Available for remote work

Miguel Angel Gallego Alvarez

Building scalable digital products and AI-driven solutions

View Projects Contact Me

Years

50+

Projects

1,200+

Businesses

About

Software Engineer focused on building scalable digital products, modern web applications, and AI-powered solutions. I enjoy understanding business challenges and turning them into reliable, maintainable technical solutions.

Languages: Spanish (native) · English (professional, B2+)

Years of Experience

50+

Projects Delivered

1,200+

Businesses Impacted

Tech Stack

Technologies and tools I use to build modern, scalable applications.

Next.js

React

Vue.js

Nuxt.js

Angular

Svelte / SvelteKit

TypeScript

Tailwind CSS

Shadcn UI

Astro

Alpine.js

Bootstrap

Zustand

Pinia

Node.js

NestJS

Go / Golang

Java

Kotlin

Spring Boot

Python

FastAPI

Django

.NET Core

PostgreSQL

MongoDB

Supabase

Swagger

Shopify

Liquid

Shopify CLI

Storefront API

Admin API

Theme App Extensions

Headless Commerce

AWS

Azure

Docker

Kubernetes / AKS

Terraform

Vercel

GitHub Actions

Jenkins

Prometheus

Grafana

Git

Azure DevOps

OpenAI

LangChain

RAG / Retrieval-Augmented Generation

PGVector

Qdrant

Flutter

Dart

Kotlin

Jest

GitHub

Jira

Figma

Projects

Selected professional projects with real-world impact.

3 clients · 1 API · 41 tests

Featured Case Study

ExpenseTrack

Corporate Travel Expense Platform

Full-stack expense management platform inspired by SAP Concur — one REST API powering web (Next.js), mobile (Flutter), and an admin panel. Employees submit expense reports, managers approve or reject them, and a real-time analytics dashboard tracks spending by category and status. Includes AI receipt scanning, 41 automated tests, and CI/CD across 3 repos.

Live Demo

GitHub Case Study

Spring Boot

Kotlin

PostgreSQL

Next.js

TypeScript

Flutter

OpenAI

Docker

Private client

Professional Project

Kevin Jewelry

E-commerce & Internal Management Platform

Full custom Shopify theme development and internal management platform (Sistema Monarch) for a jewelry retail client. Built advanced Liquid components, integrated Theme App Extensions, Storefront API and Admin API, and optimized load times and checkout flow.

ShopifyLiquidShopify CLIStorefront APIAdmin API

Tailwind CSSTheme App Extensions

600+ daily orders

Professional Project

Magic Stars

Logistics Platform

Real-time logistics and order management platform replacing spreadsheet-based operations, handling 20+ messengers and 600+ daily orders across multiple companies.

Next.js

TypeScript

Node.js

PostgreSQL

Supabase

Tailwind CSS

100–500 active users per client

Professional Project

Freeagentsdev

Custom Software Studio

Custom web applications, e-commerce platforms, and AI-powered solutions for SMBs and entrepreneurs, serving 100–500 active users per client.

Next.js

React

Node.js

MongoDB

Docker

OpenAI

LangChain

300+ users

Professional Project

Universidad de Manizales

Mobility Platform

University academic mobility and exchange management platform serving 300+ students and academic staff.

Astro

Tailwind CSS

Alpine.js

1,200+ businesses

Professional Project

Porter Metrics

Admin Panel

Led migration from Angular 12 to 16 improving stability and security compliance for a SaaS product used by 1,200+ businesses.

Angular

TypeScript

Tailwind CSS

AWS Amplify

Experience

My professional journey building digital products.

Freeagentsdev

Current

Jun 2025 – Present

Lead Fullstack Engineer

Manizales · Hybrid·1 yr 2 mos

Founded and led a 4-developer software studio delivering custom web apps, e-commerce platforms and AI-powered solutions for SMBs with 100–500 active users per client.

Next.js

React

TypeScript

Node.js

PostgreSQL

MongoDB

Docker

OpenAI

Magic Stars

Jul 2025 – Jan 2026

Lead Software Engineer

Manizales · Hybrid·7 mos

Designed and built a logistics platform from scratch replacing spreadsheet-based operations — enabling real-time coordination of 20+ messengers and 600+ daily orders across multiple companies.

Next.js

TypeScript

Node.js

PostgreSQL

Supabase

Tailwind CSS

SINAPSIS

Dec 2024 – Mar 2025

Fullstack Engineer

Manizales · Remote·4 mos

Built scalable web apps and backend services using Next.js, React, Node.js (NestJS), and TypeScript; implemented automated test suites (unit + integration) with Jest and React Testing Library; automated CI/CD pipelines with Azure DevOps in an Agile Scrum environment.

Next.js

React

TypeScript

Node.js (NestJS)

Tailwind CSS

TanStack Query

Jest

Azure DevOps

Universidad de Manizales

Sep 2024 – Dec 2024

Frontend Lead

Manizales · Hybrid·4 mos

Led frontend development of a university mobility platform serving 300+ students, managing a team of 2 interns and driving architecture decisions and code quality standards.

Astro

Tailwind CSS

Alpine.js

Porter Metrics

Jun 2023 – Jun 2024

Junior Frontend Developer

Manizales · Hybrid·1 yr 1 mo

Contributed to the Angular 12 → 16 migration of the admin panel, improving stability, security compliance and maintainability for a SaaS product used by 1,200+ business clients.

Angular

TypeScript

Tailwind CSS

AWS Amplify