Site Engineer

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. About the Role: As a growth-focused Fullstack Engineer on our team, you will play a central role in driving user acquisition, conversion, and retention through highly performant and visually stunning web experiences. You will collaborate with cross-functional teams—from marketing to sales to product design—to build dynamic pages, run A/B tests, and optimize conversion funnels. In this role, you’ll design and develop scalable features that enhance the user journey, integrate feedback loops, monitor key metrics, and ensure the reliability of our acquisition funnel. By staying updated on industry trends and focusing on delightful UX, you’ll continuously refine our web properties—ultimately delivering an exceptional experience from first touch through ongoing engagement. 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: Lead complex frontend projects that establish Vercel as a gold standard for brand and product marketing. Collaborate with growth and marketing teams to A/B test landing pages for lead generation across multiple channels. Design and implement scalable applications, web services, and APIs with a focus on user experience and performance. Contribute to our design system and uphold industry-leading UX standards (e.g., interactions, micro-animations, layout c