增宽 宋 is currently the finance trading technology leader at 字节跳动 since 2021 and has been a senior backend development engineer at 今日头条 since 2017. They previously worked as a backend development engineer at 腾讯 from 2016 to 2017. With a master's degree in computer science from Beihang University, where they ranked in the top 10 of the national entrance exam, 增宽 has extensive experience in high-concurrency architecture design and optimization within the financial technology sector, including multiple patented innovations.