Matej Košiarčik
QA Engineer at Excalibur
Bratislava, Region of Bratislava, Slovakia
Summary
👤
Senior🎓
Top SchoolMatej Košiarčik is a QA Automation Engineer with 9 years of experience specializing in end-to-end testing for web and mobile applications. He has built and improved Playwright- and Appium-based test suites, reduced flakiness, standardized reporting, and integrated E2E and API tests into CI/CD pipelines across Azure Pipelines and GitLab CI. Comfortable in TypeScript and a range of test frameworks (Puppeteer, Cypress, Jest, Mocha), he pairs practical test engineering with a background in frontend and iOS development. Based in Bratislava, he balances day-job automation with homelab tinkering at night, reflecting a strong curiosity for infrastructure and tooling. His cross-disciplinary experience—spanning native iOS, frontend stacks and backend API testing—lets him bridge development and QA to deliver more reliable releases.
9 years of coding experience
6 years of employment as a software developer
Master's degree (Ing.), Applied Informatics, Master's degree (Ing.), Applied Informatics at Slovenská technická univerzita v BratislaveBachelor's degree (Bc.), Computer Science, Bachelor's degree (Bc.), Computer Science at Faculty of Informatics and Information Technologies, Slovak University of TechnologyElectrical and Electronics Engineering, Electrical and Electronics Engineering at SPŠE Piešťany
German, English, Czech, Slovak
Stackoverflow
413reputation
31kreached
0answers
1question
Github Skills (56)
docker10
meta10
dockerhub10
linting10
image-optimization9
karabiner9
lint9
png9
linter9
stow9
shell8
compression8
image-compression8
optimization8
react8
Programming languages (7)
Github contributions (5)
matejkosiarcik/sitemap2urllist
Jul 2020 - Sep 2022
!!! OUT OF DATE, DO NOT USE!!! Original tagline: Simple sitemap.xml to urllist.txt converter
Contributions:8 releases, 145 PRs, 198 pushes in 2 years 1 month
txtxmlsitemapsitemap-xmlconverter
matejkosiarcik/cleardir
Apr 2020 - Aug 2020
Clears directory from development and OS junk files
Contributions:34 PRs, 152 pushes, 29 branches in 3 months
macosjunklinuxdirectory
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