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$12/hr
100%
Job Success
$200K+ earned
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🏆Top Rated Plus Mobile App Expert🏆
I'm a full-stack mobile app developer with 5+ years of experience building high-performance, cross-platform and native mobile applications for iOS and Android. Whether you need a pixel-perfect Flutter app, a React Native solution, or a pure native Swift/Kotlin experience I deliver clean, scalable, production-ready code.
What I Build:
• AI-Powered Mobile Apps Chatbots, voice assistants, smart recommendation engines, on-device ML, real-time AI features using OpenAI, Claude, and Gemini APIs all running beautifully on mobile
• Cross-platform apps with Flutter (Dart) & React Native (JavaScript/TypeScript)
• AI Backend Integration -LLM pipelines, vector databases, embedding-based search, RAG architectures - wired seamlessly into your mobile frontend
• Native iOS apps with Swift, SwiftUI, UIKit, and Xcode
• Native Android apps with Kotlin, Jetpack Compose, and Android Studio
• REST API & GraphQL integration, Firebase, Supabase, AWS Amplify
• App Store & Google Play publishing, CI/CD with Fastlane, Bitrise, GitHub Actions
Core Skills & Technologies:
Flutter • Dart • React Native • Expo • Swift • SwiftUI • UIKit • Kotlin • Jetpack Compose • Android SDK • iOS SDK • Firebase • Firestore • Push Notifications (FCN/APNs) • Redux • MobX • Provider • Bloc • GetX • SQLite • Realm • Hive • REST APIs • GraphQL • WebSockets • In-App Purchases • Apple Pay • Google Pay • Stripe Integration • ARKit • CoreML • Google Maps SDK • App Store Optimization (ASO)
Industries Served:
FinTech | eCommerce | HealthTech | EdTech | Social Networking | On-Demand Delivery | Real Estate | SaaS
Why Clients Choose Me:
• Clean architecture (MVVM, Clean Architecture, BLoC pattern)
• 100% on-time delivery with clear communication
• Full ownership from wireframe to App Store/Play Store launch
• Bug-free, performance-optimized, and maintainable code
• Post-launch support and maintenance available
Whether you're a startup building your MVP or an enterprise scaling your mobile product, I'm here to turn your idea into a flawless app experience.
Let's build something great message me today!
Satinder Pal S.
has worked
.
Associated with
Geek Informatic & Technologies Private Limited
$2M+
earned
$21/hr
100%
Job Success
$7K+ earned
Available now
Offers consultations
Start of list.
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🥇 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫
✅ 𝟓𝟎+ 𝐀𝐩𝐩𝐬 𝐁𝐮𝐢𝐥𝐭
✅ 𝟕+ 𝐘𝐞𝐚𝐫𝐬 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐢𝐧 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
✅ 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐜𝐨𝐫𝐞
✅ 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐢𝐎𝐒 & 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫
I’m Rizwan, a 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 Mobile App Developer with 𝟕+ 𝐲𝐞𝐚𝐫𝐬 of experience who creates cross platform applications using 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 and 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞. My experience includes developing multiple applications across business and e-commerce solutions to e-learning systems, booking platforms, delivery apps and marketplaces for startups and businesses to launch their ideas.
I create applications which provide an excellent user experience while maintaining reliability and scalability. With deep knowledge of 𝐔𝐈 𝐔𝐗 principles, it enables me to develop visually appealing applications that function well and remain simple to maintain.
