Martin Stemmle
Full Stack Developer at Self-employed
Germany
Summary
👤
Senior🎓
Top SchoolMartin Stemmle is a Full Stack Developer based in Germany with 12 years of experience building mobile-first products and leading engineering teams. He blends hands-on iOS craftsmanship—having built Tapglue’s first iOS SDK and led iOS efforts at startups like CINEPASS and Kitchen Stories—with full-stack and team leadership roles, including CTO and Senior Team Lead positions. Currently available and working at hellomed.com while maintaining a long-running independent practice as a 3rd-party Apple app developer, he’s comfortable switching between product-focused startups and client-driven projects. Martin holds an M.Sc. in Business Computing and brings a pragmatic mix of technical depth and product sensibility that helps teams ship reliable apps. Notably, his career combines early SDK-level contributions with executive engineering responsibility, giving him a rare perspective from API design through product delivery.
12 years of coding experience
8 years of employment as a software developer
Master of Science (M.Sc.) Wirtschaftsinformatik / Business Computing, Master of Science (M.Sc.) Wirtschaftsinformatik / Business Computing at Hochschule für Technik und Wirtschaft Berlin
Spanish, English, German
Github Skills (200)
ui-components10
testing10
uiview10
realm10
command-line-tool10
isolation10
swiftui10
html10
storybook-addon10
api-blueprint10
svelte10
amazon10
activemodel10
swift-framework10
web-components10
Programming languages (20)
Github contributions (5)
martnst/OS-X-Process-Cheatsheet
Feb 2016 - Dec 2020
Contributions:5 commits, 1 PR, 5 pushes in 4 years 11 months
martnst/VersionsTracker
Feb 2016 - Jan 2019
Contributions:5 releases, 14 commits, 4 PRs in 3 years
macosswift-libraryswifttracks
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