Mark Edward Johnson
322 College Avenue, #A
Palo Alto, CA 94306
USA
Mobile: 650-283-2712
maejohns at yahoo dottt com
http://www.maejohns.com
Summary of Skills
-----------------
- Experience in both design and analysis of mathematical models in
physics, theoretical biology, operations research and baseball.
- Software development experience, both in exploratory academic
settings as well as in cutting-edge information management, data
mining algorithm development, business intelligence reporting, and
interactive computer graphics. (UNIX, Perl, C/C++, MySQL, php, ...)
- Communication skills which separate me from most other engineers and
mathematicians.
Work Experience
---------------
Netflix
Director of Algorithms and Analytics
Los Gatos, CA
July 2005 - present
- supply-chain modeling
Danger, Inc.
Software Engineer, Reporting and Analytics
Palo Alto, CA
December 2004 - July 2005
- business intelligence
St. Louis Cardinals Baseball Club
Senior Baseball Analyst, Baseball Development
St. Louis, MO
February 2004 - November 2004
- Developed proprietary statistical models of player performance
evaluation.
- Designed and developed internal data warehouses and data marts for
"business" intelligence reporting, as it applies to player and
roster management at the collegiate, minor league and major league
levels.
- Technical Tools: R, Perl, and LAMP technologies (Mac OS X, Apache,
MySQL, PHP).
SportMetrika, Inc.
Founder
October 2003 - present
- Statistical consultant to the Commissioner of Major League
Baseball's Blue Ribbon Panel.
- In collaboration with members of various
sub-committees, developed and analyzed statistical
models of baseball toward evaluation of potential rule
changes.
Rapt, Inc.
Decision Engineer (contract)
San Francisco, CA
May 2003 - July 2003
- Participate with clients in on-site analytic services for pricing and
supply-chain business decisions.
- Restate and remap client business challenges into the existing mathematical
and software framework.
- Technologies: Perl, Excel, Matlab, Proprietary software.
Yahoo!, Inc.
Business Analyst, Yahoo! Commerce
Sunnyvale, CA
September 2002 - April 2003
- Design, implementation and analysis of early phases of Online
Traffic Arbitrage system -- a system for the automated management of
advertising campaigns via search distribution channels (Overture,
Google, etc...).
- Work with production, engineering, business development, and
marketing teams in devising processes for the systematic
experimentation of online experiments for Yahoo! Shopping.
- Develop data collection and analysis requirements for business
intelligence initiatives.
- Technologies: mySQL, MicroStrategy, C/C++, Perl, PHP, Oracle, Excel
Yahoo!, Inc.
Technical Lead, Yahoo! Commerce Data
Sunnyvale, CA
February 2001 - September 2002
- Primary engineering point person for the collection and mining of
user purchase and clickstream data across multiple Yahoo! commerce
properties.
- Interaction with multiple teams from Production, Data Mining,
Engineering, Marketing, Business Development.
- Mathematical algorithm development and tuning: collaborative
filtering and affinity calculations.
- Some 'freelance' work within the company to further promote
mathematical analysis of business models and user behavior toward
maximizing revenues.
- Evaluation of patents and third-party companies for partnership and
acquisition.
- Technologies: FreeBSD, Perl, Apache moule development (C/C++), SQL,
Oracle.
Yahoo!, Inc.
Technical Lead, Yahoo! Classifieds
Santa Clara, CA
November 1999 - February 2001
- Technical Lead, Yahoo! Classifieds. Interaction with members of
engineering, production, human-computer interaction, and customer
care teams. Main technical point person for Classifieds.
- Acted as the leader for a team of 5 engineers developing product for
multi-lingual international launches, billing, and enhanced search
capabilities.
- Designed and implemented scalable and robust architecture solutions
for several high-traffic websites.
- Focus on the operational stability, architectural robustness, and
search technologies on the backend of Yahoo! Classifieds and Yahoo!
Personals, 10,000,000+ pageviews daily.
- Technologies: FreeBSD, Apache, Perl, C/C++, Python, in-house
(PHP-like) templating languages.
Stanford University
Software Engineer/Data Analyst
Stanford, CA
March 1999 - September 1999
- Statistical Analysis of frequency of Single Nucleotide Polymoprhisms
(SNP) in a lab devoted to studying human population genetics
(P. Oefner and L. Cavalli-Sforza)
- Simple development of Perl/CGI web interface to database of SNPs.
