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ElReyUno/README.md

Well Hello There 👋 I Am A Software Engineer | Code Craftsman | Debugging Magician | Git Repo Man

🎯 Talent Scouts & Digital Dreamers: Explore my interactive portfolio at EZASW — live demos, real code, and a sprinkle of engineering magic await!

GitHub Followers GitHub Stars CIW JavaScript Specialist Linux VS Code Full Stack

JavaScript TypeScript Node.js Express.js Angular React Next.js NestJS Ruby on Rails PostgreSQL MySQL Redis Sidekiq Prisma Tailwind CSS Bootstrap Shadcn/ui HTML5 CSS3 Jest Mocha & Chai Chart.js Docker AWS GCP Terraform CloudFormation EC2 S3 RDS CloudFront Route 53 CodePipeline OpenAI Anthropic Clerk Stripe Resend Aider CLI VS Code Codespaces Git GitHub SaaS

Table of Contents

ABOUT ME

A highly adaptable Full-Stack Software Engineer passionate about integrating emerging technologies.

Proven ability to quickly master new tools and languages to deliver high-quality solutions across diverse project requirements.

Currently Actively Engaged

Recent Freelance Projects

Minimata: Minimal-Data-Dependency CRM with PostgreSQL and Prisma

Live Demo & Details

Aug 2, 2025 - Aug 11, 2025

Full-Stack Engineer | Backend Engineer | Frontend Engineer | DevOps Engineer | QA/Test Engineer | Database Architect | Security Engineer | API Designer:

  • Backend Development & Architecture
    • Node.js (TypeScript)
    • Express.js
    • PostgreSQL (Neon serverless)
    • Prisma ORM
    • Custom JWT authentication, Argon2/scrypt password hashing
    • Session management
    • Role-Based Access Control (RBAC)
  • User/Account/Contact Management
    • Full CRUD for users, accounts, contacts
  • KPI Tracking
    • Custom Key Performance Indicators
  • Frontend Development
    • React
    • Next.js (SSR/SSG)
    • CSS/SASS
  • DevOps & Testing
    • PM2, nodemon, Jest, Supertest
  • API Documentation
    • Swagger (swagger-jsdoc, swagger-ui-express)

Project-UX-UI-X-Functional-NextJS: UX/UI X-Functional NextJS Expo TurboMonoRepo

Live Demo & Details

Aug 4, 2025

Founding Full-Stack Product Engineer | Technical Architect:

  • Architecture & Stack
    • Turborepo monorepo (modular, scalable)
    • Expo React Native frontend
    • NestJS backend API
    • Next.js web admin (optional)
    • Shared TypeScript, Tailwind CSS (NativeWind), Shadcn/ui
    • PostgreSQL + Prisma ORM
    • Docker for local dev and CI
  • Features & Integrations
    • Custom authentication, RBAC, session management
    • Real-time A/B testing (PostHog, GrowthBook)
    • Feature flags, analytics (Hotjar, Mixpanel)
    • CI/CD pipelines (GitHub Actions, GitHub Pages)
    • Modular testing (Jest, Detox, Supertest)
    • Observability tooling
  • Business Impact
    • Accelerated MVP delivery (12 weeks)
    • Developer velocity via clean architecture
    • UI/UX informed by market research
    • Performance optimization and real-time analytics

EV-Buddy: Test-Driven Application Development

Live Demo & Details

Aug 1, 2025

Mobile App Developer | Technical Architect:

  • Platform & Stack
    • Android (Kotlin, Jetpack Compose)
    • Gradle 8+, JVM
    • Android Studio Narwhal
  • Features & Implementation
    • Tab-based navigation: Home, My Requests, Profile
    • Home screen: EV Buddy header, Find Fixed Charger, Find Mobile Power Driver
    • Mock driver listing: name, distance, arrival time, rating
    • Responsive UI components, state management
    • Modular architecture, reusable components
  • Testing & Quality Assurance
    • JUnit unit tests
    • Espresso UI/instrumentation tests
    • Automated test scripts (run_all_tests.sh)
    • 100% test coverage, color-coded results
  • Engineering Considerations
    • Error boundaries, user feedback
    • Ready for API integration and feature expansion
    • Scalable, maintainable codebase
  • Demo & Deliverables
    • Live demo video (see repo)
    • Portfolio-quality source code

