Marcus Felix
Frontend Developer at muun
Hamburg, Germany
Summary
👤
Senior🎓
Top SchoolMarcus Felix is a frontend developer based in Hamburg with a decade of experience blending UI-first design sensibilities with practical app engineering. He specializes in React and Flutter, having built consumer and B2B interfaces across home automation, CRM, and enterprise data-processing apps that integrate everything from Firebase Cloud Functions to low-level TCP/IP and MQTT. As a co-founder he has shipped end-to-end products—from editorial platforms and resident-management CRMs to hardware-integrated energy monitoring devices—bringing product thinking to frontend architecture. Marcus excels at turning complex data flows into polished, usable experiences and often bridges gaps between mobile, desktop (Electron), and embedded systems. His background in design gives him an edge on visual detail and usability that improves adoption and reduces support friction. Currently contributing frontend expertise at muun, he combines agency-honed delivery with startup pragmatism.
10 years of coding experience
14 years of employment as a software developer
Bachelor of Science (BS), Design, Bachelor of Science (BS), Design at Pontifícia Universidade Católica de Goiás
English, Portuguese, German
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (22)
escpos9
chat8
react-native7
peer-to-peer7
replication6
database6
flutter6
ipfs6
libp2p5
react-applications5
databases4
crdt4
podcast4
p2p4
tensorflow-lite3
Programming languages (7)
Github contributions (5)
marcusfelix/caster
Aug 2023 - Dec 2025
Mobile app for content creators, field authorities, e-learning teachers, tutors or podcasters in general looking to stablish your own community outside major distribution platforms.
Contributions:8 PRs, 9 pushes, 1 branch in 2 years 4 months
chatfirebaseflutterpodcastrss
marcusfelix/oscorp
Sep 2023 - Dec 2025
Mobile app for construction and maintenance buisness to keep track of expenses/credit and completed tasks
Contributions:11 PRs, 13 pushes, 1 branch in 2 years 3 months
dartfirebasefluttertemplate
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