We are the TikTok Account Team, responsible for the account system of all TikTok brand products. We are currently seeking an Account Security Technical Architect to join our team. Here, there are global business scenarios, challenges posed by hundreds of millions of users, and cutting-edge identity authentication technologies.

• Design account security architecture, plan the core system design for identity authentication, session management, and account protection;
• Counter complex security threats, identify and defend against risks such as credential stuffing, phishing, simulated login, brute force cracking, etc., and build a multi-layered protection system including multi-factor authentication, device fingerprinting, risk control engine, etc.;
• Promote cross-team implementation, closely collaborate with product, R&D, data, and risk control teams, and integrate security design into business scenarios;
• Embrace the industry's cutting-edge trends, explore and implement technical standards such as FIDO2, Passkey, OAuth2.1, OpenID Connect, and Zero Trust Architecture, and promote internationalization and security compliance.

Qualifications

Minimum Qualifications
- Bachelor's degree or above, with experience in account security, identity authentication, or large-scale system architecture
- Familiarize with the challenges faced by account security and the corresponding technical countermeasures
- Familiar with protocols such as OAuth2, OIDC, SAML, FIDO2, etc., and have practical experience in architecture or implementation
- Familiar with distributed system architecture, with the ability to design high-concurrency and high-availability systems

Preferred Qualifications

- Possess excellent cross-team communication and facilitation skills