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$18/hr
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Jenil S.
has worked
.
Top Rated Plus Flutter and FlutterFlow developer with 100% Job Success, 4,600+ Upwork hours and 45+ mobile apps delivered.
I help startups turn app ideas, Figma designs and unfinished codebases into production-ready iOS and Android applications.
Clients usually contact me when they need to:
• Build a new mobile app or MVP from an idea, requirements document, or Figma design
• Take over an unfinished FlutterFlow or Flutter project and complete it correctly
• Fix bugs, broken workflows, API issues, performance problems, or App Store rejections
• Design a secure Firebase or Supabase backend with authentication and role-based access
• Add payments, subscriptions, push notifications, maps, real-time data, or AI features
CORE SERVICES
• Flutter and Dart development for Android and iOS
• FlutterFlow MVP, SaaS, marketplace, booking, and subscription apps
• Firebase: Authentication, Firestore, Cloud Functions, Storage, FCM, and Analytics
• Supabase: PostgreSQL, Auth, Row Level Security, Storage, Edge Functions, and real-time data
• REST API, third-party SDK, Stripe, RevenueCat, Razorpay, and in-app purchase integration
• Figma-to-Flutter or Figma-to-FlutterFlow responsive UI implementation
• Custom FlutterFlow actions, widgets, Dart code, and exported-code improvements
• App Store, TestFlight, and Google Play release support
WHY CLIENTS HIRE ME
• I can work in both FlutterFlow and custom Flutter, so the solution is not limited by the visual builder
• I review architecture and risks before development instead of only implementing tickets
• I provide clear progress updates and practical recommendations
• I can join an existing team or take ownership from planning through deployment
• I provide a 30-day bug-fix warranty for issues within the agreed project scope
A GOOD FIT IF YOU HAVE
• A startup MVP that needs a realistic scope, architecture, and delivery plan
• A polished Figma design that must be implemented accurately
• A FlutterFlow app that needs Firebase, Supabase, custom code, or deployment help
• An existing Flutter codebase that needs debugging, refactoring, or new features
Selected client feedback:
“Jenil doesn’t just execute—he elevates everything around him. He is extremely solution-oriented and has a unique ability to turn complex ideas into something real, buildable and shippable.”
Send me your app idea, Figma file or existing Flutter/FlutterFlow project. I will review it and recommend the clearest technical path, realistic timeline and next steps.
$40/hr
100%
Job Success
Available now
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Mutiu O.
has worked
.
Flutter · Supabase · Firebase · AI Integrations · Stripe · Angular Admins · Next.js · Ionic/Capacitor
Hi—I'm Mutiu Oyekunle, a full-stack mobile/web engineer with 10+ years of experience building production-ready mobile and web applications. My recent work includes AI products, booking platforms, payment systems, logistics tools, and App Store applications built with Flutter, Supabase, Firebase, and Next.js.
I build cross-platform Flutter applications backed by Supabase/Firebase and serverless Deno Edge Functions, wrap them with robust Angular admin portals, launch fast Next.js + Tailwind marketing sites, and keep everything production-ready with Sentry monitoring and automated Appflow/Bitrise CI.
Core strengths
• Flutter & Dart – pixel-perfect iOS/Android applications
• Supabase – PostgreSQL, RLS, Edge Functions, triggers, cron jobs, webhooks
• Firebase – Authentication, Firestore, FCM, Crashlytics, Analytics
• Payments – Stripe, Stripe Connect, RevenueCat, PayPal, local gateways
• AI / OpenAI APIs – chat, assistants, image generation, scoring endpoints
• Google Maps – live tracking, geofencing, route optimisation
• Admin dashboards – Angular + Material / Bootstrap
• Landing sites – Next.js + Tailwind CSS
• DevOps – Appflow / Bitrise CI, Sentry monitoring
• Hybrid – Ionic & Capacitor migrations, native plugin integration
Selected work
• Check-Up Basketball – Production Flutter application featuring Firebase Data Connect (PostgreSQL), Stripe payments, Stripe Connect payouts, App Store subscriptions, bookings, push notifications, wallet flows, and production deployment.
• ThisFiTT – AI-powered Flutter application with OpenAI integrations, App Store subscriptions, premium plans, AI-generated training programs, and production deployment.
• Delvo – Logistics DMS with live driver tracking, route management, Stripe payouts, Angular admin portal, and Next.js marketing site.
• Pocket Parlour – Bilingual beauty booking application built on Supabase with RevenueCat subscriptions, RTL support, appointment scheduling, and admin management.
