๐๐บ๐ฎ๐ด๐ถ๐ป๐ฒ ๐๐๐ฟ๐ป๐ถ๐ป๐ด ๐๐ผ๐๐ฟ ๐๐ฒ๐ฏ ๐ฎ๐ฝ๐ฝ ๐ถ๐ป๐๐ผ ๐ฎ ๐ฟ๐ฒ๐ฎ๐น ๐ถ๐ข๐ฆ & ๐๐ป๐ฑ๐ฟ๐ผ๐ถ๐ฑ ๐ฎ๐ฝ๐ฝ ๐ป๐ผ๐ ๐ฎ ๐๐น๐ผ๐ ๐๐ฒ๐ฏ๐๐ถ๐ฒ๐, ๐ป๐ผ๐ ๐ฟ๐ฒ๐ท๐ฒ๐ฐ๐๐ฒ๐ฑ ๐ฏ๐ ๐๐ฝ๐ฝ๐น๐ฒ, ๐ฎ๐ป๐ฑ ๐ป๐ผ๐ ๐น๐ผ๐๐ถ๐ป๐ด ๐๐๐ฒ๐ฟ๐.
Right now, most SaaS founders and businesses are losing users and revenue because their apps are not optimized for mobile, their App Store submissions get rejected, their Stripe or Supabase setup breaks on mobile, or their AI-powered systems are not working as expected.
Thatโs where I come in.
I help you convert, build, fix, and scale high-performance mobile apps and AI SaaS systems using Claude Code, React Native Expo, OpenClaw, and modern vibe coding tools without trial and error.
โ ๏ธ If Youโre Experiencing Any of These:
โ Your web app needs to be converted to iOS & Android
โ Apple keeps rejecting your app or it behaves like a webview
โ Stripe payments or Supabase auth not working on mobile
โ Your Lovable, Replit, or Base44 app is broken or incomplete
โ Your AI SaaS or automation system is not performing
โ Push notifications, offline mode, or native features missing
๐ Youโre losing users, retention, and revenue every single day.
โ ๐๐ก๐๐ญ ๐ ๐๐จ (๐๐ง๐ ๐๐จ ๐๐๐ญ๐ญ๐๐ซ ๐๐ก๐๐ง ๐๐จ๐ฌ๐ญ):
๐ฅ Web App to Mobile App Conversion Done Right
No weak webviews. I convert your web app into a real mobile app using React Native, Capacitor, or Expo with native performance and smooth UX.
๐ฅ AI SaaS & MVP Development That Actually Works
I build scalable AI SaaS apps and MVP platforms using Claude Code, OpenClaw, Gemini, and modern stacks designed for real-world usage and growth.
๐ฅ Vibe Coding & AI App Development
From Lovable, Replit, and Base44 apps to full AI-powered systems, I fix, rebuild, and optimize apps using advanced AI assisted development tools.
๐ฅ Mobile App Deployment & Store Approval
I handle App Store and Google Play submission, fixing rejection issues, optimizing performance, and ensuring your app gets approved and live.
๐ฅ OpenClaw Automation & Backend Systems
I build smart automation workflows, API integrations, and backend systems that reduce manual work to your business operations.
๐ฐ ๐๐ก๐๐ญ ๐๐จ๐ฎ ๐๐๐ญ:
โ๏ธ High-performance mobile apps (iOS & Android)
โ๏ธ Faster App Store approval & successful deployment
โ๏ธ Working Stripe, Supabase, and backend integrations
โ๏ธ AI-powered SaaS systems that scale with your business
โ๏ธ Clean UI/UX with smooth performance and real native experience
โ๏ธ Less manual work, more automation, more revenue
๐ง ๐๐ก๐ฒ ๐๐ข๐ซ๐ ๐๐?
Most developers:
โ Build slow webview apps
โ Break features during conversion
โ Donโt understand deployment or AI systems
I donโt.
I understand both:
โ๏ธ Mobile app architecture (what gets approved & performs well)
โ๏ธ AI SaaS systems & automation (what actually works in production)
That combination is why my clients donโt come back saying
๐ โItโs not working.โ
โก Letโs Be Direct:
If your app is not optimized for mobile, not deployed properly, or your AI system is not workingโฆ
You are already losing users, growth, and revenue every single day.
