John Kary
Principal Software Engineer at FlipperForce.com
Kansas City, Missouri, United States
Summary
🤩
Rockstar🎓
Top SchoolJohn Kary is a Principal Software Engineer with 16 years of experience building and scaling business-critical web applications across real estate, biomedical research, higher education, and SaaS. He combines hands-on full‑stack engineering with technical leadership—driving architecture, testing, CI/CD, and hiring while aligning Product and Engineering to company objectives. Known for simplifying complex problems, he modernized legacy systems (including a million-line PHP codebase), led rapid COVID-19 surveillance software delivery, and engineered FlipperForce through upgrades, performance fixes, and acquisition integrations. He champions practices that keep software "soft"—fast feedback loops, feature flags, robust tests, and autonomous cross-functional teams—and applies lessons from biological systems to design boundaries, contracts, and coordination. An active contributor to testing and automation in notable open-source projects like Composer, he blends curiosity, communication, and pragmatic tradeoffs to deliver durable, changeable software.
16 years of coding experience
22 years of employment as a software developer
University of Kansas
Stackoverflow
6,842reputation
1.4mreached
22answers
5questions
git
top-5%
wildcard
top-5%
localhost
top-5%
database
top-5%
Github Skills (24)
unit-testing10
dependency-management10
testing10
phpunit10
php10
composer10
localhost9
wildcard9
command-line-interface9
git9
command-line9
database9
cli9
package-manager8
event-dispatching8
Programming languages (6)
Github contributions (5)
composer/composer
Sep 2012 - Oct 2012
Dependency Manager for PHP
Role in this project:
Back-end Developer & QA Engineer / Test Automation Engineer
Back-end Developer & QA Engineer / Test Automation EngineerContributions:7 commits in 22 days
Contributions summary:John focused on enhancing the testing infrastructure and adding functionality to the Composer dependency manager. They implemented tests to validate the execution of command-line scripts within the Composer environment, including support for various command structures and the interaction between PHP callables and CLI commands. The user also modified the existing code to correctly handle the execution of PHP scripts, ensuring proper event dispatching and error handling.
phppackage-managerdependency-managerpackagescomposer
johnkary/skeleton
Sep 2012 - Mar 2021
Contributions:28 commits, 6 pushes, 4 tags in 8 years 7 months
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