Jon Jagger

Director of Software, Kosli

Jon Jagger is the Director of Software at Kosli and the creator of cyber-dojo. With a passion for continuous learning and systems thinking, Jon has helped teams worldwide improve their software practices.

    Skills

    QA & Testing Engineering

    Moving testing left, owning quality as a team, and validating software where it matters most. Covers testing culture, CI/CD integration, production testing, test architecture, and building testing systems that catch failures before users do. Drawn from practitioners at Kosli, CircleCI, and Ministry of Testing.

    • Photo of Yechezkel Rabinovich
    • Nicole Forsgren
    • Mark Brocato
    Jon Jagger, Steve Tooke, Alan Page, Katja Obring, Rosie Sherry, Ian Brillembourg, Jacob Stevens, Avery Durrant, Dani Grant, Yechezkel Rabinovich, Abby Bangser, Glen Mailer, Nicole Forsgren, Luca Candela, Mark Brocato, Tomás Senart, Arthur Pastel
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    Content from the Library

    Podcast

    How It's Tested Ep. #16, Test-Driven Development Demystified with Jon Jagger

    In episode 16 of How It’s Tested, Eden speaks with Jon Jagger, Director of Software at Kosli. The conversation dives into Jon's...

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