๐ฉ Next Step:
Send me a message or invite me to your job.
Iโll quickly review your project and tell you:
โ๏ธ Whatโs wrong
โ๏ธ Whatโs missing
โ๏ธ Whatโs blocking performance
โ๏ธ How to fix it fast
No fluff. Just results.
ai saas development, ai web app, ai app development, ai integration, ai agent systems, claude code, claude cowork, E commerce Website gemini ai, vibe coding, lovable ai app, replit app, base44 app, react native developer, react native expo, flutter app, mobile app development, ios android app, web app to mobile app, pwa to ios android, app conversion, app deployment, app store deployment, google play deployment, firebase, push notification, mvp app development, api integration, supabase, postgresql, authentication system, stripe integration, push notifications, offline mode, n8n automation, backend automation, app debugging, fix existing app, Progressive Web App, production ready app, next js, node js, mern stack, full stack development, frontend development, backend development, cross platform mobile app, hybrid mobile app, android app developer, ios app developer, ai saas mvp, ai web application, ai chatbot, api development, web developer, webhook integration, supabase auth, firebase auth, real time database, vercel deployment, cloud deployment, mobile app ui ux, dashboard, admin panel, crm system, booking system, real estate, ai video, higgsfield ai, stripe, firebase, supabase, website migration, lovable to ios, android kotlin, revenuecat, despia, capacitor, ionic angular, codex, react native app, app publish, pwa, vpn app, chrome extension development, ai video generation, App Store submission,Google Play deployment, fix app rejection, PWA to mobile app, Base44 developer, Lovable developer, Bubble developer, Replit developer, Open Claw developer, Vibe Coding developer, No code developer, cordova, polymarket tradind bot, kalshi bot, hermes.
iOS Development
Android App Development
Website to Mobile App Conversion
n8n
Automation
Website Migration
Website Plugin Installation
Website Prototyping
Website Integration
API Development
AI Agent Development
AI App Development
Chatbot Development
Full-Stack Development
Supabase
React Native
Replit
Firebase
Native App Development
Mobile App Development
Samson E.
Ikeja, Nigeria
$15/hr
5.0
13 jobs
Is your app idea still sitting in notes, stuck in FlutterFlow, or already built but not working the way users expect?
Either way, you are in the right place.
Hello! I'm Emmanuel.
A Flutter Developer, FlutterFlow Developer, AI App Developer, and Mobile UI UX Designer building clean, scalable mobile apps for startups, SaaS founders, coaches, marketplaces, service businesses, and teams.
I do not hand off pretty screens that break when real users touch them. Every app I build is structured around the real product goal: clear user flow, smooth onboarding, secure backend logic, fast performance, and a mobile experience people can trust.
Here's what that looks like in practice:
๐ Built FlutterFlow app systems with Firebase authentication, Firestore databases, user roles, dashboards, and backend workflows.
๐ Converted Figma designs into responsive FlutterFlow and Flutter mobile interfaces with clean UI, strong spacing, and smooth UX.
๐ Integrated real app features like APIs, push notifications, subscriptions, payments, Google Maps, booking flows, chat, admin panels, and AI-powered workflows.
๐๐ ๐๐๐๐๐๐๐:
Most developers start with screens. I start with product logic.
Before I build, I review what the app must do, who will use it, what data must be saved, and where users may get confused. Then every screen, action, and backend flow has one job: guide, process, or convert.
Step 1 โ Audit & Strategy: I review your idea, Figma file, current app, or FlutterFlow project and identify gaps in UI, UX, backend, database, API, or launch readiness.
Step 2 โ Structure: I map the screens, user roles, Firebase or Supabase database, authentication flow, app states, and key user actions.
Step 3 โ Build: I develop the app in Flutter, FlutterFlow, Firebase, Supabase, Dart, custom functions, custom code, or API workflows.
Step 4 โ Optimise: I test responsiveness, workflow logic, performance, database behavior, mobile usability, and broken edge cases before delivery.