📌 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐈 𝐎𝐟𝐟𝐞𝐫:
✅ Native & Cross-Platform Mobile App Development
Frameworks: Flutter, React Native, FlutterFlow
Languages: Dart, Java, TypeScript, Kotlin, Swift
IDEs & Tools: Android Studio, Xcode, Visual Studio, VS Code
✅ Backend Development
Node.js, Express.js, PHP
Laravel, Firebase, Supabase
✅ UI/UX Design
Figma, Adobe XD, Sketch
✅ Databases
SQLite, MySQL, MongoDB, PostgreSQL, Firebase
✅ AI & Automation
OpenAI, ChatGPT, AI-driven automation, Bot Farms, AI Marketing Automation
✅ Project Management & Testing
Agile (Scrum/Kanban), Unit Testing, Project Documentation
Version Control: Git, GitHub, Bitbucket, SVN
Collaboration: Trello, Jira
✅ Deployment & OS
Apple App Store, Google Play Store
Linux, macOS
📌 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐲-𝐒𝐩𝐞𝐜𝐢𝐟𝐢𝐜 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞
✦ E-commerce & Retail: Scalable stores with smooth catalogs & checkout flows
✦ Fintech: Secure digital wallets, banking apps, and payment gateways
✦ Healthcare: HIPAA-conscious telemedicine & patient platforms
✦ EdTech & SaaS: Interactive learning systems & scalable SaaS solutions
✦ Enterprise & Manufacturing: ERP apps for workflow, inventory, and production management
📌 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞
✅ I have delivered more than 50 mobile applications with satisfied clients.
✅ The combination of timely delivery and budget-friendly development produces high-quality apps.
✅ I maintain complete transparency by providing you with updates at every development stage to maximize your return on investment.
✅ I establish long-term business relationships because I help clients build apps and maintain their growth through ongoing support.
✅ 𝐅𝐫𝐞𝐞 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐭𝐢𝐨𝐧
Thinking about building a mobile app? I offer a free consultation to help you get started the right way. In our session, I’ll walk you through:
✦ Choosing the right technology stack (Flutter, React Native, Firebase, etc.)
✦ Strategies for clean architecture and future scalability
✦ A clear breakdown of cost and timeline based on your project
✦ Practical solutions for API integrations, UI/UX, real-time features, and more
Let’s connect to bring your vision to life and turn your idea into a powerful app.
Simply click “𝐈𝐧𝐯𝐢𝐭𝐞 𝐭𝐨 𝐉𝐨𝐛” and we can get started.
I’d be happy to go through your ideas, suggest tech stack and timelines for your app.
𝑹𝒆𝒍𝒂𝒕𝒆𝒅 𝑲𝒆𝒚𝒘𝒐𝒓𝒅𝒔: mobile app design | mobile application developer | React Native app developer | Mobile app development | Mobile App developer | Flutter | Firebase | Dart | React Native | Node.js | grocery app | pet app | recipe app | cross-platform development | mobile app design | hybrid mobile app | ai mobile app | flutter app | react native app | react native developer | flutter developer | ecommerce app | trading app | senior mobile app developer | ios app developer | ios | android ios developer | android kotlin | android developer | flutter dart android | flutter dart | flutter firebase | flutter flow developer | flutterflow developer | react typescript | ionic | ios swift | flutter ios android | flutter ios | mobile app ui ux designer | mobile ui ux designer | full stack developer | backend developer | saas developer | saas | ecommerce app | progressive web apps | saas ui/ux designer | ui/ux web designer | senior ui/ux designer | ui/ux designer | ui ux | mobile ui ux | ui ux designer figma | ui ux designer | Android | supabase | hybrid app developer | cross platform mobile development | html css javascript | React JS | javascript | Native android | Native iOS | Java | web app design | web app designer
Rizwan A.
has worked
.
$18/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
Start of list.
End of list.
Top Rated Plus Full-Stack Developer | Top 3% on Upwork
Mobile Apps (iOS & Android) · Flutter · React Native · AI Apps · SaaS · Custom Software · Web Apps
100% Client Satisfaction - Delivered, every time.
With over 15 years of freelancing experience delivering real, measurable solutions, I built more than a career; I built IT Infonity, an in-house team of dedicated experts united by a shared commitment to creative thinking, high-quality design, & development that tells your story & strengthens your bottom line. Having successfully delivered 200+ mobile apps, AI-powered applications, & web solutions for startups, SMBs, & enterprises worldwide, we specialize in turning bold ideas into scalable, intelligent digital products. From AI-driven mobile and web platforms powered by OpenAI, Claude & LangChain to cross-platform apps built with Flutter, React Native, & Swift backed by a full modern stack every solution we deliver is architected for performance, built for scale, and tailored to reflect exactly who you are and where you're going.
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 your first idea through launch every stage, fully managed.
◉ Clean, production-ready code — Scalable architecture built to grow with your product.
◉ Transparent communication — Clear updates and fast response times you're never in the dark.
