Mike Kasberg
Staff Software Engineer at Strava
Denver, Colorado, United States
Summary
🤩
Rockstar🎓
Top SchoolMike Kasberg is a Staff Software Engineer based in Denver with 11 years of experience building web applications, APIs, and back-end services at scale, currently advancing platform work at Strava. He combines pragmatic engineering—implementing CI/CD, Dockerized workflows, and trunk-based development—with hands-on service design in Java, PHP, and test automation. Mike has led teams to reduce developer overhead, migrate large legacy codebases (PHP 5.3 to 7), and deliver high-throughput systems used worldwide in ad delivery and communications. An active open-source contributor, he has improved PHPUnit’s test coverage and cross-platform reliability, demonstrating attention to edge cases and platform-specific bugs. His background as a math teacher and MA in Curriculum & Instruction gives him a rare strength in mentoring, clear technical communication, and crafting measurable developer processes. Comfortable in both legacy-modernization projects and production-grade distributed systems, he focuses on reliability, testability, and developer experience.
11 years of coding experience
12 years of employment as a software developer
BS Computational and Applied Mathematics, BS Computational and Applied Mathematics at Colorado School of MinesMaster of Arts (M.A.) Curriculum and Instruction, Master of Arts (M.A.) Curriculum and Instruction at University of Denver
Stackoverflow
16,602reputation
2.2mreached
164answers
14questions
git
top-1%
alpine-linux
top-5%
vbscript
top-5%
dockerfile
top-5%
ubuntu
top-5%
docker
top-1%
Github Skills (24)
git10
docker10
mstest10
testing10
teste10
phpunit10
php10
ui-testing10
test-automation10
ubuntu9
alpine-linux9
dockerfile9
regular-expression9
vbscript9
json8
Programming languages (22)
Github contributions (5)
sebastianbergmann/phpunit
Dec 2017 - Apr 2018
The PHP Unit Testing framework.
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:6 commits, 7 PRs, 13 comments in 3 months
Contributions summary:Mike primarily contributed to improving the testing framework of the PHPUnit repository. They added new test cases for the `StringMatchesFormatDescription` constraint, covering various format specifiers and edge cases, including newline characters and escaped percent signs. Furthermore, the user addressed bugs related to platform-specific behavior on Windows systems and fixed an issue with how JSON matching handled empty objects and arrays. Their work ensured the accuracy and reliability of the testing framework.
phpunit-testing-frameworkphpunittesting-tools
mkasberg/script-seed
Sep 2018 - Oct 2022
🌱 Seed scripts for popular (& unpopular) scripting languages.
Contributions:20 reviews, 105 commits, 54 PRs in 4 years 1 month
scripting-languagescriptseedboilerplatetemplate
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