Step 5 โ Launch Support: I help prepare the app for Play Store publishing, App Store submission, RevenueCat, Firebase setup, and production handoff.
๐๐๐๐ ๐ ๐๐๐๐๐:
โ Flutter App Development โ Custom iOS and Android apps with clean UI, scalable structure, backend integration, and smooth mobile performance.
โ FlutterFlow App Development โ MVPs, SaaS apps, booking apps, marketplaces, dashboards, AI apps, and business tools built fast without weak structure.
โ Firebase & Supabase Integration โ Authentication, Firestore, database rules, storage, real-time data, user profiles, and secure backend flows.
โ AI Mobile Apps โ AI chat, content generation, recommendation systems, automation flows, smart dashboards, and API-powered app features.
โ Figma to Flutter / FlutterFlow โ Mobile UI conversion with responsive layouts, modern design, clean spacing, and strong user experience.
โ API, Payments & App Features โ REST APIs, Stripe, RevenueCat, Google Maps, push notifications, chat, admin panels, and integrations.
๐ ๐๐๐๐๐๐๐๐๐ ๐๐๐๐๐ ๐๐๐๐๐๐๐๐๐
Q: Can you build my app in FlutterFlow instead of custom Flutter?
Yes. FlutterFlow is a strong choice for MVPs, SaaS apps, marketplaces, booking apps, dashboards, and AI apps that need to move fast.
Q: Can you fix or continue an existing FlutterFlow project?
Yes. I can audit workflows, app state, Firebase, Supabase, API calls, layout issues, and backend logic without rebuilding everything from scratch.
Q: Can you work from Figma designs?
Yes. I convert Figma designs into responsive FlutterFlow or Flutter screens while keeping the interface clean, modern, and user-friendly.
Q: Can you add AI features or handle deployment?
Yes. I can integrate AI chat, content generation, automation, APIs, payments, push notifications, and help prepare your app for App Store or Play Store launch.
If you need a Flutter Developer, FlutterFlow Developer, AI App Developer, or Mobile App Developer who can build more than screens, send me your app idea, Figma design, or current project. I will come back with a specific plan, not a generic pitch.
TL;DR โ Flutter Developer, FlutterFlow Developer, and AI App Developer. I build clean, scalable iOS and Android apps with Firebase, Supabase, APIs, payments, push notifications, AI features, dashboards, and launch-ready user flows.
Flutter Developer || Flutter App Developer || FlutterFlow Developer || FlutterFlow Expert || Cross Platform App Developer || iOS App Developer || Android App Developer || Mobile App Developer || Firebase Developer || Supabase Developer || Dart Developer || Mobile UI UX Designer || Figma to FlutterFlow || Flutter Firebase || Flutter API Integration || Flutter MVP Developer || Flutter AI App || AI App Developer || Stripe Integration || RevenueCat Integration || REST API Integration || Firestore Database || Firebase Authentication || Admin Panel Development || App Deployment || App Store Submission || FlutterFlow Firebase || FlutterFlow Supabase.
FlutterFlow
Mobile App Development
Flutter
Android App Development
Smartphone
Android App
Hybrid App Development
Firebase
Java
Mobile App
App Development
React
Hybrid App
Dart
API Integration
Payment Gateway
Stripe API
User Authentication
Node.js
Swift
Anthony E.
Awka, Nigeria
$30/hr
4.6
24 jobs
I am a highly experienced full-stack developer with over 15+ years experience in frontend, backend and mobile app development.
In all I have worked on over 300 projects and can deliver high quality results within reasonable time and budget.
Kotlin
Flutter
In-App Purchases
Android App Development
iOS Development
React
React Native
Mobile App Development
Android
Java
Android SDK
iOS SDK
NodeJS Framework
Sakirat O.
Ikare, Nigeria
$10/hr
5.0
4 jobs
I build AI-powered MVPs and micro-SaaS apps for founders and startups, from idea to deployed product in days, not months. My clients come to me with a vision, a napkin sketch, a Figma file, or a competitor's URL, and I turn it into a working product they can put in front of users.
