Zhen is a senior software engineer at Duolingo. He is a core member of the Growth Infrastructure team, which is responsible for backend microservices that fuels Duolingo’s vibrant social features and retention strategies.

He joined Duolingo in 2020 after graduating from Carnegie Mellon University. He is deeply passionate about designing and implementing robust backend infrastructure that directly impacts millions of users globally. He embraces challenges that come with evolving system designs and adapts services to meet the needs of a growing and diverse global audience.