◉ Rigorous QA & testing — Thorough quality assurance before anything ships.
◉ Post-launch support & maintenance — Reliable free support after go-live.
◉ Secure, compliance-ready development — Built to meet GDPR, HIPAA, and age-restricted system requirements from day one.
⭐ 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤𝐬
◉ Cross-Platform App Development: React Native | Flutter
◉ Native App Development: Swift | 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
Partner With Me For:
Mobile App Development | AI Mobile App Development | AI App Development | iOS App Development | Android App Development | iPad/iPhone App Development | Web App Development | Custom App Development | Cross-Platform App Development | Hybrid App Development | MVP Development | SaaS App Development | Flutter | React Native | Node.js | Python | PHP | Angular | MEAN Stack | WordPress | Firebase | AI/ML Development | Agentic AI Development | AI Agent Development | OpenAI/GPT Integration | Claude AI Integration | Llama Development | AI-Enabled Platforms | Automation | Healthcare App Development | Fintech App Development | EdTech App Development | eCommerce App Development | Real Estate App Development | Fitness App Development | Logistics App Development | Social Media App Development | Fantasy App Development | Dating App Development | API Development & Integration | Application Tracking System | Marketplace App Development | Supabase | Next.js | NestJS | On-demand App Development | Vue.js | Django | Flask | Laravel | Express.js | TypeScript | MongoDB | PostgreSQL | MySQL | LLM Integration | RAG System Development | LangChain | LlamaIndex | AI Chatbot Development | AI Voice Agent | AutoGen | OpenAI API Integration | Gemini API Integration | AI-Powered SaaS | Vercel | Google Cloud Platform | REST API | Agentic Workflow | PWA | CMS
Arun R.
has worked
.
Associated with
IT Infonity
$22/hr
100%
Job Success
$60K+ earned
Start of list.
End of list.
I have 18+ years of professional experience in Mobile App Development. I have successfully executed numerous projects globally with different clients in various countries. As a Developer, I strongly appreciate optimum, clean, well-structured & communicative code.
I have extensive experience in following technology & Skills.
- Flutter / Dart
- Android / Kotlin
- Firebase / MySql / SQLite
- MobX / BLOC state management
- Google maps
- Google, Facebook, Email, Twitter, Github, Phone, Apple authentications
- Crashlytics, Google Analytics, Admob, Push notifications
- Custom widgets and complex animations
- In-App purchase, Stripe
- Figma, Sketch, Adobe XD resource extraction
- BDD, TDD
Thanks a million for viewing my profile.
Manish P.
has worked
.
Associated with
Concetto Labs
$200K+
earned
$30/hr
100%
Job Success
$200K+ earned
Available now
Start of list.
End of list.
I've built 50+ mobile apps, custom software, and web platforms on Upwork: marketplaces, dating apps, healthcare tools, and Twilio/Stripe integrations with a 100% Job Success Score and clients who keep hiring me back for the next phase.
Most of my work falls into four buckets: marketplace/on-demand platforms, social and dating apps with real-time features, custom software built around a specific business process, and backend integrations (Twilio, Stripe) that other developers get stuck on.
𝐀 𝐟𝐞𝐰 𝐬𝐩𝐞𝐜𝐢𝐟𝐢𝐜𝐬:
I built a job marketplace from scratch with separate seeker, employer, and admin roles plus live chat. I've shipped two dating apps, including one with a custom matching mechanic. I built a customer-tracking platform and an internal tool for managing zone/location data on a map, the kind of purpose-built software that isn't a template, it's built around how a specific business actually operates.
I connected a Twilio BYOC SIP trunk to an international carrier's number, working directly with the telecom provider, not just the Twilio dashboard. I've maintained a pet-sharing app (Dogshare) across multiple engagements, including converting it to a two-language build. And I built a healthcare diagnostic app (Hearty Scan) plus its Android counterpart for a client who came back for round two.
