Software Engineer, Trust & Safety

About Vercel: Vercel is the agentic infrastructure company, freeing people and agents to ship what's next. For more than a decade we've helped builders move from idea to production with speed, security, and exceptional developer experience. Now we're scaling our products for both agents and people to ship and run software, built in the open and trusted by OpenAI, PayPal, Ramp, Supreme, and millions of developers worldwide. As a Software Engineer on our Trust Safety Engineering team at Vercel, you’ll build and operate systems that protect millions of developers and projects from abuse at internet scale. You’ll analyze real-world threat actor behavior, detect emerging abuse patterns across large datasets, and design production-ready mitigations to keep the platform safe without slowing developers. This 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. If you’re based within a pre-determined commuting distance of one of our offices (SF, NY, London, or Berlin), the role includes in-office anchor days on Monday, Tuesday, and Friday. If you're located beyond that distance, the role is fully remote. For location-specific details, please connect with our recruiting team. What you will do: 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. Ab