• Reedo X – Gift-card and crypto wallet with Flutter, Laravel APIs, secure wallet architecture, payment integrations, and Next.js landing site.
• DeepPrep – AI-powered study platform using Supabase, Deno Edge Functions, OpenAI, Stripe billing, scheduled jobs, analytics, and monitoring.
• Textie.ai – Converted a large Angular web application into a fully native mobile app using Capacitor, including push notifications and native file access.
• Backroom Mobile – Modernized an industrial barcode-scanner application from Ionic 3 to Ionic 7 + Capacitor, replacing legacy Cordova plugins, adding secure offline storage, and automating CI/CD with Appflow.
• InnDex – Construction operations platform featuring barcode scanning, photo annotation, offline workflows, and field operations.
• Fataba Marketplace – Marketplace platform with map-based discovery, dynamic pins, category filters, and scalable backend integrations.
How I work
Define scope and milestones with clear user stories.
Design scalable database schemas, RLS policies, triggers, and backend architecture.
Develop Flutter applications, Angular admin portals, and Next.js websites (or Ionic/Capacitor when appropriate).
Automate builds with Appflow/Bitrise and monitor production using Sentry.
Deploy, support, and iterate using analytics, crash reporting, and continuous feedback.
Daily Slack updates and short Loom demos keep non-technical stakeholders informed throughout development.
Need a developer who can own mobile apps, admin dashboards, backend architecture, payments, AI integrations, and production deployment from start to finish? Let's talk!
— Mutiu
$25/hr
100%
Job Success
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Salman K.
has worked
.
🚀 𝗕𝘂𝗶𝗹𝗱 𝘆𝗼𝘂𝗿 𝗠𝗩𝗣 𝗶𝗻 𝗷𝘂𝘀𝘁 𝟴𝟬 𝗵𝗼𝘂𝗿𝘀. 𝗜𝗱𝗲𝗮 𝘁𝗼 𝗔𝗽𝗽 𝗦𝘁𝗼𝗿𝗲, 𝘄𝗶𝘁𝗵𝗼𝘂𝘁 𝘁𝗵𝗲 𝗮𝗴𝗲𝗻𝗰𝘆 𝘁𝗶𝗺𝗲𝗹𝗶𝗻𝗲.
⭐ Top Rated | 100% Job Success | 1,800+ Hours on Upwork
⭐ 50+ Mobile Apps Shipped | React Native, iOS & Android | 9+ Years
⭐ AI App Specialist | Chatbots, OpenAI API & AI-Powered Features
⭐ Fintech, HealthTech, EdTech & On-Demand | Enterprise to Startup
I build React Native mobile apps that make it to launch. Startups come to me with an idea or a half-finished build, and leave with a live product on the App Store and Play Store: designed, developed, integrated, and shipped.
My work includes fintech apps handling multi-currency payments and virtual cards (Volopa Business), VR-based enterprise training with rewards (built for Aramco), AI photo and video editing (Famo AI), booking and marketplace platforms (Boka, Dooz), and AI career and chatbot apps delivered five-star on Upwork.
What I build:
• MVPs in 80 hours: scoped, built and launched fast without cutting corners
• AI-powered mobile apps: chatbots, OpenAI API features, image and video AI
• Full-stack builds: React Native (Expo and bare), TypeScript, Node.js APIs, Firebase
• Payments and integrations: Stripe, in-app purchases, maps, push notifications
• Rescues and migrations: taking over stalled builds, Ionic to React Native
How I work: senior-level ownership, not just coding. Clients repeatedly mention that I suggest features, flag problems early, and communicate clearly (see my reviews). You get honest timelines, weekly builds you can install, and a partner who treats your product like his own.
Have an idea or a stuck project?
𝘚𝘦𝘯𝘥 𝘮𝘦 𝘢 𝘮𝘦𝘴𝘴𝘢𝘨𝘦 𝘢𝘯𝘥 𝘐'𝘭𝘭 𝘵𝘦𝘭𝘭 𝘺𝘰𝘶 𝘸𝘩𝘢𝘵 𝘪𝘵 𝘵𝘢𝘬𝘦𝘴 𝘵𝘰 𝘴𝘩𝘪𝘱 𝘪𝘵.
