Senior Full Stack Developer | Top Rated Developer | AI-Powered Web & Mobile Apps | 20+ Projects Completed
Ready to build a high-performance AI-powered web or mobile app? With 4+ years of experience in Full Stack Development (Flutter, Node.js, React, Next.js), I deliver secure and scalable digital products that solve real business problems. I specialize in end-to-end development, including backend APIs, modern frontend interfaces, and cross-platform mobile apps with AI integration.
I work with React, Next.js, Node.js, Express.js, Flutter, Firebase, and Supabase, with strong experience in AI APIs, automation workflows, and real-time systems using OpenAI and Gemini. I also build custom business platforms, client dashboards, admin systems, and AI-powered tools that improve user experience, automate operations, and support business growth.
Full-Stack Web Development
==========================
MERN Stack: MongoDB, Express.js, React.js, Node.js for scalable applications
Next.js: SSR and SEO-optimized web apps
TailwindCSS for responsive and clean UI
Real-time features with WebSockets and dashboards
Custom admin panels, CMS systems, and analytics dashboards
Marketplace, business websites, and service platforms
Responsive landing pages with fast performance and clean architecture
Mobile App Development
==========================
Flutter for cross-platform apps (Android & iOS)
AI-powered features (chatbots, recommendations, automation)
Firebase integration (auth, database, notifications)
Performance optimization with stable and smooth UX
App store submission and optimization
Production-ready apps with scalable structure
Bug fixing, feature upgrades, UI improvement, and release support
Backend Development & APIs
==========================
Node.js and Express.js for scalable backend systems
REST APIs, AI APIs, and real-time communication
MongoDB and Firebase Firestore
JWT and RBAC for secure authentication
AI integrations (OpenAI, Gemini APIs)
Third-party API integration, payment systems, and automation logic
Secure backend architecture for startups and growing platforms
Custom Web Development
==========================
AI-powered SaaS platforms and automation systems
Admin dashboards and analytics systems
Booking platforms and service systems
E-commerce with AI recommendations
CRM systems with automation workflows
Learning platforms, business management tools, and internal systems
Custom portals for clients, teams, and operations
AI Integration & Intelligent Systems
==========================
AI chatbots for web and mobile
AI content generation systems
Recommendation engines
Workflow automation (support, tracking, responses)
AI agents and smart search systems
AI-powered forms, assistants, and productivity tools
Automation for customer support, lead handling, and user engagement
OpenAI, Gemini, prompt-based systems, and AI-enhanced user flows
Security & Authentication
==========================
JWT/OAuth2 authentication
Role-based systems (RBAC)
Secure coding and data protection
Protected APIs, secure user sessions, and permission management
Cloud Integrations & Third-Party Services
Firebase and Supabase
Stripe and PayPal integrations
AI API integrations and automation systems
Notifications, storage, authentication, and cloud-connected services
Why Choose Me?
Top Rated developer with proven delivery
Strong AI-focused development experience
20+ projects across mobile, web, and AI
End-to-end development (frontend + backend + mobile + AI)
Fast MVP delivery with scalable architecture
Clean, maintainable code
Business-focused solutions, not just coding
Clear communication, regular updates, and reliable delivery
Industries I Serve:
AI Applications, SaaS, E-Commerce, Booking Systems, Ride-Hailing, Learning Platforms, Photo Editing Apps, Remote Control Apps, Travel, Logistics, Social Platforms, On-demand Services, FinTech, Healthcare, Business Automation, Internal Tools, Productivity Platforms, Marketplace Systems, Service Platforms.
Projects I’ve Built:
========
AI Recipe Generation App
AI Cybersecurity Learning App
Photo Editing App (3K+ downloads)
Universal Remote Control App (10K+ downloads)
Ride-Hailing App
AI Chatbot Systems
AI Content Generator Platforms
Booking Platform
E-commerce Systems
Admin Dashboards & SaaS
Delivery & Driver Apps
Learning App
Tour & Travel App
Business Website Platforms
Customer Support Automation Tools
Barber Booking App
Dashboard & Management Systems
If you’re looking for a developer who can build AI-powered web, backend, and mobile applications, I’d love to collaborate.
