Peter Ullrich
Senior Software Engineer at Indie Courses
Leiden, South Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolPeter Ullrich is a senior software engineer, entrepreneur, and blockchain engineer based in Leiden, the Netherlands, with a decade of experience building scalable web applications. He currently serves as Senior Software Engineer at EagleMMS and founded Indie Courses, a platform that enables indie creators to sell video courses. A dedicated Elixir advocate, he leads Elixir + Phoenix LiveView projects and specializes in domain-driven design, software architecture, and team leadership. His open-source work includes technical writing for the Ethereum Populus framework, and he co-founded Stichting ForUs, a blockchain startup. Peter is a public speaker and former Explain Blockchain podcast host, sharing practical, production-focused insights. He combines software engineering with psychology-informed thinking from his studies in Groningen and RWTH Aachen to deliver auditable, user-centered systems.
11 years of coding experience
6 years of employment as a software developer
Bachelor's Degree, Economics, Bachelor's Degree, Economics at University of CologneMaster Software Engineering and Distributed Systems, Master Software Engineering and Distributed Systems at University of GroningenBachelor's Degree, Civil Engineering, Bachelor's Degree, Civil Engineering at RWTH Aachen University
German, English, Dutch
Stackoverflow
1,150reputation
210kreached
26answers
12questions
Github Skills (20)
documentations10
documentation10
ethereum9
web3py8
application-framework7
app-framework7
web-frameworks7
web-framework7
xcode6
nodejs6
sqlalchemy6
phoenix-framework6
python6
webpack6
elixir6
Programming languages (20)
Github contributions (5)
ethereum/populus
Oct 2017 - Oct 2017
The Ethereum development framework with the most cute animal pictures
Role in this project:
Technical Writer
Technical WriterContributions:5 commits, 5 PRs, 8 comments in 12 days
Contributions summary:Peter primarily focused on updating and correcting documentation for the `populus` Ethereum development framework. Their contributions included fixing typos, adding and removing sections about Web3.py interaction, and providing recommendations for related documentation. These changes mainly improved the quickstart guide and the introduction to chains, enhancing the clarity and usability of the project's documentation.
pythonpopuluspicturesethereumframework
PJUllrich/Dauerzaehlstellen-Koeln
Apr 2020 - Mar 2025
Contributions:2 PRs, 48 pushes, 7 branches in 4 years 11 months
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