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Davidjos03/README.md

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Hi there, this is Ryan Yudantara! πŸ‘‹

Senior Frontend Engineer & FullStack Engineer | React β€’ Next.js β€’ Node.js, TypeScript β€’ AI Applications

Welcome to my GitHub!

I'm a Senior Frontend Software Engineer with 7 years of experience building modern, high-performance web applications, scalable backends, and AI-powered platforms.

My core focus is frontend engineering with React, Next.js, Vue.js, TypeScript, Tailwind CSS, and Material UI, backed by solid Node.js and Python backend experience and cloud deployments across AWS, Vercel, and Azure. I deliver production-ready solutions across Healthcare, FinTech, SaaS, AI, Blockchain, Gaming, and Enterprise environments.


πŸš€ About Me

  • Senior Frontend & Full Stack Engineer with 7 years of experience building web, mobile, cloud, and AI-powered applications.

  • Frontend-first expertise building responsive, accessible, and performant UIs with React, Next.js, Vue.js, TypeScript, Tailwind CSS, Material UI, and modern state management.

  • Solid backend experience with Node.js, Python, REST APIs, WebSockets, WebRTC, PostgreSQL, and microservices.

  • Content-driven product experience with headless CMS architectures and Sanity CMS for flexible, scalable content workflows.

  • Healthcare & HIPAA compliance β€” built secure, compliant platforms handling PHI, audit trails, access controls, and regulated data workflows.

  • Developed products across Healthcare, FinTech, Blockchain, SaaS, E-Commerce, Gaming, and Enterprise industries.

  • Experienced in building LLM-powered applications, AI assistants, RAG systems, intelligent search, workflow automation, and AI-driven business tools.

  • Daily user of Claude Code, Cursor, GitHub Copilot, Codex, and ChatGPT to accelerate development and improve engineering productivity.

  • Experienced with AWS, Vercel, Azure, Docker, CI/CD, caching, monitoring, and scalable cloud infrastructure.

  • Enjoy building clean, scalable, and maintainable software while mentoring engineers and driving technical excellence.


πŸ₯ Healthcare & HIPAA Compliance

  • Built and maintained HIPAA-compliant healthcare platforms with secure PHI handling, role-based access control, and audit logging.

  • Implemented healthcare data privacy and security best practices including encryption, secure APIs, and compliance-aware architecture.

  • Delivered patient-facing portals, clinical workflows, and enterprise health tech solutions in regulated environments.


πŸ€– AI & LLM Experience

  • Built AI-powered SaaS products, assistants, workflow automation tools, and enterprise AI solutions.

  • Integrated OpenAI and modern LLM technologies for chatbots, content generation, semantic search, and business automation.

  • Developed RAG solutions, vector search systems, knowledge-base assistants, and AI-enhanced analytics platforms.

  • Leveraged AI-assisted development tools including Claude Code, Cursor, GitHub Copilot, Codex, and ChatGPT throughout the software development lifecycle.


πŸ”— Blockchain Experience

  • Built full-stack Web3 applications including DeFi platforms, DEXs, trading platforms, launchpads, crypto payment systems, and gaming applications.

  • Integrated wallets, smart contracts, blockchain APIs, and on-chain data into web and mobile applications.

  • Developed real-time trading dashboards, portfolio management tools, and blockchain analytics solutions.


πŸ› οΈ Tech Stack & Specialties

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  1. FreshBridge---Food-Deliver-Me FreshBridge---Food-Deliver-Me Public

    FreshBridge - Modern food delivery and marketplace platform with order, inventory, payment, and logistics management.

    TypeScript

  2. solbet-frontend solbet-frontend Public

    High-performance React frontend for a Solana-powered betting platform with responsive UI, wallet integration, and real-time betting experience.

    TypeScript

  3. GASP-Cocktail GASP-Cocktail Public

    Modern cocktail showcase website with immersive GSAP animations, interactive UI, and responsive design built using React, Tailwind CSS, and Vite.

    TypeScript

  4. hadoop-mapreduce hadoop-mapreduce Public

    About hadoop mapreduce problems using hadoop version 3.3.0

    JavaScript