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TikTok

Short-form video platform with ads

Security Software Engineer Project Intern - Product Security

Security Engineering & ArchitectureConfirmed live in the last 24 hours
Internship · Summer 2026San Jose, CA, USAIn-person

About the Job

Requirements

  • Currently pursuing an undergraduate or postgraduate degree in Computer Science, Computer Engineering, Information Systems, or another STEM discipline.
  • Have security engineering experience, such as threat modeling, security mitigation development, security tooling development, or privacy engineering.
  • Understand at least one of the following disciplines at an expert level: web application security, mobile app security, network security, operating system internals and hardening, applied cryptography, or cloud computing.
  • Have experience writing and reviewing code in at least one of the following programming languages: JavaScript (Node.js), Go, Python, Java, C++, or Rust.
  • Have strong problem-solving skills and debugging and troubleshooting skills.
  • Commit to an internship period of at least three months.

Responsibilities

  • Participate in security assessments, such as penetration tests on web or mobile applications.
  • Take part in security-focused tooling development projects, such as code review and API testing; the tools developed will benefit large language model integration.
  • Assist in building evaluations, harnesses, and optimizations for existing artificial intelligence tooling and systems for security review.
  • Improve the use of large language models in the software development lifecycle process and enhance infrastructure security.

Desired Qualifications

  • Experience with natural language processing or large language models.
  • Knowledge of distributed systems, edge computing, or high-performance network programming.

About the Company

TikTok

Short-form video platform with ads

TikTok is a short-form mobile video platform that lets people create, discover, and share quick videos. Users upload vertical clips, edit them with built-in tools, and browse a personalized feed powered by an algorithm that highlights relevant content. Advertisers can use in-feed ads, branded hashtags, and the Business Center to plan and measure campaigns, making it easy for brands to reach a global audience. Its goal is to inspire creativity and bring joy by helping people express themselves and by connecting brands with a wide audience.

Company size
10,001+
Company stage
Grant
Total funding
$740K
Headquarters
Santa Monica, CA
Founded
2016

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