Hyosung Han Email & Phone Number

Los Angeles, Ca, Us

Los Angeles, California, Us

Foster City, California, Us

Los Angeles, California, Us

Los Angeles, California, Us

Los Angeles, Ca, Us

• Responsible for technical architecture at textPlus – a pioneer in the mobile messaging space that has raised over $50MM in funding, supporting over 13MM of messages and 380,000 calls every day from over 7MM MAUs.• Built and lead engineering team of 16 members building carrier-grade infrastructure, mobile middleware and user-facing applications used by 1,000,000+ daily active users.• Lead in the coordination of development projects with all external partners including T-Mobile, Syniverse, and ThreeUK to support MVNO, MMS, and international calling capabilities • Designed a highly scalable platform architecture built using SOA and REST principles on Cassandra and CouchBase NoSQL technologies • Planned the logistics, development and deployment of a seamless userbase migration from legacy to new platform for 60MM user accounts without downtime.

• Lead the technical design of client and server architecture for ActionAllstars.com, an online, multiplayer virtual world. The system provides an immersive, real-time experience through a web-based Adobe Flex client, and is designed to scale modularly for the addition of new content as well as horizontal server scaling to accommodate an increasing user base.• As the head of the technology group encompassing engineering, IT, and QA, execute the development and timely launch of new product features.• Define and enforce the production-wide processes for product development, such as content management and publishing procedures, source code management/security policies, and application testing and launch protocols.

Redwood City, Ca, Us

• Design of EA’s next-generation user registry, community, and commerce system with the EA Global Platforms Group. The system is designed to accommodate EA’s franchise and region-specific needs with a non-rigid data taxonomy and platform- agnostic REST-style API.• Collaborated with the global IT teams to design a scalable infrastructure to deploy EA’s next-gen platform on a global scale.• Lead the design and launch of EA Mobile’s marketing and merchandising systems as the head the Enabling Technologies engineering group

• Responsible for design, development, and launch of marketing and merchandising systems to markets in North/South America and Europe as the engineering head of Enabling Technologies group. These systems include:-- JAMDAT’s WAP-based merchandising portal where users can browse, purchase, and download games, ringtones, and images.-- Off-deck content purchasing and marketing systems such as SMS shortcode purchasing, subscription content channels, and retail card/POS.-- jamdat.com website catalog for purchasing of mobile content from the PC.• Design and development in-house technologies to support the above products:-- Mobile-specific J2EE-based CMS system for management of JAMDAT’s content catalog, including data entry, content storage, and SKU launch/submissions tracking-- Subscription management system to support recurrent-billing price methods of mobile content-- Integration with all major North American Carrier billing and provisioning systems• Participated with the conceptual design, user experience, and strategic planning of marketing and sales portals with Sales and Marketing teams in JAMDAT’s global offices• Managed engineering teams in LA, Romania, and Hyderabad for development of above products.