React Native | Expo | Mobile App Development | iOS | Android | TypeScript | Node.js | Firebase | AI App Development | Chatbot | OpenAI API | Payment Gateway Integration | In-App Purchases | MVP Development | Flutter | App Store Deployment
$15/hr
89%
Job Success
$6K+ earned
Available now
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A 𝐫𝐞𝐬𝐮𝐥𝐭𝐬-𝐝𝐫𝐢𝐯𝐞𝐧 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with 𝟏𝟎+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 building 𝐧𝐚𝐭𝐢𝐯𝐞 𝐢𝐎𝐒 & 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 and 𝐜𝐫𝐨𝐬𝐬-𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐚𝐩𝐩𝐬 𝐮𝐬𝐢𝐧𝐠 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐚𝐧𝐝 𝐅𝐥𝐮𝐭𝐭𝐞𝐫.
I specialize in creating 𝐡𝐢𝐠𝐡-𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞, 𝐮𝐬𝐞𝐫-𝐟𝐫𝐢𝐞𝐧𝐝𝐥𝐲, and 𝐠𝐫𝐨𝐰𝐭𝐡-𝐫𝐞𝐚𝐝𝐲 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐬 that solve real business problems. I work with 𝐬𝐭𝐚𝐫𝐭𝐮𝐩𝐬 𝐚𝐧𝐝 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬𝐞𝐬 to transform ideas into 𝐩𝐨𝐥𝐢𝐬𝐡𝐞𝐝 𝐝𝐢𝐠𝐢𝐭𝐚𝐥 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬 that are 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞, 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, and 𝐫𝐞𝐚𝐝𝐲 𝐟𝐨𝐫 𝐫𝐞𝐚𝐥-𝐰𝐨𝐫𝐥𝐝 𝐮𝐬𝐞.
Furthermore, I have strong expertise across the 𝐞𝐧𝐭𝐢𝐫𝐞 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐥𝐢𝐟𝐞𝐜𝐲𝐜𝐥𝐞 i.e. from 𝐢𝐝𝐞𝐚 𝐯𝐚𝐥𝐢𝐝𝐚𝐭𝐢𝐨𝐧 and 𝐔𝐈/𝐔𝐗 𝐩𝐥𝐚𝐧𝐧𝐢𝐧𝐠 to 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, 𝐭𝐞𝐬𝐭𝐢𝐧𝐠, 𝐝𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭, and 𝐥𝐨𝐧𝐠-𝐭𝐞𝐫𝐦 𝐬𝐮𝐩𝐩𝐨𝐫𝐭.
✅ 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐈 𝐏𝐫𝐨𝐯𝐢𝐝𝐞 :
◆ 𝐍𝐚𝐭𝐢𝐯𝐞 𝐢𝐎𝐒 & 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 + 𝐂𝐫𝐨𝐬𝐬-𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 (𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞, 𝐅𝐥𝐮𝐭𝐭𝐞𝐫)
◆ 𝐌𝐕𝐏 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, 𝐫𝐚𝐩𝐢𝐝 𝐩𝐫𝐨𝐭𝐨𝐭𝐲𝐩𝐢𝐧𝐠 & 𝐔𝐈/𝐔𝐗 𝐝𝐞𝐬𝐢𝐠𝐧
◆ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐭𝐡𝐢𝐫𝐝-𝐩𝐚𝐫𝐭𝐲 𝐀𝐏𝐈 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧
◆ 𝐀𝐈 𝐟𝐞𝐚𝐭𝐮𝐫𝐞𝐬, 𝐫𝐞𝐚𝐥-𝐭𝐢𝐦𝐞 𝐜𝐡𝐚𝐭, 𝐧𝐨𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 & 𝐥𝐢𝐯𝐞 𝐬𝐲𝐧𝐜
◆ 𝐀𝐮𝐭𝐡𝐞𝐧𝐭𝐢𝐜𝐚𝐭𝐢𝐨𝐧, 𝐩𝐚𝐲𝐦𝐞𝐧𝐭𝐬, 𝐬𝐮𝐛𝐬𝐜𝐫𝐢𝐩𝐭𝐢𝐨𝐧𝐬 & 𝐬𝐞𝐜𝐮𝐫𝐢𝐭𝐲
◆ 𝐋𝐨𝐜𝐚𝐭𝐢𝐨𝐧-𝐛𝐚𝐬𝐞𝐝 𝐟𝐞𝐚𝐭𝐮𝐫𝐞𝐬 (𝐦𝐚𝐩𝐬, 𝐆𝐏𝐒 𝐭𝐫𝐚𝐜𝐤𝐢𝐧𝐠)
◆ 𝐓𝐞𝐬𝐭𝐢𝐧𝐠, 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐨𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 & 𝐝𝐞𝐛𝐮𝐠𝐠𝐢𝐧𝐠