𝐖𝐡𝐞𝐫𝐞 𝐈 𝐟𝐢𝐭:
- Mobile: Flutter, React Native, Swift, SwiftUI, Kotlin, native and cross-platform
- Backend & custom software: PHP, Python, Node.js
- Integrations: Twilio (including BYOC/SIP), Stripe, OpenSearch
- Data/infra: Firebase, MongoDB, AWS
𝐖𝐡𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐫𝐞𝐡𝐢𝐫𝐞 𝐦𝐞:
I scope before I code , you'll know what you're getting and roughly when, before I start. When something in the spec doesn't add up, I flag it early instead of building around it silently. And I hand off documented code, not a black box, so you're not stuck coming back to me for every small change.
If you're building custom software, a marketplace, a healthcare or on-demand app, or need someone who can actually finish a Twilio or Stripe integration without three follow-up calls" 𝐥𝐞𝐭'𝐬 𝐭𝐚𝐥𝐤 𝐚𝐛𝐨𝐮𝐭 𝐰𝐡𝐚𝐭 𝐲𝐨𝐮'𝐫𝐞 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠."
Gary S.
has worked
.
Associated with
NetSet Software Solutions
$2M+
earned
$15/hr
97%
Job Success
$400K+ earned
Available now
Offers consultations
Start of list.
End of list.
𝐇𝐞𝐫𝐞'𝐬 𝐭𝐡𝐞 𝐝𝐞𝐚𝐥: Share your idea, and we’ll turn it into a functional, scalable, and beautifully designed app that solves real problems and generates revenue.
𝗛𝗼𝘄 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗠𝗼𝘃𝗲𝘀 𝗙𝗿𝗼𝗺 𝗜𝗱𝗲𝗮 𝘁𝗼 𝗟𝗶𝘃𝗲 𝗣𝗿𝗼𝗱𝘂𝗰𝘁:
Every project follows a clear, proven journey, divided into milestones:
UI/UX design → Front-end development → Backend development → Deployment → Post-launch maintenance (8 weeks FREE)
This ensures transparency, predictable delivery, and zero surprises.
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I offer a 𝗳𝗿𝗲𝗲 𝟯𝟬-𝗺𝗶𝗻𝘂𝘁𝗲 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 to discuss and refine your idea, recommend the right tech stack, and forecast any ongoing costs as your user base grows, so you avoid surprises and make informed decision with clarity.
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Words from a recent client after working with us: (check more on my profile below)
"𝙍𝙖𝙟𝙖 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙥𝙧𝙤𝙛𝙚𝙨𝙨𝙞𝙤𝙣𝙖𝙡 𝙖𝙣𝙙 𝙞𝙨 𝙖𝙡𝙬𝙖𝙮𝙨 10 𝙨𝙩𝙚𝙥𝙨 𝙖𝙝𝙚𝙖𝙙 𝙤𝙛 𝙠𝙣𝙤𝙬𝙞𝙣𝙜 𝙬𝙝𝙖𝙩 𝙩𝙝𝙚 𝙗𝙪𝙞𝙡𝙙 𝙣𝙚𝙚𝙙𝙨. 𝙒𝙚 𝙖𝙧𝙚 𝙘𝙤𝙣𝙩𝙞𝙣𝙪𝙞𝙣𝙜 𝙩𝙤 𝙬𝙤𝙧𝙠 𝙩𝙤𝙜𝙚𝙩𝙝𝙚𝙧 𝙖𝙣𝙙 𝙄 𝙝𝙖𝙫𝙚 𝙖𝙡𝙧𝙚𝙖𝙙𝙮 𝙧𝙚𝙘𝙤𝙢𝙢𝙚𝙣𝙙𝙚𝙙 𝙝𝙞𝙢 𝙩𝙤 𝙤𝙩𝙝𝙚𝙧 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨."
⭐⭐⭐⭐⭐
- 𝘼𝙡𝙞𝙘𝙞𝙖 𝘾𝙤𝙬𝙖𝙣
𝙁𝙤𝙪𝙣𝙙𝙚𝙧 𝙈𝙚𝙨𝙢𝙚𝙧 (𝙐𝙣𝙞𝙩𝙚𝙙 𝙆𝙞𝙣𝙜𝙙𝙤𝙢)
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I've majored in software engineering, and I've used a myriad of technologies to help various businesses create mobile apps that have generated millions in revenue.
Over the past 5+ years, I have developed a wide range of iOS and Android mobile apps.