Entelos, Inc
Research Engineer, Biological Systems Modeling
Menlo Park, CA
August 1998 - February 1999
- Constructed mathematical models of the human immune system.
- Focused on the differentiation of T-cells into T1/T2 types, based on
initial antigen exposure.
- Performed extensive research of scientific literature in applied and
theoretical immunology.
- Used proprietary systems modelling software in an NT environment.
- Mathematica, Windows NT.
Institute for Mathematics and its Applications, University of Minnesota
Postdoctoral Fellow
Minneapolis, MN
September 1997 - June 1998
- Continued doctoral thesis research in mathematical visualization of
complex geometric objects arising in the study of differential
equations.
- Prepared research papers, delivered seminars and tutorial sessions.
- Developed tools using IRIX (flavor of UNIX), C, OpenGL, Makefile,
Shell scripting.
Education
---------
PhD, Princeton University, Princeton, NJ
Applied and Computational Mathematics
March 1998
- Computational Dynamics
- Dependence of long-time dynamics on spatial inhomogenieties
- Computers and mathematical visualization in the teaching and
research of differential equations.
MA, Princeton University, Princeton, NJ
Applied and Computational Mathematics
May 1995
- Asymptotics, Probability
- Ordinary and Partial Differential Equations
- Approximate Inertial Manifolds
MA, Indiana University, Bloomington, IN
Mathematics
May 1993
- Numerical Analysis
- Chaos Theory
- Partial Differential Equations
- Complex Anaylsis
BS (honors), Indiana University, Bloomington, IN
Computer Science
May 1993
- Interactive Computer Graphics and Spatial Intuition
- Scientific Computing
- Operating Systems
Media
------------------------------
- "Baseball's Secret Formula". Discover Science Channel documentary advisor. Aired July, 2006.
- Fox Sports Net Bay Area post-produced video on "Baseball Statistics". Aired during San Francisco Giants pre-game show several times and as part of the "Giants Magazine" show airing on FSNBA in Summer, 2005.
- Indiana Daily Student Alumni article, Spring, 2005.
- stlcardinals.com interview December, 2004.
Publications
------------------------------
- Contributed two "hacks" to Joe Adler's Baseball Hacks, published by O'Reilly Press, 2006.
- The Oseberg Transition: Visualization of Global Bifurcations
for the Kuramoto-Sivashinsky Equation. Int. J. Bifurc. Chaos,
11, 1, 2001 [with M.S. Jolly and I.G. Kevrekidis].
- Ph.D. Thesis. Computer-Assisted Studies and Visualization of
Nonlinear Phenomena: Two-dimensional Invariant Manifolds,
Global Bifurcations, and Robustness of Global Attractors.
Princeton University, March 1998.
- Two-Dimensional Invariant Manifolds and Global Bifurcations:
Some Approximation and Visualization Studies. Numerical
Algorithms, 14 , 125, 1997 [with M.S. Jolly and I.G. Kevrekidis].
Presentations
------------------------------
- Seminar in Applied Mathematics, E4901: Columbia University. October 2005. (A copy of the power-point slides is available here.)
- Additional presentations available upon request
Software Engineering experiences
--------------------------------
- Data mining of web server logs.
- Design and implementation of business intelligence reporting tools.
- Internet architecture design experience: desigining robust and
scalable solutions to high traffic internet sites.
- 10+ years UNIX experience, to the system administration level.
- 10+ years C experience.
- 4 years Perl experience.
- A few years or more experience in each of the following: Python,
C++, Unix shell scripting, FreeBSD, Linux, Apache Web Servers, OOD.
- Computer graphics and OpenGL. Development of interactive computer
graphics tools.
- Project management experience; great people skills and ability to
communicate complicated ideas to both technical and
non-technical-oriented people alike.
Athletics
---------
- Ironman Triathlete and Bike Racer.
- Selected as a member of U.S. Nationals Team for competition at
the 2002 ITU Long Course World Championships, Nice, France,
September, 2002, and the 2001 ITU Long Course World
Championships, Denmark, August, 2001.
- Two-time sub-11 hour Ironman triathlon finisher. Six years of
triathlon experience.
- Completed 6 marathons, including Boston.
- Member of E'Quipe Le Matin Bike Racing Team, Menlo Park, California.
- Student Manager of Indiana University Men's Basketball Team, 1988-1992.
- Volunteer job at 30-40 hours/week.
- Mentored by Coach Bob Knight.
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