| Objective |  | 
 | My goal is to work on things that matter. Things that touch peoples' lives for the better. | | Notable |  | 
|  | 
Original author of the PHP scripting language
Etsy Advisor
Room77 Advisor
WePay Advisor
MySQL Advisor (until their sale to Oracle)
ActiveState Advisory board member (disbanded after sale to Sophos)
GreatBridge Advisory board member (Company went under)
Apache Software Foundation board of directors in 2000
Apache HTTP Server Core Development Team member
O'Reilly author (Programming PHP, PHP Pocket Reference, parts of WebMaster in a Nutshell)
Frequent speaker on PHP, and Open Source at conferences, universities and user groups around the world
Named to MIT/TechnologyReview's 2003 list of Top 100 Young Innovators
I don't have a cell phone
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| Experience |  | 
|  | Distinguished Engineer   Mar. 2012 - Present     Etsy    Brooklyn, NY 
 
Architecture, i18n, payments, fraud, security | 
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|  | Senior Developer   Aug. 2010 - Apr. 2011     WePay    Palo Alto, CA 
 
Infrastructure engineering and architecturenginx, php-fpm, security, fraud prevention, REST API | 
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|  | Distinguished Engineer   Sept. 2002 - Nov. 2009     Yahoo! Inc.    Sunnyvale, CA 
 
Infrastructure engineering and architecturePHP, Apache, Security, Web Services, Ajax, Web 2.0, and I18nOpen Source compliance workTraining and evangelism work at International Yahoo! officesHeavy yearly conference schedule (20+) | 
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|  | Time Off   June 2001 - Sept. 2002     Dot.com Bomb/baby Vacation    San Francisco, CA 
 
Time off to play with the new baby
finish writing the O'Reilly Programming PHP book and the new Pocket Ref.
and attend countless conferences around the world
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|  | Research   Jan 2000 - May 2001     Linuxcare Inc.    San Francisco, CA 
 
Large-scale app architecture and implementation
Technical due-diligence work during acquisitions
Speaker at Open Source Linux Expo (Sydney, Australia), Bang!inux 2000,2001 (Bangalore, India), ThunderLizard Web Design 2000 (Atlanta), O'Reilly 2000 (Monterey), Borland Conference (San Diego), Linuxworld (San Jose, New York), Linux Revolution 2000 (Seoul, Korea), OSDEM (Brussels), Usenix/European (Stockholm).
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|  | Senior Software Engineer   1999 - 2000     IBM Corporation    RTP, NC 
 
Apache 2.0 Architecture involvement
DAV (Distributed Authoring and Versioning) work
IBM DB2 work
Various Internal IBM projects
Speaker at ApacheCon (San Francisco), IETF(WWW8 in Toronto), O'Reilly99 (Monterey), and TheBazaar (New York).
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|  |  | 
|  | IT Consultant   1996 - 1998     Bell Global Solutions / Bell Emergis    Toronto, Canada 
 
Technologies: Netscape Mail Server, Collabra, Commerce Server, Enterprise Server, Directory Server, 
,LDAP SDK, FrontPage97 Server Extensions, Irix, HTTPD, CGI, NSAPI, ISDN, Cisco switches and routers, NetApp Filers.Participated in the initial screening of opportunities relevant to Internet business solutions.
Defined the conceptual and technical elements of Internet related business products and services.
Provided technical architecture and direction.
Built large-scale Virtual Email service.
Built Advanced Server Farm service.
 
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|  | IT Consultant   1995 - 1996     University of Toronto    Toronto, Canada 
 
Technologies: Cisco TACACS+ protocol, Solaris 2.5, C, Perl5, HTTPD, CGI,
HTML, Cisco ASM, AS5100 terminal servers, Expect, sh, CMU SNMP, RDBMS, Oracle7,
Oracle7 Forms, mSQL, TCP/IP Internals, PPP Internals, Corba, ORB, ILU.Responsible for designing the university's new dial-up service (UTORDial)
Wrote terminal server control software (Cisco TACACS+)
Wrote SQL/HTML accounting system
A lot of early PHP work was done for this project
 
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|  |  | 
|  | IT Consultant   1994 - 1999     Lerdorf Consultants Inc.    Toronto, Canada 
 
Technologies: HTTPD, CGI, FastCGI, JavaScript, Java, HTML, C, Perl, YACC (Bison), 
lex (flex), Netscape Server API (NSAPI), Apache API, ISAPI, NCSA HTTPD internals, Linux, Solaris,
HP-UX, OSF/1, Windows NT, Windows 95, ODBC 2.0, ODBC 3.0, Watcom SQL, RDBMS, Empress, mSQL, 
PostgreSQL, MySQL, Solid, Oracle, Sybase, Adabas-D, IMAP4, POP3, LDAP, ACAP, XML.Developed PHP/FI package which was distributed under the GNU General Public License (GPL).  
Co-authored full PHP/FI rewrite called PHP3.  See http://www.php.net/.  This is quickly becoming one of the web's most popular scripting languages.
Member of Apache Development Group (Apache is the most popular Web server in the world)
Speaker on PHP and Apache at a number of conferences around the world.
Wrote the mod_info module for the Apache web server.
Wrote a CGI redirection module for the Netscape family of web servers using NSAPI.
Wrote CGI redirection patch for the NCSA web server
Assisted in the design and development of countless home pages and commercial web sites.
 
