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Achievement: Pull Sharkx2Achievement: Arctic Code Vault Contributor

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Achievement: Pull Sharkx2Achievement: Arctic Code Vault Contributor

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Guiradi/README.md

Hi there, I'm Guilherme Ponsoni Ferreira 👋

Senior Backend Engineer | Node.js, TypeScript, AWS | AI-Augmented APIs

I am a Senior Backend Engineer with 7 years of production experience designing scalable backends, event-driven architectures, and microservices. Over the past year, my focus has been on integrating Large Language Models (LLMs) and Vision Language Models (VLMs) into production backends.

I am a power user of Spec-Driven Development (SDD), enforcing architecture through constitution.md, ADRs, and EARS specifications before writing code.

🚀 Recent Shipments (17 Days of Code)

Recently, I shipped 4 production-ready applications in a 17-day sprint using AI coding agents and strict SDD workflows:

  • 🥗 Plately (Private Commercial IP): BR-first nutrition app using Gemini 2.0 Flash (VLM) for photo logging, Whisper for STT, and an adaptive TDEE algorithm.
  • 🐾 PetCircle: PWA pet social network with Supabase RLS and custom Web Push API.
  • 🎵 What's the Sound: Real-time multiplayer music game using Socket.io and Tone.js.
  • 🎹 piano-scribe: Python audio-to-MIDI ML pipeline using basic-pitch and demucs.

💻 Tech Stack

  • Backend: Node.js, TypeScript, NestJS, Express, Python
  • Cloud & DevOps: AWS (Lambda, SQS, DynamoDB, EC2), Vercel, Supabase, Docker
  • Databases: PostgreSQL, MySQL, DynamoDB, Redis
  • AI Integration: OpenAI API, Gemini API, Whisper, Prompt Engineering, AI Governance

📫 Let's Connect

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  1. petcircle petcircle Public

    The social network where your pet is the star. Profile, feed, health, and routine — all in one place. 🐾

    TypeScript

  2. piano-scribe piano-scribe Public

    Audio-to-MIDI CLI for personal karaoke. Converts YouTube/SoundCloud links or local audio files into multi-track MIDI — isolated vocal melody plus piano-reduced accompaniment — ready to edit in any …

    Python

  3. whats-the-sound whats-the-sound Public

    What's the Sound? (WTS) is a multiplayer PWA music guessing game. Listen to progressively longer snippets of songs in MIDI format and compete with friends to identify the track — as fast as possible.

    TypeScript

  4. gasApp gasApp Public

    Aplicativo open-source que usa alguns dados do governo do site: http://preco.anp.gov.br/include/Resumo_Por_Estado_Index.asp para estimar custo dos combustíveis (etanol e gasolina) para ajudar o usu…

    JavaScript 4

  5. api-busca-locais api-busca-locais Public

    API para buscar locais de interesse de acordo com rua escolhida e tipo de locais de interesse.

    TypeScript 1