Before Upwork I shipped 50+ projects across marketplaces, social networking apps, project management tools, CRM systems, real estate portals, food delivery applications, fitness trackers, and educational platforms. Each one went live, monetized, and served real users within weeks, not quarters. I bring that same speed to every Upwork engagement.
My stack and why I use it:
Frontend & full-stack: Lovable, FlutterFlow, Bolt.new, Next.js, React, TypeScript, TailwindCSS. I pick the tool that fits the timeline, not the one that fits my resume.
AI & LLMs: OpenAI, Anthropic Claude, Vertex AI, LangChain, OpenAI API. I have shipped RAG pipelines, AI chat assistants, content generation flows, and computer-vision features.
Backend & data: Supabase (Postgres, Auth, Realtime, Storage), REST APIs, serverless functions on Vercel and Cloud Run.
Mobile: Flutter, React Native (Expo, EAS Build, TestFlight), RevenueCat for in-app purchases, App Store and Play Store submission end to end.
Payments & billing: Stripe Checkout, Stripe Subscriptions, Stripe Customer Portal.
AI-assisted dev: Cursor, GitHub Copilot. I code with AI tooling daily, which is how I deliver 50-55% faster completion times and roughly 70% lower cost than a traditional agency engagement.
How I work:
Day 1: We lock the scope, the milestones, and the definition of done. No vague "build me an app" โ every feature gets a one-line acceptance criterion.
Week 1: You see a working prototype. Not a Figma mockup, not a slide deck, a deployed URL you can click through and share with your team or your investors.
Week 2-3: We iterate. You give feedback, I ship, you give more feedback. Fixed-price milestones so you only pay for shipped work.
Launch: I handle App Store and Play Store submission, production deployment, and a recorded handover walkthrough so your team can maintain the product without me.
I am based in Lagos, available 30+ hours per week, and I respond to messages within 4 hours during business hours. If you have a product idea you have been sitting on because you did not know who to trust with the build, send me a message. I will reply with questions, not a generic pitch.
AI App Development
Mobile App Development
AI Mobile App Development
Web Application
Full-Stack Development
FlutterFlow
Flutter
API Integration
SaaS Development
Conversational AI
Next.js
Android App Development
iOS Development
AI Agent Development
Supabase
iPad App Development
Hybrid App Development
Mobile App Development Consultation
Web Development
OpenAI API
Victor E.
Lagos, Nigeria
$30/hr
4.9
44 jobs
I'm an experienced mobile app developer/software engineer who has built numerous apps for startups and companies.
I currently work as an SDK developer for an auth/billing company where I work on libraries for Flutter (Dart), Android (Kotlin), iOS (Swift) and React-Native (TypeScript).
I can help you build stable and secure apps and developer tools.
Kotlin
Flutter
iOS
Android
Mobile App Development
Dart
Firebase
iOS Development
Smartphone
Tablet
Swift
Java
React Native
AI Mobile App Development
Figma
Android App
FlutterFlow
Mobile App
Mike O.
Ijebu Ode, Nigeria
$10/hr
5.0
15 jobs
Most startups, founders, and growing businesses already know what they want to build. The challenge is finding a Senior Full Stack Developer who can take ownership of the product, from architecture and MVP planning to frontend development, backend infrastructure, API integration, cloud deployment, automation, and long-term scalability.
I help startups, SaaS companies, agencies, and established businesses build modern web applications, SaaS platforms, AI-powered products, CRM systems, business software, marketplaces, customer portals, booking platforms, admin dashboards, automation platforms, Chrome extensions, and mobile applications using production-ready technologies.
My primary expertise includes React.js, Next.js, TypeScript, JavaScript, Node.js, Express.js, NestJS, PostgreSQL, MongoDB, Supabase, Firebase, AWS, Docker, Vercel, Tailwind CSS, Stripe, REST APIs, AI Integration, Workflow Automation, and Cloud Infrastructure.
As a Full Stack Developer, React Developer, Next.js Developer, Node.js Developer, SaaS Developer, Backend Engineer, API Integration Developer, and AI Developer, I build scalable applications that combine exceptional user experiences with secure backend systems and reliable infrastructure.
