Security Engineer (Penetration Tester) - Security Assurance

About ByteDance 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. Why Join Us Creation is the core of ByteDance's purpose. Our products are built to help imaginations thrive. This is doubly true of the teams that make our innovations possible. Together, we inspire creativity and enrich life - a mission we aim towards achieving every day. To us, every challenge, no matter how ambiguous, is an opportunity; to learn, to innovate, and to grow as one team. Status quo? Never. Courage? Always. At ByteDance, we create together and grow together. That's how we drive impact - for ourselves, our company, and the users we serve. Join us. About the Security Assurance Team at ByteDance The team is missioned to build infrastructures, 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. Our challenges are not your regular day-to-day technical problems; you'll be part of a team that's developing new solutions to new challenges of a kind not previously addressed by big tech. It's working fast, at scale, and we're making a difference. Responsibilities - Continuously design and conduct penetration testing to determine if infrastructure components, systems and applications meet confidentiality, integrity, authentication, availability, authorisation, and nonrepudiation standards in the staging/production environment. - Translate requirements into test plan, write and execute test scripts or codes in line with standards and procedures to determine vulnerability to attacks. - Certify infrastructure components, systems and applications that meet security standards. - To identify risks and actively take ownership to resolve any potential project issues. - Conduct technical security reviews for any new products and feature requirements. - Provide security engineering support to product teams to help identify potential security flaws in the 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. - Continuously conduct security research and strive to innovate.

- Background in Computer Science, Computer Engineering, Information Systems or other STEM disciplines. - Strong knowledge in some of these various disciplines: web application security, mobile app security, cloud security and thick client security. - 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 Requirements - 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. 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.