Romain Fliedel is a seasoned software engineer and current CTO based in Paris with 12 years of hands-on experience spanning embedded C, backend systems, rich web interfaces and native mobile apps for iOS and Android. He progressed from innovation roles and internships at Xilinx to nearly a decade building software at Freebox and now leads technology at OQEE, blending product-focused leadership with deep implementation skills. Romain has entrepreneurial experience as a freelance mobile developer and a practical track record shipping consumer-facing apps like FreeTéléc and FreeWifi Connect. He also contributes to critical open-source infrastructure—working on the ACME certificate authority (letsencrypt/boulder) where he improved backend logic and test coverage to strengthen compliance and robustness. Known for bridging low-level embedded constraints with scalable web services, he excels at turning complex requirements into reliable, testable systems.
12 years of coding experience
11 years of employment as a software developer
Master's degree, Master's degree at Ecole Nationale Supérieure d'Informatique et de Mathématiques Appliquées de Grenoble
An ACME-based certificate authority, written in Go.
Role in this project:
Back-end Developer & Test Automation Engineer
Contributions:24 commits, 10 PRs, 33 comments in 6 months
Contributions summary:Romain primarily contributed to the back-end logic of the ACME certificate authority. Their work included adding link headers for resource updates, implementing and testing new registration functionality, and removing unnecessary authorization data. The user also focused on writing tests to validate the correct setting of Link headers and ensuring the system's robustness. These changes directly impact the core functionality and compliance with ACME standards.
Contributions:6 commits, 2 pushes in 2 years 1 month
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