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|  |  | 
|  | IT Consultant   1994 - 1995     Online Construction    Toronto, Canada 
 
Technologies: C, Tcl, Perl, Solaris 2.4, Linux, Xylogics terminal servers.Developed graphical user interface for a Toronto Internet Service Provider
Responsible for all technical issues involved in getting an ISP on-line
 
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|  |  | 
|  | Product Manager   1993 - 1994     Nutec Informática    Mountain View, California 
 
Managed small UNIX/DOS software development team
Developed a unique client/server GUI environment called Nutec Desktop
Managed a tiered distribution network
Attended all major UNIX/DOS/Networking tradeshows and was an invited speaker
at SCO Forum in 1993
Coordinated distributor training sessions
Technical account manager for large accounts throughout USA and Canada
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|  |  | 
|  | UNIX Programmer   1991 - 1993     Nutec Informática    Porto Alegre, Brazil 
 
Technologies: All Intel-based Unices, SunOS, Solaris, HP-UX, OSF/1, MS-Dos,
C, Watcom C, Borland C, Microsoft C, AlphaWindow Standard, No-Loss Data Compression
algorithms - LZ77 and LZ78 variants, XVT, Motif, GUI design.Designed and developed an object-oriented user interface builder
Served as North American liaison for this South American company
 
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|  |  | 
|  | Communications Engineer   1991     NovAtel Communications    Calgary, Canada 
 
Technologies: DSP - TMS320 family, C51, 68HC11 hardware design, TCP/IP, SNA (IBM certified SNA technician), C, SCO Unix, Xenix.Part of "Think Tank" group called the Advanced Product Concept Division
Designed a cellular data communications system
2 Canadian patents were registered in my name under the trademark Dataseeker/CDO (Cellular Data Overlay)
 
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|  |  | 
|  | Chief Support Engineer   1990     Digital Media Networks    Toronto, Canada 
 
Technologies: SunOS 4.1.3, No-Loss Data Compression algorithms.Maintained and performed troubleshooting on live news satellite transmission system
Designed and implemented a forward error correction protocol to ensure data transmission integrity
 
 | 
| Education |  | 
|  | 1988-1993     University of Waterloo    Waterloo, Canada 
 
Honours B.Sc. in Systems Design Engineering - CO-OP Program
Received a University of Waterloo Entrance Scholarship
Workterms with BNR, NT, DMN, NovAtel and Nutec.
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| Publications |  | 
|  | 
R.Lerdorf, "Dynamic Web Pages with PHP3"  WebTechniques  Feb. 1998.R.Lerdorf, "LDAP at Home"  WebTechniques May 1999R.Lerdorf, "Installing LDAP"  WebTechniques May 1999R.Lerdorf, "Configuring Email Clients for LDAP"  WebTechniques May 1999S. Spainhour, R.Eckstein, "WebMaster in a Nutshell Second Edition" June 1999 (wrote a chapter) ISBN 1-56592-325-1R.Lerdorf, "PHP Pocket Reference" January 2000 ISBN  1-56592-769-9R.Lerdorf interviewed by L.Houston for oreilly.com, Feb. 2001R.Lerdorf and others interviewed by HotWired (audio) Feb. 2001R.Lerdorf interviewed by Nexen (in French) April 2001R.Lerdorf, "Scripting the Web with PHP"  Linux Magazine, July 2001R.Lerdorf interviewed by S.Machlis for ComputerWorld, Feb. 2002R.Lerdorf, K. Tatroe, "Programming PHP" March 2002 ISBN  1-56592-610-2R.Lerdorf, interviewed for SitePoint by K.Yank, May 2002R.Lerdorf, "PHP Pocket Reference Second Edition" Nov. 2002 ISBN  0-59600-402-8R.Lerdorf, interviewed for eprairie by J.Schneider, Apr 2003R.Lerdorf, interviewed in Concepts of Programming Languages textbook, Aug. 2003  ISBN 0-321-19362-8D.Kirkpatrick, Fortune article How the Open-Source World Plans to Smack Down Microsoft, and Oracle, and ..., Feb. 2004P.Lavin, The Globe and Mail article Popular PHP is hot, and it's Canadian, Sep. 2005 | 
| Interests |  | 
|  | Traveling, Internet, languages, soccer, and developing Open Source software. |