Oh, hello, nice to meet you!
My name is Danh Le.
Software Engineer 2 @ Ultra Mobile | Full Stack Developer specializing in React, TypeScript, Next.js & E-commerce Solutions
About Me
I'm a Full Stack Developer with extensive experience in building modern web applications using React, TypeScript, Next.js, Laravel, and cloud technologies. Currently working as Software Engineer 2 at Ultra Mobile, I specialize in creating performant, scalable e-commerce solutions and enterprise applications.
My passion lies in solving complex technical challenges, optimizing web performance, and delivering exceptional user experiences. I've successfully reduced page load times by 99.9%, eliminated blocking JavaScript, and built AI-powered solutions that enhance customer engagement.
Areas of Expertise
Dual-Platform Architecture
WordPress/WooCommerce (PHP/MySQL) AND Next.js/React (TypeScript/SSR) - maintaining sister brands on different tech stacks
Modern Frontend
React, TypeScript, Next.js with server-side rendering, and component-driven architecture
DevOps & Infrastructure
Docker containerization, microservices, CI/CD with Jenkins and Bitbucket Pipelines
Backend Development
PHP, Node.js, RESTful APIs, and WordPress plugin development
Quality & Testing
Cypress E2E testing, unit testing, and integration testing
Optimization Tools
A/B testing with Optimizely, performance optimization, and analytics integration
Development Practices
Atomic design methodology, Storybook component libraries, design systems, Git workflows, and agile sprint management
Leadership & Mentorship
Team onboarding, code reviews, technical debt elimination, and cross-functional collaboration
Professional Experience
Software Engineer 2
May 2022 - PresentUltra Mobile
Costa Mesa, CA
- Develop and maintain dual-platform e-commerce: WordPress/WooCommerce (ultramobile.com) and Next.js/React (mintmobile.com)
- Built custom cart integration bridging mobile app and web for seamless family line purchases
- Created dynamic Family Plan Builder with multi-line account management and real-time pricing
- Implemented Promotions Manager reducing campaign deployment time by 50%
- Lead Cypress E2E test automation and integration testing initiatives
UX Developer
Jan 2020 - May 2022Ultra Mobile
Costa Mesa, CA
- Promoted to Software Engineer 2 within 2.5 years for technical leadership
- Developed reusable component libraries using Storybook and atomic design
- Integrated Optimizely for A/B testing and experimentation
- Collaborated with design team on UX improvements increasing conversion rates
Lead Front-end Developer
Jan 2018 - Jan 2019Mobovida, LLC
Orange County, CA
- Led frontend development for e-commerce platform
- Implemented responsive design and mobile-first approach
- Mentored junior developers on best practices
Lead Web Developer
Aug 2017 - Jan 2018OneClickSolar.com
Orange County, CA
- Architected and developed solar energy e-commerce platform
- Integrated third-party APIs for real-time solar panel pricing
- Optimized site performance achieving sub-2s page load times
Intermediate Programmer
Dec 2016 - Jul 2017Rebar Interactive
Orange County, CA
- Developed custom WordPress themes and plugins
- Built RESTful APIs for mobile app integrations
- Contributed to agency's internal development workflow improvements
Web Developer
Jul 2016 - Sep 2016360 Business Consulting
Orange County, CA
- Developed business websites using WordPress and custom PHP
- Implemented SEO best practices and analytics tracking
- Provided technical consulting for small business clients
System Administrator
Nov 2013 - Jul 2016e4Hats.com
Orange County, CA
- Managed e-commerce infrastructure and server maintenance
- Implemented automated backup and disaster recovery procedures
- Reduced system downtime by 80% through proactive monitoring
Technologies & Tools
My expertise spans across modern web development, cloud infrastructure, and e-commerce platforms
Frontend
React & Next.js
Enterprise-level applications with modern React, TypeScript, and Next.js framework
TypeScript
Type-safe, scalable applications for large-scale e-commerce platforms
JavaScript ES6+
Modern JavaScript for full-stack development and API integration
Backend
AWS & Cloud
Cloud infrastructure with AWS Lambda, API Gateway, serverless architecture
Ecommerce
WordPress/WooCommerce
Custom theme development, e-commerce platforms, and customer portal integrations
E-commerce Development
Product management, payment processing, plan configuration systems
Devops
Cypress Testing
End-to-end test automation ensuring quality and reliability
Optimizely & Storybook
A/B testing, experimentation, and component-driven development
Docker & DevOps
Containerization with Docker, automated CI/CD pipelines
Personal Projects
Side projects showcasing full-stack development, AI integration, and modern web technologies
Shopify Headless E-commerce
Production-ready headless e-commerce platform achieving perfect 100/100 Lighthouse scores. Deployed on this portfolio and as standalone Shopify headless storefront with real product catalog.
- Perfect Lighthouse Scores: 100/100 Performance, Accessibility, Best Practices, SEO
- Exceptional Core Web Vitals: 0ms Total Blocking Time, 0.028 Cumulative Layout Shift, 1.4s Largest Contentful Paint
- Lightning-fast page loads: 0.9s First Contentful Paint, 0.9s Speed Index
- Full WCAG AA accessibility compliance with optimized contrast ratios
AI Chatbot with Dual Behavioral Strategies
Production-ready AI chatbot built in 1 week using Strategy Pattern. Live on this portfolio & ecommerce sites with dual personalities: Portfolio Strategy answers resume/project questions, Ecommerce Strategy handles product search & order tracking.
- Portfolio Strategy - Answers questions about resume, projects, and experience
- Ecommerce Strategy - Product search, order tracking via Shopify Admin API
- Strategy Pattern architecture enables easy addition of new chatbot personalities
- 216 comprehensive unit/integration/E2E tests with 100% passing
ADU Cost Matcher - Reverse Budget Calculator
Innovative ADU cost calculator: set your budget, see what you can build. Empowers homeowners with clear cost trade-offs before design.
- Reverse cost calculator - Budget first, design second (unique approach)
- Interactive feature/material configurator with real-time pricing
- Cost breakdown visualization showing per-sqft impact
- Educational trade-off analysis: "Upgrade finishes? +$50/sqft"
Credit History Monitoring Application
Comprehensive fintech credit monitoring app integrating Plaid (transaction data) and Experian (credit reports) with Flask dashboard.
- Real-time credit card balance & utilization tracking
- Transaction history analysis with spending insights
- Experian credit report integration and monitoring
- Responsive Flask web dashboard with visualizations
Get In Touch
I'm always open to discussing new projects, creative ideas, or opportunities to be part of your visions.
Or send me an email directly at:
danhle@danhle.net