Christian Kielmann
CEO And Co-Founder at Gapfruit AG
Zurich, Zurich, Switzerland
Summary
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Top SchoolChristian Kielmann is a founder and CEO with 15 years of hands-on experience building security-first systems and commercialising deep-tech research into real-world products. As co-founder of Gapfruit in Zurich, he led the team that rethought the operating system to deliver a military-grade, privacy-focused platform adopted to meet national government and security-agency requirements. His background spans embedded and FPGA design, secure hardware/software platforms, and project leadership at Crypto AG, giving him rare end-to-end expertise from silicon to system. Christian combines academic rigor (MSc in Technical Informatics) with entrepreneurial grit dating back to founding a bespoke ERP and controls firm, demonstrating both product vision and operational execution. Less obvious is his long-standing focus on replacing brittle security layers by redesigning the OS itself, turning an infrastructure blind spot into a marketable foundation for safety-critical devices. He is driven by building resilient, maintainable platforms that let partners ship innovative, high-assurance products faster.
15 years of coding experience
15 years of employment as a software developer
Technische Informatik, Technische Informatik at Master of Science (MSc); University of Applied Sciences ConstanceTechnische Informatik, Technische Informatik at Bachelor of Science (BSc); University of Applied Sciences Constance
German, English
Github Skills (87)
sapi10
arm10
cpp10
operating-system10
matrix10
goa10
linux10
hypervisor10
virtualization10
esapi10
tss10
x8610
tpm10
owin9
sel49
Programming languages (16)
Github contributions (5)
parat-schweiz/discourse-ekklesia
Jan 2019 - Aug 2024
Contributions:9 pushes in 5 years 7 months
throwException/genode
May 2018 - Feb 2023
Genode OS Framework
Contributions:33 pushes, 29 branches in 4 years 9 months
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