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Thomas BelenusTB

Thomas Belenus

Mobile, Web AI & Front-End Developer

€450/day
4 projects
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Thomas

⭐ 5.0 (3 reviews) · +10 projects delivered

🚀 Next.js / React Native Developer — Complex SaaS, AI Integrations

I build complete SaaS platforms — web, mobile, API, admin — with advanced integrations that I master perfectly.

📱 My services

• Custom web & mobile applications (Next.js, React Native, Expo)
• B2B/B2C SaaS with Stripe, VoIP, multi-tenancy • AI agent
• AI automation and API integrations
• Scalable PostgreSQL / Prisma architecture
• Technical lead reinforcement on existing projects

🏗️ Achievements

• Mana — Restaurant e-commerce site with ordering, loyalty, 4 languages (live)
• Snaptel — VoIP + Conversational AI App (Next.js + React Native)
• Plisur — B2B SaaS with Stripe, 11-state workflow, 3D configurator
• Couvr'up — Construction industry platform for document management and notifications

🔧 Stack

Next.js · React Native · TypeScript · PostgreSQL · Prisma · Stripe · TailwindCSS

🤖 AI Stack

Claude Code · OpenCode · Hermes Agent · OpenClaw — I code faster and better with AI

📞 Available immediately for full remote. Send me a message!
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 10km)

Experience

  • Couvr'up
    Software Architect & Full-Stack Developer
    CIVIL ENGINEERING
    February 2025 - May 2025 (3 months)
    Designed and developed the Couvr'up platform from scratch: Next.js + PostgreSQL/Prisma architecture, implementation of a complete client file management system and a real-time notification flow.

    Created the landing page and content via the Prismic headless CMS, integrated Tailwind for a responsive and high-performing design, automated content deployments.

    Implemented the e-mailing infrastructure and workflows (onboarding, alerts, follow-ups), ensuring a smooth user cycle fully controllable by the business team.

    Website: https://couvrup.com
    Next.js PostgreSQL Back-End Development Front-End Development Typescript
  • Snaptel
    Full Stack Developer (Next.js, React Native)
    TELECOMMUNICATIONS
    January 2025 - July 2025 (6 months)
    Development of a SIP VoIP application allowing calls to be received without a phone number.

    Integration of a conversational AI agent to automate and qualify incoming voice interactions.

    Contribution to features such as lead capture, intelligent call routing, and AI-based call analytics.

    Website: https://snap.tel
    SAAS React Native Next.js Start-up Back-End Development
  • Jizô AI by Sesame it
    Next.js Developer
    CONSULTING AND AUDITS
    November 2024 - December 2024 (1 month)
    Ensured the evolving maintenance of the Sesame IT website, including bug fixes, partial page redesigns, and front-end performance optimization.

    Integrated and structured content via the Prismic headless CMS, created reusable slice templates and automated content deployments.

    Improved user experience: implemented best practices for accessibility, responsive design, and Core Web Vitals monitoring.

    Website: https://sesame-it.com/
    Prismic TailwindCSS Front-End Development Web Development

Reviews

5.0

Out of 3 ratings

J

Jérôme

WHATSONWEB

Reviewed on 5/16/2024

Problem solved very quickly, efficient!
C

Carole

WABELK SAS

Reviewed on 3/5/2020

Serious, rigorous. Thank you Thomas for this second mission.

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Education

  • Bachelor in Digital Project Management
    EEMI (European School of Internet Professions), Paris
    La formation se décompose en 3 parties : INTERACTIVE DESIGN - Motion Design 2D - Motion Design 3D - Wireframe - Maquettage - Interview - Parcours utilisateurs WEB DEVELOPMENT - IOS - Android - Php - Symfony - Javascrip - jQuery - Html - css - Node.js - React.js - WordPress E-BUSINESS - Google Analytics - Google Adwords - Réseaux sociaux - SEO, SEA - Brand content - Content marketing - Growth hacking
  • Web and Mobile Web Developer
    O'clock
    2021
    Php Javascript React

Certifications

Skill set

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