Full Stack Engineer · Python, React & AI Systems
I build web applications end to end: APIs in FastAPI and Django, interfaces in React and Next.js, and LLM and RAG integrations. Today I build SaaS products and integrations for clients in Colombia and the U.S. at Coordenadas.co.
I have 2+ years of professional experience building software. I currently work remotely as a Development Lead at Coordenadas.co, where I started as a Full Stack Developer in September 2025; before that I was a freelance Junior Backend Engineer for Sibartech Technology SAS, running Django, FastAPI and PostgreSQL in production.
At Coordenadas I built Bikans end to end: a payroll and tax withholding platform, in production with two-factor authentication, where employee data is entered once instead of being typed into two tools. I also build plugins and integrations for U.S. clients and maintain the infrastructure on a Linux server with Docker, Coolify and Traefik.
I'm in my 10th semester of Systems Engineering at Universidad de San Buenaventura. My co-authored thesis is a multi-agent system that detects IDN homograph phishing domains. I also built the Content Engine, a LangGraph agent that drafts the posts on this blog and publishes nothing without my approval.
Grouped by area. Boxed: what I use in my current job or in the featured projects; below: what I've used in other projects.
Also: PHP · Java
Also: Flask · Node.js · OAuth 2.0 · SQLAlchemy · MySQL · SQLite · ChromaDB
Also: Vite · Tailwind CSS · HTML/CSS · WordPress
Also: AI agents · Ollama · LlamaStack · Make · GoHighLevel · Webhooks · PySpark
Also: Docker Compose · Coolify · Traefik · Railway · AWS (EC2, S3, RDS) · CI/CD · Agile / Scrum
Also: bcrypt · TOTP 2FA · OWASP Top 10
Coordenadas.co · Bogotá, Colombia (Remote)
Leading the technical development of web platforms, digital products, and automation solutions, bridging hands-on engineering with technical coordination and delivery.
Technologies: ReactDjangoPostgreSQLn8nDockerCoolifyTraefikLinux
Coordenadas.co · Bogotá, Colombia (Remote)
Web platforms, API and CRM integrations, and automations for clients in Colombia and the U.S.
Technologies: ReactDjangoPostgreSQLn8nDockerCoolifyTraefikLinux
Sibartech Technology SAS · Freelance · Colombia
Production backend with Python, Django, FastAPI and PostgreSQL.
Technologies: PythonDjangoFastAPIPostgreSQLpytestDocker
Universidad de San Buenaventura · Bogotá · 10th semester
Software architecture, distributed systems and networking.
Technologies: PythonFastAPIPostgreSQLRedisChromaDB
Universidad Sergio Arboleda
Course on ethical hacking and cyber risk management.
Universidad Nacional de Colombia
Course on mobile application development.
The projects with the most evidence come first: each one explains the need it serves, how it solves it, what was decided and what it still lacks.
The clients of an accounting and payroll advisory firm ran payroll and tax withholding in two separate tools, and entered the same company and employee data twice.
What it does: One platform where employee data is entered once and feeds both payroll and tax withholding, with a mandatory second factor and per-tool access.
A domain that swaps letters for nearly identical Unicode characters looks just like the original, so the person reading the email has no way to notice.
What it does: Analyzes a URL or an email when the person asks and says whether it is phishing, with the reasons and what to do. The security team sees each incident and how each signal voted.
Publishing steadily about what I build without a model making up facts in my name, on a portfolio that search engines and AI assistants can read and cite.
What it does: Turns the notes, documents and links I send it on Telegram into blog posts and LinkedIn posts. No number goes out without its source, and nothing is published without my confirmation.
A university's asset inventory API returned the whole inventory to anyone who asked, and it could not be modified.
What it does: Puts users and permissions in front of that API: each person sees only the assets they own and superusers see everything, without touching the original API.
Repository temporarily unlinked; the code is available on request.
I'm looking for remote work as a Full Stack Engineer, focused on Python backends, React and AI integrations. I'm also interested in automation projects. Write to me through the form or any of these channels.