Site Engineer

Vercel is an agentic infrastructure company that helps people and agents ship and run software with speed, security, and an exceptional developer experience. The Site Engineer role focuses on building high-performance web experiences that drive user acquisition, conversion, and retention, while collaborating with growth, marketing, sales, design, and product teams. The role includes developing scalable applications and APIs, running A/B tests, optimizing conversion funnels, and improving UX, reliability, and engineering processes.

Responsibilities:

• 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 consistency)
• Continuously improve engineering processes, tools, and systems to scale the codebase and team productivity
• Troubleshoot and fix bugs, delivering quick, high-quality resolutions
• Write technical documents and maintain internal tools to empower other teams
• Review and provide feedback on contributions from other engineers
• Identify bottlenecks and optimize for conversion, speed, and reliability across the funnel
• Critically think about foundational areas of the Vercel application to ensure ease of maintenance and future extensibility

Requirements:

• 5+ years of professional frontend engineering experience (React, JavaScript, Tailwind CSS, or similar)
• Strong proficiency in Next.js and familiarity with modern frontend frameworks
• Full stack experience (comfortable designing or consuming APIs and working with various services)
• Deep understanding of SEO principles and best practices—especially around performance, accessibility, and search optimization
• Proven knowledge of A/B testing concepts and conversion rate optimization
• Stellar cross-functional communication skills—you can work effectively with marketing, design, and product to reach shared goals
• Eye for good user experiences and a knack for “getting the visuals right.”
• Desire to work in a fast-paced environment, continuously grow, and master your craft
• Have familiarity with the Vercel platform
• Comfortable using Tailwind CSS
• Background in web design or interest in design systems
• Interest in developer tooling domain