Professional experience: I have been coding for fun more than 25 years. I have been a professional coder since the 20th century. I have been building software products out of ideas for since Google just launched in Stanford's computer network. I built engineering teams for 5 years. Now I am trying to make business, customer, product, developers and operation people getting better. Professional Goal: Making things that people want so they spend time to use them or pay for them. Specialties: Dev-ops, Continuous Integration and Delivery. Design and implement software applications or systems. Lead software engineering projects. Recruit engineers and build teams. Always learn new things every day. Entrepreneurship.

Senior Software Engineer` @ worked as tech lead for ETL portion of Edware, a reporting system for smarter balanced assessment outcomes that serves k-12 students, their parents and teachers across half U.S. on behalf of SBAC. The stack includes Linux, Postgres, Python, Rabbitmq. Worked to set up automated unit/integration system for new reporting system on angular 1.0 and grunt and yeoman. Worked with Edware team to build reporting generation system in Python and PostgreSQL. Worked as Dev/op for releasing pipeline and environments with Bcfg2. Has been working as a Dev/Op in building an Adaptive Learning Platform for k-12 students; is building those systems with Amazon Web Service, Microservice Architecture, RESTful APIs, Real Time Data Flow processing, relentless continuous integration and fearless automated testings; is making problems in software development visible and finding solutions to problems. Has been working on a suite that sets up and tears down software defined immutable computing cloud. The suite is based on top of AWS EC2, S3, VPC, IAM, CloudWatch APIs. The suite enables a continuous integration and deployment pipeline to compute student profiles from assessment scores. The computing cloud also utilizes Jenkins, elastic search and Kibana for automation and log analysis, From November 2012 to Present (3 years) Brooklyn, New YorkOwner @ My on-and-off personal consulting business. Worked on mobile applications on Apple iOS and Google Android. Built a text to speech translation app and entered Android Challenger I Phase I 100 finalists out of 1500 submissions in 2007. From December 2006 to Present (8 years 11 months) Greater New York City AreaLead Software Engineer, SVP of Engineering, Chief Technology Officer, @ Joined the company before it was funded. Built and led development for 5 versions of Hotlist.com. Counted as "de Facto" tech-co-founder sometime. Built v1 of the thehotlist.com by myself only in 6 months with Kohana Framework, PHP/Perl/MySQL. It included a back end for Facebook data aggregation and a Ajax front end with Google Map API, jQuery. It helped hotlist to secure angel funding and the site survived Slashdotted from Techcrunch. Built a backend system with MySQL to process data of 40 millions Facebook users, 8.5 millions events, 1 billions RSVPs. It grew to process half millions of registered users, 200 millions Facebook users, 82 millions events, 1 millions locations, and billions of RSVPs, and make millions Facebook API calls daily. The system can take 30 millions hits per month with ease. Led an engineer team to push out 3 different Front End redesigns with different new features within 2 years. hotlist.com was chosen for 100 best website in 2010 by PC Magazine, and nominated as an Official Honoree for 16th Webby Award in 2012. Built an API layer to enable web developers or mobile developers to have consistent data view. Tuned the API system to achieve the goal to have 99% of requests response time under 1 sec. Led development for content based recommendation system and planned to add machine learning and collaborative filtering later. Led technology transfer process to delegate development work to outsource team in Belarus. From October 2008 to April 2013 (4 years 7 months) Greater New York City AreaCofounder & Software Architect @ Built two versions of kickfly. Built kickfly.com v1 to create user customizable 3D objects with textures. Knocked off UX from slide.com. Wrote several customized plugins to Drupal 4/5 with PHP and MySQL. Wrote an Ajax style UI that consists of client side MVC that interacted with kickfly flash player via Javascript and maintains client side's persistence via RESTful API in Drupal. Initiated process of engineering team to use Subversion for source code repository and Trac for bug tracing and documentation. Built kickfly.com v2 with Django and MySQL on AWS EC2 instances and stored textures and 3D models in AWS S3. Integrated Facebook and MySpace social api for viral marketing. kickfly.com v2 was reported by Wired.com during Web 2.0 expo NYC in 2008. From May 2007 to October 2008 (1 year 6 months) Greater New York City AreaProgrammer @ Built the application server layer with LAMP and home-made framework created by Lead Developer. The site was designed as 1. Storing XML based user profiles and user preferences. 2. Matching profiles against preferences via a home-made Bayesian filter in C. 3. Displaying results. 4. Storing user's UI responses. 