She works to build and maintain the web infrastructure that serves hundreds of millions of users worldwide. She launched one of Pinterest's first Node.js production systems and built a template rendering service that today still serves up all of Pinterest.com's server-rendered HTML. She is currently the tech lead of web performance at Pinterest, and is part of the first team in the company's history to be fully dedicated to making the Pinterest experience faster. Jessica is a self-taught engineer who is happiest when she's learning something new, and passionate about building systems and being part of the mentoring community, both as mentor and mentee. She lives in San Francisco with her husband and two sons.