Martin Stemmle
Full Stack Developer at hellomed.com
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
realm10
in-app-purchase10
html10
svelte10
swift-framework10
web-components10
windows10
keyframe10
swift10
android-app10
mobile10
vite10
rails-admin10
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/localize-mainmenu
Dec 2014 - Mar 2015
Commandline tool that localizes the common main menu items of an OS X app automatically.
Contributions:2 releases, 40 commits, 6 PRs in 3 months
command-line-toolmain-menu
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