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$20/hr
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𝗜 𝘀𝗵𝗶𝗽 𝗮𝗽𝗽𝘀 𝘁𝗵𝗮𝘁 𝗽𝗮𝘀𝘀 𝘀𝘁𝗼𝗿𝗲 𝗿𝗲𝘃𝗶𝗲𝘄 𝗮𝗻𝗱 𝘀𝗰𝗮𝗹𝗲 𝘁𝗼 𝗮 𝗺𝗶𝗹𝗹𝗶𝗼𝗻 𝘂𝘀𝗲𝗿𝘀, 𝗻𝗼𝘁 𝗼𝗻𝗰𝗲, 𝗯𝘂𝘁 𝗺𝘂𝗹𝘁𝗶𝗽𝗹𝗲 𝘁𝗶𝗺𝗲𝘀.
Building something like that? Send me a message for a complimentary roadmap.
✦ Top Rated Mobile App Developer, 19 jobs, every single one rated 5/5 ⭐
✦ 200K+ downloads and $1M+ in revenue generated across client products
✦ 6+ Year experience as a Senior Mobile App Developer
✦ I work as your technical co-founder - not just a mobile app developer writing code
𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞?
✓ Resourceful, efficient, and client-focused approach.
✓ Complimentary consultation to understand your project requirements.
✓ Actionable insights and recommendations, even if we don't end up working together.
⚙️𝗪𝗵𝗮𝘁'𝘀 𝗠𝘆 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲:
✔ Cross-Platform Mobile App Development as React Native & Flutter
✔ iOS Development with Swift for iPhone and iPad
✔ AI Mobile App Development & integrations (Claude/Chat GPT)
✔ Backend Development with Node.js, Python (Fast API & Django), AWS, Firebase, and Supabase
✔ Database: MongoDB, PostgreSQL,
✔ Proficient in API Integration with REST APIs and GraphQL for Mobile apps
✔ Tools & CI/CD: Git, GitHub, Jira, Trello
✔ Payments: Stripe, RevenueCat, In-App Purchases in your Flutter App
✔ AI app development with Claude Code And Cursor
✔ Maps & Location: Google Maps, Mapbox, Real-time GPS, Location services
𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽𝘀 𝗜'𝘃𝗲 𝗦𝗵𝗶𝗽𝗽𝗲𝗱
✅ HIPAA Complaint Mobile app iOS & Android
✅ Ride Booking Mobile App (like Uber)
✅ Food delivery Flutter App for iOS & Android
✅ Market Place Mobile Apps (iOS & Android)
✅ Social Media Mobile app
✅ Fintech Mobile App (iOS & Android)
✅ AI Fitness mobile app ( like CalAI )
✅ Sports mobile app for iOS & Android
✅ E-commerce Mobile App Development with Flutter
✅ Language Learning Mobile App (Like Duolingo)
✅ Event management Mobile App Development (iOS & Android)
✅ Meal Planning Mobile App (iOS and Android)
✅ Mobile App Developer for MVP App Development
✅ AI-Powered Mobile App Development with Flutter (iOS Android)
✅ Service Booking Mobile App (Home/HVAC)
✅ Flutter Developer for Learning Management
✅ Inventory Management Mobile App for iOS & Android
✅ Meditation & Wellness Flutter App with iOS & Android
✅ Doctor Appointment Booking Mobile App
✅ Venue Booking Mobile App (iOS and Android)
✅ Task Management Mobile App
𝐊𝐞𝐲 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐬 𝐈'𝐯𝐞 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝
• Face Recognition Integration
• Real-time Chat Systems (Socket io, PubNub)
• Image Cropping & Processing
• Bluetooth Device Connectivity
• Push Notifications (Firebase, AWS SNS, SMS)
• Maps Integration (Google Maps, Mapbox)
• Social Login Integration (Google, Apple, Facebook, Twitter, Instagram, LinkedIn)
• Video Calling SDK Integration
• Ad Integration (AdMob, Facebook Ads)
• Audio Recording Features
• QR & Barcode Scanners
• Payment Gateway Integration (Stripe, PayPal, Apple Pay, Razorpay)
➤ 𝗠𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲 & 𝗦𝘂𝗽𝗽𝗼𝗿𝘁: Includes up to 2 months of complimentary post-launch maintenance and support for complete project builds.
𝗥𝗘𝗔𝗗𝗬 𝗧𝗢 𝗕𝗨𝗜𝗟𝗗 𝗬𝗢𝗨𝗥 𝗔𝗣𝗣?
📩 Send me what you're building and your target launch window. I'll reply within 1–4 hours with a rough timeline and cost range.
