Backend · Full-Stack
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Jhojan Esteban Molina Valencia

Software engineer focused on backend and full-stack. I solve real problems, keep systems stable, and write maintainable code.

Role

Fullstack Developer

Focus

Backend / Full-Stack

Mode

Remote · On-site · Hybrid

Availability

Freelance · Projects · Part-time · Full-Time

Architecture, automation and real delivery

Architecture, automation and real delivery

Backend and full‑stack experience building and maintaining robust systems, integrating services and APIs, and deploying containerized solutions with Docker.

I work in real production contexts: support, custom development, and evolution of enterprise apps. I prioritize analysis, stability, and maintainable code with documentation that adds value.

I use modern frontend when needed, with focus on clarity, performance, and best practices.

Soft skills

Clear, effective communication in technical and collaborative environments.

Teamwork and autonomy to deliver.

High performance under pressure.

Fast learning curve; adapt to new technologies.

Use of AI tools to optimize time and processes.

Experience working with agile methodologies (Scrum).

Experience

EMPRESAS MUNICIPALES DE CALI E.I.C.E. E.S.P — Junior Developer

  • • Design and development of FTTH modules.
  • • Support for internal applications.
  • • AWS (Courses).

Current experience

NovaIP — Fullstack Developer

  • • Backend services in production.
  • • API integrations (internal/external) and relational databases.
  • • Heavy use of Docker and containerized environments.
  • • Support and evolution of existing systems; efficient troubleshooting.

Way of working

Analysis before code

Clear diagnosis, explicit assumptions, incremental plan.

Stability first

Tests, monitoring, planned rollback.

Maintainable code

Readable, documented, aligned to style guides.

Communication

Frequent status and clear expectations with the team.

Featured projects

Personal technical lab

Icono de GeoAlarm

GeoAlarm

Geofencing alarms with Expo/React Native + Firebase.

See more

NovaIP tooling & automation

Scripts and containers for internal flows and deployments.

See more

Portfolio SvelteKit

This site: documented technical decisions, evolving.

See more

Tech stack

Tools I use daily

Main: React, Java and PostgreSQL.

Backend

Icono de Java

Java

Nivel 5 de 5 en Java
Icono de Spring Boot

Spring Boot

Nivel 5 de 5 en Spring Boot
Icono de Node.js

Node.js

Nivel 4 de 5 en Node.js
Icono de APIs REST

APIs REST

Nivel 5 de 5 en APIs REST
Icono de Python

Python

Nivel 3 de 5 en Python

Frontend

Icono de React / React Native

React / React Native

Nivel 5 de 5 en React / React Native
Icono de Expo

Expo

Nivel 4 de 5 en Expo
Icono de SvelteKit

SvelteKit

Nivel 4 de 5 en SvelteKit
Icono de TypeScript

TypeScript

Nivel 4 de 5 en TypeScript
Icono de JavaScript

JavaScript

Nivel 4 de 5 en JavaScript
Icono de HTML5

HTML5

Nivel 4 de 5 en HTML5
Icono de CSS3

CSS3

Nivel 4 de 5 en CSS3
Icono de Tailwind

Tailwind

Nivel 4 de 5 en Tailwind

Bases de datos

Icono de PostgreSQL

PostgreSQL

Nivel 5 de 5 en PostgreSQL
Icono de MariaDB / MySQL

MariaDB / MySQL

Nivel 4 de 5 en MariaDB / MySQL
Icono de Supabase

Supabase

Nivel 3 de 5 en Supabase
Icono de SQL avanzado

SQL avanzado

Nivel 4 de 5 en SQL avanzado

DevOps & Tooling

Icono de Docker

Docker

Nivel 4 de 5 en Docker
Icono de Linux / WSL2

Linux / WSL2

Nivel 4 de 5 en Linux / WSL2
Icono de Git

Git

Nivel 4 de 5 en Git
Icono de Firebase

Firebase

Nivel 3 de 5 en Firebase

Contacto

Looking for stability and real delivery?

Let’s talk about taking your services to production with safety and speed.

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