INTERNET SOFTWARE ENGINEERING EXECUTIVE Experience in building large scale Internet applications and services at top tier companies and start-ups. Leads with passion for building game changing products and high performing teams. Delivers engineering craftsmanship with a can-do attitude. A change agent who can influence executives and inspire teams to deliver above and beyond results. Broad expertise in development, operations, and product management blended with technical depth to lead hands-on engineers. • Build highly scalable Internet application • Lead high performing global engineering teams • Lead large strategic enterprise wide initiatives • Fast time to market with agile and test driven approach • Customer and data-driven innovation • Performance, availability, scalability, quality Leadership style: • Do the right thing with integrity • Think big, think different, everything is possible • Open, direct, and honest culture • Proactive with backbone to challenge status quo • Action and results speak louder than words • Always curious, learning, and improving • Hire and expect the best • Lead by example and empowerment

VP of Engineering @ We are building the technology platform to transform the massive $400B+ global beauty industry. Think Uber for transportation and OpenTable for restaurants. Since 2011, StyleSeat has experienced explosive growth and on track to book $1B+ of appointment this year alone. We have great support from tier 1 investors and have recently closed $26M series B funding. Consumers use StyleSeat to search, book and pay for services. Customers love the convenience of booking appointments anytime, often last minute or when the salon is closed. They also love Uber-like wallet-free paying experience without the awkward tip moment. Download our 5 star app now and see the 2000+ glowing customer reviews. For beauty professionals, StyleSeat is a life-changing platform. On average, our customers grow their business 70% in the first 18 months. We help 330,000+ small business owners grow their revenue by providing 24/7 appointment booking, client relationship management, new client marketing, and online payments. Our customers love us and our growth has been almost entirely fueled by word of mouth. People thrive working here. We are obsessed with building a great culture and making StyleSeat the very best place to work. Find someone you know at StyleSeat and talk to them; many will tell you this is the best company they have ever worked for. Being an engineer means: data driven decision-making, daily releases, clear ownership, constant learning, great partnership with product, help millions of customers everyday, and the ability to affect our growth directly with your awesome work. Every engineer on our team is making a huge impact on our customers. Come join us! We use Python, Django, AngularJS, MySQL, Redshift, Hadoop, Spark, Flask, ElasticSearch, RabbitMQ, Redis, Celery, CircleCI, Docker, Vagrant, Fabric, Ansible, AWS. We do weekly engineering breakfasts to share technical ideas, monthly team dinners, quarterly hackathons, and many ad hoc team social events. From 2015 to Present (less than a year) San Francisco Bay AreaAdvisor @ From 2015 to Present (less than a year) VP of Engineering @ Lead full stack engineering including web, mobile, API, big data. Technologies: Python/Django, Swift, Java, Go, MySQL, Kafka, Redis, Cassandra, Celery, Elastic Search, Hadoop, AWS. - Transformed all web products from desktop web to mobile ready Responsive Design in 1 month - Redesigned home page and increased ticket purchase conversion by more than 300% - Created experimentation platform to enable multivariant testing From 2014 to 2015 (1 year) San Francisco Bay AreaPayments Applications - Sr. Engineering Director @ Lead the Payments Customer Engineering (PCE) team of ~250 software developers at 4 global locations with $25M headcount budget. The PCE team is at the heart of PayPal, responsible for ~30 highly scalable and reliable online Payments products that generate ~100B annual transactions, ~4B annual revenue with 117M active users, 190 markets, and 25 currencies. - Improved the Time to Market velocity from years to months to weeks - Delivered new PayPal checkout experience MVP on web, iPad, iPhone, and Android on newly designed platform in less than 3 months - Created a small team to optimize conversion rate and delivered >200 bps lift and ~$100M revenue by pioneering test and learn at PayPal - Re-designed the checkout experience from redirect to light box experience that delivered ~ 50bps conversion lift - Move Payments API from SOAP to REST - Moved monolithic CGI application to SOA while keeping the legacy systems running - Reduced live site issues by 10-fold and site performance by 40% in first 6 months - Transformed development model from Waterfall to Agile with high say do ratio From 2011 to 2014 (3 years) San Jose, CASr. Engineering Director @ Senior Engineering Director 2007 – 2010 Engineering Director 2006 – 2007 Created company wide Site Integrity Program that successfully improved Yahoo properties' availability, performance, and quality resulting in higher customer satisfaction. • Most properties had no site integrity baseline data when the program started. Established availability and performance standards and policies and achieved universal adoption in less than 1 year. • Achieved industry leading availability/uptime for key properties (Front Page, News, Sports, Flickr, etc.) by eliminating single point of failures, improving capacity planning, reducing dependencies, and proactive monitoring. • Managed a team of technical experts who formulated and shared best practices with architectural reviews and performance bottleneck analysis. All key properties' performance improved – multiple properties page load time improved by 100% by minimizing number of HTTP requests, converting to AJAX, reducing image size, etc. From 2006 to 2010 (4 years) Engineering Director @ Engineering Director 2004 – 2006 Senior Engineering / Product Manager 2000 – 2004 Engineering Manager 1997 – 2000 Staff Engineer / Acting Manager 1995 – 1997 Member of Technical Staff 1994 – 1995 Progressed from senior engineer to first line manager, 2nd line manager, then engineering director. Managed large scale global product development in web application, web service, distributed system, identity, platform, security, tools, and E-commerce software. From 1994 to 2006 (12 years) Senior Software Developer @ From 1991 to 1994 (3 years)

M.S. @ University of Arizona April Chang is skilled in: Software Engineering, Mobile Devices, Management, Scalability, Web Applications, Cross-functional Team..., Cloud Computing, Web Services, REST, Architectures, E-commerce, SOA, Java, Enterprise Software, Agile Methodologies, User Experience, Start-ups, Distributed Systems, Product Management, Architecture