◆ 𝐀𝐩𝐩 𝐒𝐭𝐨𝐫𝐞 / 𝐆𝐨𝐨𝐠𝐥𝐞 𝐏𝐥𝐚𝐲 𝐝𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 & 𝐨𝐧𝐠𝐨𝐢𝐧𝐠 𝐬𝐮𝐩𝐩𝐨𝐫𝐭
✅ 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐂𝐚𝐭𝐞𝐠𝐨𝐫𝐢𝐞𝐬 𝐈 𝐇𝐚𝐯𝐞 𝐁𝐮𝐢𝐥𝐭 :
◆ 𝐎𝐧-𝐝𝐞𝐦𝐚𝐧𝐝 𝐬𝐞𝐫𝐯𝐢𝐜𝐞 𝐚𝐩𝐩𝐬 (booking, ride-sharing, home services)
◆ 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 & 𝐦𝐚𝐫𝐤𝐞𝐭𝐩𝐥𝐚𝐜𝐞 𝐚𝐩𝐩𝐬
◆ 𝐇𝐞𝐚𝐥𝐭𝐡, 𝐟𝐢𝐭𝐧𝐞𝐬𝐬 & 𝐰𝐞𝐥𝐥𝐧𝐞𝐬𝐬 𝐚𝐩𝐩𝐬
◆ 𝐅𝐢𝐧𝐭𝐞𝐜𝐡 & 𝐩𝐚𝐲𝐦𝐞𝐧𝐭 𝐚𝐩𝐩𝐬
◆ 𝐑𝐞𝐚𝐥 𝐞𝐬𝐭𝐚𝐭𝐞 & 𝐩𝐫𝐨𝐩𝐞𝐫𝐭𝐲 𝐦𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 𝐚𝐩𝐩𝐬
◆ 𝐒𝐨𝐜𝐢𝐚𝐥 𝐧𝐞𝐭𝐰𝐨𝐫𝐤𝐢𝐧𝐠 & 𝐦𝐞𝐬𝐬𝐚𝐠𝐢𝐧𝐠 𝐚𝐩𝐩𝐬
◆ 𝐋𝐨𝐠𝐢𝐬𝐭𝐢𝐜𝐬, 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐲 & 𝐭𝐫𝐚𝐜𝐤𝐢𝐧𝐠 𝐚𝐩𝐩𝐬
◆ 𝐄𝐝𝐓𝐞𝐜𝐡 & 𝐞-𝐥𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬
◆ 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐚𝐩𝐩𝐬 (chatbots, assistants, recommendation systems)
◆ 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐯𝐢𝐭𝐲 & 𝐒𝐚𝐚𝐒 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐬
✅ 𝐂𝐨𝐫𝐞 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 & 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 𝐈 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 :
◆ 𝐌𝐨𝐛𝐢𝐥𝐞 ➜ Swift, Kotlin, Flutter, React Native
◆ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 ➜ TypeScript, JavaScript
◆ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 ➜ Node.js, Express.js, Firebase
◆ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 ➜ PostgreSQL, MongoDB
◆ 𝐀𝐈 ➜ OpenAI, Google ML Kit
◆ 𝐓𝐨𝐨𝐥𝐬 ➜ Xcode, Android Studio, GitHub Copilot, Expo, FlutterFlow
◆ 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 & 𝐂𝐈/𝐂𝐃 ➜ Jest, Fastlane, GitHub Actions
◆ 𝐃𝐞𝐬𝐢𝐠𝐧 ➜ Figma
If you’re looking to 𝐛𝐮𝐢𝐥𝐝 𝐚 𝐧𝐞𝐰 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩 or 𝐢𝐦𝐩𝐫𝐨𝐯𝐞 𝐚𝐧 𝐞𝐱𝐢𝐬𝐭𝐢𝐧𝐠 𝐨𝐧𝐞, let’s connect.
𝐂𝐥𝐞𝐚𝐫 𝐜𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧, 𝐩𝐫𝐚𝐜𝐭𝐢𝐜𝐚𝐥 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬, and a focus on delivering 𝐡𝐢𝐠𝐡-𝐪𝐮𝐚𝐥𝐢𝐭𝐲 𝐫𝐞𝐬𝐮𝐥𝐭𝐬 are always a priority.
Associated with
ITX Web Solutions
$20K+
earned
$35/hr
100%
Job Success
$400K+ earned
Available now
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Nikhil S.
has worked
.
I build complete digital ecosystems that connect field workers, office teams, customers and administrators through mobile apps, web portals and scalable backend systems.
I do not build isolated apps that create more manual work. I build connected platforms where information flows between mobile devices, internal dashboards, customers and company management.