5. Use Bayesian filter to adjust matching process. The application server generates XML data and uses XSLT to transform XML into HTML, JSON for front end built with Ajax fashion. From August 2006 to April 2007 (9 months) Greater New York City AreaSystem Engineer @ Joined as the second engineer before company was funded. Wrote a matching engine to match numeric predicates against XML messages in C. The engine matched 1.4 billions of matches on a 233 MHz AMD PC in 2004. Built web crawlers to discover RSS feeds inside blogs. It started to crawl 1 millions known blogs and grew up quickly in 2004. Expanded blog ping system built by CTO to accept more ping services and dogfooded it to our matching engine to relay data. It handled firehose from Live Journal successfully. Built crawlers to fetch SEC filings for PubSub.com. PubSub.com delivered Google's IPO filing to users in 3 minutes SEC published it during CTO's interview with Walt Mossberg for Wall Street Journal. Built a program to monitor Linux file system via FAM to monitor ftp uploads from Press Releases. Implemented data transformation process from XML to ASN.1 in XSLT. Built NNTP peering agreement and wrote NNTP client to publish 10,000 non Binary Usenet news in RealTime to PubSub. Same for Gmane. Proposed an idea to use XMPP based fuselet to build a monitoring system for distributed systems and dogfooded it in its own infrastructure. Initiated and took over system administration for 55 servers. Defend an attack successfully without downtime from intruders. Wrote a data log system that stores raw data in log structured file system style. It is similar to MongoDB's idea. Proposed and built an AJAX reporting system to display system information in RealTime to Mozilla via SVG and Ajax updates. Data are stored in memcached and PHP for web layer, C for XMPP feed input. It is like Statsd. From April 2003 to October 2006 (3 years 7 months) Greater New York City AreaContract Programmer (part time) @ Built a prototype system to match XML messages content against existing predicates based on matching systems algorithms with XML, XQuery, XPath, C# and .NetFramework. The system communicated via an IETF drafted protocol called BEEP/APEX. From April 2002 to April 2003 (1 year 1 month) Greater New York City AreaIT Manager @ Managed office network and computers, phone system, email newsletter, website and e-commerce store. Rewrote the existing data entry system to enable concurrent updates to increase data entry performance. Migrated existing e-commerce store from Coldfusion hosting to store.yahoo.com and cutting cost for store operation. From July 2001 to April 2003 (1 year 10 months) Contract Programmer (part time) @ Built a SOAP interface in IIS and MySQL to music database to be used in a p2p stream player. Proposed the interface should tolerate typos to be usable and implemented a simple algorithm in C# .NetFramework, ASP.net to achieve it. From December 2002 to February 2003 (3 months) Greater New York City AreaProduct Manager, Senior Software Engineer @ Joined as the first U.S. engineer before company was funded. Took over the version 1 of viral marketing system and deployed it to production successfully. Took over bugfixes to the Perl/Visual Basic ASP application system and schema changes in Microsoft SQL server Initiated source code control with CVS and bug reporting process with Bugzilla in engineer team Built a coupon system with Visual Basic ASP and Microsoft SQL server for marketing campaign Conceived an algorithms to find influencers in graph of email transactions. Led engineers to build viral email marketing tools as Application Service Provider in Caucho Resin, JSP, Java, Oracle database and ETL tool. From April 2000 to July 2001 (1 year 4 months) Greater New York City AreaSenior Software Engineer @ Integrated NetPerception personalization engine with Intershop E-commerce system. Hacked an asynchronous message system in Perl to enable each page load in Intershop completed before NetPerception data collection process completed. Set up a system to monitor IIS and Sybase database performance in real time. Improved site stability to 0 down time during large AOL campaign. From November 1999 to March 2000 (5 months) Greater New York City AreaResearch Assistant (part time) @ Programmed a reporting system written in Excel spreadsheets on MacOS. Developed specifications and requirements for new system to use database to store data and generate reports. From February 1998 to August 1999 (1 year 7 months) Greater New York City AreaResearch Assistant @ Wrote tutorials for physicists, chemists, biologists on topics such as "How to write programs on supercomputers?"​, "How to write programs on cluster computer systems with PVM or MPI?"​, "How to evoke C code from Fortran and vice versa?"​, "How to use Linpack, Lapack, NAG, IMSL libraries?"​ "How to use HP-UX/Solaris/SunOS/AIX Operating systems?"​ "How to use GNU utilities?"​, "How to use OS/2"​ "How to use Matlab, Maple, Mathematica?"​, and "How to use IRIS Explorer to visualize your data?" Wrote programs in C and Fortran 90 to simulate Ising Model, Spin Glass, Cellular Automaton, Hopfield Neural Network. Wrote programs in C and Fortran 90 that use Simulating Annealing Algorithm to search for approximation solution to Traveling Salesman Problem on 1,000,000 of randomly generated cities. From July 1993 to August 1996 (3 years 2 months) Taipei, TaiwanLieutenant @ Led a mechanized infantry ordinance platoon. Managed a computer network of headquarter consisting of hundreds of workstations and file servers. Responsible for field testing and deployment of experimental C3I system. From July 1991 to June 1993 (2 years) Taoyuan, Taiwan

M.Sc, Computer Science, 3.4 @ New York University From 1996 to 1999 B. Sc, Physics, 3.4 @ National Taiwan University From 1987 to 1991 Eugene Jen is skilled in: Perl, JavaScript, Software Development, MongoDB, Python, MySQL, Subversion, Java, JSON, Web Development, Technical Recruiting, Software Engineering, Distributed Systems, Mobile Applications, AJAX, Linux, PHP, iPhone Application..., Android Development, Amazon Web Services..., Microsoft SQL Server, Android, jQuery, Scalability, Entrepreneurship, Hadoop, PostgreSQL, ansi c, RESTful WebServices, Solr, Agile Project Management, Software Architectural..., Team Leadership, Mathematical Modeling, Data Mining, Machine Learning, Natural Language..., Database Design, Objective-C, Concurrent Programming, R, Matlab, Oracle SQL, Continuous Integration, Continuous Delivery, Git, Apache Storm, ElasticSearch, Test Driven Development