Dennis Mittmann
CTO at BlockSign GmbH
Hückelhoven, North Rhine-Westphalia, Germany
Summary
👤
Senior🎓
Top SchoolDennis Mittmann is a seasoned CTO and blockchain architect with over 20 years building high-traffic, high-availability web and real-time data services across startups and enterprise environments. He combines deep systems and database expertise (C#, C++, Node.js, MySQL) with early and practical blockchain work since 2011, spanning BTC/ETH mining, NFTs, Plutus and Atala PRISM implementations. Having led architecture and engineering teams at IAMX, CHECK24, and multiple blockchain startups, he excels at turning identity, payment and scalability challenges into production-ready platforms. Based in Hückelhoven, Germany, he blends hands-on coding and low-level system design with strategic CTO leadership, and maintains an uncommon breadth from enterprise payment systems to modern Web3 stacks.
10 years of coding experience
16 years of employment as a software developer
Master of Computer Science Computer Science, Master of Computer Science Computer Science at FernUniversität in HagenAusbildung zum Informationstechniker Computerprogrammierung/Programmierer allgemein, Ausbildung zum Informationstechniker Computerprogrammierung/Programmierer allgemein at Adam-Josef-Cüppers-Berufskolleg Ratingen
Stackoverflow
46reputation
7kreached
4answers
0questions
Github Skills (21)
ado10
csv9
altera9
fpga8
database8
firebase8
ado-net8
odbc8
intel8
mysql7
opencl7
html6
homestead6
php6
ethereum6
Programming languages (6)
Github contributions (5)
Maetti79/QueryIT
May 2016 - Jan 2021
MySQL Developer Toolkit for Windows (ODBC/ADO)
Contributions:3 commits, 16 pushes, 1 branch in 4 years 9 months
querycsvmysqlwindowsado
Maetti79/HorstHome
Jan 2021 - Apr 2021
Contributions:43 commits, 36 pushes, 1 branch in 3 months
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