Software Engineer Project Intern; Security Engineering BS​/MS Project Intern San Jose

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

Location:

San Jose

Team:
Technology

Employment Type:

Intern

Job Code: A98543

About the Team:
The security engineering team is missioned to build security services, platforms and technologies, as well as to support cross-functional teams to protect our users, products and infrastructures. In this team you’ll have a unique opportunity to have first-hand exposure to the strategy of the company in key security initiatives, especially in building scalable and secure-by-design systems and solutions. You also have opportunities to go through the whole lifecycle of security products or services, are encouraged to participate in each phase, each part of the projects and have the whole picture of what we are working on.

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.

• Ensure reliable operation of ultra-large-scale security infrastructure meeting strict SLAs
• Design and develop automation platforms for security core systems, enhancing observability for rapid fault detection
• Optimize service reliability, scalability, and performance through systematic improvements
• Build automated solutions supporting rapid iteration of large-scale production clusters
• Participate in OnCall rotation and collaborate with R&D teams on incident resolution

• Undergraduate, or Postgraduate who is currently pursuing a degree/master in Computer Science, Computer Engineering, Information Systems or other STEM disciplines.
• Proficiency in one or more backend programming languages such as Go, Java, Python, C++ or similar.
• Proven experience writing comprehensive automated tests, performing effective code reviews, and debugging issues to ensure high standards of code quality and reliability.

• Experience building and optimizing high-throughput, high-availability systems, with a strong understanding of performance tuning and scalability trade-offs.
• Practical knowledge of backend security principles and best practices, including authentication, authorization, least-privilege access, and secure service-to-service.

By submitting an application for this role, you accept and agree to our global applicant privacy policy, which may be accessed here:

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.

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

Inspiring creativity is at the core of Byte Dance'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.

As Byte Dancers, we strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our Company, and our users. When we create and grow together, the possibilities are limitless. Join us.

Byte Dance 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 Byte Dance, 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.

Byte Dance is committed to providing…