Regards,
Mashood H
𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Flutter Developer | Expert Mobile App Developer | Full Stack Mobile App Developer | Expert Flutter Developer | Senior Flutter Developer | Mobile Developer | iOS Developer | Android App Developer | Mobile App Development | Cross platform development | AI App Developer | AI App | Mobile Developer | App Developer | Mobile App Development Consultation | App Developer | AI App Developer | iOS App Development | iOS App | Android App Development | Mobile App Development | User Authentication | In App Purchases | API Integration | Hybrid App development
Mashood H.
has worked
.
$40/hr
100%
Job Success
$300K+ earned
Available now
Offers consultations
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Full stack mobile app developer with 15+ years of experience in Mobile App Development, specializing in Flutter, React Native, React, IOS, Swift, Android, Python, and Java.
I have successfully delivered 120+ mobile applications in different roles as flutter app developer, flutter full stack developer, flutter flow, ai mobile app developer, mobile app design, mobile ui ux designer, ios developer, android developer, react native developer, mobile game developer achieving a 5-star rating on Upwork and helping clients scale their businesses with high-performance solutions.
🚀 Flutter Mobile App Developer | Mobile UI/UX Designer | Mobile Game Developer | Mobile Web Developer for Mobile app development project.
Expert in Flutter mobile app development, delivering 30+ high-performance apps with pixel-perfect UI and smooth animations. Skilled in clean architecture and comprehensive testing for robust solutions. Experienced Mobile App Developer.
🔹 Applied game mechanics for engaging experiences in mobile development where I was a Mobile Game Developer.
🔹 Integrated real-time features, secure authentication, and cloud functions as Flutter Firebase Developer.
🔹 Built seamless API integrations and data synchronization in mobile development in Flutter mobile app development as a Flutter Laravel Specialist.
🚀 iOS app developer | Mobile UI/UX Designer | Mobile Game Developer | Mobile Web Developer in mobile app development:
Developed and optimized 40+ iOS apps using Swift. Implemented complex features as iOS app developer, maintaining clean architecture and best practices. Leveraged extensive experience as iOS developer Swift to create intuitive user experiences and solve challenging technical problems. Collaborated with cross-functional teams as Swift iOS developer, utilizing Kotlin Swift expertise to deliver high-quality applications on time and exceed client expectations on iOS Swift smartphone platforms.
🚀 Android Developer | Mobile UI/UX Designer | Mobile Game Developer | Mobile Web Developer in mobile app development:
Built 30+ Android apps with adaptive UI, material design, and battery-friendly performance. Expert in Android Kotlin developer, leveraging Kotlin Swift and Kotlin Multiplatform for cross-platform solutions. Optimized security as Android reverse engineer and streamlined releases as Android app publisher, enhancing engagement and update efficiency.
🚀React Native Developer | Mobile UI/UX Designer | Mobile Game Developer | Mobile Web Developer in mobile app development:
Built 20+ cross-platform apps with responsive UI and seamless sync. Expert in React Native mobile, React Native Expo, and React Native Firebase for real-time features. Optimized communication with React Native WebRTC. Crafted interactive experiences as React JS and Front End React specialist. Developed hybrid solutions as Java React expert, maximizing code reuse.
📱 Performance & Scalability: Built apps supporting 1M+ users, integrating real-time updates, gamification, and video streaming.
💰 Business Impact: Helped startups and enterprises generate $10M+ in revenue through well-optimized and engaging mobile applications.
iOS App Development Case Study 📱
Developed a high-performance iOS app using iOS Swift that achieved 5 star rating and featured status in the App Store. Implemented Flutter iOS compatibility for future cross-platform expansion while maintaining native performance and security. Supported iOS app marketing efforts with analytics implementation and App Store optimization, resulting in 35% higher user retention than industry average.
I am currently not accepting WordPress projects as I'm focusing exclusively on mobile app development.
Professional Achievements
🚀 Rewarded as 🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 🏆
🚀 4154 mobile app development hours on Upwork and still counting
🚀 100% Job Success in mobile app development (Client Satisfaction Ratio)
🚀 54+ mobile app development jobs completed successfully
✅ 98% of Clients Recommended working with me as with AI Mobile App Developer
✅ 80% Long-term Repeat Clients
✅ 15+ Years Of Experience in mobile app development, 6 years experience in Flutter mobile app development, 7 years experience in Swift and Kotlin, 4 years experience in React Native.
✅ High-Quality Work
✅ Cost-Effective AI Mobile App Developer
✅ Fluent English Verified
✅ 93% on-time delivery rate across all mobile app development milestones
Got an app idea that you think is ready to make a splash? Let's dive in and explore it together in a free intro call
Oleg R.
has worked
.
Associated with
Time2Launch Group OU
$100K+
earned
$18/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
Start of list.