Whether you need to build an MVP, modernize an existing application, automate business workflows, integrate AI into your product, or scale an enterprise platform, I can help transform your vision into production-ready software.
What I Build
โ SaaS Platforms & Multi-Tenant Applications
โ Startup MVP Development
โ AI Applications & AI Integration
โ AI Chatbots & AI-Powered Business Tools
โ CRM Systems & ERP Solutions
โ Business Software & Internal Platforms
โ Customer Portals & Admin Dashboards
โ Marketplace Platforms & B2B Marketplaces
โ Booking & Reservation Systems
โ Financial Platforms & FinTech Applications
โ Healthcare & Telehealth Platforms
โ Real Estate Platforms
โ Mobile Applications (React Native & Flutter)
โ Chrome Extensions & Browser Extensions
โ Web Automation & Workflow Automation
โ API Integration & Third-Party Integrations
โ Payment Systems (Stripe, PayPal, Webhooks)
โ Cloud Deployment & DevOps
Core Technical Expertise
Frontend Development
React.js โข Next.js โข TypeScript โข JavaScript โข HTML5 โข CSS3 โข Tailwind CSS โข Redux โข React Query โข Responsive UI Development โข Front-End Development
Backend Development
Node.js โข Express.js โข NestJS โข REST API Development โข API Architecture โข Authentication โข Authorization โข JWT โข OAuth โข Backend Infrastructure โข Serverless Functions
Database Development
PostgreSQL โข MongoDB โข Supabase โข Firebase โข MySQL โข Database Design โข Database Optimization
AI Development & Automation
AI Development โข AI Integration โข OpenAI API โข Claude API โข AI Applications โข AI Platform Development โข AI Chatbots โข Workflow Automation โข Business Process Automation โข AI-Powered SaaS
Cloud & DevOps
AWS โข Docker โข Vercel โข Cloudflare โข CI/CD โข GitHub Actions โข Deployment โข Cloud Infrastructure โข Performance Optimization
Payments & Integrations
Stripe Integration โข PayPal โข Third-Party APIs โข REST APIs โข Webhooks โข API Integration
Industries I've Worked With
SaaS โข FinTech โข Healthcare โข Telehealth โข E-commerce โข Education โข Manufacturing โข Real Estate โข CRM โข ERP โข Recruitment โข Marketplace Platforms โข Booking Systems โข Marketing Platforms โข Business Automation
Why Clients Hire Me
I don't just build features, I help build products that are scalable, secure, maintainable, and ready for growth.
Clients value working with me because I provide:
โข Clean, production-ready code
โข Scalable software architecture
โข Strong frontend and backend engineering
โข Reliable API integration
โข Secure authentication and authorization
โข Optimized PostgreSQL and MongoDB database design
โข AI integration and automation expertise
โข Cloud deployment and infrastructure support
โข Clear communication and transparent progress updates
โข Long-term technical partnership
Whether you already have Figma designs, an existing codebase, or just an idea on paper, I can help you build a modern web application, SaaS platform, CRM, AI product, automation system, marketplace, Chrome extension, or mobile application from concept to production.
If you're looking for a Senior Full Stack Developer, React Developer, Next.js Developer, Node.js Developer, Backend Engineer, SaaS Developer, AI Developer, API Integration Developer, CRM Developer, Automation Engineer, or long-term technical partner, I'd be happy to discuss your project and recommend the best technical approach
Mobile App Development
App Development
React
JavaScript
Full-Stack Development
SaaS Development
Node.js
API Integration
Web Application Development
Next.js
TypeScript
Database Development
Supabase
PostgreSQL
User Authentication
Minimum Viable Product
Stripe
Tailwind CSS
AI Marketplace
REST API
How it works
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Kim Darling
Emerald Tiger
โUpwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.โ
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David Merry
Kinetic Investments
โOur very specific requirements can be a challengeโWith Upwork, weโre able to access a bigger community to ensure the success of our projects.โ
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Katja Krohn
Summa Linguae
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