Juan Sebastian Obando
Available

Hi, I'm Juan Sebastian Obando.

Systems Engineering student at Universidad Santiago de Cali.
Full Stack Web Developer from Cali, Colombia. With experience in web application development using .NET, React, Django, Astro.

Work Experience

  1. •

    Freelancer

    Self-employed

    Development of custom, scalable and efficient web applications for Colombian SMEs, covering everything from architecture design to production deployment. Clients include Valky, a stationery store based in Bogotá, for which I built a multi-branch POS and inventory system in production since 2025. Specialized in React, Django, .NET and Node.js.

  2. •

    Full Stack Developer

    Delivery Express

    Design and development of the company's information systems, from architecture to production deployment. I built the corporate landing page with Astro and currently lead development of the WMS, a warehouse management system for the 3PL operation that manages inventory for multiple client companies with full traceability of every movement, using React, TypeScript, Django and Docker on in-house infrastructure.

    Learn more...
  3. •

    Systems Analyst

    Delivery Express

    Responsible for the analysis, administration and support of the company's technology infrastructure: servers, networks and information systems. I gathered requirements with operational areas to translate business needs into technical solutions, and implemented internal process automations that reduced management time and manual errors in the logistics operation.

    Learn more...

Projects

Delivery Express

Delivery Express
Presentation landing page for Delivery Express: a single-page site with no reloads, featuring services, coverage, fleet and shipment tracking sections.
  • Astro 6
  • CSS
  • JavaScript

WMS — Delivery Express

WMS — Delivery Express
Warehouse Management System for Delivery Express, which operates as a 3PL (third-party logistics provider): manages inventory for multiple client companies across their physical sites, with full traceability of every stock movement.
  • React
  • Django
  • TypeScript
  • Tailwind CSS
  • Vite
  • PostgreSQL
  • Docker

Radio Dev — AutoDJ & Streaming Server

Radio Dev — AutoDJ & Streaming Server
Automated radio streaming system (AutoDJ) with a web admin panel, real-time listener dashboard, YouTube search and download, and Telegram integration for notifications and moderation.
  • Python
  • Flask
  • Liquidsoap
  • Icecast2
  • Docker

HDPUV Strategic Dashboard

HDPUV Strategic Dashboard
Strategic IT dashboard for the Hospital Departamental Psiquiátrico Universitario del Valle, built for the IT Governance course; it does not contain real data.
  • HTML5
  • CSS3
  • JavaScript
  • Chart.js
  • N8N
  • Docker
  • Automations

Data Soul

Data Soul
Web application for evaluating non-cognitive traits through psychometric tests and comparing results against language models (LLM). I acted as Full Stack developer, in charge of version control and project execution.
  • HTML
  • CSS
  • JavaScript
  • LLM
  • Ollama

Kancha

Kancha
Mobile and web sports platform that connects athletes: court booking, real-time messaging, sports communities and groups, and AI-assisted recommendations.
  • Ionic
  • Angular
  • Node.js
  • Socket.IO
  • Firebase

Valky POS & Inventory System

Valky POS & Inventory System
Multi-branch point of sale (POS) and inventory system for Valky, a real stationery store: Backend in Django REST Framework and frontend in React + Vite.
  • Django
  • React
  • PostgreSQL
  • Docker

SASS - Computer Lab Management System

SASS - Computer Lab Management System
Web application for comprehensive computer lab management in a university setting: lending of equipment and computer rooms. I acted as project manager and Full Stack developer, in charge of version control and project execution.
  • ASP .NET Core 9
  • Entity Framework
  • SQL Server
  • Bootstrap
  • Docker

MiniTab

MiniTab
Desktop application for inventory management: products, categories, in/out stock movements, CSV import and up-to-date stock reporting.
  • Python
  • Tkinter
  • SQLite

Tools

Frontend

  • React React
  • TypeScript TypeScript
  • Astro Astro
  • Tailwind CSS Tailwind CSS

Backend

  • Python Python
  • Django Django
  • .NET .NET
  • Node.js Node.js

Data & Infrastructure

  • PostgreSQL PostgreSQL
  • SQL Server SQL Server
  • Docker Docker
  • Linux Linux
  • Git Git

About me

My name is Juan Sebastian Obando. I started programming during my studies in Systems Engineering, where I discovered my passion for building tools to solve real problems. My first project was an inventory manager, and from there I've explored multiple frameworks for web and mobile applications.

I've gone deep into architectures, databases, cloud infrastructure, continuous deployment and project management, establishing myself as a Full Stack developer.

My philosophy is clear: prioritize client needs and design the right environment, whether an efficient VPS or scalable cloud services, to avoid unnecessary costs on complex infrastructure when the problem calls for a simpler solution.

My goal is to build tailored solutions for Colombian SMEs, helping them innovate and grow. I'm passionate about solving complex problems by applying what I know while constantly learning what I don't.

Currently, to stay ahead of the curve, I'm researching automation with n8n, Machine Learning and Artificial Intelligence, as well as building and organizing projects through AI agents. Even when I'm not in front of the code, I spend my time reading about the industry and continuing to grow professionally.

Juan Obando