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Full-Stack Developer specializing in Mobile App Development (iOS & Android), Flutter, React Native, AI Apps, Custom Software & Web Platforms, Web Apps, & SaaS Platforms Development. Recognized as a Top 3% Expert & Top Rated Plus professional on Upwork, with a proven track record of maintaining 100% Client Satisfaction.
Over the years, I have successfully delivered 200+ mobile apps and web solutions across diverse industries, helping startups, SMBs, and enterprises transform ideas into scalable digital products. My expertise spans Flutter, React Native, Swift, Node.js, Python, MEAN Stack, Angular, NestJS, Firebase, Vercel, & Supabase, enabling me to build high-performance applications from concept to deployment.
My portfolio includes mobile applications, AI-enabled platforms, SaaS products, MVPs, real-time messaging & streaming platforms, healthcare software, marketplaces, & on-demand service applications, all backed by secure & scalable architectures built with Node.js, Angular, NestJS, PHP, Firebase, & Python technologies.
A key testament to the quality & adoption of my work is that the applications and products I have developed have collectively achieved 2M+ downloads, demonstrating strong user engagement, reliability, and market success.
Whether you need a complete product build, team augmentation, platform modernization, or a scalable MVP, I bring the technical expertise, strategic thinking, & execution capability required to deliver results that drive business growth.
⭐ 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞
◉ Full Project Ownership from Idea to Launch
◉ Clean, Scalable & Production-Ready Code
◉ Transparent Communication & Fast Response Time
◉ Complete App Store & Google Play Deployment Support
◉ Rigorous Testing & Quality Assurance
◉ Reliable Post-Launch Free Support & Maintenance
◉ Secure, compliance-ready development (GDPR, HIPAA, age-restricted systems)
⭐ 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤𝐬
◉ Cross-Platform App Development: React Native | Flutter
◉ Native App Development: Swift | Objective-C | Kotlin | Java
◉ Frontend Development: React.js | Next.js | Angular | JavaScript | TypeScript | HTML5/CSS3 | Tailwind CSS | Bootstrap
◉ Backend Development: Node.js | Python | FastAPI | Django | Nest.js
◉ Databases: MongoDB | PostgreSQL | MySQL | Firebase | Supabase
◉ CMS & E-Commerce: WordPress | WooCommerce
◉ API Integrations: REST APIs | GraphQL | Google/Apple Maps | Twilio, Plivo, Elevenlabs, VAPI | Stripe, PayPal & Razorpay | Firebase | Fedex & UPS | Social Media & Auth APIs
◉ AI & Automation: OpenAI API | LangChain | AI Agents | Workflow Automation | RAG (Retrieval-Augmented Generation) | Vector Databases
◉ Cloud & DevOps: AWS | Docker | CI/CD | Vercel etc.
⭐ 𝐓𝐫𝐮𝐬𝐭𝐞𝐝 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐏𝐚𝐫𝐭𝐧𝐞𝐫 𝐀𝐜𝐫𝐨𝐬𝐬 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬
◉ Healthcare with HIPAA compliance
◉ Fitness & Wellness App
◉ FinTech Apps (TaxDome, Cash App, Venmo, Paypal, Stripe like App) - IRS Compliance
◉ Grubhub like App
◉ Restaurant App/DoorDash clone
◉ Uber like Apps
◉ Event Planning & Booking (Eventbrite like app)
◉ Bakery, Cafe & Restaurant Management
◉ Messaging & Communication Apps (WhatsApp Clone)
◉ Social Networking & Community Apps similar to Facebook & YouTube
◉ Dating Apps (Tinder like app)
◉ Real Estate & Property Management
◉ Salon Booking & Beauty Service
◉ E-Commerce Marketplace
◉ Education App
◉ Travel & Hospitality
◉ Logistics & Delivery Management
◉ Job Portals
◉ Sports & Entertainment Apps
Contact today for a Free Consultation & discover how we can help transform your ideas into impactful digital solutions!
Partner With Me For:
Mobile App Development | AI Mobile App Development | Custom Web Development | Marketplace App Development | MVP Development | Flutter Firebase | API Development and Integration | Mobile app development | Custom app development services | Hire mobile app developers | App design | EdTech app development | React Native Developer | Flutter Developer | Android App Developer | iOS App Developer | Cross-Platform App Developer | ElevenLabs like platform | Node.js Developer | Python Developer | Angular Developer | Hybrid App Developer | Healthcare App Development | Cal AI Clone | Web App Developer | SaaS App Developer | Software Developer | Healthcare App Developer | Fintech App Developer | eCommerce App developer | Real Estate App Developer | Dating App Developer | AI/ML Developer | Agentic AI Developer | eCommerce App Development | Web App Development | AI-Enable Platforms | PHP Developer | Sortly Inventory like App | MEAN Developer | PHP Developer | Wordpress Developer | iPad/iPhone App Developer | AI Agent Developer | Llama Developer | Custom Web Developer | MVP Developer | OpenAI/GPT Developer | Claude AI Developer | Fitness App | Automation | Application Tracking System | Fantasy App Developer | Family Culture AI App | Healthcare HIPAA | SaaS Apps | AI Developer | Python Developer | Node Developer | App Development | Supabase Developer | Frontend & API Integration Developer | AI
Arun R.
has worked
.
