Benefits may vary depending on the nature of employment and the country work location. Interns have day one access to health insurance, life insurance, wellbeing benefits and more. Interns also receive 10 paid holidays per year and paid sick time (56 hours if hired in first half of year, 40 if hired in second half of year). Interns who are not working 100% remote may also be eligible for housing allowance.

The Company reserves the right to modify or change these benefits programs at any time, with or without notice.

About Us

Founded in 2012, ByteDance's mission is to inspire creativity and enrich life. With a suite of more than a dozen products, including TikTok, Lemon8, CapCut and Pico as well as platforms specific to the China market, including Toutiao, Douyin, and Xigua, ByteDance has made it easier and more fun for people to connect with, consume, and create content.

Why Join ByteDance

Inspiring creativity is at the core of ByteDance's mission. Our innovative products are built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and enrich life - a mission we work towards every day.

Diversity & Inclusion

ByteDance is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At ByteDance, our mission is to inspire creativity and enrich life. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.