Mitchell Mckenna
Principal Software Engineer at TeamSense
Sacramento, California, United States
Summary
👤
Senior🎓
Top SchoolMitchell Mckenna is a Principal Software Engineer based in Sacramento with 14+ years building scalable web and mobile platforms, currently driving architecture and delivery at TeamSense. He led modernization efforts at Zulily—migrating a high-revenue site to a React/Node/GraphQL stack on AWS, adopting Kubernetes and Terraform, and contributing to a Shopify migration with custom TypeScript/React apps. Mitchell has a strong track record of impact-driven engineering: improving mobile latency by 80% on key pages, implementing fraud detection that saved ~$1.5M/year, and introducing resilience measures that prevented early outages and recovered significant demand. He pairs backend expertise in Java, Node.js, and PHP with observability, CI/CD and testing advocacy—raising unit test coverage and building continuous validation with OpenAPI/JSON Schema. An active QA/test automation contributor to notable open-source tooling (enhancing ESLint support in the phpro/grumphp project), he brings pragmatic engineering leadership that focuses on measurable business outcomes.
15 years of coding experience
15 years of employment as a software developer
Bachelor of Informatics Computer Science, Bachelor of Informatics Computer Science at Dalhousie University
Stackoverflow
2,266reputation
677kreached
49answers
0questions
codeigniter
top-1%
Github Skills (16)
unit-testing10
php10
eslint10
codeigniter10
phpunit10
test-automation10
software-quality9
code-analysis9
image-processing6
video-streaming6
video-encoding6
kohana6
cloud-hosting6
redirect6
mysql6
Programming languages (9)
Github contributions (5)
phpro/grumphp
Jun 2020 - Jun 2020
A PHP code-quality tool
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:8 commits, 2 PRs, 7 comments in 11 days
Contributions summary:Mitchell primarily contributed to the quality assurance of the project by implementing and enhancing tests for the ESLint task within the GrumPHP code-quality tool. This involved writing unit tests, adding configuration options, and improving the testing framework to cover different scenarios and configurations of the ESLint task. Additionally, the user updated the ESLintFormatter and integrated a fixable task implementation, enhancing the tool's ability to automatically fix issues.
phpcode-qualitygit-hookscomposer-plugin
MitchellMcKenna/twitter-rss-google-apps-script
Jun 2013 - Sep 2015
Google Apps Script to use Twitter API v1.1 to create RSS feeds of user's timeline, search results, user's favorites, or Twitter Lists.
Contributions:10 commits, 1 PR, 4 pushes in 2 years 2 months
google-apps-scriptrsstwittertwitter-api
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