✅ Food delivery app
✅ Ride booking app (like Uber)
✅ Real estate listing app (Like Airbnb)
✅ Social media mobile app (like TikTok/Instagram)
✅ Startups/Investment management mobile app
✅ Wellness mobile app
✅ Fitness and Nutrition mobile app (like CalAI, MyFitnessPal)
✅ Sports mobile app
✅ E-commerce mobile app
✅ Language Learning Mobile App (Like Duolingo)
✅ Event management mobile app
✅ Grocery/Meal Planning mobile app
✅ Freelance mobile app
✅ Service Booking Mobile App (Home/HVAC)
✅ Inventory Management Mobile App
✅ Learning Management Mobile App
✅ Appointment Booking Mobile App (Salon/Doctor)
✅ Venue Booking Mobile App (Sports/Events)
✅ Task Management Mobile App (Project Management/To-Do)
✅ On-Demand Custom Mobile Apps
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As your 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗽𝗮𝗿𝘁𝗻𝗲𝗿, I go above and beyond to ensure your app’s success, from concept to launch.
What I Also Bring Beyond Development:
→ Technology & architecture consulting
→ Product roadmap & feature prioritization
→ Help you understand any possible ongoing costs with the project
→ Cost-effective tech stack selection with long-term cost planning
→ Scalability strategy as your user base grows
→ Technical support during investor or stakeholder discussions
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𝗠𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲 & 𝗟𝗼𝗻𝗴-𝗧𝗲𝗿𝗺 𝗦𝘂𝗽𝗽𝗼𝗿𝘁
I provide free post-delivery support for 8 weeks, followed by flexible maintenance plans based on your product needs, usage scale, and future roadmap, always discussed transparently.
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🚀 If you’re looking for someone who understands your product, owns outcomes, communicates clearly, and thinks long-term, let’s connect and build something solid.
❗❗ Check out my portfolio! ❗❗
Highlighted Skills:
Full Stack Developer | Expert Full Stack Developer | Full Stack Mobile App Developer | Full Stack AI Developer | Expert Full Stack Mobile App 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 | IT Consultation | App Developer | AI App Developer | iOS App Development | iOS App | Android App Development | Hybrid App development | Mobile App Development Consultation | Flutter | Firebase | Dart | Flutter Dart | Flutter Firebase | iOS Development | Android App Development | Smartphone | User Authentication | In App Purchases | API Integration
Raja A.
has worked
.
Associated with
Evencir Technologies
$6K+
earned
United Arab Emirates
$25/hr
100%
Job Success
Available now
Start of list.
End of list.
Hi, I’m Jehanzeb!
I build cross-platform mobile applications and full-stack web systems with clean, highly predictable codebases. I work as an iOS app developer + Android app developer using one Flutter codebase for both platforms. I also specialize in designing scalable architectures that connect high-performance front ends with robust MERN stack backends and secure real-time admin dashboards.
WHAT I SPECIALIZE IN:
→ Flutter Mobile App Development
• Cross-platform iOS and Android applications
• Flutter & Firebase integration
• Clean Architecture and scalable project structures
• Real-time features and notifications
• API integrations
• Payment gateway integration
• App Store and Google Play deployment
• Performance optimization and bug fixing
→ MERN Stack Development
• React.js frontend applications
• Node.js and Express.js backend development
• MongoDB database design and optimization
• REST APIs and third-party integrations
• Authentication and authorization systems
• Admin dashboards and internal tools
• Real-time applications using WebSockets
• Scalable backend architecture
→ Full-Stack Product Development
• Minimum viable product development
• Marketplace applications
• CRM and ERP systems
• Saas based platforms
• Booking and scheduling platforms
WHO IS THIS FOR:
• Founders & Startups: Deploying stable, investor-ready MVPs, prototypes, and beta versions.
• SaaS Platform Owners: Expanding legacy monoliths into optimized, fast-loading infrastructures.
• Enterprise Teams: Businesses requiring secure system design that effortlessly supports 10,000+ active users.
