Tantek Çelik

Summary of Qualifications

• Manager & technical leader (10 years). Led and set direction for teams of up to 12.
• Experienced software architect, designer & engineer (15 years). Shipped numerous products.
• Industry veteran: Microsoft, Apple, Oracle and one co-founded startup.
• Award winning product developer. IE5/Mac browser: Macworld 2000 Eddy; Tasman engine: widely acclaimed for Web standards support. Rev 1.0 application: TidBits 1997 Macworld-SF Best of Show.
• Proven innovator. 6 patents issued, 7 pending. 7 W3C standards (CRs). Many more in progress.
• Technology visionary and industry expert. Web standards, XHTML, CSS, semantic markup, data formats, test suites, meta data, social software.
• Communicator. Speaker at tech conferences: SXSW (top moderator), W3C, O'Reilly ETech, BayCHI.

Employment & Products

1. 2004 - presentTechnorati, San Francisco, CA

   2004 July - present Senior Technologist.

   Investigate and define new standards and new technologies companywide. Lead adoption of and implementation of valid semantic XHTML and CSS across all web sites. A primary contributor to the design, development, and launch of politics.technorati.com "Election Watch 2004" site in 13 days.

   Websites Developed and Launched

   • Technorati main site (valid XHTML+CSS green redesign, XHTML strict update)
   • Election Watch 2004 (initial valid XHTML+CSS release, XHTML strict update with new Attention Index, Charts features)

2. 1997 - 2004 JulyMicrosoft Corporation, Mountain View, CA

   2003 Sep - 2004 July Group Lead.

   Group/team/project/product(s): confidential. Directly lead and manage 3 people and help set direction and priorities for overall technology area. Successfully completed investigation phase. Wrote funding and planning proposal for implementation phase, and secured funding from upper management. Wrote job descriptions and secured office space for new phase.

   1998 - 2004 July Diplomat.

   Primary representative to the World Wide Web Consortium (W3C) Cascading Style Sheets (CSS) working group and HyperText Markup Language (HTML) working group (alternate 1998-2000).

   Specifications Produced / Contributions:

   • See below: Publications & Presentations.

   2000 - 2003 Aug Software Development Lead.

   Tasman presentation engine v1. TV Products Group. Led design and implementation of W3C web standards support (Extensible HyperText Markup Language version 1.0 (XHTML 1.0)&XHTML 1.1, most of CSS-2&2.1, DOM 1.0 & most of 2.0), porting (Win32: CE3-4,NT,2000,XP), and code minimization/modularization. Directly led and managed 2-3 software developers (set goals/objectives, wrote performance reviews), and set direction and priorities for overall team of 8 including software testers.

   Products Shipped / Contribution:

   • MSN for Mac OS X / major update of Tasman engine (v0.9).
   • Internet Explorer version 5 for Macintosh (IE5/Mac) (
     1. 5.5b1,
     2. 5.1b2/OSX,
     3. 5.1TP/OSX,
     4. 5.1/OS8-9,
     5. 5.2/OSX
     ) / improved Tasman engine (v0.1).
   • UltimateTV 1.0 - Satellite TV PVR DVR web email convergence device / minor internet support bug fixes.

   1998 - 2000 Software Development Lead.

   Tasman rendering engine v0. Internet Explorer for Macintosh (IE/Mac) team. Led design and implementation of compliant standards support, shipping the first browser ever to fully support CSS-1, HTML 4.0, PNG 1.0, DOM 1.0 HTML, ECMAScript-262, parts of CSS-2, and most of DOM 1.0 Core & some DOM 2.0. Led and managed 3-4 people (set goals/objectives, wrote performance reviews) out of a team of 11-12. Primary representative to W3C CSS&FP working group. Alternate representative to W3C HTML working group. Primary representative to W3C XForms working group (1999-2000).

   Products Shipped:

   • Internet Explorer for Macintosh (
     1. 4.5,
     2. 5.0 with Tasman v0 (first to pass W3C CSS-1 Test Suite)
     )

   1997 - 1998 Senior Software Engineer.

