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👨🏻‍💻Hey, I'm Johnathan

banner image where I am writing code with my dog

🐶 My canine pair programmer is Shelby

🏭 Principal Engineer at Contrast Security developing a Java agent that builds security into applications

☕️ Interested in building high-performance Java systems

📚 Learning a lot about integration testing at scale and infosec

🤓 Sharing my side-projects and tinkerings on GitHub

👨🏻‍💼 Decks at

📝 Blogging at

😎 More about me and my software development career at


  1. Sources for

    TypeScript 1

  2. Perhaps a misnomer, this is a personal reference for a small Java REST app that more or less adheres to the principles of the 12 Factor App

    Java 13

  3. Reference project for working with Java Instrumentation APIs to build java agents

    Java 1

  4. fast-grades Public archive

    Automatically grade scanned multiple choice exams using BoofCV

    CSS 10 2

  5. dotfiles Public

    Forked from mazzas/vimrc

    personal configuration for bash, vim, curl, rsync, etc

    Vim script 1 1

  6. IDEA plugin for synchronizing themes with the operating system's Dark Mode

    Java 40 9

147 contributions in the last year

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Mon Wed Fri

Contribution activity

January 2022

Opened 2 pull requests in 1 repository
Contrast-Security-OSS/contrast-maven-plugin 2 merged

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