What gets delivered:
• Flutter app synced perfectly with backend logic
• Admin dashboard giving real-time product control
• APIs that remain stable under scale and load
• Automated AI system replacing manual operations
• Full unit and integration testing on every build
If you're looking for a Flutter developer or MERN stack developer who can take ownership of both mobile and web development while maintaining high delivery standards, I'd be happy to discuss your project.
LIMITED PROJECT SLOTS AVAILABLE:
I take on a limited number of projects at a time. Book a consultation, and I'll personally review your setup and give you a practical roadmap.
Muhammad J.
has worked
.
Associated with
MindRex
$15/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
Start of list.
End of list.
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
.
$35/hr
96%
Job Success
$20K+ earned
Start of list.
End of list.
There was once a visionary entrepreneur who saw a gap in the market and dreamed of creating something extraordinary. The concept was brilliant. But the only problem? They didn’t know how to code. That’s where I come in.
As a mobile app developer, I bridge the gap between your big ideas and the technology needed to make them real. With a focus on understanding your goals and crafting solutions that align with your vision, I’m here to help you with mobile app development that’s not only functional but also unforgettable. Let’s take your mobile app development idea from concept to reality—together.
🌟𝗪𝗵𝗮𝘁 𝗜 𝗢𝗳𝗳𝗲𝗿:
- Cross-platform Mobile App, Web App, iOS & Android App Development
- Customized admin panel dashboard
- BRD, SRS, System Design & DB Design
- UI/UX design and prototype for the Mobile app
- Backend Development and API Integrations
- App testing and publishing to App Store and Play Store
💡 𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸𝘀:
📱 Mobile Apps: Flutter (Dart) • React native (JavaScript) • Swift • Kotlin
🌐 Web Apps: React.js • Next.js • Angular
💻 Backend & Databases: Node.js • Express.js • PHP • Laravel • MongoDB • MySQL • PostgresQL
🔗API Integrations: RESTful • GraphQL APIs
🤖 AI & Automation: AI Integrations • AI Chatbot & AI Agents
🎨 UX/UI Design: Figma
🌍 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈’𝐯𝐞 𝐁𝐮𝐢𝐥𝐭 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽𝐬 𝐅𝐨𝐫:
🏥 Healthcare & Fitness
📚 Education & E-learning
🛒 E-commerce
💰 Finance & Fintech
✈️ Travel & Hospitality
📱 Social Networking
🍔 On-Demand Services (e.g., food delivery, ride-sharing)
🎬 Entertainment & Media
🏠 Real Estate
👗 Retail & Fashion
💼 Enterprise Solutions
🤝 𝗪𝗵𝘆 𝗛𝗶𝗿𝗲 𝗠𝗲 𝗳𝗼𝗿 𝗬𝗼𝘂𝗿 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗣𝗿𝗼𝗷𝗲𝗰𝘁?
1. Ensure BRD, SRS, System Design & DB Design to make sure they align with your business plan.
2. Teamwork to bring excellence on your mobile app development project
3. Long-term partnership and support to ensure scalability and continuous fixing
📞☎️ 𝐎𝐮𝐫 𝐟𝐢𝐫𝐬𝐭 𝐜𝐚𝐥𝐥?
Whether you're building from the ground up or refining an existing product, I’ll provide you with a clear, step-by-step plan to move forward with confidence.
👉 Message me now, and let’s schedule a free consultation to chart the path to your mobile app development success.
Key Skills & Proficiencies: Mobile App Development (iOS & Android), Cross-Platform Development (Flutter, React Native), Native Development (Swift, Kotlin, Java), Backend Development (Node.js, Express.js, PHP, Firebase), Frontend Development (React, TypeScript, HTML, CSS, Tailwind CSS), API Development & Integration (REST, GraphQL, Firebase), UI/UX Design (Figma, MUI, Ant Design), Cloud Services (AWS, GCP, Azure), Database Management (MySQL, MongoDB, PostgreSQL), AI & Automation (Chatbots, OpenAI API, AI Integrations), Mobile App Deployment (App Store, Google Play), App Maintenance & Updates, Security & Compliance (HIPAA, GDPR), Testing (Unit Tests, Pytest)
Md Abdullah A.
has worked
.
$30/hr
91%
Job Success
$10K+ earned
Available now
Offers consultations
Start of list.
End of list.