Let’s build a scalable and intelligent product.
Regards
Gemechu Hunduma.
Full-Stack Web Developer | AI App Developer | Mobile App Developer | Senior Full-Stack Developer | AI Integration Specialist | Backend API Development | React Developer | Next.js Developer | Node.js Developer | Flutter Developer | MERN Stack Developer | AI Automation Developer | SaaS Developer | JavaScript Developer | TypeScript Developer
Flutter
Firebase
AI Agent Development
Next.js
AI Mobile App Development
TypeScript
React
Node.js
ExpressJS
PostgreSQL
MongoDB
Supabase
SaaS Development
Full-Stack Development
Ecommerce Website
Mobile App
Website Performance Optimization
Stripe
PayPal
Payment Gateway Integration
Bereket A.
Addis Ababa, Ethiopia
$15/hr
4.1
9 jobs
🚀 Scalable Mobile Apps & AI Integrations Built for Growth
Stop worrying about technical debt or missed deadlines. I help startups and businesses launch production-ready iOS and Android applications that scale with your user base.
Whether you need a complex AI-powered feature, a marketplace platform, or a full-stack SaaS mobile solution, I deliver clean architecture that keeps your app maintainable long after launch.
💡 How I Solve Your Problems
✅ Reduce Risk – I use proven patterns like BLoC and Clean Architecture to minimize bugs and reduce future refactoring costs.
⚡ Accelerate Your Launch – Build your MVP faster with Flutter and FlutterFlow without compromising quality.
🤖 Future-Proof Your Product – Integrate OpenAI, Gemini, Firebase, and Supabase to keep your app competitive and ready to scale.
🛠️ Core Expertise
📱 Mobile Development
Flutter
Dart
iOS
Android
React Native
🧠 AI & Backend
AI/LLM Integration (OpenAI, Gemini)
Firebase
Node.js
PostgreSQL
REST & GraphQL APIs
🚀 Deployment
App Store & Google Play Store Submission
CI/CD Pipelines
🌟 Recent Success Stories
📸 MemoryRevive
AI-powered image restoration and animation app using Gemini and Kling AI.
✈️ GoSkyHy
Travel platform featuring real-time booking, location services, and seamless user experiences.
📖 Discovery Bible
Published Christian application with strong user engagement.
🤝 Why Work With Me?
💬 Clear and proactive communication
📅 Transparent progress updates
🏗️ Clean, scalable, production-ready architecture
🎯 Business-focused solutions—not just code
🤝 A long-term technical partner invested in your product's success
📩 Let's Build Something Amazing
Ready to build an app your users will love?
Click "Invite to Job", and let's discuss how we can bring your idea to life.
Flutter
Dart
Firebase
Mobile App Development
AI Mobile App Development
iOS Development
Android App Development
AI Development
API Integration
Node.js
PostgreSQL
Supabase
React Native
Clean Architecture
FlutterFlow
App Store
Google Play
Naol K.
Addis Ababa, Ethiopia
$3/hr
5.0
1 jobs
I build fast, reliable, and scalable mobile applications that perform seamlessly on Android and iOS. Teams bring me in when they need someone who can think through architecture, execute cleanly, and ship production-ready apps without cutting corners.
I’m Naol Kecha, a Software Engineer specializing in Flutter and full-stack systems. I help startups and businesses turn ideas into polished, high-performance applications. Every project I work on is easier to maintain, performs better, and reaches release with fewer surprises.