Recent work:
• A home inspection app I designed, built and launched on the Apple App Store
• A field inspection platform for a US inspection services company
• A payroll platform serving 300+ employees that I have maintained and extended for 5+ years
Whether you need an MVP, an internal business tool or a complete field-operations platform, I plan, design, develop and launch systems built for long-term growth.
🚀 What I Build
✔ Field-Worker and Operations Platforms
• Mobile tools for technicians, inspectors and on-site teams
• Work orders, job assignments and scheduling
• Digital checklists, forms and inspections
• Photo, video, signature and document capture
• GPS logs, time tracking and activity records
• Offline access with automatic data synchronization
• Office review and approval workflows
• Instant PDF and custom report generation
✔ Inspection, Safety and Compliance Systems
• Construction and property inspections
• Safety audits and compliance tracking
• Deficiency and corrective-action management
• Equipment and facility inspections
• Photo-based reporting and documentation
• Management dashboards and analytics
✔ Internal Company Tools
• Employee and operations management systems
• Internal dashboards and admin portals
• Approval workflows and role-based access
• Document, task and data-management platforms
• Reporting and business-performance dashboards
✔ SaaS, Marketplace and On-Demand Platforms
• MVPs built for market validation and investor readiness
• Subscription products and multi-tenant platforms
• Service marketplaces, booking and on-demand applications
• Customer, vendor and administrator portals
• Payments, subscriptions and commission systems
🤖 AI Automation and Intelligent Features
• AI-generated reports and summaries
• Document and text extraction
• Voice-to-text and automated note generation
• AI chatbots and conversational interfaces
• Automated data classification and intelligent search
• Workflow automation using OpenAI, Gemini and Whisper
🛠 Technology
Mobile: Flutter, React Native, Swift and SwiftUI, Kotlin and Jetpack Compose
Web and Backend: React, Next.js, Node.js, Express, Firebase, MongoDB, PostgreSQL, AWS, Google Cloud
Platform: Offline-first architecture, real-time sync, secure authentication and role permissions, push notifications, payment and subscription integrations, third-party APIs
🇺🇸 Working With US and Canadian Teams
I work mainly with US and Canadian companies and keep daily overlap with US Eastern hours for standups, demos and reviews. Questions get answered the same business day, not the next morning.
⚡ Why Clients Choose Me
• 100+ mobile, web and software products delivered
• A full team behind me: product planning, UI/UX design, mobile, web, backend, QA, cloud deployment and store submission
• Clear communication, realistic timelines and regular working demos
• Architecture designed to avoid expensive rebuilds
• Long-term maintenance and post-launch support
Top Rated Plus | Top 3% on Upwork | $400K+ earned | 8,600+ hours | 136 jobs | 10+ years of product development
🚀 Let's Build
Send me your requirements, your current process or an existing design. I will come back with a clear technical approach, a realistic estimate and the questions worth answering before you spend money.
Associated with
Nap Works Private Limited
$200K+
earned
$17/hr
100%
Job Success
$1K+ earned
Available now
Offers consultations
Start of list.
End of list.
Malik U.
has worked
.
FlutterFlow & Flutter Developer with 4+ years of experience building production-ready iOS and Android mobile apps. I specialize in FlutterFlow, Flutter/Dart, Firebase, Supabase, REST API integrations, custom actions/functions, and scalable app development.
I help startups and businesses build, improve, and launch reliable mobile applications from idea to App Store and Google Play.
My expertise includes:
FlutterFlow App Development
Flutter & Dart Development
Firebase Authentication, Firestore, Storage & Cloud Functions
Supabase / PostgreSQL / Database Integration
REST API & Third-Party API Integration
FlutterFlow Custom Actions & Custom Functions
Stripe & RevenueCat Subscriptions / Payments
In-App Purchases & Paywalls
Push Notifications / Firebase Cloud Messaging
Google Maps & Location-Based Features
AI / OpenAI API Integration
BuildShip Backend Workflows
Responsive UI & Figma-to-FlutterFlow
Bug Fixing & Performance Optimization
Apple App Store & Google Play Store Deployment
I can also take over an existing Flutter or FlutterFlow project, fix bugs, improve performance, integrate APIs, complete unfinished features, or prepare the app for production release.
If you need a FlutterFlow or Flutter developer who can handle both frontend and backend integrations and deliver a stable iOS/Android application, I’m ready to help.
$20/hr
100%
Job Success
$10K+ earned
Available now
Start of list.
End of list.
Shaiq P.
has worked
.