Associated with
IT Infonity
$25/hr
72%
Job Success
$10K+ earned
Offers consultations
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Helping startups, businesses, and growing brands build modern, scalable, and user-friendly mobile applications using React Native and Flutter.
👉🏻 I specialize in:
✔ Cross-Platform Mobile App Development
✔ React Native Development
✔ Flutter App Development
✔ Mobile UI/UX Design
✔ Figma to Mobile App
✔ Firebase Integration
✔ API Integration
✔ App Performance Optimization
✔ Android & iOS App Development
✔ MVP Development for Startups
I focus on building mobile apps that are not only visually polished but also fast, scalable, and easy for users to navigate.
From idea to deployment, I help clients transform concepts into high-quality mobile experiences with clean architecture, smooth performance, and modern UI/UX standards.
👉🏻 What you can expect while working with me:
• Clean and maintainable code
• Responsive communication
• Attention to UI/UX details
• Scalable app architecture
• On-time delivery
• Long-term support and collaboration
👉🏻 Whether you need:
• a Flutter app,
• a React Native application,
• a mobile UI redesign,
• MVP development,
• or complete Android/iOS app development,
I can help you build a modern mobile product focused on performance, usability, and business growth.
Let’s create an app your users will love.
Priyaranjan K.
has worked
.
Associated with
Immanent Solutions
$30K+
earned
$25/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
Start of list.
End of list.
Ship Production-Ready AI Systems, Mobile Apps & Automation Platforms
I'm an AI & Mobile App Developer who takes products from idea to production building intelligent AI systems, scalable mobile applications, and automation platforms that deliver real business results.
I don't build half-finished prototypes or demo projects. I build secure, maintainable, production-ready products that scale with your business and provide long-term value.
Whether you need an AI-powered SaaS platform, a Flutter mobile app, a custom AI agent, or an enterprise automation solution, I can take your product from concept to deployment.
𝗔𝗜 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲:
🔹 OpenAI GPT-4o, Claude, Gemini, Llama, Mistral, Falcon, Gemma.
🔹 AI Agents, Multi-Agent Systems, CrewAI, AutoGen, LangChain, LangGraph.
🔹 OpenAI Assistants API, AI Copilots, Autonomous Workflows.
🔹 Business Process Automation, AI-Powered SaaS Platforms.
🔹 Conversational AI, Custom Chatbots, Intelligent Assistants.
𝗥𝗔𝗚 & 𝗞𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲 𝗦𝘆𝘀𝘁𝗲𝗺𝘀:
🔹 LangChain, LlamaIndex, Pinecone, Weaviate.
🔹 Qdrant, ChromaDB, FAISS, Milvus.
🔹 Enterprise Knowledge Bases & Semantic Search.
🔹 Document Intelligence, PDF Search & Retrieval Systems.
🔹 AI-Powered Internal Knowledge Platforms.
𝗩𝗼𝗶𝗰𝗲 𝗔𝗜 & 𝗦𝗽𝗲𝗲𝗰𝗵 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀:
🔹 Deepgram, OpenAI Whisper, ElevenLabs.
🔹 Amazon Polly, Azure AI Speech Services.
🔹 Real-Time Voice Assistants & AI Call Agents.
🔹 Speech-to-Text & Text-to-Speech Solutions.
🔹 Conversational Voice Applications & Automation.
𝗟𝗟𝗠 𝗙𝗶𝗻𝗲-𝗧𝘂𝗻𝗶𝗻𝗴 & 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻:
🔹 LoRA, QLoRA, PEFT, RLHF, DPO, SFT.
🔹 Hugging Face, Unsloth, Axolotl, SageMaker Training.
🔹 Quantization: AWQ, GPTQ, GGUF, GGML.
🔹 Model Optimization & Cost-Efficient Deployments.
𝗔𝗜 𝗗𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁 & 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲:
🔹 vLLM, TGI, TensorRT-LLM.
🔹 AWS SageMaker, RunPod, Google Cloud AI Platform.
🔹 Docker, Kubernetes, CI/CD Pipelines.
🔹 Scalable, Secure & Production-Ready AI Systems.
𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁:
🔹 Flutter, Dart, React Native.
🔹 Swift, SwiftUI, UIKit.
🔹 Kotlin, Jetpack Compose.
🔹 Cross-Platform & Native Mobile Applications.
🔹 AI-Powered Apps, FinTech, Healthcare & SaaS Solutions.
𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 𝗦𝗸𝗶𝗹𝗹𝘀:
🔹 React.js, Next.js, Vue.js, Nuxt.js.
🔹 TypeScript, Redux Toolkit, Tailwind CSS.
🔹 Progressive Web Apps (PWA) & Single Page Applications (SPA).
🔹 Responsive, Modern & High-Performance User Interfaces.
𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁:
🔹 Node.js, NestJS, Express.js.
🔹 Python, FastAPI, Django, Laravel.
🔹 REST APIs, GraphQL & Microservices Architecture.
🔹 Secure, Scalable & Enterprise-Grade Backend Systems.
𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀 & 𝗖𝗹𝗼𝘂𝗱:
🔹 PostgreSQL, MongoDB, MySQL.
🔹 Firebase, Supabase.
🔹 AWS, Google Cloud Platform (GCP), Microsoft Azure.
🔹 Cloud-Native & High-Availability Architectures.
𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗦𝘆𝘀𝘁𝗲𝗺𝘀:
🔹 Make (Integromat), Zapier, n8n.
🔹 CRM, Sales & Customer Support Automation.
🔹 AI Workflow Automation & Enterprise Process Optimization.
🔹 Business Intelligence & Operational Efficiency Solutions.
𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗕𝘂𝗶𝗹𝗱:
🔹 AI SaaS Platforms.
🔹 AI Agents & Business Copilots.
🔹 Mobile Apps (iOS, Android & Flutter).
🔹 AI Chatbots & Voice Assistants.
🔹 Healthcare & FinTech Applications.
🔹 Marketplace & Social Networking Platforms.
🔹 Booking, On-Demand & Delivery Apps.
🔹 Enterprise Automation Platforms.
🔹 Internal Dashboards & Admin Portals.
𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲:
🔹 Production-Ready Development.
🔹 Scalable System Architecture.
🔹 Clean, Maintainable Code.
🔹 Fast & Transparent Communication.
🔹 Reliable Delivery Timelines.
🔹 End-to-End Product Development.
🔹 Long-Term Technical Partnership.
𝗥𝗲𝘀𝘂𝗹𝘁:
From startup MVPs to enterprise-scale platforms, I build intelligent products that drive growth, automate operations, and create measurable business impact.
Send an invite or message with your project details, and I'll provide honest, practical guidance on the best approach for your product.
Skill Tags:
AI Developer | AI Engineer | AI Agent Developer | LLM Engineer | OpenAI Developer | GPT-4 Developer | Claude AI | LangChain Developer | RAG Systems | AI Automation Expert | Voice AI Developer | Generative AI Engineer | Mobile App Developer | Flutter Developer | iOS Developer | Android Developer | Swift Developer | Kotlin Developer | React Native Developer | Full Stack Developer | SaaS Developer | Automation Engineer | Node.js Developer | NestJS Developer | Python Developer | FastAPI Developer | Mobile App Development | Artificial Intelligence | AI Development | Workflow Automation
Muazam A.
has worked
.
$38/hr
92%
Job Success
$600K+ earned
Available now
Offers consultations
Start of list.
End of list.
📍 React Native development for production mobile apps
📍 Full stack engineering for complex backend systems
📍 AI Agent Development for automation and intelligent workflows
For more than 11 years, I’ve been working in mobile app development and full stack development, delivering scalable web platforms, high-performance mobile apps, and modern AI-driven systems.
This combination allows me to build products end-to-end, from mobile UI to backend architecture and AI logic.
📱 Mobile App Development & React Native Expertise
As a React Native developer, I’ve built and scaled mobile applications used in fintech, real estate, healthcare, marketplaces, and social platforms.
My mobile app development experience includes:
- Cross-platform iOS and Android apps
- Complex user roles and permissions
- Real-time features (chat, live updates, tracking)
- High-load backend integrations
- Clean architecture designed for long-term growth
One of my key projects Breeze, a real estate mobile platform was developed end-to-end as a full stack developer and later raised $3M+ in investments.
That experience strongly shaped how I approach architecture, scalability, and product quality.
🤖 AI Agent Development & Automation
In parallel with product engineering, I focus heavily on AI Agent Development.
As an AI Agent Developer and AI Automation Expert, I design systems that go far beyond simple chatbots.
I build:
- AI agents with planner-executor architecture
- Multi-agent systems with task orchestration
- AI chatbots connected to business data
- AI automation pipelines for operations, research, and analytics
- RAG systems using embeddings and vector databases
These AI agents are designed to interact with real systems, APIs, CRMs, databases, internal tools, and operate as part of a real product ecosystem.
My goal is always the same:
turn AI from an experiment into a reliable, controllable product component.
