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HEO-80/README.md
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Héctor Oviedo

Backend Developer · DeFi & Smart Contracts · Cloud Infrastructure

LinkedIn GitHub Portfolio


NETWATCH Boot Hero + Terminal

NETWATCH Terminal

⬆ Clic en las imágenes para ver el portfolio en vivo


About me

Backend developer with 3-4 years of experience building fullstack applications, cloud-deployed services, and autonomous DeFi systems. I work mainly with C# / .NET, Solidity, and cloud infrastructure on Azure and AWS.

I also teach — I've run courses on HTML, CSS, JavaScript, React, Next.js, Astro and React Native. I believe that being able to explain something clearly is the highest level of understanding it.

Currently focused on DeFi, Web3 and Cloud/DevOps.


Tech

Blockchain & DeFi — Solidity · Aave V3 · PancakeSwap · Flash Swaps · Foundry · Hardhat · Nethereum · BSC · Ethereum

Backend — C# · .NET · Clean Architecture · CQRS · REST APIs · PostgreSQL · Spring Boot · Camunda BPM

Frontend — React · Next.js · Astro · TypeScript · Tailwind · Angular · React Native · Flutter

Cloud & Infra — Azure · AWS · Docker · Prometheus · Grafana · Linux

Data — Power BI · Big Data


Featured Projects

Project Description
DeFi-MEV-Ecosystem Central hub of a complete MEV system — Flash Loans · Multi-DEX arbitrage · Token sniping on BSC & Ethereum
🐺 12_MultiTokenBrain MEV radar V5 — WebSocket low-latency scanner · Gas math · Dark Forest anti-sandwich routing
🏹 13_SniperBot Autonomous MEV sniper on BSC — DexScreener · GoPlus honeypot detection · atomic swap
🔄 11_MainnetFlashBot PancakeSwap Flash Swap — native AMM loan · pancakeCall · single block execution
🧠 RealPriceBrain Multi-DEX radar scanning price spreads and triggering flash loan arbitrage
Flash_Loans Aave V3 receiver — atomic collateral-free operations on Ethereum Mainnet
📊 monitoring-stack Full observability stack — Prometheus · Grafana · Docker · home lab
🐘 docker-postgres-stack Dockerized PostgreSQL environment with Adminer web interface
🌌 Takuya_Terminal_Configs Custom Cyberpunk terminal for PowerShell and Linux/WSL
🎮 MetroidVaniaDark 2D action platformer — ninja vs zombies · AI enemies · dark aesthetics

Currently building

  • Expanding the MEV ecosystem — tuning sniper filters and arbitrage thresholds on BSC Mainnet
  • Home lab infrastructure on a Beelink Mini PC — Docker, monitoring, databases
  • Fullstack projects deployed on Azure and AWS (coming to GitHub soon)

Zaragoza, Spain · Open to remote 🌍

Pinned Loading

  1. Flash_Loans Flash_Loans Public

    Aave V3 flash loan receiver — atomic arbitrage without collateral on Ethereum

    Solidity

  2. monitoring-stack monitoring-stack Public

    Full observability stack — Prometheus + Grafana on self-hosted Beelink server

  3. SocialOnceFtpManager_Api SocialOnceFtpManager_Api Public

    Clean Architecture REST API — file management & real-time chat backend

    C#

  4. DeFi-MEV-Ecosystem DeFi-MEV-Ecosystem Public

    Complete MEV ecosystem on BSC & Ethereum — Flash Loans · Multi-DEX arbitrage · Token sniping · C# off-chain controllers

    Solidity

  5. portfolio-cyberpunk portfolio-cyberpunk Public

    Astro

  6. CodeTyper CodeTyper Public

    Proyecto para aprender mecanografía y código de programación . Aprende sintaxis con los dedos, no solo con los ojos

    JavaScript 1