Application Security Engineer Intern, Security Assurance - 2025 Start

undefined ago • All levels • Cyber Security

Job Summary

Job Description

The Security Assurance team at ByteDance builds infrastructures, platforms, and technologies to protect users, products, and infrastructures. This role offers first-hand exposure to key security initiatives, focusing on developing scalable and secure-by-design systems. As a project intern, you will engage in impactful short-term projects, gaining practical skills and a deeper understanding of career interests through on-the-job learning in a fast-paced environment. The internship requires a commitment of at least 3 months.
Must have:
  • Conduct penetration testing to identify security vulnerabilities.
  • Identify risks and resolve potential project issues.
  • Conduct technical security review for new products and features.
  • Provide safety engineering support to product teams.
  • Collaborate with security and product teams on defense-in-depth controls.
  • Monitor and analyze emerging cyber threats, vulnerabilities, and exploits.
  • Currently pursuing a Degree/Master/PhD in Software Development, Computer Science, Computer Engineering, or related.
  • Good knowledge/interest in web application security, mobile app security, network security, operating system internals and hardening, applied cryptography, cloud computing.
  • Solid experience in writing and reviewing code in JavaScript (Node JS), Go, Python, Java, C++, or Rust.
  • Good project management skills and focused teamwork.
Good to have:
  • CTF players, live competitions and hacking events experience.
  • CVEs (excluding vulnerabilities such as XSS, CSRF in random CMS).
  • BugBounty experience with reputable statistics in HackerOne, BugCrowd etc.

Job Details

Responsibilities

  • Continuously conduct penetration testing to identify security vulnerabilities in the staging/production environment.
  • To identify risks and actively take ownership to resolve any potential project issues.
  • Conduct technical security review for any new products and feature requirements.
  • Provide safety engineering support to product teams to help identify potential security flaws in early stages of SDLC.
  • Collaborate closely with other parts of the security team and product teams to design defense-in-depth controls that limit attackers' ability and improve our security postures.
  • Monitor and analyze emerging cyber threats, vulnerabilities, and exploits relevant to our infrastructure and products.

Qualifications

Minimum Qualifications

  • Undergraduate or Postgraduate currently pursuing a Degree/Master/PhD in Software Development, Computer Science, Computer Engineering, or a related technical discipline.
  • Good knowledge/interest in some of these various disciplines: web application security, mobile app security, network security, operating system internals and hardening, applied cryptography, cloud computing.
  • Solid experience in writing and reviewing code in at least one of the following programming languages: JavaScript (Node JS), Go, Python, Java, C++, Rust.
  • Good project management skills and focused teamwork

Preferred Qualifications

  • CTF players, live competitions and hacking events experience.
  • CVEs (excluding vulnerabilities such as XSS, CSRF in random CMS) are preferred.
  • BugBounty experience with reputable statistics in HackerOne, BugCrowd etc.

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About The Company

Founded in 2012, ByteDance's mission is to inspire creativity and enrich life. With a suite of more than a dozen products, including TikTok 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.
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