🎯 How I Can Help You
• Build cross-platform mobile apps using Flutter and Dart
• Design clean, scalable app architecture with Riverpod, Bloc, Provider, or GetX
• Integrate Firebase (Auth, Firestore, Cloud Functions, Messaging)
• Develop REST APIs and custom backends with Node.js or Python (FastAPI)
• Implement secure authentication and data handling
• Convert Figma designs into pixel-perfect, responsive Flutter UI
• Prepare, publish, and maintain apps on App Store and Google Play
• Apply AI-assisted workflows to speed development without compromising quality
Client Approach & Results
I focus on clear communication, stable features, and efficient problem-solving. Clients trust me to deliver predictable, maintainable, and high-quality applications from start to finish.
Skills & Technologies
Mobile: Flutter, Dart, Android & iOS Deployment, Push Notifications
State Management: Riverpod, Bloc, Provider, GetX
Backend: Firebase, Node.js, Python (FastAPI), REST APIs
Cloud & DevOps: Git, GitHub Actions, Codemagic CI/CD, Docker
Databases: SQLite, MySQL, PostgreSQL, MongoDB, Hive, Shared Preferences
Caching: Redis
Practices: Clean Architecture, SOLID Principles, Postman, API Testing, Store Compliance
Let’s Get Started
If you want a Flutter developer who delivers clean, maintainable code, communicates clearly, and treats your project like their own, send me a message on Upwork. Let’s turn your idea into a production-ready mobile app.
Flutter Developer, Flutter Engineer, Mobile App Developer, Cross-Platform App Developer, Dart Developer, Flutter Firebase, Firebase Auth Firestore FCM, Flutter REST API Integration, Flutter State Management, Riverpod Bloc Provider GetX, Flutter Clean Architecture, Flutter AI Integration, FastAPI Backend, Node.js Backend, Full Stack Flutter Developer, Mobile App Deployment, App Store Play Store Publishing, CI/CD Codemagic, Docker Deployment
Flutter
Dart
Firebase
Mobile App
Android App Development
Web Development
MERN Stack
React
Python
JavaScript
REST API
Full-Stack Development
AI Implementation
MySQL
iOS Development
Dejen A.
Addis Ababa, Ethiopia
$5/hr
5.0
4 jobs
I’m a senior full-stack engineer with deep experience building high-performance web and mobile applications end-to-end. I specialize in modern JavaScript/TypeScript ecosystems — Next.js, React, Node.js, Express, NestJS, and Flutter/React Native — and I deliver scalable, secure, and production-ready solutions that solve real business problems.
I’ve led and contributed to projects in fintech, e-commerce, SaaS platforms, booking systems, delivery apps, and custom dashboards, working with both startups and established companies. Whether it’s architecting a backend, optimizing a frontend for speed, designing APIs, integrating third-party services, or deploying to cloud environments, I focus on clean code, reliability, and long-term maintainability.
What you can expect from me:
Clean, modern UI with pixel-perfect responsiveness
Robust, scalable backend systems (REST APIs, DB design, auth, caching)
Problem-solving mindset with fast communication and on-time delivery
Complete project ownership from idea to deployment
Code that’s easy to maintain, extend, and scale
If you need a developer who can understand your business needs, communicate clearly, and deliver high-quality results — I’m ready to help you build something great.
Flutter
Dart
Firebase
React Native
HTML
CSS
JavaScript
Node.js
ExpressJS
REST API
MongoDB
Next.js
React
WordPress
Python
Betsegaw G.
Addis Ababa, Ethiopia
$12/hr
5.0
18 jobs
Highly skilled Mobile Application Developer with extensive knowledge of mobile app development and the entire application lifecycle. Passionate about innovation and mobile and web technologies.
My Skills:
🔹 Strong knowledge of architectural patterns and familiar with push notifications
🔹Committed to building excellent user experiences and ensuring new and legacy applications meet quality standards
🔹 writing clean, readable, testable code of the highest quality
🔹Proficient in dart, Flutter , and Kotlin and Swift
🔹Experieced with javascript frameworks like React and Vue
🔹 I have been working as a Flutter developer for 5 plus years
🔹 I have also worked on web development projects using different javascript frameworks like React and vue.js
🔹I can work independantly from start to finish .
