I'm Hélio Lúcio, a Senior Software Engineer who builds scalable, reliable, and well-designed systems.
I focus on turning complex challenges into clean architectures — connecting backend services, modern web apps, and cloud infrastructure. My work blends engineering discipline, automation, and a drive to deliver software that’s both efficient and meaningful.
Coding animationI’m driven by the challenge of building robust systems that make a difference. Whether it’s architecting reliable backends, improving performance at scale, or refining developer experience — I focus on engineering that delivers real impact.
- 🔧 Backend Craft — Writing clean, maintainable code in Python, TypeScript, and Go
- ☁️ Cloud Architecture — Designing serverless, event-driven systems on AWS and Azure
- 🤖 AI/ML Engineering — Building intelligent systems with LangChain, LangGraph, RAG, and Vector Databases
- ⚛️ Frontend Magic — Creating delightful user experiences with React and Next.js
- 🔄 DevOps Excellence — Automating everything, from CI/CD to infrastructure as code
Here are some projects I'm particularly proud of:
| 📦 Projects | 📜 Language |
| ⚡ pyforge — Production-ready FastAPI backend starter template with Python 3.14+, SQLAlchemy 2.0, Pydantic v2, and clean architecture | Python |
| 📝 youtube-transcript-copier — Chrome extension to copy YouTube transcripts with AI-friendly features | JavaScript |
| 📊 signal_ops — Monorepo for backend (NestJS) and observability (Grafana LGTM + OTEL) | TypeScript |
| 🍅 pomotui — A simple and beautiful Pomodoro timer TUI built with Go and Bubble Tea | Go |
| 🤖 VideoInsightAI — Modern web app that analyzes YouTube playlists and videos with AI. Bulk extract transcripts, generate summaries, and get smart insights | Python |
| 🗄️ simple-database-in-c — A lightweight SQLite clone written in C that implements B-trees, paging, and basic SQL operations | C |
| ₿ bitcoin_tracker_in_go — A Bitcoin price tracker CLI application written in Go that provides real-time price updates, alerts, and historical logging | Go |
| 🎬 bun-media-grabber — Fast CLI to download videos and audios from YouTube, X, TikTok, SoundCloud and more — powered by yt-dlp + ffmpeg, wrapped in Bun | TypeScript |
Languages & Frameworks
Python TypeScript JavaScript Go FastAPI Django NestJS React Next.js
AI & Cloud
LangChain AWS Azure Docker Kubernetes
Databases & Tools
PostgreSQL Redis DynamoDB Git GitHub Actions
AWS Certified Developer – Associate AWS Certified Cloud Practitioner Microsoft Certified: Azure Fundamentals