Ryan Jarnutowski

Personal Projects

A showcase of personal technical initiatives and creative engineering projects that demonstrate passion for building, learning new technologies, and solving interesting problems beyond the workplace.

Technical Projects

Personal software development and engineering initiatives

Full-Stack SaaS

Fish & Game Club Management Platform

Complete SaaS solution with Flutter mobile application and AWS serverless backend. Implements Clean Architecture with multi-tenant support, serving club management, event coordination, and member workflows.

Technical Highlights:

  • • Multi-platform Flutter app (iOS/Android/Web) with Material Design
  • • AWS SAM serverless backend with TypeScript/Node.js
  • • Clean Architecture with Riverpod state management
  • • JWT authentication with role-based access control
  • • Subscription-based SaaS model with extensible architecture
Flutter/Dart AWS SAM DynamoDB TypeScript Clean Architecture Riverpod
Embedded Systems

Professional Firework Ignition System

Industrial-grade wireless ignition system using ESP32 microcontrollers and LoRa communication. Safety-critical embedded system with 128+ cue capacity and comprehensive emergency controls.

Engineering Features:

  • • Dual-unit architecture: transmitter station + field receiver
  • • Modular C++17 design with 12+ custom libraries
  • • LoRa 915MHz long-range wireless communication
  • • Industrial I/O with MCP23017 GPIO expanders
  • • Safety features: dry-run mode, watchdog timers, emergency stop
C++17 ESP32 LoRa Embedded Systems Safety-Critical Industrial I/O
IoT & Automation

Indoor Hydroponic Garden Automation

Comprehensive automated hydroponic system with environmental monitoring, nutrient management, and remote control capabilities. Integrates multiple sensors and control systems for optimal plant growth.

System Components:

  • • Multi-sensor monitoring (pH, EC, temperature, humidity)
  • • Automated nutrient dosing and water management
  • • LED grow light scheduling and intensity control
  • • Data logging and historical trend analysis
  • • Remote monitoring and alert notifications
IoT Sensors Automation Data Logging Environmental Control Remote Monitoring

Woodworking Projects

Custom woodworking projects combining traditional craftsmanship with modern technology

Woodworking

Custom LED-Enhanced Cornhole Boards

Hand-crafted cornhole boards using soft maple and cherry wood, featuring embedded black light LED systems and glow-in-the-dark epoxy resin surfaces. Combines traditional woodworking with modern electronics.

Craftsmanship Details:

  • • Premium soft maple and cherry wood construction
  • • Embedded black light LED system for dramatic effect
  • • Glow-in-the-dark epoxy resin playing surface
  • • Precision hole cutting and edge finishing
  • • Custom electrical integration and switching
Woodworking LED Integration Epoxy Resin Electrical Systems Precision Crafting

Cooking

A collection of recipes and cooking experiments

Recipes and Guides

Pizza

Inspired by a passion for crafting genuine pizza with fresh, high-quality ingredients—both homegrown and Italian imports—this guide shares my journey through the world of pizza styles and dough science. Explore my favorite recipe and tips for making exceptional pizza at home.

Beyond the Day Job

These personal projects showcase my passion for continuous learning, technical exploration, and creative problem-solving. They complement my professional experience and demonstrate initiative in exploring new technologies and domains.