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Hello! My name is Cody. I'm a mobile developer with particular expertise in building applications with Claude Code, FlutterFlow, Flutter, Firebase, Supabase, Cloud Functions, Edge Functions, and Buildship. I have solo-developed and published full-stack applications to the App Store, Play Store, and web with 5000+ daily active users. I can own every aspect of the development cycle and would love to bring your application to life! TECHNICAL PROFICIENCIES: ● Programming Languages: Dart, TypeScript, JavaScript, Python, SQL, Swift ● Mobile Development: FlutterFlow, Flutter, React Native, Xcode, Android Studio, Expo, CocoaPods ● Web Development: FlutterFlow, React, Redux, Gatsby, Node.js, Webpack, Shopify, Ruby on Rails, Google Analytics ● Automation: , Buildship, Zapier, Make, n8n, Airtable ● Databases: PostgreSQL, Firebase, Supabase, SQLite, MySQL, MongoDB ● UI/UX Design: Figma, Tailwind CSS ● APIs & Tools: OpenAI, Anthropic, Gemini, Gemma, RevenueCat, SendGrid, Posthog, Appsflyer, Google Places, Firebase Cloud Messaging, OneSignal, GraphQL, REST, Heroku, Netlify, Sequelize, Apollo, Git, AWS S3, Docker, Postman ● Testing: FlutterFlow E2E, Cypress, Jest Native, Jest

You need a frontend engineer who thinks like a product owner. Someone who doesn't just ship clean code, but understands why users abandon a flow, why a page feels slow even when it isn't, and how to bridge the gap between a designer's vision and a production-ready application. I'm Deyen, a Frontend Engineer and Creative Technologist with 14 years of experience building responsive, performant, and accessible web applications. My stack centers on React, Next.js, TypeScript, Node.js, and Tailwind CSS, and I bring both engineering depth and a design sensibility that most developers don't have. Here's what I can help you with: → Building full-featured web apps with Next.js and React from scratch → Architecting scalable component libraries and design systems → Turning Figma designs into pixel-perfect, responsive UIs → Performance optimization: Core Web Vitals, bundle size, lazy loading → Integrating REST APIs, GraphQL, and third-party services → Leading frontend on the full product lifecycle, from requirements to deployment I've managed the complete product lifecycle, from gathering business requirements and translating them into technical specs, to implementing, testing, and refining based on real user feedback. I communicate clearly, hit deadlines, and flag problems early. I don't disappear after handing over code. I make sure what I build actually works in the real world. *Frontend: React, Next.js, TypeScript, JavaScript (ES6+), Tailwind CSS, CSS Modules, Framer Motion *Backend/API: Node.js, REST APIs, GraphQL, Prisma *Tooling: Git, Vercel, Jest, Story Accessibility (WCAG), responsive design, performance optimization, CI/CD If you're building something that needs to look great, work fast, and scale, let's talk. Send me a message with a brief overview of your project and I'll get back to you within 24 hours.

I am a senior front-end engineer with over 15 years of experience building products for startups and enterprise clients. Proficient working with HTML, CSS, Javascript, and the latest frameworks like Vue, and Node. Focusing on standards-based, modern, responsive web design practices using HTML5, CSS3, and SASS/LESS. Extensive experience in site optimization on Wix, SquareSpace and landing pages. Taking slow websites and getting scores into the 90s using Google Page Insights.

🌍 Hello, World! Senior Software Engineer with 11 Years of Experience Full-Stack Engineer • Real-Time Data Specialist • Payments & AI Integrations 🏆 11 years building high-performance web applications 🚀 Architected real-time fintech, DeFi, and ecommerce services end to end 💼 Payment integrations handling thousands of daily transactions ⭐ Cut render times, errors and failures, deploy times 🎓 Experience across eCommerce, fintech, web3, and AI/ML 🤝 Accountable unlike your AI ❤️ Why Clients LOVE My Work: Fast, reliable communication True full-stack range I'll own the problem front to back Metrics-driven: fewer bugs, faster deploys, cleaner pipelines Comfortable leading mid-to-large, technically complex projects I turn messy, complex data into interfaces people can actually use 💡 What I bring to your project Architecture-first engineering I start with the data model and the system design, not the framework of the week. You get scalable microservices, resilient pipelines, and clean component libraries instead of brittle glue code. Technical depth Low-latency backends in Node.js, Rust, and Go. Real-time event pipelines with Kafka, Flink, Pulsar, and tRPC. I consolidate complex data flows into fast, reliable systems that hold up under load. Full-stack, full-lifecycle delivery React & React Native front-ends, TypeScript component libraries, backend services, cloud infra (AWS, Docker, Kubernetes, Terraform), CI/CD, observability, and testing. Proven results 50% faster client-side renders via WebAssembly. 85% test coverage that cut production bugs. Payment error reductions of 10–50%. Deploy times halved. Interactive data visualizations that made noisy data usable. 🎯 What I deliver 📊 Real-time dashboards and data visualizations (d3.js, three.js, WebGL/WebGPU, plotly, TradingView) ⚡ Custom Shopify Plus/Platinum builds, integrations, and payment solutions 📈 Backend systems that scale as your traffic grows 📚 Maintainable, well-tested code with documentation your team can build on 🤖 LLM / AI integrations and MCP tooling ❌ Not a fit for 💸 Cheap, throwaway builds 🧱 Copy-paste template jobs ⏱️ Cut-corner projects that ignore maintainability ✅ A strong fit for 👔 Founders and teams building something technically serious 📉 Products outgrowing no-code tools and needing real engineering 🏢 Companies that need real-time data, custom eCommerce work, or AI integrations done right I build resilient back-end systems and clean, user-driven front-ends, and I care about shipping code that's maintainable long after I've handed it off. Whether you need a custom Shopify build, a real-time data dashboard, a full-stack app, or an AI integration, I'd love to hear what you're working on. Let's hop on a call and figure out how to build it right.

