Johannes Dancker
Co-Founder at Cal.com, Inc.
Cologne, North Rhine-Westphalia, Germany
Summary
🤩
Rockstar🎓
Top SchoolJohannes Dancker is a product-minded founder and full-stack developer with five years of experience building privacy-first web products from Germany. As Co-Founder and CEO of Formbricks, he leads development of an open-source micro-survey platform that enables granular, timely customer feedback and ship features across UI and backend. He also runs a web agency (webaufzack) focused on empowering SMBs to manage their own web presence and consults on media and marketing for Cal.com. His GitHub contributions show hands-on involvement in front-end UX fixes, responsive design and backend integrations for the core Formbricks repo, highlighting a pragmatic approach to shipping incremental improvements. With an MS in Entrepreneurship and a BA in Multimedia Production, he blends design sensibility, startup strategy, and implementation skills. Colocated in Cologne, he favors lean, privacy-first solutions and a do-it-yourself ethos that surfaces in both client work and open-source engineering.
5 years of coding experience
Bachelor of Arts - BA, Multimedia Production, Bachelor of Arts - BA, Multimedia Production at Fachhochschule KielVisiting undergraduate student (ERASMUS), Visiting undergraduate student (ERASMUS) at Uniwersytet ŁódzkiMaster of Science - MS, Entrepreneurship & Innovation: New Venture Creation, Master of Science - MS, Entrepreneurship & Innovation: New Venture Creation at Lund University
Github Skills (17)
javascript10
typescript10
fullstack-development10
nextjs10
full-stack10
typescript-types10
typescripts10
react10
css9
tailwindcss9
email-templates9
tailwind9
website-design9
html8
apidoc8
Programming languages (7)
Github contributions (5)
formbricks/formbricks
Jun 2022 - Jan 2023
Open Source Qualtrics Alternative
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:4 releases, 568 reviews, 70 commits in 7 months
Contributions summary:Johannes contributed to both front-end and back-end components, including adding scrollbars to the submission overview, merging branch'main', creating email templates and related functionalities, updating customer views, and fixing a responsive issue. Their work involved changes in the components related to the UI, implementing features, and fixing issues which spanned various files in the code base. The contributions show the ability to work on the web-side features and functionality and integrating with the back-end code.
survey-formreacttailwindcssturboreposurvey-analysis
jobenjada/test-ossgg
Mar 2024 - Jan 2026
Contributions:35 PRs, 17 pushes, 16 branches in 1 year 9 months
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