🔗 Where AI meets Full Stack Development
What makes my approach different is the combination of:
AI Developer + Full Stack Developer + Mobile App Developer
This means:
- AI agents integrated into web platforms
- Mobile apps powered by AI logic
- Backend services managing agent execution
- Dashboards for monitoring and control
- Secure and scalable infrastructure
Instead of isolated AI tools, clients get complete AI-powered products.
💡Clients usually come to me when they need:
- A senior engineer who understands product logic
- A CTO-level partner, not just a coder
- Clean architecture from day one
- Systems prepared for growth, investment, and scale
That’s why many clients stay long-term and treat me as a technical partner, not a temporary freelancer.
Oleg K.
has worked
.
Associated with
ProductCrafters
$19/hr
100%
Job Success
$300K+ earned
Available now
Offers consultations
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🏆 𝐓𝐨𝐩 𝟏% 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐢𝐎𝐒 (𝐒𝐰𝐢𝐟𝐭/𝐒𝐰𝐢𝐟𝐭𝐔𝐈) & 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐄𝐱𝐩𝐞𝐫𝐭 | 𝐇𝐢𝐠𝐡 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 MVP & 𝐏𝐢𝐱𝐞𝐥 𝐏𝐞𝐫𝐟𝐞𝐜𝐭 UI | 𝐋𝐨𝐧𝐠 𝐓𝐞𝐫𝐦 Support | Worked with | 𝐂𝐡𝐞𝐜𝐤𝐨𝐮𝐭 𝐩𝐨𝐫𝐭𝐟𝐨𝐥𝐢𝐨
With 50,000+ hours delivered on Upwork, a 100% Job Success Score, and Top Rated Plus status, AppMakers has become a trusted mobile app development partner for startups, scale-ups, and enterprise companies worldwide. Our team has contributed to products used by millions of users, including Hims & Hers 🇺🇸, Insight Timer 🇦🇺, Cal AI 🇺🇸, TejiMandi 🇮🇳, and 3Asafeer Education 🇦🇪.
⭐️ 𝐖𝐡𝐚𝐭 𝐰𝐞 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐰𝐢𝐭𝐡
✅ Mobile Development
- iOS (Swift, SwiftUI), Android, Flutter, React Native (Expo)
- Pixel-perfect UI implementation with smooth performance
- Custom animations, transitions, and polished user experience
- Deep debugging, performance tuning, and stability improvements
✅ Backend & Infrastructure
- Firebase, Supabase, PostgreSQL, MySQL
- AWS & Google Cloud (GCP)
- Scalable backend architecture and API design
- REST APIs (Node.js, Python, Django, PHP)
✅ Monetization & Payments
- In-App Purchases & Subscription Systems
- Integration with RevenueCat, Superwall, Adapty
- Stripe payment integrations (one-time & recurring)
- Paywall optimization, pricing strategy & lifecycle handling
✅ Analytics & Growth
- Mixpanel, Firebase Analytics, AppsFlyer, Branch
- Funnel tracking, conversion optimization & retention strategy
- A/B testing and data-driven product decisions
✅ AI & Advanced Features
- AI integrations, chatbots & LLM-powered experiences
- Voice-based features & real-time interactions
- Integration with Gemini APIs & OpenAI APIs
- ML-based personalization & automation
✅ Deployment & Scaling
- App Store & Play Store publishing (compliance-ready)
- CI/CD pipelines and automated deployments
- Performance optimization & scalability planning
- Long-term maintenance, updates & feature scaling
🚀 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗜𝗻
🌟 AI-Powered Mobile Apps (Chat, Automation, LLM APIs)
🌟 Health, Fitness & Wellness Apps
🌟 Telehealth & Remote Care Apps
🌟 Mental Health, Meditation & Self-Care Apps
🌟 Real-Time Video & Live Streaming Platforms
🌟Real Estate & Property Management Apps
🌟 Video Sharing & Creator Economy Apps
🌟 E-Learning & EdTech Platforms
🌟 E-Commerce & Marketplace Apps
🌟 On-Demand Service Apps (Taxi, Food, Delivery, Booking)
🌟 Chat, Messaging & Social Networking Apps
🌟 SaaS & Subscription-Based Mobile Platforms
🌟 Fintech, Payments & Personal Finance Apps
🌟 Coaching, Consulting & Personal Brand Apps
🌟 IoT & BLE-Enabled Smart Device Applications
⚡ 𝗪𝗢𝗥𝗞𝗜𝗡𝗚 𝗔𝗣𝗣𝗥𝗢𝗔𝗖𝗛
• Strategy-first approach with clear product direction
• Clean, maintainable architecture designed to scale
• Honest timelines and realistic expectations
• Consistent updates with zero communication gaps
• Long-term partnership mindset, not one-time delivery
• Limited client deal to maintain quality and attention
🎁 𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗚𝗘𝗧
- A strategic technical partner, not just a developer
- Honest feedback (even if it saves you money)
📩 𝗟𝗘𝗧'𝗦 𝗧𝗔𝗟𝗞
If you're serious about building something that works for long term, execute by right team - hit "Invite Now." Let's talk.