NextLaunch: SaaS Next.js & AI Boilerplate

Live Demo & Details

Jul 9, 2025 - Jul 20, 2025

SaaS Growth Hacker | Data Shaman | Code Alchemist:

  • Frontend Development
    • Next.js 14 (App Router)
    • React (JSX, Components)
    • Tailwind CSS
    • Shadcn/ui (UI Components)
  • Backend Development & Architecture
    • Next.js API Routes
    • Server-Side Logic & Rate Limiting
    • Database ORM: Prisma
  • AI Integration
    • OpenAI API (Chat Interface)
    • AI-Powered Features
  • Authentication & Authorization
    • Clerk (User Authentication, Social Logins)
    • Protected Routes
    • User Profile Management
  • Payments & Subscriptions
    • Stripe Integration (One-Time & Recurring)
    • Webhooks (User Role Management)
  • Database & Infrastructure
    • PostgreSQL (Neon)
    • Environment Variables Configuration
  • Deployment & DevOps
    • Vercel (One-Click Deployment)
    • GitHub (Version Control)
  • Email Integration
    • Resend (Transactional Emails)
  • Testing & Quality Assurance
    • Production-Ready
    • Attention to Scalability
  • Essential Tools
    • npm (Package Management)
    • Git (Version Control)
    • VS Code

AiderCraft: AI-Powered Conduit Roster

Live Demo & Details

Jul 18, 2025

AI-Augmented DeveloperAI Agent Testing Architect | Full-Stack Developer | AI Integration Specialist:

  • Frontend Development
    • Angular (TypeScript)
    • HTML/CSS
    • Component-Based Architecture
  • Backend Development & API
    • NestJS (Node.js/TypeScript)
    • REST API Design & Implementation
    • MySQL (Database Interaction)
  • AI Assistance & Code Generation
    • Aider CLI (AI-Assisted Code Generation and Modification)
    • Prompt Engineering & Iterative Refinement
  • Development Environment & Tools
    • VS Code (or similar IDE)
    • Codespaces (Cloud-Based Development Environment)
    • Node Package Manager (npm)
  • Testing & Quality Assurance
    • Manual Testing (Feature Validation)
    • Debugging (Browser Developer Tools, NestJS Debugging)
  • Version Control
    • Git
    • GitHub (Repository Hosting)
  • Documentation
    • API Documentation (Swagger/OpenAPI)
    • Project README

Operation Check-In: AI Agent Testing Framework

Live Demo & Details

Jul 15, 2025 - Jul 18, 2025

AI Agent Testing Validation Architect | AI Agent Behavior Analyst:

  • AI Agent & Testing

    • Claude AI (Agent)
    • MCP (Model Context Protocol)
    • FastMCP (Server)
    • Test Case Design & Validation
  • Backend Development & Automation

    • Python
      • Bash
    • Test Scripting
  • Containerization & DevOps

    • Docker
    • GitHub (Version Control)
  • Essential Tools

    • uv (Python Package Installer)
    • VS Code
    • Anthropic API

Bodies By Beach Bodies: Single Page Application (SPA) With Modern JavaScript Tool Stack

Live Demo & Details

Jan 13, 2025 - Feb 2, 2025

Full-Stack JavaScript Engineer | UI/UX Designer:

  • Frontend Development & SPA Architecture
    • Next.js (React) for server-side rendering and static site generation
    • Tailwind CSS for mobile-first, responsive design
    • Component-based UI development with Storybook
  • Backend & Database
    • MongoDB Atlas for scalable cloud data storage
    • API integration and data fetching with Gwak
  • Testing & Quality Assurance
    • Cypress for end-to-end testing
    • Jest for unit and integration tests
  • DevOps & Deployment
    • GitHub Actions for CI/CD
    • Vercel/Netlify for automated deployment
  • Design & Wireframing
    • Figma and wireframe.cc for UI/UX prototyping
    • Canva for visual assets
  • Accessibility & SEO
    • Semantic HTML, ARIA attributes, and screen reader support
    • Server-side rendering for SEO optimization
  • Key Features
    • Mobile-first, performance-optimized SPA
    • Partnership page for stakeholder recruitment
    • Extensive service and facilities listings
    • User-friendly navigation and contact forms

PersonaForge: AI-Powered Career Toolkit

Live Demo & Details

Dec 15, 2024 - On-Going

Full-Stack AI Engineer | Cloud/DevOps Architect:

