Available for opportunities

Hi, I'm Juan Alberto Barillas Velásquez

A software engineer who loves building elegant, performant web applications. I write about engineering, architecture, and the tools I use every day.

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Crafting code that
makes a difference

I'm a software engineer with a passion for building things that live on the web. I specialize in full-stack development with modern JavaScript frameworks, cloud infrastructure, and developer tooling.

When I'm not coding, you'll find me writing about software architecture, reading about distributed systems, or contributing to open-source projects.

5+ Years Experience
20+ Projects Built
10+ Blog Posts
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Problem Solver

I thrive on turning complex problems into simple, elegant solutions. From system design to pixel-perfect UIs, I enjoy every layer of the stack.

Technologies I work with

A curated set of tools and technologies I reach for when building software.

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Languages

TypeScript JavaScript Python Go Rust SQL
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Frameworks

React Next.js Node.js Express FastAPI Django
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Tools & Infra

Docker Kubernetes AWS PostgreSQL Redis Git

Things I've built

A selection of projects that showcase my work and interests.

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DevDash

A real-time developer dashboard that aggregates CI/CD pipelines, GitHub activity, and deployment status into a single pane of glass.

React Node.js WebSocket Redis
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MarkdownSync

A collaborative Markdown editor with real-time sync, version history, and seamless GitHub integration for documentation teams.

TypeScript Next.js PostgreSQL CRDT

FastCache

A high-performance distributed caching layer built in Go, designed for low-latency microservice architectures with automatic invalidation.

Go gRPC Docker Kubernetes
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PaletteAI

An AI-powered color palette generator that creates harmonious color schemes from text descriptions, images, or moods.

Python FastAPI React ML

Latest articles

Thoughts on software engineering, architecture, and the tools I use.

Let's work together

Have a project in mind, want to collaborate, or just say hi? Feel free to reach out.