Freelancer profile translated to English.
Back to original languageAbout Frederic
JavaScript / TypeScript Full-Stack Developer (Next.js, React, NestJS)
I'm Frédéric, a JavaScript/TypeScript Full-Stack Developer based in Paris. I help startups, SMEs, and product teams design, redesign, and scale modern, high-performance, and secure web and mobile applications.
I work with a product and long-term mindset: clean architecture, maintainable code, performance, and security from the outset. Comfortable with both rapid MVPs and products already in production with technical debt to address.
Specifically, I am involved in API-first design, end-to-end fullstack development (frontend, backend, database, infra), performance optimization, SEO and security, setting up CI/CD, Docker and clean environments, as well as taking over and stabilizing existing projects.
Main stack: Next.js (App Router), React, React Native (Expo), Node.js, NestJS, PostgreSQL, MongoDB, Docker. Agile/Scrum methodology, TDD when relevant, living documentation.
Available remotely or hybrid, 4 to 5 days a week. Ideal for SaaS, technical redesign, scaling, or long-term product development missions.
If you're looking for an autonomous, reliable, and product-oriented developer, we can work together.
French
Native or bilingual
English
Conversational
Remote only
Primarily works remotely
Experience
- early startup (NDA)Founder EngineerApril 2026 - Today (4 months)Paris, FranceDesign and definition of the software architecture, Implementation of processes and development tools Assisted by AI (Claude code, codex)Participation in technical choices and product strategy in a startup environment in the phase of launch.
- Bobochic ParisFullstack DeveloperE-COMMERCEAugust 2022 - September 2025 (3 years and 1 month)Paris, FranceBobochic Paris is a fast-growing D2C designer furniture brand.Creation of a Next.js 14 App Router store and image optimization (WebP, ISR): –10% average loading time and +6 pts Core Web Vitals.Development of a dozen high-performance Prestashop modules (installment payments, product configurator, etc.); improved mobile UX by 60% and increased average order value.Technical SEO strategy (schema.org, internal linking) coupled with server hardening: +30% organic traffic and +94% Google Shopping revenue.
- BrainstCTODIGITAL AND ITMay 2021 - Today (5 years and 3 months)Paris, FranceBrainst Agency is a Parisian tech & creative studio that designs custom web solutions for SMEs and scale-ups.Design and maintenance of CI/CD GitLab + Docker pipelines: 30% increase in successful deployment rate and reduction of time-to-market from 1 day to 2 hours.Redesign of secure Ubuntu VPS infrastructure (hardening, secrets management); OWASP level A compliance on new services.Multi-tenant SaaS architecture with NestJS + PostgreSQL: resource sharing and –20% hosting costs for B2B clients.Implementation of metrics dashboards (Grafana, Prometheus) for real-time KPI monitoring of DevOps.100% remote collaboration with designers and POs; Scrum rituals and Notion documentation.
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Education
- Bachelor's degree Full Stack and Mobile DevelopmentWebstart2024Full Stack and Mobile Development
- Associate's DegreeUniversité le havre2021Math-Info
Certifications
- GDPRCNIL2023