Vercel
Software Engineer, Trust & Safety
$208K–$312K
Hybrid - San Francisco, New York City +1 · Full-time · Posted Sep 12, 2025
- Location
- Hybrid - San Francisco, New York City
San Francisco, California, United States - Experience
- 5+ years of software engineering experience.
About the job
Designs and operates distributed systems, fraud detection services, and LLM tools to prevent abuse across Vercel’s platform.
What you'll do
- Build production systems and detection capabilities to identify and disrupt fraud and abuse.
- Ship LLM-based abuse detection, classification, and prevention systems, including datasets and evaluation pipelines.
- Analyze threat actor behavior and develop internal trust and safety tools with partner teams.
What they ask for
- 5+ years of software engineering experience building large-scale, real-time distributed systems.
- Production coding experience with JavaScript/TypeScript and Python, owning systems end to end.
- Hands-on LLM experience, including prompt engineering, evaluation, and fine-tuning.
- Experience operating production services on AWS.
Nice to have
- Shipped an AI-based trust and safety system to production.
- Experience in abuse prevention, trust and safety, or security engineering; or built or hosted a project on Vercel.
Pay
$208,000 - $312,000 USD base salary
Tools
JavaScript/TypeScript, Python, AWS, LLM
AI focus
Build and ship LLM-driven systems for abuse detection, classification, and prevention, including datasets and evaluation pipelines; detect fraud committed through AI agents.
Model-written summary · the original posting is authoritative