I am a US-based Computer Scientist, Technical Architect, and AI Solutions Engineer with 30 years of experience. I am certified as Expert Vetted on UpWork (top <1% of all users), with 5-star rating, rave reviews, and 100% success score. ➤ Career Highlights I've worked with startups, Fortune 500 companies (Ford), and government agencies (CDC), and have held executive roles (CTO, CEO) at two successful startups doing millions in revenue with products reaching tens of millions of users worldwide. I also author and maintain open source libraries downloaded 25+ million times per month, used in production at GitHub and Microsoft. GitHub uses them in their core infrastructure and is one of my financial sponsors (more info below). ➤ What I Do I design and build software systems that scale — from architecture blueprints and database infrastructure to full production applications (backend, infrascruture, frontend, and more). My recent focus has been on AI-powered platforms, including LLM integration, AI agent development, multi-agent orchestration, and tool-calling pipelines using OpenAI, Claude, and open source models. ➤ AI & Agentic Development I build production AI systems — not wrappers around ChatGPT. Recent work includes multi-agent orchestration with tool-calling loops, MCP server development for document analysis, LLM-powered scoring and recommendation engines, and AI-assisted codebase analysis across 170k+ line codebases. I work daily inside Claude Code, OpenAI, and OpenRouter APIs. ➤ Why Technical Architecture Matters Most technical projects fail because they have a poor architecture blueprint — or none at all. Most developers aren't architects, and without the right foundation, even projects that make it to launch grind to a halt within months as technical debt makes it impossible to build further. I create full "bone structures" on the code, database, and server levels that establish patterns developers can build on confidently. By mapping out growth tracks early, we ensure the system can scale without endless rewrites. This is the difference between another great idea that stalls and a multi-million user success story. ➤ Open Source I wrote and maintain multiple open source libraries used worldwide, collectively downloaded over 25 million times per month. Highlights include the TypeScript compiler tools (~3M/month), node-html-parser (~20M/month), and node-html-markdown (~1.4M/month). GitHub itself financially sponsors this work, which is part of their core infrastructure. ➤ Working with Me I partner with startups, established companies, and enterprise teams who need expert-level architecture, AI integration, or full-stack development. I often deliver 2-4x faster than typical senior developers — clients regularly find the final cost beats offshore alternatives, because it's done right the first time and delivered faster. ➤ UpWork Stats ⁍ Expert Vetted (top <1%) + Top Rated Plus ⁍ $400k+ completed, 5-star rating ⁍ Rave reviews (most clients leave multiple reviews per project) ⁍ Almost all clients form long-term partnerships ➤ More Info ⁍ UpWork Reviews: See below ⁍ GitHub: nonara (pinned projects are all maintained by me) ➤ Keywords TypeScript, JavaScript, Node.js, Python, React, PostgreSQL, MySQL, AWS, Docker, Kubernetes, Electron, C#, .NET, Swift, Prisma, Redis, GraphQL, REST API, Next.js, FastAPI, Flask, Terraform, Pulumi, Shopify, AI Agent Development, LLM Integration, OpenAI API, Claude API, MCP Server, Model Context Protocol, Multi-Agent Systems, Tool-Calling Pipeline, RAG, Prompt Engineering, Context Engineering, Claude Code SDK, SWE-Agent, AI Agent SDK, Multi-Agent Orchestration, Web Scraping, Playwright, Browser Automation, Browser Extension Development, Chrome Extension, Cross-browser Extension, Solutions Architecture, Database Optimization, Infrastructure as Code, DevOps, CI/CD, Full-Stack Development, Technical Leadership, Code Rescue, ANTLR, CEF, Chromium Embedded Framework, ts-patch, TypeScript Compiler Plugin, TypeScript AST, TypeScript Compiler, Compiler Design, Language Server Protocol, LSP, Parser Development, BrowserView, Embedded Browser, Desktop Application, node-html-parser, node-html-markdown, V8 Engine, PostgreSQL V8, Custom Protocol, Reverse Engineering, Packet Analysis, WireShark Plugin, ArtNet, DMX, pcap, Database Forensic Recovery, IPv6 Scraping, Shopify App, Remix, Angular, PHP, Bash, OAuth, Auth0, SSO, JWT, WebRTC, SocketIO, Monorepo, Webpack, Vite, WordPress, n8n, Node-RED, Twilio, Stripe, GitHub Actions, GitLab CI, React Native, Firebase, pgvector, Embeddings, Vector Database, SaaS Architecture, Multi-tenant

I bridge the gap between high-end 3D design and modern web development. I specialize in building interactive 3D web experiences, commercial product configurators, and spatial digital twins using React Three Fiber, Three.js, and WebGL. My focus is on taking complex 3D assets (GLB/GLTF) and engineering them into buttery-smooth, browser-based applications without sacrificing performance or visual fidelity. Whether you need a dynamic e-commerce customizer or an architectural real estate viewer, I handle both the 3D technical assembly (Blender) and the frontend execution (React/Next.js). Core Tech Stack: Frontend: React, Next.js, JavaScript, GSAP 3D/WebGL: React Three Fiber, Three.js, WebGL Asset Pipeline: Blender, GLB/GLTF optimization, PBR Texturing Specialties: Commercial Product Configurators (Material swapping, dynamic pricing) Digital Twins & Architectural Viewers Modular 3D Node Hierarchies & Scene Optimization Premium UI Integration for 3D Canvas