Hola, I'm

Joseph Zamora

Senior Fullstack Engineer
Founder of Ready Games
Game Boy game developer
Former CTO · web VR/AR
Python · Go · AWS · React
Senior Fullstack Engineer

Nine years building cloud APIs, real-time systems and web 3D, and the whole software stack behind my own retro game store in Costa Rica.

See my work Download CV

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About me

I build the systems and the business.

I'm a Senior Fullstack Engineer from Costa Rica with 9+ years shipping software: IVR platforms, microservices on AWS Lambda, WebRTC, data pipelines over SageMaker and Redshift, and B2B APIs in Python and Go. I've led teams as a startup CTO, and today I also run Ready Games, a retro video game store I founded and wrote every line of software for.

I care about tools chosen on purpose, fast interfaces, and the people who use them. On weekends I make games for hardware older than me.

9+years engineering

7apps run Ready Games

5games made

1startup led as CTO

Experience

Where I've shipped.

2023 — Present

Ready Games

Founder & lead engineer · Alajuela, Costa Rica

Founded a retro video game store and built its entire platform: ecommerce, point of sale, arcade, esports, inventory and HR, all on one Django backend.

DjangoPreactTypeScriptPostgresHeroku

Aug 2024 — Present

Mismo

Fullstack engineer · B2B

Python + pandas services that generate and transform Excel deliverables, and Go REST APIs on AWS with direct impact on clients.

GoPythonpandasAWS

Jan 2022 — Aug 2024

JBS Custom Software Solutions

Fullstack engineer

Designed a microservice architecture on AWS Lambda, integrated WebRTC peer-to-peer, and built services over SageMaker, S3 and Redshift. Picked FastAPI, Auth0 and SQLModel after comparing the alternatives.

FastAPILambdaWebRTCSageMakerAuth0

From Aug 2021

Growth Acceleration Partners

Software engineer

High-availability, mission-critical apps alongside designers, PMs and DevOps, from an interactive chatbot to dashboard components.

ReactNode.jsGraphQLDjango

Aug 2020 — Feb 2022

Immerso

CTO

Led developers and designers, translated client needs into web VR/AR tourism experiences, and shipped them in the browser.

A-FrameThree.jsWebARReactLeadership

Oct 2020 — Aug 2021

First Factory

Fullstack engineer

A reusable-component platform that let the company sell single website features (login, subscriptions) instead of whole sites, with QA automation and GitLab CI/CD.

AngularRailsGitLab CIQA automation

Mar 2017 — Sep 2020

IVR Software Solutions

Software engineer

Internal IVRs and IVR APIs on AWS: modernized legacy Java and built new IVRs in Python over REST and SOAP, under PCI policies.

PythonJavaSOAPPCIAWS

My business

A retro game store, engineered.

Ready Games buys, sells and celebrates classic video games in Alajuela, Costa Rica. Behind the counter sits a platform I designed and built myself: seven apps on one Django + Postgres source of truth for inventory, sales and payments.

Storefront

Ecommerce with online checkout, customer accounts and the Ready Puntos loyalty program (3% back on every purchase).

PreactViteTypeScript

Visit the store ↗ Tournaments ↗ Arcade ↗

Selected projects

Things I've built.

Hover a card; they're 3D.

Ready Games · 2023 →

Retail platform

Django/DRF backend with 900+ commits: inventory, sales, payments, coupons, loyalty
Online checkout, AI-written monthly strategy reports (Gemini), staff PIN sessions
Playwright end-to-end tests across the storefront, POS and admin

DjangoPostgresPreactPlaywright

Live store ↗

Ready Games · 2026

Browser arcade

Play Game Boy ROMs (EmulatorJS) and Unity WebGL builds in the browser
Staff upload a build or ROM in admin and it goes live, served by the API
Home of my own Game Boy game, Ready Gamer

TypeScriptEmulatorJSUnity WebGL

Play ↗

Ready Games · 2026

Esports tournaments

Player accounts with email OTP verification and 2FA login
Registration with admin approval, branded welcome emails, sponsors and prizes
Livestream integration and a podium for finished tournaments

PreactDRFTwitch

Tournaments ↗

Immerso · CTO

Experience Engine

Web VR/AR tourism experiences that run in any browser, no app install
Tour creator for clients to author scenes themselves (Next.js)
Led the dev and design team from pitch to delivery

A-FrameThree.jsReactNext.js

Web 3D

UNED interactive map

An explorable 3D map in the browser for UNED, Costa Rica's distance university
React + A-Frame front end backed by a TypeScript API

A-FrameReactTypeScript

APIs

BCCR FVA simulator

Simulates Costa Rica's Central Bank (BCCR) FVA service over both SOAP and REST
Lets teams integrate and test without the real banking endpoint

PythonSOAPREST

Code ↗

Games I made

From 8-bit to Unity.

READY GAMERPRESS A TO PLAY

Ready Games GAME BOY GAME

drag to rotate · press A to play

2026

Ready Gamer

An original Game Boy game written in C with GBDK and ZGB. Five rooms of maze-aware viruses, spawn portals, a boss run and chiptune music. Playable in the Ready Games arcade, and a win reveals a raffle code for the store.

Play in browser ↗Source ↗

2021