Krzysztof Kempiński
Growth Engineer at Porozmawiajmy o IT
Greater Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolKrzysztof Kempiński is a Growth Engineer and seasoned software developer with 13+ years building web and mobile applications, specializing in Elixir and Ruby on Rails. He blends hands-on engineering—senior/backend Elixir roles and freelance Rails/iOS work—with leadership experience as a lead backend developer and former Head of IT, and is a certified Scrum Master. As the host of the Polish podcast "Porozmawiajmy o IT" and author of a book on personal branding in tech, he actively shapes the developer community and amplifies technical trends beyond code. He also runs a long-standing freelance practice with apps on the App Store and maintains a technical blog and GitHub presence, reflecting a mix of product delivery, content creation, and career mentorship. An analytical thinker with CliftonStrengths like Maximizer and Intellection, he’s known for turning technical expertise into visible industry growth and meaningful public-facing content.
12 years of coding experience
15 years of employment as a software developer
Master of Science (M.Sc.), Electronics and Telecommunications, Master of Science (M.Sc.), Electronics and Telecommunications at Poznan University of Technology
Polish, English, German
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (19)
iban10
bank10
validation8
elixir7
synchronous3
semaphore3
event-sourcing2
io-uring2
async2
non-blocking2
cqrs2
asynchronous2
fiber2
eventmachine2
ssa1
Programming languages (3)
Github contributions (5)
kkempin/fakturownia
Jun 2013 - Jun 2018
Integration with online invoicing system www.fakturownia.pl
Contributions:9 commits, 5 PRs, 5 pushes in 5 years 1 month
invoicing
kkempin/exiban
Feb 2016 - Nov 2022
Elixir library for validation and manipulating IBAN bank account numbers.
Contributions:2 reviews, 18 commits, 7 PRs in 6 years 10 months
elixir-libraryvalidationaccountelixirbank-account
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