Freelancer profile translated to English.
Back to original languageAbout Jacky
Product Engineer / Full-Stack — Expert in product & web platform launches
I help companies and startups build and launch solid web products quickly, from prototype to deployment.
Autonomous, pragmatic, and highly value-oriented, I take charge of features or applications end-to-end: design, front-end, back-end, architecture, and quality.
Developer for 15 years (React / TypeScript / Node.js / NestJS), I intervene where speed, rigor, and a strong product sense are needed.
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Core Competencies
- Modern Front-end : React, Next.js, TypeScript, React Query
- Back-end & API : Node.js, NestJS, Prisma, PostgreSQL
- Architecture : monorepos, design systems, shared libs
- Quality & Process : tests, CI/CD, documentation, best practices
- Product Vision : MVP scoping, pragmatic UX, technical optimization
- Assisted AI : development acceleration via Cursor / GPT / Claude, with mastered code
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What I Bring
- Rapid launch of a prototype or MVP
- Complete front-end redesign or ReactJS / Next.js modernization
- Structuring of a clean and scalable technical foundation
- Autonomous reinforcement to accelerate a product project
- Technical scoping + simple and sustainable architecture design
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Ideal for:
Startups, SMEs, or tech teams that want to launch a product quickly, with quality and clear support: consulting, scoping, and clean delivery with the right level of product ambition.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- KeendomPrincipal DeveloperSOCIAL NETWORKSMay 2025 - November 2025 (6 months)At Keendom, I participated in the complete development of a platform for adult creators, managing both thefront-end and back-end.I worked on a modern stack with React, TypeScript, NestJS, Prisma, PostgreSQL, and AWS deployment (ECS, ECR, S3, CloudFront).My role covered:
- Design and development of interfaces (Backoffice + public site)
- Complete backend development: NestJS API, Prisma models, business logic
- Setup of the media upload system (S3 + signatures, transformations, webhooks)
- PSP integration (Centrobill / Shift4)
- Real-time chat system management (WebSockets)
- Construction and maintenance of CI/CD pipelines
- Performance and security optimization across the entire stack
- Production deployment and supervision of INT → PROD environments
A complete experience, combining architecture, development, and DevOps, in a high-growth environment. - TellentLead Front-end DeveloperSOFTWARE PUBLISHINGApril 2022 - March 2025 (2 years and 11 months)
Leading a team of 4 developers
Implementation of standards and best practices → accelerated delivery and reduced bugs.JavaScript → TypeScript Migration
More robust code, better maintainability, simplified onboarding for new developers.NX Monorepo Implementation
Faster builds, structured code sharing, better ecosystem scalability.Adoption of an Atomic Design approach
Reusable components, more consistent UI, reduced front-end development time.E2E Test Implementation with Playwright
Secure release pipeline, elimination of critical regressions. - LonestoneFront-end DeveloperTECHDecember 2020 - March 2022 (1 year and 4 months)
Streaming Platform Back-office
Development and optimization of a complete admin area.Stack: React, TypeScript, Apollo, GraphQL→ Smoother interface, simplified content management, and improved quality of internal tools.Creation of a complete static content generation platform
End-to-end design and implementation of a tool for quickly creating, managing, and publishing static content.Front-end: Next.js, TypeScript, Astro, GraphQLBack-end: NestJS, TypeScript, Apollo, GraphQL, PostgreSQL→ Significant productivity gain, workflow automation, and scalable architecture for product evolution.
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Education
- Self-taughtSelf-taught2008