I help Startups,SaaS, fitness, education, finance, and content businesses turn ideas into AI Flutter mobile apps that improve user engagement, automate experiences, and create scalable subscription products.
From AI fitness coaches and learning apps to AI content generation and personal finance products, I build mobile applications that solve real user problems not just screens and features.
My work combines Flutter, AI/LLM integrations, Firebase, APIs, iOS, Android, subscriptions, payments, and scalable backend systems to turn an idea into a reliable, production-ready mobile product.
What I can build for you:
• AI Flutter mobile applications for iOS and Android
• AI chatbots, AI assistants, and LLM features
• AI image and video generation applications
• AI fitness, health, coaching, and personalization apps
• AI education and learning applications
• Finance, budgeting, productivity, and subscription-based apps
• Flutter MVPs and complete mobile products from concept to launch
• Firebase-powered mobile applications and backend systems
• REST API and third-party API integrations
• User authentication, social login, and account management
• In-app purchases and subscription systems
• Payment gateway integration
• Push notifications and real-time functionality
• Camera, location, HealthKit, and native mobile integrations
• Existing Flutter app improvements, debugging, optimization, and maintenance
AI + Flutter Mobile App Development
I've built multiple AI mobile applications using Flutter, React Native including AI image and video generation, AI learning and math-solving applications, AI fitness and coaching products, and mobile apps with LLM-powered features.
My AI mobile development work includes AI API integration, LLMs, OCR, AI assistants, personalized experiences, AI coaching, Firebase, subscriptions, and third-party services.
I focus on integrating AI into the actual product experience, not simply connecting an AI API. The goal is to make the AI feature useful, reliable, fast, and easy for users to interact with.
Flutter + Firebase Development
I use Flutter and Firebase to build scalable mobile applications with authentication, Firestore, realtime data, cloud services, file storage, notifications, and backend integrations.
When a project requires platform-specific functionality, I can also work with native iOS and Android capabilities and integrate services such as HealthKit, device features, payments, notifications, and other platform APIs.
I also work with React Native when you need development or improvements within an existing React Native application.
From Idea to Production
Whether you're:
• launching a new AI mobile app
• building a Flutter MVP
• adding AI features to an existing application
• developing a Firebase-powered mobile product
• improving an existing Flutter application
• adding subscriptions or payments
• integrating APIs, AI services, or third-party platforms
• preparing an iOS or Android app for production
I can help take the product from idea and requirements through development, integration, testing, optimization, and production release.
I focus on solving the business problem first, then building the right technical solution around it with clean architecture, maintainable code, reliable integrations, and a mobile experience designed for real users.
If you have a mobile product idea or an existing app that needs Flutter development, AI integration, Firebase, or iOS/Android development, send me the details and let's discuss what we can build.
Highlighted Skills:
Flutter Mobile App Development | AI Mobile App Developement | Mobile App Development | Mobile App Developer | Flutter App | Flutter Developer | Flutter Firebase | Flutter Dart | Flutter App Developer | App Developer | Mobile Developer | React Native Mobile App Development | Mobile App Builder | Flutter Laravel | AI App Developer | AI App | Full Stack App Developer | Mobile App Development Consultation | iOS App Developer | Android App Developer | Hybrid App Development | Android | iOS | Cross-Platform Mobile Developer | Artificial Intelligence App Development | Machine Learning App Integration | Firebase App Developer | API Integration (Flutter) | Hybrid App Developer | AI Solutions for Mobile Apps | Senior Mobile App Developer | Dating App Development | Education App Developer | Saloon Booking Mobile App Development | Food Delivery Mobile App Development | Chat Mobile App Developer | Chat Buddy Mobile App Development | Node.js | Android
$35/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
Start of list.
End of list.
If you are looking for a Flutter App Developer who can build scalable, high-performance Mobile App products from idea to production — you're in the right place.
I am a Flutter App Developer with 5+ years of commercial experience delivering cross-platform Mobile App Development solutions using Flutter and Firebase for Android and iOS.
Over the last 5+ years, I have successfully delivered:
🏆 80+ Flutter projects
📱 100+ Android & iOS releases
🚀 50+ production Mobile Apps
👨💻 1M+ end users across delivered applications
⚙️ 1,000+ implemented features
🌍 Products across 20+ business domains
⭐️ 100+ successful production deployments
My core expertise as a Flutter App Developer is building scalable Mobile App Development solutions with Flutter, Firebase, modern architecture, and clean, maintainable code.
💼 What I do as a Flutter App Developer
As a Flutter App Developer, I build complete Mobile App Development solutions from MVP to enterprise-scale products.
