Threat Detection & Response Engineer — AI/LLM Security

ByteDance; San Jose (CA); On-site; USD 250,000 - 450,000; Full time

Job summary

ByteDance is seeking a Security Engineer to design and build threat detection, prevention, and response systems for its large-scale platforms. You will focus on securing LLM-based systems and AI agent architectures, while owning distributed security infrastructure across global regions.

You will collaborate with cross-functional teams to translate emerging threats into clear product requirements and ship high-impact security capabilities on aggressive timelines.

Qualifications

• Bachelor's degree or above in Computer Science, Computer Engineering, or related field.
• 3+ years hands-on software development experience.
• Proficiency in Go, Java, or Rust with production-ready coding skills.
• Back-end development with cloud-native infra, networking, and scalable services.
• Experience using AI-assisted workflows to accelerate engineering velocity.
• Ability to break down problems and propose practical solutions.

Responsibilities

• Design and build threat detection, prevention, and response systems for large-scale platforms.
• Advance security of LLM-based systems and AI agent architectures.
• Own end-to-end lifecycle of distributed security systems across global regions.
• Collaborate with cross-functional teams to translate threat patterns into security requirements.

Skills

Go

Java

Rust

Backend development

Cloud-native infra

Threat detection

AI workflows

Security engineering

Team collaboration

Education

Bachelor's degree in CS/Engineering

Tools

Kubernetes

Cloud monitoring

Job description

ByteDance is seeking a Security Engineer to design and build threat detection, prevention, and response systems for its large-scale platforms. You will focus on securing LLM-based systems and AI agent architectures, while owning distributed security infrastructure across global regions.

You will collaborate with cross-functional teams to translate emerging threats into clear product requirements and ship high-impact security capabilities on aggressive timelines.