You will get a custom React, Next.js or Node.js feature for your web app

Let a pro handle the details

Buy Web Application Programming services from Norina, priced and ready to go.

Let a pro handle the details

Buy Web Application Programming services from Norina, priced and ready to go.

Project details

Need a feature added to your existing React, Next.js, Svelte, or Node.js app? I will review your current codebase and build a clean, maintainable update that fits your product without forcing a rebuild.

From dashboard enhancements and user workflows to API integrations, authentication, database changes, and responsive UI improvements, I work across frontend and backend to deliver the agreed functionality. I can work from Figma files, screenshots, user stories, or a clear feature brief.

With 5+ years of full-stack and mobile development experience, I focus on practical integration, security, reliable testing, and clear communication. My Upwork track record includes 7 completed contracts, all rated 5.0, with a 100% Job Success Score.

You receive tested source-code changes and a clear handover for the agreed scope. Send your feature idea and current app details, and I’ll help move it forward.
Programming Languages
JavaScript, TypeScript
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Security
What's included
Service Tiers Starter
$199
Standard
$499
Advanced
$999
Delivery Time 3 days 7 days 14 days
Number of Revisions
123
Number of Pages
135
Design Customization
Content Upload
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Responsive Design
Source Code

Frequently asked questions

Norina A.Status: Offline
Norina A.Status: Offline
Full-Stack Developer | React, Next.js, Node.js, Mobile Apps, AI
Edison, United States - 6:43 pm local time
𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲𝗱 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗥𝗲𝗮𝗰𝘁 | 𝗡𝗲𝘅𝘁.𝗷𝘀 | 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 | 𝗦𝘃𝗲𝗹𝘁𝗲 | 𝗡𝗼𝗱𝗲.𝗷𝘀 | 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 | 𝗔𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻

I'm a Full Stack Developer with 5+ years of experience in building fast, scalable, and real-time web and mobile applications using React Native, SvelteKit, Node.js, Supabase, and Firebase. I specialize in cross-platform app development, AI automation, and modern backend services using technologies like ChatGPT API, OpenAI Realtime API, REST, and GraphQL. Whether you're launching an MVP, building a SaaS app, or integrating AI chat, I can help you bring your ideas to life end to end.

I build intelligent, mobile-first, full-stack solutions using JavaScript, TypeScript, SvelteKit, and Node.js, paired with realtime services like Firebase and Supabase. From React Native mobile apps and web portals to automated systems and admin dashboards, I deliver clean, modular, and future-ready apps that run on the latest tech stack.

𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗢𝗳𝗳𝗲𝗿𝗲𝗱:

𝟏. Full Stack App Development:
React Native, Node.js, SvelteKit, JavaScript, TypeScript, REST APIs, GraphQL, Express.js, Supabase, Firebase

𝟐. AI Automation & ChatGPT Integration:
OpenAI API, ChatGPT, LangChain, AI workflow integration, Chatbots, Realtime automation, NLP-enabled apps

𝟑. Mobile App Development:
Cross-platform apps with React Native (iOS & Android), Expo, push notifications, GPS tracking, offline-first apps

𝟒. Backend Development:
Supabase edge functions, Firebase cloud functions, JWT auth, user management, scalable REST APIs, real-time databases

𝟓. Svelte & Frontend Web Development:
SvelteKit, TailwindCSS, UI/UX design, responsive layouts, reusable component libraries, Figma to code

𝟔. Payment Gateway Integration:
Stripe, PayPal, Razorpay, secure checkout flows, subscriptions, eCommerce logic, webhooks

𝟕. Real-Time Features:
Firebase Realtime DB, Supabase Realtime, WebSockets, in-app messaging, activity feeds, event sync

𝟖. App Store & Cloud Deployment:
Vercel, Netlify, App Store Connect, Google Play Console, TestFlight, GitHub Actions, CI/CD pipelines

𝟗. Third-Party & Social Integrations:
Google Login, Facebook, OAuth2, Maps, QR scanner, YouTube embed, camera/file access, calendar sync

𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲:

- 5+ years experience with React Native, Node.js, Svelte & full stack app delivery
- Strong focus on clean code, scalable architecture & responsive mobile-first design
- Seamless real-time features, AI chatbot integrations, and modern API connectivity
- End-to-end project ownership: planning, development, launch, and long-term support
- Collaborative and clear communication with fast delivery & agile mindset

Full Stack Developer | React Native Developer | Node.js Developer | Svelte Developer | SvelteKit Expert | AI Automation Developer | ChatGPT Integration | OpenAI Developer | Supabase Developer | Firebase Expert | TypeScript Developer | JavaScript Engineer | Cross-Platform App Developer | Realtime App Development | SaaS Platform Builder | Mobile App Developer | Stripe Integration | Backend API Developer | Cloud Deployment | Agile Developer | OAuth Integration | REST API Developer | GraphQL Developer | Web App Developer

📩 Ready to build your next full stack mobile or web app with AI-powered automation and real-time performance? Let’s connect and get started today.

Steps for completing your project

After purchasing the project, send requirements so Norina can start the project.

Delivery time starts when Norina receives requirements from you.

Norina works on your project following the steps below.

Revisions may occur after the delivery date.

Review the existing app

I review the current codebase, feature requirements, dependencies, and integration points.

Plan the feature integration

I confirm the implementation approach, user flow, data changes, and expected deliverables.

Review the work, release payment, and leave feedback to Norina.