I’m an expert iOS and Android mobile app developer and Full Stack engineer leading a talented team of developers. We specialize in building AI-driven, scalable mobile apps and SaaS platforms that combine innovation, performance, and user engagement.
I also specialize in transforming ideas into production-ready MVPs, integrating modern AI tools and chatbots, and building cross-platform applications that are fast, secure, and designed to scale.
🌐 Industry Experience
⚫️ AI Chatbot Apps (ChatGPT / OpenAI API Integration)
⚫️ AI & ML-Powered Mobile Apps
⚫️ SaaS Platforms & Dashboards – Multi-tenant architectures, role-based access, subscription billing (Stripe, PayPal), and analytics dashboards
⚫️ MVP Development for Startups – Quick prototypes built using Flutter, React Native, Node.js, and Firebase for early launch or investor pitches
⚫️ Tools & Utility Apps
⚫️ Taxi Booking & Map-Based Apps
⚫️ Health & Fitness Apps
⚫️ Education & E-Learning Platforms
⚫️ E-commerce & Restaurant Apps
🚀 My Services
⚫️ AI Development & Integration (ChatGPT, OpenAI, NLP, AI Automation)
⚫️ Full Stack & SaaS App Development (React, Next.js, Node.js, Express, Firebase, Supabase)
⚫️ Mobile App Development (Android, iOS, Flutter, React Native)
⚫️ Custom MVP & Startup Solutions (MVP-to-scale mindset – I build production-grade apps, not prototypes that break in scaling)
⚫️ Backend Development (Node.js, PHP Laravel, REST & GraphQL APIs)
⚫️ Cloud Deployment: AWS, GCP, Azure
⚫️ Payment Gateway Integration: Stripe, PayPal, Skrill, Flutterwave, PayStack
⚫️ API Integrations & Automations: CRM, AI tools, Twilio, Firebase, AWS, Supabase
⚫️ Version Control & CI/CD: GitHub, Bitbucket, Docker, GitHub Actions
🎨 UI/UX Design
⚫️ User Interface Design for Mobile & Web
⚫️ Wireframes, Mockups & Prototypes (Figma, Adobe XD, Sketch)
⚫️ Pixel-perfect UI Implementation (Figma-to-code integration)
⚫️ Responsive & Accessible Design
🚩 Why Choose Me?
🟩 10+ Years of Mobile App & SaaS Development
🟩 Trusted by 30+ startups and SaaS founders for scalable architecture and clean code
🟩 Proven AI & Chatbot App Development Expertise
🟩 End-to-end ownership — frontend, backend, and cloud deployment
🟩 1-Month Free Maintenance & Ongoing Support
🟩 Transparent Communication & Daily Updates
🟩 Fast Delivery Without Sacrificing Quality
✅ Highlighted Skills
JavaScript (JS) | Full Stack Development | Mobile App Development |
Flutter | React Native | Kotlin | Swift | Node.js | Next.js |
Generative AI | Chatbot Development | AI Integration |
Firebase | AWS | MVP Development | SaaS Platforms | Stripe |
Supabase | REST & GraphQL APIs | Docker | CI/CD
🧠 Industries I Work With
Tech Startups | SaaS & Cloud Platforms | Fintech | EdTech |
Social Media | Healthcare | Fitness & Lifestyle Apps
🎯 What You Get Working With Me
Pixel-perfect UI implementation
Clean, modular, and documented codebases
Scalable MVPs ready for growth
Fast turnaround with full-stack reliability
Long-term product partnership — from MVP to enterprise scale
📩 Let’s Discuss Your Project
Whether you need a cross-platform mobile app, AI chatbot, or a complete SaaS MVP, I can bring your idea to life with clean, scalable code and startup-ready speed.
🔥 SEO Tags:
mobile app developer, AI app developer, AI chatbot developer, SaaS developer, Flutter developer, React Native developer, Android app development, iOS app development, full-stack app developer, MVP expert, AI integration, OpenAI apps, SaaS solutions, AI automation, cloud SaaS, startup apps, scalable mobile solutions, AI-powered automation, enterprise mobile apps
Bilal M.
has worked
.
Associated with
Climaxcode Technology LLC
$200
earned