  • Backend Development & Architecture

    • Ruby on Rails 8.0
    • PostgreSQL (Secure data storage)
    • Redis & Sidekiq (Session management & background jobs)
  • AI & API Integration

    • OpenAI API (Dynamic generation of resumes, cover letters, etc.)
    • Intelligent Content Personalization
  • Containerization & Orchestration

    • Docker (Multi-stage builds for production)
    • Docker Compose (Local development orchestration)
  • Cloud Infrastructure & IaC (GCP)

    • Terraform (HCL for provisioning and management)
    • Google Cloud Platform (GCP)
      • Cloud Run (Containerized application deployment)
      • Cloud SQL (Managed PostgreSQL)
      • Memorystore (Managed Redis)
      • Cloud Storage (Terraform remote state & locking)
  • CI/CD & Automation

    • GitHub Actions
      • Automated Security Scanning & Vulnerability Assessment
      • Code Quality Checks
      • Automated Docker Image Builds
      • Multi-Environment Deployment Validation
  • Testing & Quality Assurance

    • RSpec
      • Unit, Integration, and System Tests
  • Observability & Monitoring

    • Prometheus (Metrics collection)
    • Grafana (Data visualization & alerting dashboards)
    • Sentry (Error tracking)
    • Google Cloud Monitoring (Infrastructure metrics)
    • User Analytics & Interaction Tracking
  • Authentication & Security

    • Devise & Warden (User authentication)

Bulldawg Davis Consulting

Live Demo & Details

Jun 13, 2025 - Jun 17, 2025

Full-Stack Software Engineer | Web Application Developer:

  • Frontend Development
    • HTML5, CSS3, Vanilla JavaScript
    • Bootstrap 5 (Responsive components)
    • SimpleLightbox (Image gallery)
  • Backend Development (Node.js)
    • Express.js
    • Middleware: CORS, body-parser
  • Key Features & Architecture
    • Responsive, Mobile-First Web Design
    • Secure Contact Form Submission API

Project WeSpark: Full-Stack Dashboard Monorepo

Live Demo & Details

May 28, 2025 - Jul 5, 2025

Full-Stack Engineer with Monorepo & Cross-Platform Expertise:

  • Architecture & Development Ecosystem
    • Monorepo Structure (for end-to-end development)
    • Version Control: Git & GitHub
    • API Testing & Documentation: Postman
    • Development Environment: Windows Subsystem for Linux (WSL) with Ubuntu 22.04 LTS
  • Frontend (Web Dashboard)
    • Angular 16 & TypeScript
    • Single-Page Application (SPA)
    • HTML5, CSS3
    • HttpClientModule (for API communication)
  • Backend API
    • Node.js & Express.js
    • Middleware: CORS
    • Data Persistence: Native fs module (for local JSON storage)
  • Mobile Client (Cross-Platform)
    • .NET MAUI & .NET 7
    • C# (Logic)
    • XAML (User Interface)
    • IDE: Visual Studio 2022 / VS Code
  • Planned Cloud Architecture (AWS)
    • API Gateway (API management)
    • AWS Lambda (Serverless compute)
    • Amazon DynamoDB / RDS (Scalable database)
    • IAM (Security & access management)

CIW JavaScript Specialist Certification Prep (1D0-735)

JavaScript Developer | Client-Side Specialist:

  • Core JavaScript Fundamentals
    • Syntax, Data Types & Operators
    • Control Flow (if/else, switch, loops)
    • Functions, Scope & Parameters
    • Arrays & Objects (Built-in & Custom)
  • DOM & Browser Interaction
    • DOM Manipulation (Selection, Modification, Creation)
    • Event Handling (Listeners, Event Object, Bubbling)
    • Dynamic Styling with JavaScript
  • Web Forms & Interactivity
    • Form Element Access & Control
    • Client-Side Form Validation
    • JavaScript-Controlled Form Submission
  • Intermediate Techniques & Best Practices
    • Advanced Control Structures
    • Error Handling with try...catch
    • Working with Language Objects (String, Math, Date)
  • Course Focus & Application
    • 1D0-735 Exam Preparation
    • Hands-on Labs & Practical Projects
    • Building Interactive & Dynamic Web Pages

Titan Coffee Run: Full-Stack Development for Titans' Coffee Run Coffee Shop

Live Demo & Details

Oct 24, 2024 - Nov 24, 2024

Full-Stack Engineer with Frontend and Backend Development Expertise:

