Rosemary Arnold is a highly experienced engineer currently serving as a Staff Engineer at Peloton Interactive since September 2018, with previous roles as a Senior Site Reliability Engineer, Senior Software Engineer, and Software Engineer. Prior experience includes leadership as a Lead Developer at Acadaca, where Rosemary oversaw three mobile eCommerce projects and enhanced Magento features for clients. Earlier roles involved consulting at Drake Hardware, where multiple web applications were developed and maintained using various programming technologies, and internships at Lehman Brothers, focusing on Java applications and database communication. Rosemary holds a Bachelor of Science degree in Computer Science from the University of Illinois Urbana-Champaign and several certificates in strategy and leadership from Harvard Business School Online.