During the last 5+ years, I have participated in 80+ Flutter projects, delivered 100+ Android & iOS releases, and helped launch products used by 1M+ users.
Every project includes:
✔️ Cross-platform Mobile App Development using Flutter
✔️ Firebase backend integration
✔️ Android & iOS development
✔️ MVP implementation
✔️ Clean Architecture
✔️ BLoC / GetX / Riverpod
✔️ REST API & GraphQL integration
✔️ Real-time features
✔️ CI/CD automation
✔️ App Store & Google Play deployment
My goal is to deliver Flutter applications that are scalable, maintainable, and ready for long-term growth.
🧠 Flutter Expertise
As a Flutter App Developer, I have extensive experience building production-ready Mobile App Development solutions.
My expertise includes:
📱 Flutter UI Development
🔥 Firebase Authentication
☁️ Firebase Firestore
📩 Firebase Cloud Messaging
⚙️ Clean Architecture
🧩 SOLID Principles
🔄 BLoC
🚀 GetX
🌊 Riverpod
🌐 REST API
📡 GraphQL
💾 Local Storage
🔔 Push Notifications
⚡️ Performance Optimization
Across 80+ Flutter projects, I have built solutions focused on speed, scalability, and excellent user experience for Android and iOS.
📱 Mobile App Development Experience
As a Flutter App Developer, I have developed Mobile App Development products across multiple industries, including:
✅ AI Applications
✅ Healthcare
✅ FinTech
✅ SportsTech
✅ Logistics
✅ eCommerce
✅ Marketplaces
✅ Education
✅ Social Networks
✅ Travel
✅ Wellness
✅ Business Applications
Across these domains, I have contributed to 50+ MVP launches, 100+ releases, and applications serving 1M+ users.
📈 Results
Through professional Flutter development and Mobile App Development, I have helped clients:
🚀 Deliver production-ready Mobile Apps
📱 Successfully publish to App Store & Google Play
⚙️ Build scalable Flutter architecture
🔥 Integrate Firebase services
⚡️ Implement real-time systems
📈 Improve application performance
🎯 Reduce technical debt
🌍 Scale applications for thousands of daily users
My work has contributed to 80+ Flutter projects, 100+ releases, and 1M+ users worldwide.
## 🛠 Flutter Tech Stack
I work daily with:
• Flutter
• Dart
• Firebase
• FlutterFlow
• Supabase
• REST API
• GraphQL
• SQLite
• Hive
• BLoC
• Riverpod
• GetX
• WebSockets
• Google Maps
• Stripe
• In-App Purchases
• Push Notifications
• Android
• iOS
• CI/CD
• Git
🤝 Why Work With Me?
Clients choose me because I combine:
🏆 5+ years as a Flutter App Developer
🚀 80+ completed Flutter projects
📱 100+ Android & iOS releases
👨💻 1M+ users across delivered applications
⚙️ 1,000+ delivered features
🌍 Experience across 20+ industries
💬 Clear communication
⚡️ Fast delivery
📈 Scalable Mobile App Development architecture
🚀 Let's Build Your Flutter App
Whether you're planning an MVP, startup, AI platform, Marketplace, Healthcare solution, FinTech product, SportsTech platform, or any other Mobile App Development project, I can help build a high-quality Flutter application for Android and iOS.
Let's build your next Flutter Mobile App together.
Associated with
InAppo
$700K+
earned
$30/hr
100%
Job Success
$40K+ earned
Start of list.
End of list.
Usama T.
has worked
.
React Native Developer with 6+ years shipping iOS and Android apps that reach the stores and stay there. 100% Job Success | 3,548 hours | $40K+ earned on Upwork.
Send me your idea, Figma file, crash log or half-finished repo and I will tell you honestly what it needs before you pay me anything.