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AI Development, AI App Development, AI-Powered Mobile Apps, Custom AI Solutions, AI Agents Development, AI Integrations, AI Chatbot Development, Mobile App Development, Mobile App Developer, iOS App Development, iOS App Developer, Android App Development, Android App Developer, Flutter App Development, Flutter App Developer, React Native App Development, Cross-Platform App Development, Hybrid App Development, Custom Mobile App Development, Application Development, Mobile Apps, App Development, MVP Development, Full Stack Developer, Full Stack Development, Web Development, Web Developer, Full Stack Web Development, MERN Stack Developer, Node. js Development, SaaS Product Development, Custom Software Development, E-commerce Development
👉 Click “Invite to Job” or “Message”
Daxesh V.
has worked
.
Associated with
AppMakers | 200+ Global Clients | iOS, Android & AI App Specialists | Experts in Building Top-Viral Apps | Trusted by Founders Worldwide
$22/hr
87%
Job Success
$100K+ earned
Offers consultations
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An Innovative iOS and Android Mobile App Developer with 7+ years of development experience and has developed & published more than 40 Mobile Apps for Apple & Play Store.
I have exquisite experience with:
❖ Native & Cross-Platform mobile application development for iOS and Android devices.
❖ Memory Management, Multithreading, and Multitasking.
❖ Responsive Design for Android Devices (Android Phone, Tablet) and iOS Devices (iPhone, iPad)
❖ Creating UI/UX Designs of Mobile Apps
❖ Integration of Facebook, and Twitter. Google+, Linkedin
❖ Integration of Google Play Services (Google Maps, Mapbox SDK)
❖ Integration of Firebase Technologies (Firebase Cloud Messaging [FCM], Real-time Database, Analytics, AdMob, Crashlytics, Firebase Storage)
❖ Audio and Video Recorders, Players
❖ User Interface Features like Animations, Gestures, Swipes, Shaking
❖ Push Notification
❖ In-App Purchase
❖ Geolocation Apps
❖ Social Apps
❖ Enterprise and utility apps
❖ Face Recognition and Image Processing Apps
❖ Ride-sharing and Travel Guide apps
❖ Fitness apps
I'm a full-stack Mobile App Developer. I have worked with Startups and big IT firms. I have 20+ Success Stories turning Startups into growing IT firms. I have also worked with Uber-like apps, unique Job Search Portals, Healthcare, Medical & Fitness apps, e-commerce apps, and numerous others. My aim is always to explore new technologies while providing the services on which I excel.
As far as my Project Delivery and Client Satisfaction are concerned, I have a vast clientele. My core concern is to NEVER COMPROMISE ON QUALITY OF DELIVERABLE & on-time Delivery.
Over time, interacted with professionals from around the world including the UK, USA, Canada, Germany, Sweden, and Japan.
In addition to writing clean and structured code, I'm responsible for implementing and enforcing agile practices as SCRUM calls daily. Contributed to different presales activities where proposed suitable solutions and technologies according to clients' needs.
Along with Mobile App Development, I have been delivering Mobile Apps with proper Quality Assurance and Testing Services, comprising Unit, Smoke, Regression Testing, and maintenance services.
Umar Shahbaz K.
has worked
.
$25/hr
100%
Job Success
$20K+ earned
Available now
Offers consultations
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Flutter Mobile App Developer specializing in Android & iOS apps
✅ Rewarded as 🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 🏆 by Upwork (𝗧𝗼𝗽 𝟯%)
✅ 400+ hours and counting
✅ 30+ jobs completed successfully
✅ 100% Job Success (Client Satisfaction Ratio)
✅ High-Quality Work
✅ Fluent English
I built Shelf: Discover Great Apps with over 50k+users and 2k reviews with average rating of 4.6.
Types of Apps I Have Built
• Fintech Apps – Mobile banking, digital wallets, investment & trading platforms.
• E-commerce Apps – Online shopping, multi-vendor stores, and marketplaces.
• Real Estate Apps – Property listings, rental management, and virtual tours.
• Healthcare & Fitness Apps – Patient portals, telemedicine, health tracking, and gym apps.
• Social Media & Messaging Apps – Chat apps, community platforms, and video-sharing.
• Food Delivery & On-Demand Apps – Restaurant ordering, delivery tracking, and rider apps.
• Education & E-Learning Apps – Online courses, quizzes, student management systems.
• Travel & Booking Apps – Hotel booking, ride-sharing, and ticket reservations.
• Entertainment & Media Apps – Streaming platforms, news apps, and video-on-demand.
