firebase
(4)Andrew Rowland
Andrew Rowland is the founder and CEO of Classkick, a Chicago-based education technology company whose real-time digital notebook lets teachers see every student's work as it happens and respond instantly with notes, audio, or chat. A former Chicago high-school math teacher known to his students as 'Mr. Roro,' Rowland taught through Teach for America and started a school robotics program before retraining in computer science and working at Google and YouTube. He built Classkick to scale the thing he loved most about teaching: the 'aha' moment and the fast feedback loop. The platform now reaches more than half of U.S. schools and students in 180-plus countries, running on Firebase infrastructure.
Jeff Delaney
Jeff Delaney is the creator of Fireship, a YouTube channel with over 4 million subscribers known for delivering fast-paced, entertaining programming tutorials - most famously the '100 Seconds of Code' series. Based in Phoenix, Arizona, he turned a side project teaching Firebase and Angular into one of the most influential developer education platforms on the internet, complemented by his course platform fireship.io and an 8,000-member developer Slack community.
Abel Mengistu
Abel Mengistu is the cofounder and CEO of FlutterFlow, the low-code visual app builder that has enabled over 2 million users to create production-ready Flutter applications without deep coding expertise. A former Google senior software engineer who worked on Google Maps and ATAP hardware, he co-founded FlutterFlow in 2020 with Alex Greaves after a failed restaurant-recommendation startup taught them the real bottleneck was app development complexity. Accepted into Y Combinator's Winter 2021 batch after applying past the deadline, they famously survived 'No-sleep November' to build FlutterFlow 1.0 in a single month. The company raised a $25.5M Series A from GV (Google Ventures) in January 2024, has grown to 173 employees, and in 2025 launched Dreamflow - an AI-powered builder that generates production-ready app screens in roughly 10 seconds.
Alex Greaves
Alex Greaves is the Co-Founder and CTO of FlutterFlow, a visual low-code/AI-powered app development platform he co-founded in 2020 alongside fellow ex-Googler Abel Mengistu. Built on Google's Flutter framework, FlutterFlow has grown to serve over 2 million users across 200+ countries, backed by $25.5M in Series A funding led by GV and Gradient Ventures at a ~$170M valuation. A Stanford physics and CS grad who honed his craft on Google Maps' machine learning team, Greaves now leads a platform that lets developers and non-developers alike ship native iOS, Android, and web apps in a fraction of traditional development time.