Open to new opportunities

Jeffery
Diaz

Senior Full Stack Engineer & Founder

7+ years building modern, high-performance web applications with React, TypeScript, and Node.js. Founder of YardWise — a cloud-native SaaS platform transforming geospatial soil datasets into dynamic recommendations for nationwide users. Based in Austin, TX.

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Work

Things I've built

Founder & Lead Engineer

YardWise

Live SaaS platform serving users across the United States Built and operated by a single engineer

Designed and built a production SaaS platform that transforms national soil datasets into real-time lawn care intelligence for homeowners across the U.S. Architected a distributed microservices system featuring a geospatial resolution pipeline (ZIP → lat/lng → SSURGO polygon → MUKEY → normalized soil profile), integrating USDA SSURGO and ISRIC SoilGrids data sources. Optimized report generation with Redis caching and asynchronous processing to deliver full soil intelligence reports in under 60 seconds under concurrent load.

Live Site

Tech Stack

React Native WebNode.jsTypeScriptPython (FastAPI)Google Cloud RunRedisStripeGA4

Franchise eCommerce Platform

At Resibrands, architected a multi-store franchise ecosystem combining Shopify storefronts and WordPress sites. Built reusable Shopify 2.0 theme templates, automation pipelines for cross-store sync, and integrated CRM, ERP, and analytics systems.

ShopifyTypeScriptLiquidWordPressREST APIsNode.jsGraphQLGoogle AnalyticsZapierNest.js
ResiBrandsThat1PainterPinks Window ServiceAction ExteriorsMonty's Handyman Services

Headless Shopify Storefront

At Amy Myers MD, built one of the company’s first fully headless Shopify storefronts using Storefront API and Admin API. Developed a custom React-based storefront architecture with reusable component systems, metafield-driven content, subscription workflows, and order pipeline integrations. Implemented API layers and data models supporting product personalization, marketing automation, and scalable front-end performance.

ReactNode.jsTypeScriptShopify APIGraphQLNest.jsGoogle Analytics
Amy Myers MD

Career

Experience

Founder & Lead Engineer

YardWise — Austin, TX

Jan 2025 — Present
  • ·Architected a distributed microservices platform using Node.js (Koa), TypeScript, Python (FastAPI), and React Native Web (Expo)
  • ·Built geospatial resolution pipeline: ZIP → lat/lng → SSURGO polygon → MUKEY → normalized soil profile
  • ·Implemented Redis caching and performance tuning to maintain sub-60s report generation under concurrent load
  • ·Designed versioned recommendation engine (v1–v3) with user intent modeling and contextual rule systems
  • ·Deployed to Google Cloud Run with containerized builds and CI/CD; built Stripe subscription and tokenized report monetization

Lead Web Developer

Resibrands, LLC — Austin, TX

Jan 2024 — Present
  • ·Architected and launched a franchised multi-store ecosystem combining Shopify storefronts and WordPress sites
  • ·Integrated Shopify with a third-party franchising platform enabling unique storefronts with centralized brand control
  • ·Created reusable Shopify 2.0 theme templates deployable across new franchise locations
  • ·Built automation pipelines to synchronize product, pricing, and content across all franchise stores
  • ·Migrated legacy systems into unified repositories using modern TypeScript architecture

Backend Developer

Bare Performance Nutrition — Austin, TX

Jul 2023 — Jan 2024
  • ·Designed and maintained scalable Node.js/TypeScript services supporting a high-volume Shopify ecommerce platform
  • ·Built RESTful services enabling seamless communication between Shopify, internal tools, and marketing platforms
  • ·Improved backend performance and scalability to support major product drops and traffic surges

Lead Developer

Amy Myers, MD — Austin, TX

Jun 2020 — Jul 2023
  • ·Architected one of the first fully headless Shopify builds integrating Storefront API, Admin API, and a custom React storefront
  • ·Led development of a React-based headless storefront UI with reusable component systems, improving performance, SEO, and accessibility
  • ·Developed API layers for order pipelines, CRM sync, customer segmentation, and analytics attribution
  • ·Mentored developers, managed sprints, and established coding standards across the engineering team

Frontend Web Developer

Harris Media — Austin, TX

Sep 2018 — Jun 2020
  • ·Built modern, responsive UI components using React, HTML5, CSS3, and JavaScript for high-visibility digital campaigns
  • ·Collaborated with designers to translate wireframes and design systems into scalable frontend components
  • ·Optimized web applications for performance, accessibility, and cross-browser compatibility

Toolkit

Skills

Frontend

  • JavaScript (ES6+)
  • TypeScript
  • React
  • Next.js
  • React Native Web
  • Gatsby
  • HTML5 / CSS3

Backend

  • Node.js
  • Python
  • REST APIs
  • GraphQL
  • MongoDB
  • MySQL / MariaDB
  • Redis

Infrastructure

  • AWS (S3, EC2, Lambda)
  • Google Cloud Run
  • Vercel
  • Netlify
  • Docker
  • CI/CD
  • Git

Platforms & Tools

  • Shopify (Storefront & Admin API)
  • Geospatial Systems
  • Stripe
  • Jest
  • LambdaTest
  • Ghost Inspector

Contact

Let's build something

Open to founding engineer roles, full stack positions, and interesting projects. Let's talk.

jefferydiaz@getyardwise.com
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