FACTS ABOUT ME
- 100% Job Success Score across every contract I have completed on Upwork
- 3,548 hours logged, $40K+ earned, 11 contracts, zero disputes
- Two of my longest React Native contracts ran 1,356 hours and 890 hours - clients keep me for years, not weeks
- Apps I built are live right now on the App Store and Google Play
- BEng Software Engineering, University of Gujrat
- Average response time under 4 hours
WHAT I BUILD
React Native Development - one codebase, iOS and Android, native modules when the job actually needs them
React Native Expo - Expo managed and bare workflow, EAS Build, EAS Submit, over-the-air updates
Firebase - Auth, Firestore, Cloud Functions, Push Notifications, Crashlytics, Analytics
Mobile App Development - App Store and Google Play submission, TestFlight, release signing, store rejections fixed
AI Integration - OpenAI and Claude APIs, AI chat, AI features inside mobile apps
Backend - Node.js, Express, REST and GraphQL APIs, MongoDB, MySQL, WebSockets, AWS EC2
Native - Swift, SwiftUI, Kotlin, Jetpack Compose
Web - React, Next.js, TypeScript for the dashboard behind your app
WHERE I AM MOST USEFUL
- Your React Native app crashes, or crashes only in the release build
- Another developer started your app and disappeared halfway
- Apple or Google rejected your submission and you do not know why
- It works on Android and falls apart on iOS, or the other way round
- Slow lists, heavy re-renders, huge bundle size, cold start takes forever
- Expo to bare workflow, or an upgrade across several React Native versions
- Push notifications, deep links, in-app purchases, offline sync, real-time chat
- You need the app AND the backend AND the admin dashboard from one person
INDUSTRIES I HAVE BUILT FOR
Healthcare and Telemedicine App Development
Mental Health and Therapy App Development
Fitness, Health and Wellness App Development
Wearables, HRV and Health Tracking Apps
Food Delivery and Marketplace App Development
Social and Community App Development
Chat, Messaging and Real-Time App Development
Admin Dashboards, CRM and Analytics Platforms
Travel and Tourism Booking Apps
E-Commerce and On-Demand Apps
WHAT CLIENTS SAY
"I had the pleasure of working with Usama on my mobile app development project using React Native, and I can confidently say that their skills and expertise in the field..." - React Native, 1,356 hours
"Excellent developer! He did everything I asked and went above and beyond. Anything he didn't know, he quickly researched and found a solution immediately." - React Native Mobile Application
"Usama has a very deep level understanding of so much (NodeJS, MongoDB, Mongoose, Javascript, caching). I learned a lot myself working with him." - Node.js Developer
"Usama is great resource, and very professional. The whole team enjoyed working with him. Very knowledgeable and available anytime." - React / Node.js Developer
HOW I WORK
Step 1 - Free review. Send the repo, the crash, or a paragraph. I tell you what is actually wrong and whether I am the right person.
Step 2 - Plan. Architecture and milestones agreed before I write a line of code.
Step 3 - Build. Updates you never have to chase.
Step 4 - Test. Real devices, multiple OS versions, edge cases.
Step 5 - Launch and stay. App Store and Play Store submission handled, and I am still reachable afterwards.
I use Claude Code, Cursor and GitHub Copilot to move faster, but every line ships reviewed. Speed without the sloppiness.
Message me with a short summary of your project and I will reply within 24 hours.
TOP SKILLS
React Native | React Native Developer | React Native App Development | React Native Expo | Expo | Mobile App Development | Mobile App Developer | iOS App Development | iOS Developer | Android App Development | Android Developer | Cross-Platform App Development | Firebase | Mobile App Bug Fix | App Store Submission | Google Play Deployment | AI App Development | AI Integration | Node.js | Express | MongoDB | REST API | GraphQL | TypeScript | JavaScript | React | Redux | Healthcare App Development | Fitness App Development | MVP Development
$28/hr
100%
Job Success
$60K+ earned
Offers consultations
Start of list.
End of list.
I’m a Senior Mobile App Developer with 12+ years of experience in Android Kotlin/Java and Flutter. I build production-ready mobile apps with clean architecture, strong performance, and long-term maintainability.
My main expertise is Flutter app development, native Android Kotlin development, Firebase, REST APIs, GraphQL, AWS integration, background processing, offline support, push notifications, payments, subscriptions, and scalable app architecture.
I also have strong experience in AI-powered mobile apps, including TensorFlow Lite, YOLO, SSD object detection, pose models, real-time camera processing, RTSP/IP camera streams, image processing, OpenCV, native C/C++, JNI/NDK, and Flutter platform channels.
I have worked on apps across healthcare, construction, inventory, social platforms, AI camera systems, warehouse tools, and enterprise mobile products. My recent work includes AI camera apps, inventory/counting apps, Firebase-based transaction apps, voice-enabled medical workflows, and Flutter apps with modular clean architecture.
I can help with building a Flutter or Android app from scratch, improving an existing app, fixing performance problems, reducing crashes/ANRs, integrating APIs, adding Firebase/AWS backend workflows, implementing AI/ML features, and handling Flutter-to-native Android integrations.
I focus on practical engineering: clean code, clear communication, proper error handling, performance logs, memory optimization, and architecture that your team can maintain after launch.
If you need a mobile developer who can handle both product delivery and deep technical implementation, I’d be happy to discuss your project.