Spencer is a Senior Engineering Manager at Mailchimp, an all-in-one marketing platform for growing businesses. Spencer manages teams that develop and improve commerce systems at Mailchimp. Prior to his role at Mailchimp, he led the product engineering team at Reaction Commerce, a distributed-first company that built open source commerce software. Reaction Commerce was acquired by Mailchimp in April 2020. Spencer lives in Colorado with his dog Sawyer.