Valentin Quelquejay
Co-Founder at HyperSafe
Earth, Texas, Mauritius
Summary
🤩
Rockstar🎓
Top SchoolValentin Quelquejay is a co-founder and cybersecurity-focused entrepreneur with seven years of hands-on experience building secure blockchain, AI, and infrastructure solutions. He has led and advised multiple startups and teams—most recently founding Rebellion Systems and running HyperSafe—while previously researching smart-contract security at ConsenSys Diligence and delivering production-grade tooling and audits. Trained at EPFL and ETH Zürich in cybersecurity and communication systems, he blends formal research (including a master’s thesis on low-overhead functional property checking) with practical full-stack and operational experience across AWS, NodeJS, and DevOps. Known for solving hard security problems daily, he pairs tokenomics and infrastructure design expertise with a hacker’s instinct for resilient systems. Based in Texas and originally from Mauritius, he brings a global perspective and a track record of reshaping Web3 security through both consulting and product ventures.
8 years of coding experience
7 years of employment as a software developer
Baccalauréat Scientifique, Baccalauréat Scientifique at Lycée StanislasMaster's degree, Cybersecurity, Master's degree, Cybersecurity at EPFLMaster's degree, Cybersecurity, Master's degree, Cybersecurity at ETH Zürich
French, English
Stackoverflow
149reputation
4kreached
4answers
6questions
Github Skills (75)
vscode-extension10
gatsby-plugin10
vscode10
solidity9
languagetool9
difference9
gatsbyjs9
tree-sitter8
security8
tailwindcss8
postgresql7
wine7
webextension7
browser-extension7
nextjs7
Programming languages (9)
Github contributions (5)
vquelque/website
Feb 2021 - Jun 2026
Contributions:15 pushes in 5 years 5 months
vquelque/vscode_mark_files
Mar 2023 - Aug 2024
VSCode Extension to mark files in the explorer
Contributions:4 releases, 1 review, 8 PRs in 1 year 5 months
vscode-extension
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