Full Stack Developer
Nicolás
Castellanos
Passionate Full Stack Developer with experience building scalable APIs and modern web applications, skilled in modern web technologies and containerized deployments.
Experience
Junior Developer
Dec 2025 — PresentLitigando
Focused on optimizing and maintaining Java JSP applications, working with OracleDB for complex SQL operations. Experienced in migrating legacy projects to GitHub and developing Java-based .jar applications for scalable solutions.
Visit WebsiteEducation
Universidad Manuela Beltran
2023 — PresentBachelor's Degree Student in Software Engineering.
Visit WebsiteMicrosoft Learn Student Ambassador (Alpha)
2023 — 2024Entered MLSA to build ideas with Microsoft Technology.
Visit WebsiteTechnical Skills
Frontend
Backend
Databases
DevOps / Infrastructure
Project Management
Selected Work
FlowERP
An all-in-one admin dashboard for managing inventory and sales in your business.
FlowERP Backend
All of the Backend for the all-in-one FlowERP
Matching Service
Service to match between organization and company.
Code Tester
Help you to create unit tests for your code.
Code Tester Backend
Backend that provides logic, storage, and communication with the Deepseek API for the Code Tester AI.
Carbon Footprint Frontend
Frontend in Vue.js from the Carbon footprint Calculator.
Footprint Calculator Service
Service to calculate your footprint based in 4 areas.
Footprint Comparison Service
Service to compare 2 footprints.
SpaceX Launches Viewer
View all SpaceX launches up to 2020.
Currency Exchange
Application to exchange between diferent currencies.
Manuela Psychologist
Software for managing appointments between professionals and patients regarding mental health.
FarmAdmin
Streamline pharmacy operations by providing an intuitive and user-friendly interface for managing pharmacy data.