ABOUT VERCEL: Vercel is the agentic infrastructure company. We free people and agents to ship what’s next. For more than a decade, Vercel has shaped how the web is built. As the team behind Next.js, v0, and AI SDK, we create products that help builders move from idea to production with speed, security, and exceptional developer experience. Now, software is entering a new era, and the next generation of products will not just be used by people. They will be built, extended, and operated by agents. We are building the platform for that future, trusted by companies like OpenAI, PayPal, Ramp, Supreme, and millions of developers worldwide. Whether you’re building our products, supporting our customers, growing our community, or shaping our story, you’ll help define what comes next. ABOUT THE ROLE: As a member of the CDN Infrastructure team, you will help to scale and improve our services, availability and reliability by working with other backend engineers and our product team to identify problems, and build solutions that delight developers building on Vercel. In this role, you’ll wear many hats—designing systems, writing code, and diving into production to solve tough problems. As part of the CDN Infrastructure team, you’ll help build and run Vercel’s built-in CDN, powering framework-aware routing, caching, and high-performance traffic delivery. We work with both our own infrastructure and cloud providers’ platforms to handle networking, TLS termination, routing, storage, and caching, all with the goal of creating innovative edge services that make the web faster and more reliable. WHAT YOU WILL DO: * Create new primitives to expand the product feature set of Vercel CDN * Optimize the Vercel CDN experience to improve reliability and lower latency * Analyze web latency to find sources of tail latency * Advance the developer experience for 15+ developers working primarily in Lua * Other examples of what you would work on: * https://vercel.com/blog/how-we-made-global-routing-faster-with-bloom-filters * https://vercel.com/blog/cdn-request-collapsing ABOUT YOU: * 5+ years of experience with Lua * Are knowledgeable and experienced with web servers, & HTTP * Intrigued about tackling the complex challenges serving petabytes of data and billions of requests to millions of people * A collaborative team player who believes in the power of strong teams to drive significant changes and innovation * Are keen to experiment, challenge norms and deliver secure and reliable systems that delight Vercel's users BONUS IF YOU: * Comfortable in Golang BENEFITS: * Competitive compensation package, including equity. * Inclusive Healthcare Package. * Learn and Grow - we provide mentorship and send you to events that help you build your network and skills. * Flexible Time Off. * We will provide you the gear you need to do your role, and a WFH budget for you to outfit your space as needed. The San Francisco, CA base pay range for this role is $196,000 - $280,000. Actual salary will be based on job-related skills, experience, and location. Compensation outside of San Francisco may be adjusted based on employee location. The total compensation package may include benefits, equity-based compensation, and eligibility for a company bonus or variable pay program depending on the role. Your recruiter can share more details during the hiring process.  Vercel is committed to fostering and empowering an inclusive community within our organization. We do not discriminate on the basis of race, religion, color, gender expression or identity, sexual orientation, national origin, citizenship, age, marital status, veteran status, disability status, or any other characteristic protected by law. Vercel encourages everyone to apply for our available positions, even if they don't necessarily check every box on the job description.