Ewe José Omusi Sáez

Full Stack Engineer & Cloud Developer

27 years oldMadrid, Spain

Building reliable web applications and scalable backend systems.

🇪🇸Spanish (Native)

🇺🇸English (Professional)

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Spanish Contractor - Freelance or Standard Employment

Featured Project

Xenora Rush - Competitive Multiplayer Game

Xenova Rush

High-performance distributed system with AWS cloud architecture. Built serverless backend with Lambda and API Gateway, scaled game servers with Amazon GameLift, implemented CI/CD pipelines with GitHub Actions, and managed infrastructure as code with Terraform.

☁️AWS

⚙️Lambda

⚙️GameLift

⚙️DynamoDB

⚙️Terraform

⚙️CI/CD

🟢Node.js

💎C#

🎮Unity

🐘PostgreSQL

⚡Next.js

View more projects →

Skills↓

Technical Skills

Technologies and tools I work with

Proficiency:

Learning

Good Understanding (1+ years)

Professional (3+ years)

Expert (5+ years)

🛠️Backend

Node.js

TypeScript/JavaScript

Java

Python

PostgreSQL

SQL

Express

AWS (Lambda, EC2, S3, DynamoDB, Cognito)

MongoDB

🎨Frontend

React

Next.js

HTML/CSS

Tailwind CSS

PostHog

Angular

Vite

💻Tools

Git

Cursor

CI/CD

Figma

Unity

Docker

Vercel

Cloudflare

GitHub Actions

Jenkins

C++

Prisma

Terraform

🏆Soft Skills

Problem Solving

Fast Learning

Adaptability

Team Collaboration

Team Leadership

Teaching/Mentoring

Featured Projects

Visual proof of my skills

Xenova Rush

☁️AWS⚙️Lambda⚙️GameLift⚙️DynamoDB⚙️Terraform⚙️CI/CD🟢Node.js💎C#🎮Unity🐘PostgreSQL⚡Next.js

TaskManager Pro

Full-stack web application with team collaboration, project management, and real-time task tracking. Built with modern architecture and best practices.

⚛️React🔵TypeScript🟢Node.js🚀Express🐘PostgreSQL🔥Prisma⚡Vite🎨Tailwind CSS

Brutoria

Mobile autobattler game with strategic gameplay mechanics and automated combat. I worked as co-creator and senior developer, providing technical guidance and mentoring in code architecture to the development team.

🎮Unity💎C#⚙️Mobile⚙️Game Design⚙️Mentoring

OtakuCollector

Professional e-commerce platform specializing in anime products. Built with Shopify using a fully custom theme and advanced custom logic for product management, inventory tracking, and customer experience optimization.

⚙️Shopify⚙️Liquid⚙️JavaScript⚙️CSS/SCSS⚙️Custom Theme Development⚙️E-commerce

Peluquería Booking Platform

Multi-business salon booking stack pairing a conversion-focused landing with a three-step wizard and a realtime admin workspace for services, staff, schedules, and policies backed by Prisma + PostgreSQL.

⚙️Next.js 15⚙️React 19🔵TypeScript⚙️Tailwind CSS 4🎬Framer Motion⚙️FullCalendar🔥Prisma🐘PostgreSQL⚙️Supabase⚙️Resend⚙️Jest

🎤

Voice-to-Text Application

Hotkey-driven Faster-Whisper companion that types real-time transcripts anywhere on Windows. Privacy-focused offline local inference for instant transcription without external API dependencies.

⚙️Python⚙️Faster-Whisper⚙️Windows⚙️Real-time Processing⚙️Local Inference

Problem Solving

Technical challenges and optimization solutions

⚡

10x Performance Improvement with Custom Delta Compression

I optimized server-client data transmission by implementing custom Delta compression algorithms, achieving significant performance improvements for real-time synchronization in multiplayer applications.

optimizationnetworkingalgorithms

🎯

Local Prediction and Server Reconciliation for Instant Feedback

I implemented client-side prediction with server reconciliation to provide instant feedback to the user while maintaining server authority and preventing cheating in multiplayer games.

gamedevnetworkingprediction

About Me

I currently live in Spain and am looking for remote work opportunities. I am available for both freelance contracting and standard employment, with a very flexible schedule ready to adapt to different time zones and project needs.

📎Download CV

When I'm not programming

I believe in maintaining a healthy work-life balance:

📺 Watching series

👥 Chilling with friends

🎮 Creating video games and exploring new game mechanics

Contact me!

GitHub LinkedIn Email Phone