Jakub Semik
Staff Software Engineer at Phantom
Greater Poland Voivodeship, Portugal
Summary
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SeniorJakub Semik is a Staff Software Engineer with eight years of hands-on experience building product and crypto-focused platforms, currently contributing at Phantom and advising startups like Spredo. He has scaled roles from developer number five at MoonPay to tech lead and staff engineering across Web3 consumer products, blending deep technical delivery with leadership in small, self-organized teams. As a co-founder and former CTO of AppreMe, he pairs entrepreneurial instincts with pragmatic engineering to ship customer-facing payments and tipping solutions under real-world constraints. Comfortable as freelancer, advisor, and team lead, he repeatedly moves between startups and product companies to solve ambiguous problems and accelerate product-market fit. Based in Portugal with roots in Greater Poland, he combines blockchain curiosity and startup grit—often focusing on what matters most rather than technology for its own sake.
9 years of coding experience
8 years of employment as a software developer
Polish, English
Github Skills (8)
lit10
arangodb10
docker10
api10
python10
flask10
pytest5
django5
Programming languages (2)
Github contributions (2)
suttacentral/suttacentral
Aug 2017 - Aug 2017
SuttaCentral website application
Contributions:12 commits in 4 days
apilitpythonsuttacentralflask
pytest-dev/pytest-django
Aug 2017 - Aug 2017
A Django plugin for pytest.
Contributions:1 comment in 1 day
djangopytestpythonpytest-pluginpython3
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