À propos de Johan
From research projects to start-ups, I have a record of transforming ambitious ideas into functional products that last. I excel at the intersection of deep-tech research and high-velocity execution, architecting frameworks for automated forensics and identity that withstand untrusted environments. I balance technical integrity with momentum to engineer systems that exceed expectations fast.
I master the following languages and frameworks:
- Node.js/Bun Javascript/TypeScript development
- Next.js/React/Solid.js and related JSX libraries
- Tailwind with DaisyUI and related tailwind-based librares
- Flutter with platform-dependent features integration (Swift/Kotlin/Java)
- Go Golang with extensive experience with ffmpeg and cryptographic processes
- Rust with extensive experience with libp2p, cryptography, and related technologies
- Python with extensive experience with programmatic Docker/Podman orchestration; OpenCV and FFMpeg workflows
For all languages above, I master the integration and development of the following technologies:
- Cryptography alongside ZK Zero-Knowledge proofs, secure hardware components, streamed encryption/decprytion, KMS key rotation, key delivery from-scratch design/integration. I built a real experience working with AEAD-related algorithms such as XChaCha20-Poly1305.
- FFMpeg and signal processing libraries. I have extensive experience with steganography, frame extraction, and frame analysis.
- All web development good practices and quality integration.
- Docker/Podman/Serverless architecture/CI/CD integration and orchestration at scale.
- GCP/Postgresql integration and orchestration at scale.
Over the years, I worked with the following products (non-exhaustive):
- MapBox
- Resend
- GCP, especially Cloud Scheduler, Cloud Jobs, Firestore, Realtime DB, and Authentication.
- Vercel Hosting
On my spare time, I am currently working on: Multi-modal detection of fake content through physics-related incentives.
Anglais
Bilingue ou natif
Français
Bilingue ou natif
Accepte de travailler sur site
Lyon (jusqu’à 50 km), Paris (jusqu’à 30 km)
Expériences
- FreelanceFreelance Developeraoût 2024 - Aujourd'hui (1 an et 10 mois)As a freelance developer, I've grown my skills impressively over the years. My diverse portfolio includes iden tity systems, forensics capture protocols, and technical roadmaps for PoC/MVP. These projects have honed my ability to research and develop innovative technologies, understand the needs of deep-tech startups and become a project lead.
- Veriscope ABTech Leadseptembre 2025 - mars 2026 (6 mois)Originally hired to develop a Proof of Concept, I had the chance to layout a complete technical trajectory for the company. From blockchain-based public monitoring solutions to advanced cryptographic processing, I developed a technically innovative system across web and mobile front-ends supported by back-ends.
- Franchisé MobalpaLead Software Engineeraoût 2022 - janvier 2024 (1 an et 5 mois)With the aim of fulfilling the needs of an ever-growing and busy team, I was hired to develop a CRM software tailored to the specific use-cases of the company. This collaboration resulted in the development of a multi platform software able to handle 3D scenes showcasing, B2C relationship evolution, and billing & accounting. The developed system has been engineered to switch between on-premise and cloud infrastructures in a click.
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Formations
- Full-Stack Developer Professional CertificateIBM2023Full-Stack Developer Professional Certificate