Software Engineer, Trust & Safety

As a Software Engineer on the Trust and Safety team at Vercel, you will build and operate systems that protect millions of developers and projects from abuse at internet scale. You will analyze real-world threat actor behavior, detect emerging abuse patterns across large datasets, and design production-ready mitigations that keep the platform safe without slowing developers down. The role blends security engineering, data analysis, and applied LLM techniques, working closely with product, infrastructure, and security teams to turn evolving threats into scalable defenses.

Responsibilities

• Analyze threat actor behavior and evolving abuse patterns across large, heterogeneous datasets to inform detection logic, policy decisions, and scalable mitigations.
• Research, prototype, and implement state-of-the-art LLM-driven techniques for abuse detection, classification, and prevention.
• Design and develop production-ready systems that detect and disrupt abusive behavior across the Vercel platform.
• Build, maintain, and fine-tune internal tools, datasets, and evaluation pipelines for trust and safety workflows.
• Collaborate closely with security, product, and infrastructure teams to bring research ideas into stable, scalable production systems.

Qualifications

• 5+ years of experience in abuse prevention, trust and safety, or security engineering.
• Strong programming skills in JavaScript/TypeScript and Python.
• Hands-on experience working with LLMs, including prompt engineering, evaluation, and fine-tuning.
• Solid understanding of cloud infrastructure, including AWS.
• Strong understanding of real-world threat actor behavior and abuse tactics.
• Experience owning systems end to end, from initial research through production deployment and iteration.