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Focusing
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42 followers · 57 following

Achievements

Achievement: Pair Extraordinairex3Achievement: Pull Sharkx3Achievement: QuickdrawAchievement: YOLO

Achievements

Achievement: Pair Extraordinairex3Achievement: Pull Sharkx3Achievement: QuickdrawAchievement: YOLO

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marcioecom/README.md

Hi, I'm Márcio Júnior 👋

Senior Backend & Web3 Engineer | Building Scalable Financial Systems

Professional Software Engineer with deep expertise in Golang, Node.js, and Distributed Systems. Currently focused on bridging the gap between traditional Fintech and Web3 infrastructure. Based in Brazil, working for the world.

🌐 marcio.run | 🔗 LinkedIn | ✉️ Email

🚀 Professional Focus

  • Backend Architecture: Specialist in Clean Architecture, Domain-Driven Design (DDD), and Event-Driven systems.
  • Web3 & Crypto: Experienced in building market-making infrastructure, exchange integrations (Ethereum/Solana), and DeFi protocols.
  • Performance: Building high-throughput microservices using Go and gRPC.

🛠 Tech Stack

  • Languages: Golang (Expert), TypeScript/Node.js, Rust (Smart Contracts), Python.
  • Infrastructure: AWS (S3, Lambda, SQS), Google Cloud, Kubernetes, Docker.
  • Databases: PostgreSQL, MongoDB, Redis, MySQL.
  • Web3: Solidity, Ethers.js, Solana Web3.js, Wallet Integration.

📊 Github Stats

GitHub Streak

🤝 Let's Connect

I'm always open to discussing Web3 opportunities, Backend architecture, or Open Source.

  • 💬 Ask me about: Go, Microservices, and Blockchain.
  • ⚡ Fun fact: When I'm not coding, I'm probably on the mats practicing Jiu-Jitsu.

Pinned Loading

  1. permit-v2 permit-v2 Public

    Drop-in authentication for modern apps. React SDK, Node.js server SDK, Go backend. Everything you need to add auth to your project.

    TypeScript 3

  2. wallet-core wallet-core Public

    Digital wallet microservice in Go - Clean Architecture, MySQL, event-driven transactions

    Go

  3. nightmint nightmint Public

    Daily NFT auction protocol - mints one NFT every 24 hours, auctions it on-chain, settles automatically via Chainlink. Solidity + Next.js + Ponder.

    TypeScript 1

  4. merge-images-bot merge-images-bot Public

    WhatsApp bot that merges two images into one using AWS Lambda, SQS, and Twilio

    JavaScript