  • HTML, CSS, JavaScript
  • Node.js, JSON Server
  • Mocha, Chai for Testing
  • Architecture & Development
    • Full SDLC
    • Planning & Requirements Gathering
    • Design & Prototyping
    • Development (Coding)
    • Testing & Quality Assurance
    • Deployment
    • Maintenance & Support
    • Documentation
  • E-commerce Platform for Coffee Delivery
    • Responsive Web Design
    • User Authentication and Account Management
    • Order Processing and Checkout System
    • Data Visualization with Chart.js

TitanCoffeeRunRails: Ruby on Rails Web Application

Live Demo & Details

Dec 9, 2024 - Jul 7, 2025

Backend Engineer | Ruby on Rails Developer:

  • Backend Framework & Database
    • Ruby on Rails
    • PostgreSQL (Relational database)
    • RESTful API Design
  • Core Services & Architecture
    • E-commerce Platform Architecture
    • Redis (Caching & Session Store)
    • Sidekiq (Background Job Processing)
  • Testing & Quality Assurance
    • RSpec (Testing Framework)
    • Unit & Integration Testing
  • Deployment & Dependencies
    • Docker (Containerization for deployment)
    • Bundler (Ruby dependency management)

Automated WordPress Deployment on AWS

Live Demo & Details

Dec 19, 2024 - Dec 22, 2024

Cloud & DevOps Engineer:

  • Infrastructure as Code (IaC) & Automation
    • AWS CloudFormation (for automated provisioning of all resources)
  • CI/CD Pipeline (AWS DevOps Suite)
    • AWS CodePipeline (Continuous delivery orchestration)
    • AWS CodeBuild (Automated builds)
    • AWS CodeDeploy (Automated deployments to EC2)
  • Scalable & High-Availability AWS Architecture
    • Compute: EC2 Instances in an Auto Scaling Group (ASG)
    • Database: MariaDB / MySQL (on RDS or self-managed on EC2)
    • Networking & Content Delivery:
      • Elastic Load Balancer (ALB) for traffic distribution
      • CloudFront (CDN) for caching static assets
      • Route 53 for DNS management
    • Storage: S3 for scalable media storage & backups
    • Security:
      • AWS WAF (Web Application Firewall)
      • IAM Roles & Policies for least-privilege access
      • VPC & Security Groups for network isolation
  • Operations, Monitoring & Cost Management
    • Amazon CloudWatch (Metrics, logs, and alarms)
    • Comprehensive cost optimization strategies (Right-sizing, lifecycle policies)
    • Database Management Tooling (MariaDB CLI, phpMyAdmin, DBeaver)

Project Overhaul

Live Demo & Details

May 12, 2024

Full-Stack Engineer with System Administration Expertise:

  • Python Scripting
    • Jupyter Notebooks
    • JupyterLab
  • Architecture & Development
    • Full SDLC (Planning & Requirements Gathering, Design & Prototyping, Development (Coding), Testing & Quality Assurance, Deployment, Maintenance & Support, Documentation)
  • SaaS

Musicinxin: Legacy Ansible Playbook Migration To Linux Via iOS Application

Live Demo & Details

Sep 11, 2023 - Sep 17, 2023

VMware Administrator & DevSecOps Engineer:

  • Client-to-Server Software Engineer & Systems Administrator
    • Ansible
    • Apple Swift (iOS)
    • Linux
  • SaaS

Interview Cake Weekly Problem 532 Find Rotation Point

Live Demo & Details

Nov 26, 2024 - Dec 5, 2024

JavaScript Developer with Algorithm Optimization Expertise:

  • Algorithm Design & Optimization
    • Binary Search
      • Hash Set
      • Hash Table
      • Nested Loop Join
  • Unit Testing
    • Jest
  • JavaScript & Node.js
    • ES6 Modules
    • Babel Transpilation
  • Continuous Integration
    • GitHub Actions
  • Documentation & Code Quality
    • README.md
    • MIT License
  • Tools & Technologies
    • Visual Studio Code
    • Git, Git Bash, & GitHub
    • Node.js CI
    • Pretty Print JSON

Process Improvement

History In The Making

Anyone with vision for a better tomorrow should take steps in manifesting their ideal.” - SID SMITH

🌱 I’m currently learning Computer Science and Engineering.
💬 Ask me about anything.
⚡ Fun fact: I have a natural passion for finding solutions to problems while considering solutions-based performance tailored to Client's requirements. <br

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