Stats: Married, 2 children, 1 dog
Born: Seoul, Korea
Residency: Irvine, CA, USA

Technical Skills
IBM DB2 • COBOL / ProLog / C++ / VB / ASP.NET / c# / Python / php • TCP/IP • Internet Architecture • Enterprise Application • Cloud • SaaS / PaaS • Virtualization • e-Business • PeopleCode • PeopleTools • Peoplesoft modules HR, Financials, E&G • SAP R/3 ABAP tier-3 • Oracle 9i • Oracle PL/SQL • ANSI SQL • Microsoft SQL Server • Microsoft IIS • Vantive CRM • SQL • SQR • SQA • OLAP/MDA • Big Data statistics• Data warehousing • LAMP stack • HTML5/css3 • Open source • 3D vision tracking • Processing • Arduino sensors • 3D Printing 

Functional Skills:
Finance • Accounting • Strategic Planning • Large Organization Management • Global Project Management • P&L • Financial Analysis • Analytics • International Operations • New Business Development • Marketing and Sales Management • Client Acquisition & Retention • Logistics & Supply Chain management • Strategic Partnerships • Contract Negotiations • Team Building & Recruitment • Merger & Acquisition • VC • Start-up / Entrepreneur advisement

This was my hacker handle when I was in high school. It is short for Dan The Man. It was mid 80's, and IBM PC had just come out. I got  one; 8 bit 8088 microprocessor, 64K motherboard memory upgraded to 256K memory with 10 Megabyte Maynard hard drive. I also bought a book; "The Peter Norton Programmer's Guide to the IBM PC." That was only book available for PC in the world.  Once you read that one book you knew everything there is to know about personal computer. The world was simple back then. I joined a local computer user group in San Fernando Valley. The group was full of hackers. I wrote COBOL on IBM S/360 during day time, and learned how to write CCL commands from DCL and non-DCL command environments in DEC. I learned how to inject codes, how to salami slice, and how to call backdoor functions to give myself a super user privilege.  All on a crappy home made 300 baud modem.  I thought I would study computer once I go to college. Sadly, hacking did not work out well for me.  It set me back, and I ended up playing catch-up for a long time. No more computer science for me. It was suggested 
I get a job, and study accounting at night to become a CPA.    


Thanks to my decent math skills, I got a job at Countrywide Funding Corporation as a quantitative jock.  It was a small mortgage bank in Pasadena, CA. It grew to be the largest mortgage bank in the world until its demise in 2008 mortgage crisis. This company was ultimately sold to Bank of America for $4 Billion. 

I wrote black box algorithm to calculate the next day's market, and traded Mortgage Backed Securities based on the calculation. I traded $500 million each day to hedge several hundred billion dollars in portfolio. The trade pricing was used to set the daily mortgage rates. The daily mortgage rates were copied by every other financial institutes in the country.  MBS bonds were traded in high-pressure, ultra-accuracy environment. The traders were super-competitive opponents. We fought with who has the best forecasting ability and gut feeling. Often I won. 

Finally I was able to study computer. I started my computer career at IBM Consulting Group. I managed global ERP projects for the multi-national clients. I would have had a great career at IBM, but my luck led me pursue exciting and lucrative career at silicon valley dotcoms. I discovered a small HR software company called PeopleSoft. I thought PeopleSoft was doing everything right; lean, fast, smart, hungry, people centric, performance based, meritocratic... I reported my findings to IBM, and joined PeopleSoft.


PeopleSoft was a small HR software company that grew to be the largest ERP company in the country. And when it did, it got acquired by Oracle for $10 Billion. It was the largest acquisition sum at that time. 

We wrote programs for fortune 500 companies' HR departments to manage their most expensive asset, human capital. I led a group of kick-ass geek commandos who developed a global enterprise upgrade path simply known as Y2K bug fix

Our HR program was written based on best Organizational Behavior, Organizational Development, and Human Resources theories. The program sold well, and the company grew fast. We were hiring 100+ programmers a week. That went on and on and on.  It was called the Dot Com Boom.  You can not add 100 polished programmers easily. We started PeopleSpace University to train smart but not yet polished junior programmers. It was a successful chapter in Learning Organization theory. 

Because of rapid hyper growth, we found out our own HR program did not work that well in certain situations. We felt pain, and we fixed them. Every pain point that we fixed was written into the software as program features. The new program sold even better, and we grew from a startup to fortune 500 in a record time. Our program became the most practical, and progressive HR software in the world. We got voted "Top 10 best companies to work for by Fortune magazine".

Unbeknownst to me, I had become an expert of HR practices used by our thousands of clients.  

Another project was PeopleSoft Corporate VC. It invested in employees' business ideas when PeopleSoft was under siege by Oracle. Oracle eventually acquired PeopleSoft despite Department of Justice's anti-trust lawsuit. There were a lot of mistakes made... Judge Walker presiding in S.F. (not D.C) was one of them. More on this later. One of those companies born out of that craziness was Workday, another Billion dollar SaaS HR software company today. 


Cashing out the stock option was very nice.  But precisely at this point, I became unemployable. Typical hiring managers believed I would not work hard. They knew nothing about me. It was clear they never heard Tubthumping, and 悔しい Kuyashii and 분발 Boonbar; a burning desire to prove them wrong. So I hired myself, opened myself an office, gave myself a title of Entrepreneur.

I wish I can tell you that my road to entrepreneurship was easy and glorious. The short answer is no. Quantitatively speaking, the success to failure ratio of my startup ideas was 1:20, and even the successful ideas pivoted 5 times each before becoming anything. It is another way of saying only 1 out of 100 really, really good ideas which I totally loved, and spent good money and brain power ever made me any money. Another way of looking at it is If I added other 900 ideas I quickly ditched, my success rate becomes 1 to 1,000. Good thing I am always full of ideas, and got the grits to keep going. For this reason I am not a fan of teaching entrepreneurship to just any body. 

One company born out of 1,000 ideas was PeopleSpace. PS offers 1) co-working space, 2) entrepreneur education, and 3) startup acceleration from beautiful and unique space in Irvine, California. We are the Entrepreneur of the Year, recognized by Irvine Chamber of Commerce, and recognized by City of Irvine, County of Orange County, State of California, and the US congress.


The big part of my life involves Judo. Judo is one of those things I enjoy doing, and I've done it for a long time. I am the head instructor at Irvine Judo Club. In my spare time, I donate my time at Judo tournaments as a certified judo referee and coach.

Here is something born out of mixing Judo + Information Technology + Business. 
I founded, one of the world's largest providers of video analytic system used in referee arbitration. Judocare is used in elite national and international point tournaments in over 60 countries in every continent. 

If you read this far, congratulations.

ite inflammate omnia or
Go Forth and Set The World On Fire or
Go West Young Man.