If you’re looking at my contribution graph and seeing a lot of white space, here’s why: I spent the last decade building a startup.
Most of my "green squares" live inside private organizational repositories where I was busy architecting systems, leading engineering efforts, and shipping products from MVP to scale. I didn't have much time for public side projects because I was in the trenches.
I’ve recently stepped out of the private org world to reclaim my digital space and share what I’ve learned. I’m now operating as a Senior Engineer and Mobile Developer, helping teams build robust, scalable products.
You can find my full portfolio, technical deep-dives, and engineering services at: 👉 www.sergio.pt
- Senior Engineering: Building high-performance web and mobile applications.
- Fractional CTO Consulting: Providing strategic technical leadership for startups.
- Technical Writing: Documenting my "Second Brain" on my personal site (lessons on architecture, AI integration, and development patterns).
- Languages: JavaScript, TypeScript, React, Python
- Frameworks: React, React Native, Next.js.
- Architecture: Scalable System Design, API Orchestration, AI-assisted development.
Building a startup for 10 years taught me that code is just one part of the puzzle. I care about Product-Market Fit, User Experience, and Engineering Culture.
- 📫 How to reach me: Via my website sergio.pt
- ✍️ Reading my notes: Technical Blog
"Repeat until the pattern is undeniable. Abstract only when the maintenance cost of repetition exceeds the mental cost of the abstraction."