João Miranda

João Miranda

Rio de Janeiro, Brazil

João Miranda

Full-Stack Dev & SRE
Category : Website creation
Full-stack Developer & Systems Architect | Luxury Solutions and Scalable Infrastructure Specialist

I transform complex visions into high-fidelity digital products. My focus is not just on "delivering a website", but building digital assets that unite the minimalist aesthetics of the big luxury brands with the technical robustness of critical systems.

| What I deliver:

Elite Development (Front-end & UX): Minimalist and responsive interfaces, inspired by the visual rigor of brands such as Rolex and Hermès. Full focus on typography, spacing, and premium user experience.
Complex Systems (Back-end): Scalable architectures using Node.js, TypeScript and PostgreSQL. Specialist in building custom CMS and high availability reservation systems.
Infrastructure & Resiliency (SRE): Professional deployment using Docker. My projects don't just "work"; they are optimized for raw performance in a Linux environment, ensuring security and loading times of less than 1 second.
Performance Engineering: Optimization of databases and backend logic to support real traffic without performance degradation.

| Technology Stack:

Languages & Frameworks: Node.js, TypeScript, Express, React.
Database: PostgreSQL (Architecture and Optimization).
Infrastructure: Docker, Linux (Server Management and Kernel Tuning), SRE Principles.
Working Philosophy: Aristotelian logic applied to problem solving—clarity, precision, and efficiency.

| Recent Case Studies:

Luvaria Ulisses (Lisbon): Complete restructuring of the digital presence of a historic brand. Implementation of luxury-tier design with robust backend for inventory and reservation management.
Zenith Performance Client: Development of a Minecraft-optimized client focused on maximum hardware efficiency and low latency, demonstrating mastery in real-time systems.
Guaranteed Lesson: Full-stack CMS for educational management, focused on UX for teachers and data scalability.

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| Why hire me?
I'm not a generalist. I'm a developer who understands that the code behind the interface is just as important as the design the client sees. If you are looking for a solution that is visually impeccable, technically unbreakable and ready for the international market, let's talk.

> Availability for international projects (Europe/Asia/USA).
> Languages: Portuguese (native), English (technical/professional).

Working hours

  • Monday:08h00 To 18h00
  • Tuesday:08h00 To 18h00
  • Wednesday:08h00 To 18h00
  • Thursday:08h00 To 18h00
  • Friday:08h00 To 18h00
  • Saturday:Not available
  • Sunday:Not available
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