Daniel Wilkowski
Senior Software Engineer at Petl Pay
Krakow, Lesser Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolDaniel Wilkowski is a Senior Software Engineer with a decade of hands-on experience building and maintaining high-traffic web products and fintech platforms across Europe and Africa. He has led engineering and CTO-level efforts to modernize legacy systems, introduce test-driven practices, and ship resilient features for products serving 100k users and e-money services integrating banking providers. Comfortable across Java, Kotlin, PHP, C#, and modern toolchains, he pairs pragmatic engineering (Clean Code, SOLID, TDD) with a product-minded approach—optimizing performance, SEO, and user experience while deploying zero-downtime updates. He’s also skilled at fraud prevention and pattern-recognition solutions, having introduced fingerprinting and shadowbans to protect platforms. Based in Krakow, he combines disciplined engineering with a habit of challenging assumptions—a clean coder and coffee drinker who prefers measurable, user-focused outcomes.
10 years of coding experience
9 years of employment as a software developer
Informatyka, Informatyka at Politechnika Krakowska im. Tadeusza Kościuszki
Italian, French, Spanish, German, English, Polish
Stackoverflow
2,875reputation
1.3mreached
221answers
8questions
awt
top-5%
sorting
top-5%
java
top-5%
Github Skills (200)
duplication10
testing10
php-library10
browser10
regular-expression10
mochajs10
html10
unit-testing-framework10
highlightjs10
forum10
nodejs10
unit-testing10
codeception10
pytest10
css10
Programming languages (19)
Github contributions (5)
Danon/Realtime
Feb 2017 - Feb 2020
Contributions:80 pushes, 5 branches in 3 years
MaciejMilewski/ward
Jul 2021 - Jan 2022
Contributions:168 pushes, 21 branches, 9 comments in 6 months
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