Mobile App Development
MonetDB
MySQL
Web Development
App Development
API Development
Mobile App
Web Application
Application
API
Blockchain Development
RESTful API
NoSQL Database
Dame A.
Addis Ababa, Ethiopia
$5/hr
5.0
3 jobs
If you are building a SaaS product, startup MVP, or custom web application, I help you ship a scalable, production-ready product without wasting time or budget.
I work with founders and businesses to turn ideas into working products that are actually usable, testable, and ready for real users. No unnecessary complexity. No rewrites. Just clean, fast, production-ready development.
The difference: my systems have served 600,000+ real users. 30% faster backend. 50% less processing time. These are not portfolio pieces. They are live systems running right now.
Full-stack engineer specializing in Next.js, React, NestJS, and Node.js API development, building scalable SaaS platforms, AI-powered web applications, and production-ready MVPs designed for performance, growth, and long-term reliability.
REAL RESULTS
• 30% backend boost on a platform serving 600,000+ active users
• 50% faster order processing through SaaS workflow automation
• 70% faster product management in a live e-commerce SaaS platform
• 25% less operator workload through React and Next.js UI optimization
Real systems. Real users. Real impact.
WHAT GETS BUILT
• SaaS platform development: multi-tenant architecture, subscription billing, role-based access
• MVP development: full-stack SaaS MVPs delivered fast
• AI integration: OpenAI API, Claude API, LLM features, AI chatbots
• Next.js development: App Router, SSR, SSG, ISR, API routes
• React development: dashboards, SPAs, admin panels, TypeScript, Tailwind CSS, shadcn/ui
• NestJS development: REST API, GraphQL API, microservices
• Node.js development: scalable, secure backend systems
• Full-stack development: end-to-end Next.js, React, Node.js, NestJS apps
• Angular development: enterprise UI, RxJS, NgRx
• ASP.NET Core development: C#, Entity Framework Core
• Flutter development: cross-platform iOS and Android apps
• Stripe integration: subscriptions, Stripe Connect, webhooks
• Admin dashboard development: data-heavy, high-performance interfaces
• Real-time app development: WebSockets, Socket. io
• Figma to code: pixel-perfect UI
• Performance optimization: fix slow APIs and unstable systems
• Cloud and DevOps: AWS, Docker, Vercel, CI/CD, GitHub Actions
HOW WORK IS DONE
• Clean TypeScript code using SOLID principles
• Fully tested with Playwright and Jest (unit, integration, end-to-end)
• Clear communication and consistent updates
• Reliable delivery with no surprises
TECH STACK
Frontend: Next.js · React.js · Angular · TypeScript · Tailwind CSS · shadcn/ui · Material UI
Backend: Node.js · NestJS · Express.js · ASP. NET Core · C# · REST API · GraphQL · Microservices
Database: PostgreSQL · MongoDB · Redis · Prisma · TypeORM · Supabase
Mobile: Flutter · Dart · Firebase
Cloud: AWS (EC2, S3, Lambda) · Docker · Vercel · CI/CD · GitHub Actions
Testing: Playwright · Jest · unit testing · integration testing · end-to-end testing
Tools: Stripe · WebSockets · Socket. io · OpenAI API · Claude API · Git · GitHub
Next.js developer · React developer · Node.js developer · NestJS developer · full-stack developer · full-stack React developer · SaaS developer · MVP developer · AI developer · TypeScript developer · Angular developer · ASP. NET Core developer · Flutter developer · Stripe developer · GraphQL developer · PostgreSQL developer · MongoDB developer · API developer · web app developer · admin dashboard developer · full-stack Next.js developer
Based in Addis Ababa, Ethiopia (UTC+3, strong overlap with European clients). Available now. Send a message to start building.
Flutter
React
Next.js
ExpressJS
Full-Stack Development
Amazon Web Services
TypeScript
Node.js
AngularJS
ASP.NET
NestJS
SaaS Development
REST API
PostgreSQL
Supabase
SaaS
Minimum Viable Product
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