Oliver Häger
Principal Product Engineer at Signum Network
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolOliver Häger is a senior software engineer and product-focused technologist based in São Paulo with over a decade of hands-on experience and more than 20 years of cumulative involvement in building and scaling software systems. He currently balances senior engineering at Limbic, co-founds and leads technology at AXT PropTech, and architects blockchain solutions as an independent consultant while heading application engineering at Signum Network. Comfortable at the intersection of product and infrastructure, he brings practical expertise in distributed systems, blockchain architecture, and shipping production-grade features. Known on GitHub as a passionate, slightly contrarian coder, he pairs pragmatic engineering with a taste for unconventional solutions. Oliver’s career shows an unusual blend of startup founding, cross-company leadership, and deep technical craft—able to move from strategic product decisions to low-level implementation.
11 years of coding experience
16 years of employment as a software developer
Diplom (FH) Computer Science, Diplom (FH) Computer Science at Fachhochschule Braunschweig-WolfenbüttelBehavioral Animation, Behavioral Animation at UnisinosApproved Offset-Printer Druck, Approved Offset-Printer Druck at Druckhaus Benatzky GmbHMaster of Science Computer Science, Master of Science Computer Science at Ostfalia University of Applied SciencesInformatik Elektrotechnik, Informatik Elektrotechnik at CEFET-RJ
Portuguese, English, German
Github Skills (187)
harddrive10
peer-to-peer10
ipfs10
cryptocurrency10
decentralized-exchange10
smart-contracts10
wallet10
javascript10
sapper10
leiningen10
exchange10
mining10
sdk10
npm-cli10
typescript10
Programming languages (14)
Github contributions (5)
ohager/pinbox-app
Sep 2019 - Apr 2020
A dropbox like application built upon a true decentralized infrastructure using Burst blockchain and IPFS
Contributions:2 PRs, 151 pushes, 3 branches in 7 months
blockchaindropboxipfs
signum-network/signum-xt-wallet
Feb 2022 - Dec 2022
Cryptocurrency wallet for the green Signum 🍀 blockchain as an extension for your browser.
Contributions:1 release, 3 reviews, 135 commits in 9 months
blockchaincryptocurrency
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