Jonas Thelemann
Cloud Software Engineer STACKIT at Nuxt.js
Kassel, Hesse, Germany
Summary
🤩
Rockstar🎓
Top SchoolJonas Thelemann is an executive technology leader and hands-on software architect with 11 years of experience, currently heading technology and product vision at maevsi from his base in Kassel, Germany. He blends founder-level ownership with full‑stack engineering chops—designing technical architectures, building teams, and shipping B2B software. Jonas is an active open-source contributor across front-end and back-end projects, from UI refinements in Syncthing to backend integrations and DevOps work for a Binance trading framework and improvements to the Spotify Web API Java client. His background includes system administration, cost-optimized cloud and CI setups, and practical product ideation nurtured through entrepreneurship programs like EXIST and Hessen Ideen. Comfortable moving between code, architecture, and partnerships, he brings a pragmatic drive to turn complex ideas into maintainable, production-ready systems. A notable trait: he pairs academic training in software engineering with a habit of contributing small, high-leverage fixes in major open-source projects.
11 years of coding experience
7 years of employment as a software developer
High School Diploma, High School Diploma at Friedrichsgymnasium KasselMaster's degree, Computer Software Engineering, Master's degree, Computer Software Engineering at University of Kassel
English, German
Stackoverflow
632reputation
47kreached
20answers
2questions
Github Skills (36)
javascript10
postgresql10
javadoc10
java10
trading-bot10
javas10
binance10
front-end-development10
sql10
angularjs10
nodejs10
api-design9
json-parser9
json9
dockers9
Programming languages (29)
Github contributions (5)
bitcoinvsalts/node-binance-trader
Feb 2021 - Jan 2023
💰 Cryptocurrency Trading Strategy & Portfolio Management Development Framework for Binance. 🤖
Role in this project:
Back-end Developer
Back-end DeveloperContributions:33 reviews, 150 commits, 53 PRs in 1 year 11 months
Contributions summary:Jonas appears to have been primarily involved in back-end development tasks. They contributed to the integration of PostgreSQL database functionality, likely for storing and managing trading data. Their commits include changes to the server-side code, specifically `server.js`, indicating a focus on building or maintaining the application's core logic. The user also worked on setting up the environment using Docker Compose, reflecting DevOps aspects of the back-end development work.
binancecryptocurrencytradingtrading-botbitcoin
spotify-web-api-java/spotify-web-api-java
Nov 2017 - Jan 2023
A Java wrapper for Spotify's Web API.
Role in this project:Back-end Developer
Back-end DeveloperContributions:79 releases, 65 reviews, 750 commits in 5 years 3 months
Contributions summary:Jonas's commits primarily involve fixing and improving the JavaDoc and codebase of the Spotify Web API Java Client library. Their contributions include adding and correcting JavaDoc for various request classes, migrating default API settings, and addressing bugs in the parameters for recommendation requests, album, and playlist requests. They have also made improvements related to exception handling and parameter encoding in the library's request construction.
javaspotify
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