Armin Kirchner
Senior Software Engineer at （株）ヤマップ
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolArmin Kirchner is a Senior Software Engineer with 11 years of hands-on experience building full-stack web applications, specializing in Ruby on Rails and API-driven backends. Based in Berlin after a decade in Japan, he currently focuses on GraphQL and REST APIs for Yamap, where he introduced custom vector tile maps and a PostGIS-based data model to power advanced GIS features for an outdoor climbing app. He brings practical infrastructure experience from single-server deployments to Kubernetes, including read/write DB separation and autoscaling optimizations. A proactive team coach, Armin has run mob programming and reading circles to improve code maintenance and CI/Git workflows. His background in engineering and early HVAC consulting gives him a systems-oriented approach to problem solving that blends data, maps, and scalable operations.
11 years of coding experience
10 years of employment as a software developer
Bachelor of Engineering - BE Building Services and Energy Technology, Bachelor of Engineering - BE Building Services and Energy Technology at Berlin University of Applied Sciences Berlin (BHT)
Stackoverflow
21reputation
2kreached
1answer
1question
Github Skills (61)
rails10
ruby10
geo10
rgeo10
marketplace10
geography10
geodesy10
currency10
geolocation10
cart10
spree10
multi-tenant10
shopping-cart9
ecommerce9
javascript9
Programming languages (4)
Github contributions (5)
arkirchner/pronto_docker
Aug 2017 - Dec 2019
Contributions:18 commits, 14 pushes, 1 branch in 2 years 3 months
arkirchner/Tetris
May 2019 - May 2021
Contributions:1 review, 3 PRs, 15 pushes in 2 years
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