Managed the API service to provide developers with scalable, reliable, and easy-to-use tools for interacting with the TON blockchain.

Delivered a decentralized crypto wallet app and introduced innovative cross-chain and multi-signature features.

Drove product development of payment solutions and payment solutions, including cash pickup services and data query platforms.

Managed the product design team and directed the revamp of trading products.Openex.xyz is a pioneering and user-centric exchange that aims to revolutionize the cryptocurrency landscape. With a focus on user empowerment and freedom, OpenEx provides a beginner-friendly platform that ensures fair transactions and personalized services.

Led the data engineering team and domain experts to build data servides and AI solutions.

Led data scientists and software engineers to optimize machine learning models and improve UX for the marketplace app with 15M active users.About Mercari:Mercari, Inc. (TYO:4385) is an e-commerce company founded in February 2013 and currently operating in the United States and Japan. The company is the first in Japan to reach unicorn status.The Mercari app has been downloaded over 100M times and has more than 15M monthly active users in the US and Japan. Mercari's mission is simple: Create value in a global marketplace where anyone can buy and sell.

Directed the launch of all Longtail Studios' products, including PopStudy, science, and language learning apps.

Built Longtail Studios' iOS apps from scratch and worked with UX designers to create interactive learning modules.(Ubisoft acquired Longtail Studios in 2015. https://www.crunchbase.com/organization/longtail-studios)