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    John Graham-Cumming

    CTO at Cloudflare, Inc.

    John Graham-Cumming is the Chief Technology Officer (CTO) at Cloudflare, Inc., a leading web infrastructure and website security company.12 He joined Cloudflare in December 2011, initially as a programmer, and has since played a pivotal role in the company's technological advancements.14

    Background and Education

    John holds a Bachelor of Arts in Mathematics and Computation, a Master of Arts in Mathematics and Computation, and a Doctor of Philosophy (DPhil) in Formal Methods for Secure Systems, all from the University of Oxford.34

    Career Highlights

    • Cloudflare: Started as a programmer in 2011 and rose to the position of CTO.4
    • Previous Experience: Worked in various roles from programmer to VP of Engineering at multiple startups from 1992 to 2011.4
    • Open Source Contributions: Created POPFile, an email spam filtering program that won a Jolt Productivity Award in 2004.3
    • Author: Wrote "The Geek Atlas," a travel book for scientists, and "The GNU Make Book".3

    Achievements at Cloudflare

    Under John's leadership, Cloudflare has implemented significant security features, including:

    • Universal SSL
    • Universal DNSSEC
    • TLS 1.3 implementation
    • Unrivaled DDoS protection1

    Personal Interests

    John is known for his advocacy of open-source software and his efforts to build Charles Babbage's Analytical Engine through a project called Plan 28.3 He has also written articles for various publications, including The Times, The Guardian, and New Scientist.5

    John Graham-Cumming is based in Lisbon, Portugal, and is fluent in English, French, and Portuguese.4

    Highlights

    Feb 7 · clay.com
    Who is the CTO of Cloudflare? John Graham-Cumming's Bio - Clay
    John Graham-Cumming - The Cloudflare Blog
    Sep 28 · youtube.com
    John Graham-Cumming, CTO of Cloudflare - YouTube
    John Graham-Cumming, CTO of Cloudflare - YouTube
    John Graham-Cumming - Swiss Cyber Storm
    Jun 24 · frost.com
    Movers & Shakers Interview with John Graham-Cumming – CTO of ...
    Nov 8 · youtube.com
    Engineering, with John Graham-Cumming - Unbabel Talks - YouTube
    Engineering, with John Graham-Cumming - Unbabel Talks - YouTube
    Apr 16 · infoq.com
    John Graham-Cumming's InfoQ Profile
    Dec 13 · en.wikipedia.org
    John Graham-Cumming - Wikipedia
    John Graham-Cumming - Wikipedia

    Related Questions

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    John Graham-Cumming
    John Graham-Cumming, photo 1
    John Graham-Cumming, photo 2
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    Location

    Lisbon, Lisbon, Portugal