Hi, I'm Alejandro
I'm a backend developer with more than two years of experience in JavaScript, TypeScript, NestJS, Node.js and Python. I specialize in automating tasks, integrating systems and working with databases, and I've led front-end and back-end web projects using Scrum and Git Flow.
I co-founded AIM with Ivonne to bring what I do every day at companies to businesses that need results without an in-house tech team. I use AI agents as part of my workflow to deliver faster and with tests, without losing human judgment.
AIM's co-founders
Alejandro
Backend developer and co-founder of AIM
Ivonne
Business administrator and co-founder of AIM
Technologies
Languages and backend
- TypeScript
- JavaScript
- Node.js
- NestJS
- Python
- FastAPI
Web and apps
- Astro
- React
- Preact
- Angular
- Ionic
- Tailwind CSS
Data and automation
- PostgreSQL
- SQL Server
- n8n
Cloud, testing and deployment
- Cloudflare
- Docker
- Playwright
- Vitest
- Git
- GitHub Actions
Experience
Backend developer
SAEM Colombia S.A.S., currently
I build and maintain web integrations with Node.js, TypeScript, CMSs and databases; refactor modules so they can scale; and design secure REST APIs and Python automations that improve interoperability between applications.
Integrations analyst
Mario Hernández S.A.S.
I led web applications built with Laravel, JavaScript, Bootstrap and SQL Server; designed APIs; migrated data with Python; automated design and production processes; and created queries and views for sales, commercial and accounting.
Development intern
Mario Hernández S.A.S.
I integrated and automated administrative processes with Python, and optimized Node.js code and APIs to migrate data from Microsoft Dynamics to SQL Server.
Education
- Systems and Software Development EngineeringIn progress
- Technologist degree in Software Development2024 – 2027
- Professional Technician in ComputingEscuela Tecnológica Instituto Técnico Central, 2021 – 2023
- Technician in Administrative AssistanceSENA
Skills
- Languages
- Python, JavaScript, TypeScript
- Backend
- NestJS, Express, FastAPI, Flask, Hono
- Data and messaging
- PostgreSQL, MySQL, SQL Server, Redis, Kafka, Temporal
- Frontend and mobile
- Astro, React, Preact, Angular, Ionic, Tailwind CSS
- CMS
- WordPress, Strapi, Joomla
- AI and agents
- Claude, Claude Code, MCP, LangChain, LangGraph, n8n
- Quality and cloud
- Vitest, Playwright, Docker, Cloudflare, GitHub Actions
- Project management
- Scrum, Jira, Planner, GitLab, Git Flow
- Claude CoworkNovember 2026
, 10 hoursPlatzi. Demo: AI agent with tools - Testing and code review with AIOctober 2026
, 12 hoursPlatzi. Demo: AI code reviewer - Low-code automations with n8nAugust 2026
, 7 hoursPlatzi. Demo: Live automation - End-to-end testing for REST APIs with Node.jsAugust 2026
, 17 hoursPlatzi. Demo: API Playground - Chatbot development with OpenAIAugust 2026
, 10 hoursPlatzi. Demo: AI Assistant - OAuth 2.0 and OpenID Connect: authentication flows and case studiesJuly 2026
, 13 hoursPlatzi. Demo: Auth Lab - NestJS: modular programmingMay 2026
, 12 hoursPlatzi. Demo: API Playground - Claude CodeMay 2026
, 8 hoursPlatzi. Demo: AI agent with tools - Advanced Python for project architecture and PyPIFebruary 2026
, 10 hoursPlatzi. Demo: Data migrator - OWASP Top 10: application risksFebruary 2026
, 8 hoursPlatzi. Demo: Security in action
Got an idea? Tell me about it.
Write to me with no strings attached, wherever you are. I'll reply with specific questions and, if it's a fit, a written proposal.