Leon Haffmans
Full-stack Developer at Hochfrequenz Unternehmensberatung GmbH
Cologne, North Rhine-Westphalia, Germany
Summary
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Rockstar🎓
Top SchoolLeon Haffmans is a full-stack developer with six years of practical experience who blends a strong physics background from Universität zu Köln with hands-on software engineering at Hochfrequenz Unternehmensberatung. He builds end-to-end web solutions and brings analytical rigor from his MSc in Physics to data-driven development and problem solving. Previously he taught mathematics, computer science, and natural sciences, which honed his ability to explain complex concepts and mentor teammates. Based in Cologne, Leon couples scientific curiosity with pragmatic coding practices, often approaching engineering challenges with experimental, measurement-focused thinking that reflects his academic training.
7 years of coding experience
Master of Science - MS, Physics, Master of Science - MS, Physics at Universität zu Köln
Stackoverflow
119reputation
5kreached
9answers
2questions
Github Skills (95)
fastapi10
python10
json-schema10
swagger10
code-generation10
typeddict10
pydantic10
openapi10
avro10
code-generator10
validation10
dataclasses10
yaml10
csv10
shell10
Programming languages (6)
Github contributions (5)
bo4e/BO4E-Python-Generator
Oct 2023 - Sep 2024
This tool auto generates (customizable) pydantic v2 Code to implement the BO4E-Schemas.
Contributions:11 releases, 14 reviews, 36 PRs in 10 months
bo4e/BO4E-Schemas
Oct 2023 - Jul 2026
This Repository contains all JSON-Schemas of the BO4E objects. They are automatically created by the release workflow of the BO4E-python repository.
Contributions:27 releases, 3 PRs, 46 pushes in 2 years 9 months
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