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Henrique MartinsHM

Henrique Martins

FullStack Web & App Developer | SaaS | MVP | AI

€450/day
1 project
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Henrique

Full-Stack Freelance Engineer, Web, App, Mobile, SaaS, MVP & AI & Video Games.

Bac+5 Engineer graduated in computer science and freelance developer, I support startups, agencies and companies in the design, development and deployment of reliable, high-performance and user-oriented digital products.

With 6 years of experience (5 years in work-study + 1 year of freelance missions), I manage projects end-to-end: from idea to delivery, including architecture, development and deployment.


🚀 My expertise

🌐 Web Development
• Modern applications and websites (React, Next.js, Vue, Angular)
• API integration, Node.js / Python backends
• UI/UX (Figma, Framer), performance & SEO
• Deployment, CI/CD, cloud (GCP, Firebase)

📱 Mobile Applications
• iOS & Android Apps (Flutter, FlutterFlow, React Native)
• User management, subscriptions, payments
• Firebase, GCP, App Store & Play Store deployment

🎮 Video Games & Interactive Experiences
• 2D/3D Games on Unity (WebGL, mobile, Telegram Games)
• Unreal Engine 5 immersive experiences
• Pixel Streaming, AWS Gamelift, gameplay logic & UI

🤖 Artificial Intelligence & Automation
• AI / GenAI solution integration (chatbots, business assistants)
• AI API connection, data processing and business logic
• Workflow and internal tool automation
• Cloud deployment, Docker, performance and cost management

💡 Why choose me?
• Real versatility: web, mobile, video games, 3D, bots & AI
• Product vision: I don't just code features, I build useful solutions
• Autonomy & reliability: certified engineer, rigorous, results-oriented
• Clear communication: regular updates, priorities respected, deadlines met

👉 Portfolio: myhextech.com
👉 Available in full remote or in the Paris region or Liège region.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Lille (up to 50km), Lyon (up to 50km), Marseille (up to 50km), Bordeaux (up to 50km)

Experience

  • MyHextech
    Full-Stack Freelance Developer
    January 2025 - Today (1 year and 5 months)
    Design and development of WeAreEvents, an event web platform to centralize the organization, presentation, and user experience around interactive events: React / Next.js / TypeScript / Tailwind / UI-UX.

    Design and development of Virtualsomm, a virtual sommelier application for restaurants (interactive recommendations, discovery experience): React / Next.js / TypeScript / Tailwind / UI-UX.

    Frontend mission for Simvia - EDF Group (modern and user-friendly interface design): React / Next.js / TypeScript / Tailwind / UI-UX / GraphQL.

    Development of Entrave, a modern interface analytics/probability platform: React / Next.js / TypeScript / Tailwind / UI-UX / Web3 / Supabase / GraphQL.

    Wanteed (app + website): complete redesign, UI/UX optimization, free/premium logic, iOS/Android deployment, subscription: FlutterFlow / Webflow / Figma / Firebase.

    Telegram AI Chatbot: API account connection + complete user usage tracking: Node.js / Python / Docker / Redis.
    Full-Stack Development Mobile Development Web Development Node.js Next.js
  • Cobalt by C-01
    Development Engineer
    October 2021 - October 2024 (3 years)
    Development of metaverses & mini-games on Decentraland in TypeScript.

    Development of 3D and 2D games on Unity in WebGL and Telegram App.

    Development of games and immersive universes on Unreal Engine 5 with
    AWS Gamelift and PixelStreaming.

    Websites (front and back-end) with React, Angular, Vue, Node.JS,
    TailwindCSS, AWS, API, Figma, Vercel, Git, CI/CD, Framer, WordPress.
    Unreal Engine 5 Unity 3D Full-Stack Development Web Development AWS
  • CAP MONDE
    IT Assistant
    September 2019 - August 2021 (1 year and 11 months)
    Louveciennes, France
    Development of websites and emails in Html/Css. Database and application management on FileMaker Pro.

Reviews

5.0

Out of 1 rating

KamelK

Kamel

appyness

Reviewed on 9/24/2025

We highly recommend Henrique, he went well beyond the mission we entrusted him with, and the work was of high quality. Smooth communication, transparency and efficiency, absolutely nothing to complain about.

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Education

  • Diplome d'ingénieur en développement informatique, Ingénieur informatique et applications
    ESIEE-IT
    2024
    Diplome d'ingénieur en développement informatique, Ingénieur informatique et applications
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Skill set

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