Available for new opportunities

Software developer
Building real applications, end to end.

I'm Juan Tomás — a University Technician in Systems Programming from Buenos Aires. I build fullstack web apps and native Android applications, with a focus on clean architecture and the details that matter.

See my work Download CV Get in touch
Juan Tomás Martínez
  • Location Buenos Aires, AR
  • Role Fullstack / Mobile
  • Timezone GMT−3
01

About

I'm a Systems Programming Technician who genuinely enjoys the craft of building software. Most of my work lives at the intersection of web and mobile — fullstack apps with React and Node, native Android with Kotlin, and the occasional dive into game development with Godot.

I care about code that's easy to read six months later, interfaces that respect the user, and shipping things end-to-end rather than handing off half-finished work. I'm currently looking for a full-time software engineering role where I can keep learning alongside people who take the craft seriously.

02

Experience

Aeroterra Apr 2025 — Present Buenos Aires, AR

IT Functional Analyst

Requirements gathering and analysis for software projects. Designed information flows and data models, and contributed to dashboards for asset maintenance and emergency management.

Solutions Engineer

Designed end-to-end solutions as the first technical point of contact: translating business needs into viable, scalable architectures, and normalizing and integrating data from multiple sources.

Technical Support Analyst

Technical support for enterprise applications, focused on incident analysis and resolution: ticketing systems, software and infrastructure diagnostics, and client-server architectures in production.

  • Requirements analysis
  • Data modeling
  • Solution architecture
  • Data integration
03

Selected work

2025 Machine Learning · API

World Cup 2026 Match Predictor

A backend that forecasts every World Cup 2026 match — win/draw/loss probabilities, expected goals and the most likely scorelines — served as a REST API. The engine blends a Dixon-Coles statistical model with Elo ratings and Monte Carlo simulation.

55.9% result accuracy · backtested on 2018–2022 World Cups · 48 teams

  • Python
  • FastAPI
  • NumPy/SciPy
  • Dixon-Coles
  • Elo
  • Monte Carlo
Live demo View code

Frontend built by a collaborator; the prediction model and API are mine.

2024 Fullstack web

The Movie Verse

A fullstack movie-discovery app: browse, search and save films to personal lists. I designed it end to end — a JWT-secured REST API over my own database, with a React frontend.

  • React
  • Express
  • Node.js
  • JWT
  • REST API
  • MVC
View code
2024 Android app

MealMind

A native Android recipe app: search meals and browse details pulled live from an external API. Built on a clean MVVM architecture with proper state handling, following Android best practices.

  • Kotlin
  • Android
  • MVVM
  • XML
  • RecyclerView
  • REST API
View code
2023 2D game

The Knight's Odyssey

A 2D platformer with hand-animated sprites, persistent save data, and state-machine-driven enemy and player behavior — a hands-on dive into game loops and real-time logic.

  • Godot
  • GDScript
  • State Machines
  • 2D Animation
View code
See all repositories on GitHub
04

Stack

Frontend

  • JavaScript
  • TypeScript
  • React
  • Angular
  • HTML & CSS

Backend

  • Node.js
  • Express
  • PHP
  • Python
  • REST APIs

Data & Mobile

  • SQL
  • Data modeling
  • Kotlin
  • Android SDK
  • MVVM

Tools

  • Git & GitHub
  • VS Code
  • Android Studio
  • Godot
05

Get in touch

Looking for a developer? Have a question? Want to chat about a project? Send a message and I'll get back within 24 hours.