• Improved Amazon mobile shopping experience on iOS and Android.• Two times winner of Amazon Mobile Shopping Hackathon.• Led new features development on Alexa devices and Alexa mobile apps.

• Led nearby event map view design and development and improved ticket conversion rate by 10%• Developed search suggestion and search history using 10% time and improved search accuracy by 20%• Led new iOS 9 feature Core Spotlight Search implementation. Collaborated with Apple to improve APIs during beta phase. Successfully released Ticketmaster iOS app alongside the iOS 9 public launch• Winner of 2015 Ticketmaster Hackathon and successfully pushed the winning features into production• Write clean production code and unit tests in Objective-C• Develop frameworks for vendors and clients for apps integration• Collaborate with Product and Design teams to develop prototype apps and new features• Collaborate with QA team to develop test automation solution• Fluent in Object-Oriented Programming, Test Driven Development, Git and Agile/Scrum methodology• Code review and mentor interns and junior engineers

• Developed an iOS live streaming app that streams video from iPad to website via Akamai CDN• Integrated with third party libraries to handle RTMP encoding• Implemented location and connection speed detection to optimize streaming speed• Synchronized the app with oprah.com website to manipulate live stream banner

• Ported a Matlab application into an iPad app from inception to app store submission• Reduced app start time by 70% by using Grand Central Dispatch to optimize the initialization algorithm• Used various iOS design patterns such as model-view-controller, Blocks and CategoryPresented and consulted the AMPAS committee regarding the benefits of native code vs. cross-platform tools such as Facebook React in mobile app development while balancing the budget and app quality

• Subject matter expert in Toyota electric vehicle mobile technologies• Resolved insufficient prototype vehicles and bench equipment issues by creating a vehicle simulator iOS app. It simulated over 90% of Prius Plug-In Hybrid and RAV4 EV charge management functionality. Resulted in over quarter million cost saving• Assisted vendor’s engineering team to close 90% P1 issues by leading onsite technical sessions and deep dived into Toyota EV technologies and conducted remote vehicle testing• Managed the Toyota Entune ECO Dashboard iOS/Android project from inception. Successfully released the apps within the original timeline and budget.• Developed an emergency plan with post-production support teams in US and Japan to resolve a critical bug in MPG calculation. Fixed all end user data in 48 hours without service interruption

• Architected and developed a new bench program platform that shortened test program development time by 50%. Provided on-the-fly test limits and test flow modification without recompilation• Led Yield Management Software project and reduced yield analysis lead time by 50%. Ownership in vendor evaluation and qualification, contract negotiation and software integration with existing MES• Managed package scan equipment conversion project. Developed old to new equipment transition plan, handled scan program conversion and organized technician and engineering training• Identified critical data collection issues from a major customer’s defect material claim. Presented accurate data and successfully convinced customer to withdraw claim. Saved over $200,000 in restocking material• Resolved a critical process deficiency issue in a subcontractor by improving processes and procedures. Recouped 90% yield loss and reduced monthly material repair cost by 90%• Implemented an automated SMS alert system to broadcast critical production issues in real time• Developed various tools and scripts to handle tasks such as test data correlation and statistical analysis• Supervised technicians and mentored interns and new hires