Dirk Jäckel
Mobile Engineer at Safe
Berlin, Germany
Summary
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SeniorDirk Jäckel is a Mobile Engineer based in Berlin with 14 years of experience building Android applications and JavaCard applets, currently focused on multi-signature wallet development for EVM blockchains at Safe. He has a long track record at specialist Android consultancies and fintechs (Gnosis, Novoda, SumUp) combining craftsmanship with product-minded delivery. Dirk is also a blockchain enthusiast and contributes to trueblocks-kotlin, reflecting an interest in tooling that bridges mobile and decentralized systems. His background in accessibility and automation underscores a pragmatic approach to robust, user-centered mobile experiences. Colleagues rely on him for deep Android expertise and thoughtful integration of security-conscious features in mobile crypto products.
14 years of coding experience
24 years of employment as a software developer
Stackoverflow
2,999reputation
236kreached
88answers
15questions
android
top-5%
Github Skills (166)
metadata10
gnosis-safe10
p2p10
harmony10
kotlin-android10
ethersjs10
multisig10
ethereum10
blockchain10
react10
download-manager9
golang9
abi9
ios9
json-rpc9
Programming languages (15)
Github contributions (5)
biafra23/EtherWallet
Feb 2016 - Oct 2016
Contributions:58 commits, 52 pushes, 3 branches in 7 months
biafra23/samba
Nov 2024 - Mar 2025
Contributions:1 PR, 59 pushes, 2 branches in 3 months
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