Top 1% Mobile App Developer on Upwork | Flutter, iOS & Android | AI-Powered Apps | 100% Job Success
Tired of mobile apps that crash under real users, or developers who disappear mid-project?
I have solved that exact problem for 60+ founders and businesses. My clients launch apps that hold up on Day One, clean Flutter/native code, App Store & Google Play ready, and AI features that actually work. 100% Job Success, Top Rated, 9+ years of experience, 30+ apps live in the market.
๐ฏ WHAT I BUILD
โธ FULL-CYCLE MOBILE APP DEVELOPMENT
From idea to App Store/Play Store launch. Flutter, Android, and iOS apps built for real users from day one.
โธ CROSS-PLATFORM APPS (FLUTTER + REACT NATIVE)
One codebase, native performance on both iOS and Android. Faster delivery without sacrificing quality.
โธ NATIVE ANDROID & iOS DEVELOPMENT
Platform-specific builds when performance or deep OS integration matters most.
โธ AI-POWERED MOBILE APPS
OpenAI API integration for smart features chat, recommendations, automation implemented cleanly, no over-engineering.
โธ ON-DEMAND & MARKETPLACE APPS
Ride booking, food delivery, real estate listing, e-commerce Uber/Airbnb-style apps built end-to-end.
โธ BACKEND & API DEVELOPMENT
Node.js, Python (FastAPI/Flask/Django), REST & GraphQL APIs, connected to Firebase, MySQL, MongoDB, or your stack of choice.
โธ CODE AUDIT & APP STABILIZATION
Inherited a buggy app? I audit performance, crashes, and architecture, then deliver a fix plan fast.
๐ฌ CLIENT FEEDBACK
Review 1:
Great experience working with Shahab Malik on our mobile app project. He's skilled in Flutter, Dart, Node.js, and API Integration, and delivered clean, functional code on time. Communication was smooth, and he was open to feedback. Highly recommended for Mobile App Development.
Review 2:
Shahab Malik is professional and responsive, with strong skills in Cross Platform and iOS/Android App Development using Flutter. He delivered a well-designed app with smooth UI and RESTful API integration, even adding some AI features.
๐ CREDENTIALS
- Top 1% Talent on Upwork Mobile App Development
- 100% Job Success, 60+ Projects Delivered
- 30+ Apps Live on App Store & Google Play
- 9+ Years of Experience
- AI Mobile App Development (OpenAI Integration)
๐ HOW WE START
โ๏ธ MESSAGE ME ON UPWORK
Have a mobile app idea, or an existing app that needs fixing? Message me for a free consultation and a clear plan to launch faster.
How I Work
Full-cycle mobile apps in Flutter, Android, iOS, with clean backend and API integration. Figma designs turned into pixel-perfect UI, progress tracked in Jira/Trello, communication through clear updates, and delivery with long-term support after launch.
๐ ๏ธ TOOLS & TECHNOLOGY
Mobile Development
Flutter, Dart, React Native, Android (Kotlin/Java), iOS (Swift)
Backend & Databases
Node.js, Python (FastAPI, Flask, Django), Firebase, Firestore, MySQL, MongoDB, SQLite
APIs & Integrations
REST API, GraphQL, OpenAI API, Firebase Cloud Functions
Cloud & Deployment
AWS, Google Cloud, Firebase
Design & Collaboration
Figma, Adobe XD, Material Design, Cupertino Widgets, Git, GitHub, GitLab, Bitbucket, Jira, Trello
Solutions Delivered
Ride/Booking Apps, Real Estate Apps, Social Media Apps, Sports Apps, Food Delivery Apps, E-commerce Apps, Learning Management Apps, Appointment Booking Apps, CRMs, On-demand Apps
Mobile App Developer, Flutter Developer, iOS Developer, Android Developer, AI Mobile App Development, Cross-Platform App Development
Keywords:
Flutter, Dart, OpenAI API, Full Stack Developer, Back End Developer, API Integration, Node.js, SQL, Mobile App Development, Mobile App Developer, Android App Development, Android App Developer, AI Mobile App Development, AI Mobile App Developer, Mobile App Design, Mobile App UI Design, Responsive Design, UI/UX Designer, Prototyping, Mobile App API Integration, iOS App Developer, iOS App Development, Hybrid App Development, Cross Platform App Development, Express.js, RESTful API, Machine Learning App Integration, Senior Mobile App Developer, Software Designer
#Flutter #Dart #OpenAIAPI #FullStackDeveloper #BackEndDeveloper #APIIntegration #Nodejs #SQL #MobileAppDevelopment #MobileAppDeveloper #AndroidAppDevelopment #AndroidAppDeveloper #AIMobileAppDevelopment #AIMobileAppDeveloper #MobileAppDesign #MobileAppUIDesign #ResponsiveDesign #UIUXDesigner #Prototyping #MobileAppAPIIntegration #iOSAppDeveloper #iOSAppDevelopment #HybridAppDevelopment #CrossPlatformAppDevelopment #Expressjs #RESTfulAPI #MachineLearningAppIntegration #SeniorMobileAppDeveloper #SoftwareDesigner
Mobile App Development
Mobile App Bug Fix
Android App Development
API Integration
Hybrid App Development
iOS Development
AI Mobile App Development
Website to Mobile App Conversion
Mobile App Design
Mobile App Redesign
Mobile UI Design
Mobile App Testing
Back-End Development
Flutter
Node.js
ExpressJS
Dart
Firebase
Supabase
REST API
Marina A.