   Macintosh Internet Team. Led design and implementation of Cascading Style Sheets (CSS) browser support and CSS Object Model (CSSOM) support in Internet Explorer for Macintosh 4. Representative to W3C CSS&FP working group. Helped implement Document Object Model (DOM) support, Dynamic HTML (DHTML) support, and fixed numerous bugs in IE/Mac. Maintained Microsoft Component Library (COM) for 68k and PowerPC.

   Products Shipped:

   • Internet Explorer for Macintosh (
     1. 3.01,
     2. 4.0p1,
     3. 4.0,
     4. 4.01
     )
   • Microsoft Component Library for Macintosh (
     1. 2.19,
     2. 2.20,
     3. 2.21
     )

3. 1996 - 19976prime corporation, San Jose, CA

   Vice President.

   One of three principals of a Macintosh software product and consulting services company. Responsible for software engineering, consulting, website content authoring and maintenance, training, technical support, marketing, documenting, billing, sales, booth duty, presenting at MacHack conference.

   Major Products Shipped / Contribution:

   • REV autoversioning software / wrote v1.0 difference engine.
   • OpenContent™ (
     1. DR1,
     2. DR2,
     3. DR3
     ) container application SDK / software engineer.
   • Cyberdog DocBuilder (four releases:
     1. 1.0,
     2. 1.1,
     3. 1.2,
     4. 1.3b
     ) first fully functional container component / primary engineer.

   Services:

   • Development workshops & kitchens (US & Europe)
   • Phone consulting
   • Short-term development projects

4. 1992 - 1996Apple Computer, Inc., Cupertino, CA

   1993 - 1996 Co-Technical Lead.

   OpenDoc project. Implemented Document Shell subsystem, and led implementation of seven other subsystems and a dozen part editors. Identified and wrote critical code sections. Filed patents (see descriptions below). Technically led a team of more than a dozen engineers and provided technical leadership for human interface, marketing, evangelism, management, and developer support. Resolved cross-subsystem, cross-project and cross-company technical issues. Established and maintained process and guidelines for implementation of OpenDoc functionality. Documented and ensured documentation of design and implementation decisions. Presented at Apple World Wide Developers Conference (WWDC) and European Developer's Forum (EDF).

   Products Shipped:

   • OpenDoc component software toolkit (
     1. d2,
     2. A2,
     3. A6,
     4. A6+source,
     5. SOM DR1,
     6. DR2,
     7. DR3,
     8. DR4 1.0 GM
     )

   1992 - 1993 Senior Software Engineer.

   OpenDoc project. Led design and prototyping of the OpenDoc Storage subsystem and contributed to design of seven other subsystems. Contributed to implementation of OpenDoc Storage. Designed and developed turnkey documentation system for efficiently documenting all of the OpenDoc APIs and producing consistently styled and formatted documentation.

   1992 Software Engineer.

   System Storage Manager. One of three engineers who designed and implemented portions of a new system level structured storage manager.

5. 1990 - 1991Oracle Corporation, Redwood City, CA

   Macintosh Software Engineer

   Designed & implemented portions of ORACLE database client & server software for the Macintosh including Server Manager, Pro*C and Pro*Pascal tools using MacApp C++. Maintained low level database kernel archival subsystem, and database kernel startup/shutdown application. Wrote and performed industry standard TP1 RDBMS benchmark tests on Oracle Server for Macintosh.

   Products Shipped:

   • Oracle Server for Macintosh 1.0
   • Oracle for Macintosh v1.2

6. 1989 - 1990Apple Computer, Inc., Cupertino, CA

   System Software Engineer.

   Designed and programmed Macintosh System 7 Toolbox/demo MacApp applications using Edition Manager, Sound, PPC Toolbox as intern, part-time, and full-time.

7. 1989Sun Microsystems, Mountain View, CA

   Technical Software Support Engineer.

   Sun Graphics Group. Called customers initially to determine problem(s), reproduced & documented bugs, and researched long-term problems.

8. 1988 - 1989Stanford University, Stanford, CA

   1989 Dorm Database Architect and Engineer Residential Affairs office.

   Designed, prototyped, implemented & maintained prototype campus-wide dorm database system.

   1988 - 1989 Computer Consultant. Meyer Library & Terman Engineering Cluster.

   Fielded questions, recovered software, eliminated viruses, configured Macintoshes, printers, and AppleTalk networks.