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Skills

  • App & Mobile Development
  • App Development
  • Mathematics
  • Microservices
  • PostgreSQL
  • AI Development
  • API Integrations
  • Architectural Engineering
  • Artificial Intelligence
  • Audio
  • Audio Processing
  • Caching
  • Civil Engineering
  • Cloud Infrastructure
  • Computer Vision

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Services

  • Full Stack application with AI expertise

    $50/hr Starting at $25 Ongoing

    Dedicated Resource

    Service URL : harmonyapp.ai I've made this MVP project using several techniques like computer vision, generative AI, web development, etc.  The aim of this project is to measure the face beauty and provide...

    AI DevelopmentAPI IntegrationsApp & Mobile DevelopmentApp DevelopmentArtificial Intelligence

  • Face Harmony Measurement APP-Beta

    $50/hr Starting at $30 Ongoing

    Dedicated Resource

    Upgraded the Harmony APP to beta version of the first version Harmony app. This app is improved in terms of visual and computational accuracy.                                                         ...

    App & Mobile DevelopmentApp DevelopmentFace RecognitionMathematicsResponsive Web Design

  • Company website management/draft manager

    $70/hr Starting at $50 Ongoing

    Dedicated Resource

    https://westchesterservices.com/ I am managing the company website.  I am also draft manager. Our company boasts a team of architects, civil engineers, and structural engineers licensed in all 50 states...

    API IntegrationsArchitectural EngineeringAudioAudio ProcessingCivil Engineering

About

Pro Full Stack Developer | AI/ML/LLM Integration | Shopfiy & WooCommerce | Mobile Development

Senior Software Engineer with 10+ years of experience building scalable web platforms, AI-powered applications, mobile apps, and high-converting Shopify eCommerce solutions.

I specialize in combining modern Full Stack development with AI/ML/LLM integration and advanced Shopify customization to help startups and enterprises launch fast, scale efficiently, and improve business performance.

Over the past decade, I have worked with mid-size and large-scale companies across SaaS, eCommerce, AI automation, fintech, and cloud platforms, delivering production-grade applications used by thousands of users worldwide.

Core Expertise:

✓ Full Stack Web Development
✓ Mobile App Development
✓ AI/ML/LLM Integration
✓ Shopify Store Development & Shopify Plus
✓ Custom Shopify Apps & Theme Development
✓ SaaS Platform Engineering
✓ API Development & System Architecture
✓ Cloud Infrastructure & DevOps

Technical Skills:

✓Frontend: React.js, Next.js, Angular.js, TypeScript, Tailwind CSS, Redux, HTML5 / CSS3, Backend, Node.js, Express.js, NestJS, Python, Django, FastAPI
✓ Mobile: React Native, Ionic, Android App Development, iOS App Development, Java, Kotlin, Swift, Objective-C
✓ AI/ML/LLM: OpenAI API, GPT-based Applications, LangChain, RAG Systems, AI Chatbots, Vector Databases, Prompt Engineering, AI Automation, Machine Learning Pipelines
✓ Shopify: Shopify Plus, Liquid, Shopify App Development, Headless Shopify, Store Migration, Custom Checkout, Subscription Systems, Payment Gateway Integration, Conversion Optimization
✓ Cloud & DevOps: AWS, Docker, Kubernetes, CI/CD, Firebase, Supabase, PostgreSQL, MongoDB, Redis

What Makes Me Different
✓Client First – Urgent support, transparent communication, and fast turnaround.
✓ Clean Code & Scalable Architecture – Maintainable, testable, and ready to grow.
✓ Real Business Results – Every feature serves a business goal, not just tech for tech's sake.

My Commitment to You
✓ Fast communication, flexible availability across time zones, and reliable delivery.
✓ I don’t just write code – I build solutions that work today and scale tomorrow.
✓ Let’s turn your idea into a powerful, production-ready solution.

Best regards,
Jonathon Ong