Timo Schinkel
Developer at Coolblue
Randstad, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolTimo Schinkel is an experienced developer based in the Randstad with eight years of professional software experience and a strong background in PHP, JavaScript/TypeScript, and C#. He has been building and maintaining CMS and platform software since the early 2010s, including long-term work on the Kirra platform and currently contributing to Coolblue. Timo combines hands-on backend development with QA and developer education responsibilities, having supervised and mentored junior engineers while owning platform quality and delivery. He is an active open-source contributor to PHP_CodeSniffer, where he improved testability and introduced a refined PSR-12 sniff for nullable type whitespace—demonstrating attention to coding standards and tooling. With formal ICT studies in Groningen and a pragmatic history of moving projects from CMS builds to modern platform engineering, he brings both legacy-system experience and modern best practices. Pragmatic, detail-oriented, and focused on developer experience, he thrives on making codebases easier to test and maintain.
8 years of coding experience
10 years of employment as a software developer
Bachelor of ICT, Computer Sciences, Bachelor of ICT, Computer Sciences at Hanzehogeschool Groningen-, Computer Sciences, -, Computer Sciences at University of GroningenCoornhert Gymnasium
Github Skills (10)
code-standards10
php10
coding-conventions10
static-analysis10
coding-style10
phpunit10
testing10
automation8
automations8
cli7
Programming languages (7)
Github contributions (5)
squizlabs/PHP_CodeSniffer
Feb 2018 - Aug 2018
PHP_CodeSniffer tokenizes PHP files and detects violations of a defined set of coding standards.
Role in this project:
Back-end Developer / QA Engineer
Back-end Developer / QA EngineerContributions:6 commits, 4 PRs, 16 comments in 6 months
Contributions summary:Timo primarily focused on improving the testability of the PHP CodeSniffer project. Their contributions included extracting functionality to facilitate easier testing of coding standards rulesets by third-party developers. They introduced and refined a new sniff for PSR12, which validates whitespace in nullable type declarations. The user implemented significant code changes to the project, which involved refactoring, adding new tests, and improving the codebase's overall structure.
definedviolationsphpstandardsphp-codesniffer
timoschinkel/test-repository
Jan 2020 - Mar 2025
Contributions:10 releases, 14 PRs, 36 pushes in 5 years 3 months
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