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Joel Cadenas

Software Developer (Android · Web · Desktop)
Bogotá, Colombia (Remote available)
Email ing.jcadenas@gmail.com WhatsApp +57 318 748 8738 GitHub jcadenasSoftware Website jcadenas.com

Summary

Software Developer with experience in web development (PHP, MySQL, JavaScript), Android applications (Kotlin), and desktop applications (Java). Specialized in frontend and backend development, Object-Oriented Programming, and building end-to-end solutions. Experienced in multiplatform applications, cloud service integration, authentication, geolocation, and data synchronization. Working with Clean Architecture, SOLID principles, and Git/GitHub, focused on building maintainable, scalable, and functional software.

Skills

Languages: PHP, Java, Kotlin, JavaScript
Databases: MySQL, SQLite
Android: Kotlin, Jetpack Compose, MVVM, Room, GPS
Cloud: Firebase Authentication, Firebase Storage, synchronization
Web Development: Frontend/Backend, HTML5, CSS3, Bootstrap
Desktop: Java, JavaFX, iReport/Jasper
Tools: Git, GitHub, Object-Oriented Programming
Architecture: Clean Architecture, SOLID

Featured Projects

Xpendz — Multi-platform (Android + Desktop)
Official website | GitHub Android | GitHub Desktop
Kotlin · Compose · MVVM · Room · Firebase · JavaFX
  • Financial ecosystem that includes Android app, Desktop app, and official website.
  • Complete modules: accounts, transactions, transfers, budgets, goals, loans, charts, and reports.
  • Secure authentication with Firebase and cloud sync between mobile and desktop versions.
  • Currently in internal testing phase and Google Play publication process.
Buscamos tu mascota — Android + Official website
Official website | GitHub
Kotlin · Jetpack Compose · Firebase · Google Maps · Material 3
  • Own platform for searching and recovering lost pets with geolocation and Google Maps.
  • Developed with Kotlin and Jetpack Compose, using Firebase as backend/cloud infrastructure.
  • Lost/found pet system with user-to-user messaging, multimedia attachments, image/file sharing, camera capture, and push notifications.
  • QR codes linked to pet profiles, medical history, vet appointments with reminders, and official website currently in development.
marysbelleza.com — Production Web Platform
marysbelleza.com
PHP · MySQL · JavaScript · Bootstrap · SEO
  • PHP/MySQL production web platform with admin panel for publications, work gallery, multimedia management, and content moderation.
  • Dynamic gallery with photographs, videos, public comments, and star ratings.
  • Contact form and appointment requests with email sending via SMTP, WhatsApp integration, and SEO optimization.
Xpendz Desktop — Financial Application
GitHub
Java · JavaFX · SQLite · Firestore · Maven
  • Windows desktop financial application integrated into the Xpendz multiplatform ecosystem.
  • Accounts, transactions, transfers, budgets, goals, and loans management with SQLite local persistence and cloud sync with Firestore.
  • Financial dashboard with charts, monthly analysis, and CSV export, JavaFX interface with light/dark theme, and MSI installer distribution.

Education & Certifications

Formal Education
Computer Engineer degree
Computer Engineer
University degree · Venezuela
Universidad Politécnica Territorial de Valencia · 2015
Professional Training
Development Featured training
Java Programming Diploma
Politécnico de Colombia · 2018
Databases Featured training
Database Administrator
Fundación Carlos Slim / Capacítate para el Empleo · 2019
Technical Certifications
Development
Git & GitHub
Platzi · 2026
Development
Software Engineering Fundamentals
Platzi · 2026
Web
Professional Web Development Fundamentals
Platzi · 2026
Web
JavaScript Fundamentals
Platzi · 2026
Development
Python Fundamentals
Platzi · 2026
AI
Introduction to Artificial Intelligence
Platzi · 2025

Languages

Spanish: Native
English: Basic (A2)