I am a member of the engineering teams at Upwork, an online workplace for the world – connecting clients with top freelance professionals from San Francisco to Sao Paulo. We are the world's largest freelancer marketplace. At Upwork, I am head of technology where the data science, infrastructure, quality, tech ops, IT, and application engineering teams report to me. In previous roles, I've: * Led the engineering team for an incubator inside eBay that inspired the employee base and was a PR machine for the company. Notable projects the team produced included (but are not limited to): Conjoining two major marketplaces Ariba with eBay, Rich Pin integration with Pinterest, mobile apps in emerging markets (Russia, Brazil), the eBay Motors and eBay Fashion apps, RedLaser, eBay Valet, RedLaser for Google Glass, and digital goods. * Led the teams that launched native mobile Netflix applications running on iOS, Apple TV and Android in LATAM, UK, and IE. * Helped launch the inaugural version of Netflix on Android and led several of the early product pushes. * Helped scale eBay's mobile business from 200M gross merchandise volume to 2B+ and in the process grow the engineering team from just me to over 80+ contractors and FTEs. * Managed global engineering organizations in mobile (web and native mobile) with multiple applications downloaded by millions of customers. * Managed all facets of the software development process and product architecture: QA, R&D, Documentation, and Sustaining Engineering in both enterprise and consumer software applications. * Built a social network that was sold to a publicly traded company and whose side projects have been featured by premium sites such as MakeUseOf and TechCrunch.

SVP of Engineering @ Head of technology at Upwork which includes: data science, infrastructure, quality, tech ops, and application engineering. From June 2015 to Present (7 months) San Francisco Bay AreaOwner @ Entity for various hobby projects: real, imagined, still-born, and aborted. From May 2012 to Present (3 years 8 months) Sr. Director of Engineering and Group CTO, Core Product & Technology @ In charge of technical oversight for the core product and technology group at eBay Enterprise comprising of Magento, Retail Order Management, and Store Fulfillment. My primary focus during this time was overseeing product strategy and the technical roadmap for Retail Order Management and Store Fulfillment. From February 2015 to April 2015 (3 months) Sr. Director of Engineering, Innovation and New Ventures @ Lead innovation engineering teams across web and native mobile stacks. Provided technical and business development support for strategic partnerships. Provided technical and business guidance for M&A initiatives. From December 2012 to February 2015 (2 years 3 months) Mobile Development Advisor @ Advised DoctorBase on strategy, best practices, and on-call architectural guidance/SDK troubleshooting for mobile platforms. From July 2012 to January 2015 (2 years 7 months) San Francisco Bay AreaDirector of Engineering, iOS and Android @ Lead Android and Apple platform efforts at Netflix. From March 2011 to May 2012 (1 year 3 months) Director of Engineering, Mobile and Platform Business Solutions @ Lead mobile and incubator engineering efforts at eBay. From May 2009 to March 2011 (1 year 11 months) Owner @ Built several small websites and mobile applications, most prominently AyeNotes. From October 2008 to March 2009 (6 months) Director of Engineering @ Trintech acquired Movaris. See Director of Engineering at Movaris. From February 2008 to August 2008 (7 months) CEO/Co-Founder @ Co-founded a social network that acquired 60K users over 2 years which was featured on [TechCrunch](http://tinyurl.com/2bqwqx) after the public beta concluded and eventually sold to BigString Corp. for stock as announced in this [Reuters Newswire](http://tinyurl.com/6o37o6). From July 2006 to August 2008 (2 years 2 months) Director of Engineering @ Lead nearly all engineering activites towards the end tenure. From September 2004 to February 2008 (3 years 6 months) Engineering Manager @ Lead the engineering team that built Saba Performance and Saba Exchange. From September 1999 to September 2004 (5 years 1 month)

M.S., Industrial Engineering and Operations Research @ U.C. Berkeley From 1998 to 1999 Minor, Computer Science @ U.C. Berkeley From 1993 to 1998 B.S., Industrial Engineering and Operations Research @ U.C. Berkeley From 1993 to 1997 Han-Shen Yuan is skilled in: Android, iOS, JavaScript, HTML, Ruby, Ruby on Rails, Java, Objective-C, RDBMS, Oracle, SOA, Web Services, PHP, LAMP, EC2