Software Engineer (AI Agent Security)

The Security Engineering team at ByteDance builds and operates the core systems that protect one of the world's largest internet platforms and its global user community. We tackle challenges that span threat detection and response (TDR), infrastructure protection, and the emerging frontier of AI and LLM system security — all at the scale of TikTok and ByteDance. Our engineers combine deep systems-building expertise with strong security fundamentals to deliver high-impact, production-grade solutions in a fast-paced, globally distributed environment.

If you thrive on ownership, love solving ambiguous problems, and want your work to safeguard products used by billions, this is the team.