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Dennis Snell

Software Design Engineer at Automattic

@dmsnell Tucson, AZ, USA joined Jan 2014

fluffyandflakey.blog github.com/dmsnell Slack: @dmsnell
    Maintains Charset Formatting HTML API
    Teams Core

    Bio

    As a Code Wrangler at Automattic, Inc., I spend my days designing software. As a nomad, I own very few things and enjoy living simply. I love cooking, engineering, photography, and my faithful God, Jesus Christ.

    Interests

    I’m passionate about programming theory, engineering design, and teaching software design. If you want to meet up at a WordCamp we could spend hours into the night discussing any problem no matter how big or small and get out our laptops to explore some ideas together.

    WordPress Origin Story

    At the time I found WordPress I had been building primitive CMS systems out of Google Docs, Smarty, and FCKEditor – what a different world! Once I realized that I could have a fully-fledged website building system for free and which got better as time passed I was hooked and abandoned all of my custom website coding.

    Badges

    CODE
    4 badges
    Core Contributor '15 Core Team '20 P Playground Contributor '25 P Playground Team '25
    CONTENT
    1 badge
    Documentation Contributor '23
    COMMUNITY
    1 badge
    WordCamp Speaker '15

    Current Job

    Software Design Engineer
    Present
    Automattic

    Recent impact

    Score weights high-impact work (commits, releases, approved translations, props) at 3x routine activity.

    Last 30 days
    24contributions
    high16
    medium8
    score56
    Last 90 days
    127contributions
    high84
    medium43
    score295
    Last 12 months
    574contributions
    high390
    medium184
    score1354

    Team focus

    Share of contributions across teams during the last 365 days

    WordPress releases

    Contributed to 19 releases
    • 7.0
    • 6.9
    • 6.8
    • 6.7
    • 6.6
    • 6.5
    • 6.4
    • 6.3
    • 6.2
    • 6.1
    • 6.0
    • 5.9
    • 5.3
    • 5.2
    • 5.1
    • 5.0
    • 4.7
    • 4.5
    • 4.3

    Time commitment

    40 hours per week of sponsored contribution time

    Contributions

    Type
    July 2026
    Jul 31 Fri · 20:14
    Core med
    Closed pull request #10828 on WordPress/wordpress-develop:
    Fixed: get_attribute_names_with_prefix() now agrees with enqueued att…
    Jul 31 Fri · 20:14
    Core med
    Closed pull request #12484 on WordPress/wordpress-develop:
    HTML API: Reflect enqueued attribute updates in prefix name lookup.
    Jul 31 Fri · 20:14
    Core med
    Closed pull request #12619 on WordPress/wordpress-develop:
    HTML API: Make get_attribute_names_with_prefix() agree with enqueued attribute updates
    Jul 31 Fri · 20:12
    Core med
    Closed ticket #64567 on Core Trac:
    HTML API: get_attribute_names_with_prefix() should agree with enqueued ...
    Jul 31 Fri · 20:09
    Core med
    Closed pull request #12757 on WordPress/wordpress-develop:
    HTML API: Respect enqueued updates in `get_attribute_names_with_prefix()`.
    Jul 31 Fri · 20:01
    Core high
    Committed [62960] to WordPress SVN:
    HTML API: Respect enqueued updates in `get_attribute_names_with_prefix()`.
    Jul 30 Thu · 17:04
    Core high
    Mentioned in [62944] on WordPress SVN:
    Interactivity API: Fix a fatal error when binding a non-scalar value.
    Jul 30 Thu · 01:48
    Meta med
    Wrote a comment on the post Leaner, steadier PHPUnit runs for upcoming releases, on the site Make WordPress Core:
    Thanks @lancewillett — this is a welcome improvement. It reminds me of a theme that…
    Jul 29 Wed · 17:31
    Core med
    Submitted pull request #12757 to WordPress/wordpress-develop:
    HTML API: Respect enqueued updates in `get_attribute_names_with_prefix()`.
    Jul 27 Mon · 21:36
    Core med
    Created ticket #65738 on Core Trac:
    Introduce a CSS tokenizer.