Software Engineer, Trust & Safety

About this role

Vercel seeks a Software Engineer for Trust & Safety to build and operate abuse detection systems protecting millions of developers on their platform. You'll analyze threat patterns, develop LLM-driven detection techniques, and design production systems that combat platform abuse at scale while maintaining developer velocity.

What you'll do

• Analyze threat actor behavior and abuse patterns across large datasets to inform detection logic and mitigation strategies
• Research and implement LLM-driven techniques for abuse detection, classification, and prevention
• Design and develop production-ready systems that detect and disrupt abusive behavior across Vercel
• Build and maintain internal tools, datasets, and evaluation pipelines for trust and safety workflows
• Collaborate with security, product, and infrastructure teams to transition research into stable, scalable systems
• Own systems end-to-end from initial research through production deployment and iteration

What they're looking for

• JavaScript/TypeScript and Python programming
• LLM experience including prompt engineering, evaluation, and fine-tuning
• Abuse prevention, trust & safety, or security engineering
• AWS cloud infrastructure
• Understanding of real-world threat actor behavior and tactics
• Data analysis across large, heterogeneous datasets
• Production systems design and deployment
• Cross-team collaboration and communication

Benefits

• Competitive compensation with equity ($208,000–$312,000 base in SF)
• Inclusive healthcare package
• Mentorship and professional development opportunities
• Flexible time off
• Work-from-home budget and equipment provision