You will get full-stack web application with responsive design and secure backend
Project details
I create custom full-stack web applications that are secure, scalable, and user-friendly. Unlike generic templates, my projects are built from scratch to meet your specific business needs, combining modern front-end design with robust back-end functionality. Every application is optimized for performance, cross-device compatibility, and security, ensuring a smooth experience for your users. With clear communication and timely delivery, I help clients turn ideas into high-quality, fully functional web solutions that drive real results.
Programming Languages
PHP, HTML & CSS, JavaScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$5
|
Standard
$10
|
Advanced
$115
|
|---|---|---|---|
| Delivery Time | 3 days | 6 days | 10 days |
Number of Revisions | 3 | 6 | Unlimited |
Number of Pages | 10 | 15 | 25 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$5 - $15
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MC
Misgana C.
Apr 5, 2026
Flutter Developer for AI-Powered Mobile App
Gemtessa delivered amazing work and exceeded my expectations. He is professional, reliable, and highly skilled. Communication was smooth, and the quality of his work was excellent. I highly recommend him and would gladly work with him again.
About Gemtessa
Mobile & Full-Stack Engineer | Flutter, React Native, Laravel, AI
100%
Job Success
Addis Ababa, Ethiopia - 4:30 am local time
⭐ 5.0-star rated on Upwork: "Gemtessa delivered amazing work and exceeded my expectations. He is professional, reliable, and highly skilled. Communication was smooth, and the quality of his work was excellent." — client, Flutter Developer for AI-Powered Mobile App.
I'm a full-stack engineer, not just a mobile developer. That means I build your Flutter or React Native app, your Laravel or Node.js backend, your database, your admin dashboard, and your payment integration — myself. You hire one engineer who handles the entire project—from mobile app to backend, database, admin dashboard, and deployment—resulting in faster delivery, lower costs, and a seamless development process.
𝗠𝗢𝗕𝗜𝗟𝗘 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧
✅Flutter (Dart) and React Native — one codebase, both iOS and Android.
✅State management: Riverpod, Provider, Redux.
✅Firebase Auth — email/password, Google Sign-In, phone auth, including the SHA-1/SHA-256. ✅fingerprint configuration that trips up most developers.
✅Firestore, Cloudinary for real-time data and media storage.
✅Offline-first architecture for apps that work without constant connectivity.
✅Push notifications (FCM), real-time chat, matching/swipe features, VoIP/in-app calling (Agora).
✅Full Play Store publishing pipeline: closed testing setup, tester recruitment, the 14-day. ✅countdown, production rollout, and resolving Google's rejection reasons.
✅App Store submission via EAS Build & EAS Submit.
𝗕𝗔𝗖𝗞𝗘𝗡𝗗 & 𝗪𝗘𝗕 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧
✅Laravel and Node.js for backend APIs.
✅PostgreSQL and Firebase for data layers.
✅Next.js, React.js, Tailwind CSS for admin dashboards and web platforms.
✅REST API design and integration.
✅Payment gateways: Paystack, Stripe, PayPal — including routing subscriptions through. ✅compliant web checkout flows to work around Google Play billing policy restrictions.
✅Firestore security rules, CORS configuration, production deployment on Vercel.
𝗔𝗜 𝗜𝗡𝗧𝗘𝗚𝗥𝗔𝗧𝗜𝗢𝗡
✅Integrated Groq's AI API into a production app with proper engineering — exponential backoff, retry logic, and model fallback chains so the app stays reliable even when a request fails or rate-limits.
✅Comfortable building AI-powered tutoring/Q&A systems, content generation, chatbots, and recommendation logic.
𝗥𝗘𝗖𝗘𝗡𝗧 𝗣𝗥𝗢𝗝𝗘𝗖𝗧𝗦
✅SmartBrain — AI-powered exam-prep app for Nigerian secondary students (SS1–SS3, UTME prep). Built the Flutter app, a React/Vite admin dashboard, and a Next.js payment server on Vercel. Handled Firebase Auth, Cloudinary storage, Paystack payments, and Groq AI integration with fallback logic.
✅Nikah Link — Flutter matchmaking app with a Laravel backend. Managed the full Google Play closed testing process: recruited 12+ testers, resolved Google Sign-In SHA-1 mismatches, redesigned the photo gallery UX, and navigated repeated Play Console review cycles.
✅Document automation — built Node.js/Puppeteer tools that generate professional PDFs and PowerPoint decks programmatically.
𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗛𝗜𝗥𝗘 𝗔𝗡𝗗 𝗥𝗘𝗛𝗜𝗥𝗘 𝗠𝗘
✅ 5.0-star rated on Upwork for quality, reliability, and communication.
✅ Solved real production issues across mobile and web applications.
✅ One engineer for mobile, backend, web, and deployment.
✅ Clear communication with daily updates and milestones.
✅ Post-launch support, bug fixes, and ongoing maintenance.
✅ Delivered projects for clients in Nigeria, the UAE, and beyond.
✅ Fluent in English, Amharic, and Afaan Oromo.
𝗪𝗛𝗔𝗧 𝗜 𝗖𝗔𝗡 𝗕𝗨𝗜𝗟𝗗 𝗙𝗢𝗥 𝗬𝗢𝗨
✅ EdTech, LMS, and AI-powered learning platforms
✅ Social, dating, and matchmaking apps
✅ Marketplace, on-demand booking, and delivery apps
✅ FinTech, banking, and subscription/recurring payment apps
✅ SaaS platforms with mobile and web components
✅ AI chatbots, virtual assistants, and content generation tools
✅ Admin dashboards, CRM, ERP, HR, and inventory systems
✅ E-commerce apps with secure payment integration
✅ Healthcare, telemedicine, real estate, and travel/hotel booking platforms
✅ Logistics, food ordering, event ticketing, live chat/VoIP, IoT companion apps, and cross-platform REST API backends
Have an app idea? Let's talk. Whether you're starting from scratch or improving an existing product, I'll help you choose the right technology, avoid costly mistakes, and build a high-quality app that's ready for real users.
Steps for completing your project
After purchasing the project, send requirements so Gemtessa can start the project.
Delivery time starts when Gemtessa receives requirements from you.
Gemtessa works on your project following the steps below.
Revisions may occur after the delivery date.
Client Submits Requirements
The client provides project details, designs/mockups, functional requirements, preferred tech stack, content, and hosting credentials.
Project Planning & Confirmation
I review the requirements, clarify any questions, and confirm the project scope, timeline, and features with the client.