• AI-Powered Apps – AI chatbots, recommendation engines, voice & image recognition apps.
𝐓𝐨𝐩 𝐏𝐫𝐨𝐣𝐞𝐜𝐭:
• Shelf: Discover Great Apps
- From 500 to 100K+ users
- Full cycle: UX, code, App Store launch
⭐⭐⭐⭐⭐
"The best dev team out there. All team members are great communicators and are able to keep project owners up to date, as needed. The team is solutions-oriented and definitely committed to quality. I look forward to working with them again in the future."
Orisuun Orisuun, United States
⭐⭐⭐⭐⭐
"Thank you for your work. I am pleased with the progress we have made together and appreciate your efforts and professionalism throughout the project"
MultiVendor, United Kingdom
If you are seeking a React developer, Android developer, iOS developer, Flutter app developer, Java developer, AI developer, AI chatbot developer, mobile game developer, mobile UI/UX designer, or someone skilled in javascript, React js, React Native mobile, mobile app development, mobile app design, and flutter firebase, I bring the expertise to turn your ideas into polished, scalable applications.
Highlighted Skills:
Mobile App Development | Mobile App Developer | Flutter Mobile App| Flutter Mobile App Developer | Flutter Mobile App Firebase | Flutter Mobile App Dart | Flutter Mobile App Developer | Mobile App Developer | Mobile Developer | React Native | React Native Mobile App Development | Mobile App Builder | Flutter Mobile App Developer | Flutter Laravel | Mobile App Development | Mobile App Developer | Flutter Mobile App| Flutter Developer | Flutter Mobile App Firebase
Saim I.
has worked
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Associated with
Webrange Solutions
$10K+
earned
$15/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
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Hi, I’m Sandeep - a Principal Software Architect and Full Stack Developer with 14+ years of experience building scalable SaaS platforms, AI-powered applications, enterprise systems, mobile apps, and high-performance web solutions for startups, agencies, and global businesses.
I help companies transform ideas into production-ready digital products with a strong focus on scalability, performance, automation, clean architecture, and business growth.
From MVP development to enterprise-grade platforms, I provide end-to-end product engineering services with modern technologies and agile execution.
▶Core Expertise
📱 Mobile Apps: Flutter, React Native, Swift, Kotlin, Cross-Platform & Native Development
🌐 Frontend: React.js, Next.js, Vue.js, TypeScript, Tailwind CSS, Responsive UI/UX
⚙️ Backend & APIs: Node.js, NestJS, Express.js, FastAPI, Django, Laravel, REST API, GraphQL
🗄️ Database & Cloud: MongoDB, PostgreSQL, MySQL, Firebase, Supabase, Redis, AWS, GCP, Azure, Docker, Kubernetes, CI/CD
🤖 AI & Automation: OpenAI API, Claude API, LangChain, AI Agents, Chatbots, n8n, Zapier, CRM Automation, API Integrations
▶Industries & Platforms I’ve Worked On
✔ AI SaaS Platforms
✔ Healthcare & Telemedicine Apps
✔ E-commerce & Marketplace Platforms
✔ ERP & CRM Systems
✔ Food Delivery & Grocery Apps
✔ Real Estate Platforms
✔ Fintech & Digital Wallet Solutions
✔ Education & LMS Platforms
✔ Logistics & Fleet Management Systems
✔ OTT & Video Streaming Platforms
✔ Dating & Matchmaking Apps
✔ Booking & Reservation Platforms
✔ Restaurant & QR Ordering Systems
✔ Taxi & Mobility Applications
✔ On-Demand Service Platforms
✔ Construction & Field Service Software
▶What I Deliver
- End-to-End Product Development
- Product Strategy & Technical Architecture
- UI/UX Planning & Wireframing
- Frontend & Backend Development
- API Integrations & Automation
- Cloud Deployment & DevOps
- Application Scaling & Maintenance
- Business-Focused Engineering
- MVP Development for Startups
- Scalable SaaS Applications
- AI Integration & Automation Systems
- Performance Optimization
- Security & Scalable Architecture
- Agile Development Process
▶Why Clients Work With Me
✅ 14+ Years of Development Experience
✅ 50+ Successfully Delivered Global Projects
✅ Strong Technical & Business Understanding
✅ Clean, Scalable & Maintainable Code
✅ Fast Communication & Transparent Workflow
✅ Long-Term Collaboration Approach
✅ Product-Focused Development Mindset
✅ Scalable Architecture for Future Growth
▶Let’s Build Your Next Product
Whether you need:
an AI-powered SaaS platform,
a scalable mobile app,
a modern web application,
an automation system,
or a custom enterprise solution,
I can help you design, develop, launch, and scale it efficiently.
👉Let’s discuss your product vision, roadmap, and business goals to build something impactful and scalable.
Sandeep A.
has worked
.