Denys Kyselov
Senior Python Engineer at Dataz Tech
Germany
Summary
👤
Senior🎓
Top SchoolDenys Kyselov is a Senior Python Engineer and solutions architect based in Germany with over 14 years of hands-on experience building full-stack systems and shaping architecture for startups and consultancies. He combines deep backend expertise—evidenced by long-term contributions improving core functionality in notable open-source projects like CakePHP—with leadership roles as CTO and co-founder where he drove product and engineering directions. Comfortable oscillating between coding, system design, and client-facing solution architecture, he now operates as a self-employed senior engineer while advising at Dataz Tech. His background in automation (Master’s in automation of welding processes) and early work across PHP ecosystems give him a pragmatic, quality-focused approach to maintainability and performance. Colleagues describe him as a developer who improves legacy internals as readily as he designs new systems.
14 years of coding experience
7 years of employment as a software developer
Master's degree, Automation of welding processes, Master's degree, Automation of welding processes at Donbas State Mechanical Engineering Academy
English, Russian, Ukrainian
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (8)
php10
cakephp10
memcached10
web-framework9
orm3
mvc3
validations3
validation3
Programming languages (7)
Github contributions (5)
cakephp/cakephp
Jul 2014 - Jul 2014
CakePHP: The Rapid Development Framework for PHP - Official Repository
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 commits in 8 days
Contributions summary:Denys's contributions primarily involve fixing code and improving the CakePHP framework's cache functionality. They removed double backslashes from the MemcachedEngine file and restored original tabs and spaces, demonstrating a focus on code quality and maintainability. Further contributions included fixing a typo and implementing functionality by adding `removeSubcommand` to the `ConsoleOptionParser`, indicating experience in improving the framework's core components. These commits reveal expertise in optimizing existing code and modifying core features.
php-frameworkormform-buildervalidationpsr-7
mindforce/cakephp-garderobe-bootstrap-kit
Jan 2015 - Feb 2020
Contributions:12 commits, 13 pushes, 2 branches in 5 years 1 month
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