Martin Jonáš
Software Engineer at GrowJOB institute
Brno, Southeast, Czechia
Summary
👤
Senior🎓
Top SchoolMartin Jonáš is a versatile software engineer and Linux sysadmin with 12+ years building web and backend systems (PHP, Python, C#) and running production infrastructure for projects like GrowJOB, Procrastination.com and Česky.AI. He combines hands-on development with project management, business analysis and architecture—often contracting for GrowJOB Institute while also taking on independent engagements. An active contributor to PHPStan, he has improved its testing infrastructure and static-analysis coverage, reflecting a strong focus on quality and automated QA. Based in Brno, he pairs formal training in information systems (MSc, Brno University of Technology) with interests in personal development, psychology and design that inform user-focused product decisions. Notably, he moves between deep technical work and people-facing roles, making him effective both as an individual contributor and a team leader.
12 years of coding experience
5 years of employment as a software developer
Master's degree (Ing.), Information systems, Degree exam: A A, Master's degree (Ing.), Information systems, Degree exam: A A at Brno University of Technology, Faculty of Information TechnologyService Science, Management, and Engineering, (1 year), Service Science, Management, and Engineering, (1 year) at Masaryk University Brno
English, Czech
Stackoverflow
229reputation
15kreached
2answers
2questions
Github Skills (16)
unit-testing10
php10
static-analysis10
phpstan10
software-quality10
test-automation10
testing10
iptables6
ip6
fastcgi6
nginx6
linux6
proxmox6
apache6
nat6
Programming languages (8)
Github contributions (5)
phpstan/phpstan-src
Aug 2022 - Dec 2022
PHPStan's source code. This is where development happens. Check https://github.com/phpstan/phpstan for the distribution repository.
Role in this project:
Back-end Developer & QA Engineer / Test Automation Engineer
Back-end Developer & QA Engineer / Test Automation EngineerContributions:9 reviews, 7 commits, 10 PRs in 3 months
Contributions summary:Martin's commits primarily focus on modifying and extending testing infrastructure within the PHPStan project. They added test cases for `checkImplicitMixed` functionality, a new feature for static analysis. Additionally, the user made several changes to the test suite, including updating and refining tests for existing rules such as methods, properties, and class constants, demonstrating a solid understanding of the project's codebase and testing methodology. These contributions enhance the project's reliability and quality through more thorough test coverage.
phpstatic-code-analysisphpstanphp7static-analysis
MartinMystikJonas/phpstan-nette
Dec 2017 - Aug 2023
Nette Framework class reflection extension for PHPStan & framework-specific rules
Contributions:30 pushes, 4 branches in 5 years 9 months
static-analyzernette-frameworkphptlaphpstan
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.