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dezmathio/README.md

Hey, I'm Josiah (dezmathio)

Senior Software Engineer specializing in Ruby on Rails, Python, and AI-powered SaaS.
I build scalable, production-grade systems that blend practicality with creativity — from daily tracking apps to AI summarization tools, and many more.


Current Projects

  • err.day – Rails 8 app for tracking nutrition, habits, and sleep cycles with macro goals and gamified feedback loops.
  • YTC – Chrome extension + Rails backend for summarizing YouTube transcripts using LLM APIs, with Stripe-based paid tiers.
  • Delta Force Map Tracker – static site that displays dynamic rotation schedules in real time (accounting for dst).
  • chewsr -- fun little project done in an evening integrating yelp places to pick a place to eat near you.
  • Internal Utilities – Redis workers, background job orchestration, Fly.io deployment automation, Rails-native agent integration experiments, daily commute scripts, etc.

Tech Stack

Languages: Ruby, Python, JavaScript, SQL
Frameworks: Rails 8, Turbo/Hotwire, Stimulus
Infrastructure: Docker, Fly.io, Redis, Sidekiq, PostgreSQL
APIs & Tools: Stripe, OpenAI, GitHub Actions, Cursor, tmux, WSL,


Focus Areas

  • AI-native SaaS product development
  • Efficient, observable backend architecture
  • Rails 8 performance optimization & background jobs
  • LLM-assisted developer tooling

prior companies

  • USNews & World Report ~ Health
  • WeddingWire x TKWW ~ B2C
  • Poppir Inc. ~ B2B
  • eOriginal

Connect

LinkedIn
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[email protected]


“We’ve never been closer to dreaming an idea into existence than today.”

Pinned Loading

  1. elixir_ex elixir_ex Public

    Random elixir examples I've been working on as well as dailydrip examples

    Elixir

  2. underarmour underarmour Public

    A ruby wrapper for the Under Armour API

    Ruby 3 4

  3. spaghetti_test spaghetti_test Public

    custom script to load test a couple urls

    Ruby 1

  4. seagull seagull Public

    a vacation project I made with family

    Python