Freelancer profile translated to English.
Back to original languageAbout Léo
Full-Stack Developer focused on React and Next.js, I have been assisting professional clients since early 2025 in the design and delivery of web projects, from showcase websites to custom application products.
Since 2026, my activity has expanded to technical leadership, which covers, depending on needs, technical auditing of a codebase and its infrastructure, developing major features on existing or new products, and assisting the client with their evolution path.
I have also designed, developed, and self-published Stonecast, a professional web template under license. An experience that led me to step out of the pure developer role and into that of a product owner: design, architecture, brand identity, documentation, legal, marketing.
I am comfortable with:
- Modern application development: React, Next.js, TypeScript, Node.js, Spring Boot
- Collaboration, integrating into a team in an agile environment or direct communication with the client
- End-to-end product design, independently on complete projects
- Auditing and taking over existing systems: reading a codebase, identifying technical debt, diagramming, recommendations
Available immediately, remotely or for occasional travel. Do not hesitate to contact me to discuss your project!
French
Native or bilingual
English
Fluent
Spanish
Basic
Can work on-site
Clermont-Ferrand (up to 10km), Bordeaux (up to 20km), Lyon (up to 20km)
Experience
- EI Léo PeyronnetFreelance Full-Stack DeveloperJanuary 2025 - Today (1 year and 7 months)Design, development, and delivery of showcase and e-commerce websites for professional clients: scoping, design, development, deployment, hosting support. Stack React / Next.js / Gatsby / Node.js, deployed on Netlify and Vercel.Activity within which, since April 2026, a freelance technical leadership mission has been included (see dedicated experience).Also, solo design and publication of Stonecast, a professional web template under license (see Portfolio).
- AIUS LOQUENSTechnical LeadSOFTWARE PUBLISHINGApril 2026 - July 2026 (3 months)Freelance technical leadership mission for a SaaS, covering several aspects:Technical audit of the infrastructure, codebase, and third-party services; UML diagramming and production of a summary documentation presenting recommendations and identified evolution paths.Support on the third-party services ecosystem and professional tooling.Design and development of a major application component: product scoping (vision, wireframing, specifications) then implementation in Next.js, React, TypeScript, with a CI/CD approach.
- EI Quentin CasReact Front-End Developer (Internship)SOFTWARE PUBLISHINGSeptember 2025 - January 2026 (4 months)Clermont-Ferrand, FranceImplementation of a unified cross-platform product (web React + mobile React Native / Expo) in TypeScript. Integration of REST APIs on the front-end and state management with Zustand. Unit tests with Jest and React Testing Library. Interface design on Figma based on requirements. Work in Agile methodology (Kanban) and collaborative Git workflow.
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Education
- Application Designer / DeveloperHumanBooster2026Stack Angular / Spring boot
- Second Year Computer Science Bachelor's DegreeUCA2024
Certifications
- Responsive Web DesignfreeCodeCamp2024
- TOEIC Listening and ReadingETS2025