London, United Kingdom
$30/hr
5.0
11 jobs
As an App Growth consultant, I help mobile app developers achieve both organic growth and targeted user acquisition, ensuring sustained performance, higher rankings, and increased downloads. My services include:
App Store Optimization (ASO) Services - keywords optimization, AB tests, competitor analysis, review and rating management, performance monitoring and reporting
User Acquisition (UA) Services - paid campaign strategy & set up, campaign management & optimization, design briefs, data analytics & reporting.
I also run Rankello, a boutique app growth agency that specialises on your bespoke needs.
A/B Testing
Mobile App Strategy
Organic Traffic Growth
App Store Optimization
Mobile App Localization
Growth Strategy
Performance Marketing
Customer Acquisition
Aliyu O.
Sheffield, United Kingdom
$50/hr
5.0
10 jobs
I build native and cross-platform iOS and Android apps for founders and businesses who need this project done right the first time, with zero surprises along the way. You get daily visibility into progress, straight answers when you ask a technical question, and an app that's actually ready to ship, not one that needs three more rounds of bug fixes after "final delivery."
๐ช๐ต๐ฎ๐ ๐ง๐ต๐ถ๐ ๐ ๐ฒ๐ฎ๐ป๐ ๐๐ผ๐ฟ ๐ฌ๐ผ๐:
- You stop worrying about the tech. I handle the decisions, you focus on your business.
- No disappearing acts. You always know where the project stands.
- No rebuild six months later. I build for scale from day one, so growth doesn't break what we shipped.
- No guessing on cost or timeline. Milestones are clear before we start, not renegotiated halfway through.
๐ช๐ต๐ ๐ ๐๐ฎ๐ป ๐ฃ๐ฟ๐ผ๐บ๐ถ๐๐ฒ ๐ง๐ต๐ถ๐:
15 years of native and cross-platform iOS and Android development, 50+ apps shipped across finance, healthcare, e-commerce, and social networking. I've worked as a CTO at funded startups, so I know what it's like to be the person accountable when an app has to work, not just look finished in a demo.
๐ถ๐ข๐ฆ: Swift, SwiftUI, UIKit, Core Data, Firebase, AWS Mobile Services
๐๐ป๐ฑ๐ฟ๐ผ๐ถ๐ฑ: Kotlin, Jetpack, Android SDK, Firebase
๐๐ฟ๐ผ๐๐-๐ฃ๐น๐ฎ๐๐ณ๐ผ๐ฟ๐บ: React Native
๐๐๐น๐น ๐๐ถ๐ณ๐ฒ๐ฐ๐๐ฐ๐น๐ฒ: requirements, UI/UX, build, testing, App Store and Play Store submission, post-launch support
๐๐ฒ๐๐ข๐ฝ๐: CI/CD pipelines (Fastlane, GitLab CI), AWS, Google Cloud
If you're hiring for a project that actually matters to your business, not just a cheap build to check a box, let's talk about what you're trying to build.
๐๐น๐ถ๐ฒ๐ป๐-๐๐ฒ๐ป๐๐ฟ๐ถ๐ฐ ๐๐ฝ๐ฝ๐ฟ๐ผ๐ฎ๐ฐ๐ต:
- Collaborative Development: Strong communicator with a knack for understanding client needs, providing regular updates, and incorporating feedback to ensure client satisfaction.
- User-Centered Design: Focused on creating intuitive, engaging, and accessible applications that align with user expectations and industry standards.
๐ช๐ต๐ ๐๐ต๐ผ๐ผ๐๐ฒ ๐ ๐ฒ?
- Proven Expertise: Over 15 years of experience specializing in native and cross-platform iOS and Android development.
- Quality Assurance: Commitment to delivering bug-free, high-performance applications.
- Timely Delivery: Ensuring project milestones are met on time, every time.
- Innovative Solutions: Bringing creativity and innovation to every project, ensuring your app stands out in the market.
Mobile App Development
Mobile App Improvement
Android App Development
Hybrid App Development
iOS Development
Mobile App
Android
iOS
React Native
Swift
AI Mobile App Development
iOS SDK
Android SDK
Mobile App Design
Android App
Oleg R.
London, United Kingdom
$40/hr
4.8
81 jobs
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.
๐ 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.
๐น Applied game mechanics for engaging experiences in mobile development where I was a Mobile Game Developer.
๐น Integrated real-time features, secure authentication, and cloud functions as Flutter Firebase Developer.
๐น Built seamless API integrations and data synchronization in mobile development in Flutter mobile app development as a Flutter Laravel Specialist.
๐ 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.
๐ 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.
๐React 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.
๐ฑ Performance & Scalability: Built apps supporting 1M+ users, integrating real-time updates, gamification, and video streaming.
๐ฐ Business Impact: Helped startups and enterprises generate $10M+ in revenue through well-optimized and engaging mobile applications.
iOS App Development Case Study ๐ฑ
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
๐ Rewarded as ๐ ๐ง๐ข๐ฃ ๐ฅ๐๐ง๐๐ ๐ฃ๐๐จ๐ฆ ๐
๐ 4154 mobile app development hours on Upwork and still counting
๐ 100% Job Success in mobile app development (Client Satisfaction Ratio)
๐ 54+ mobile app development jobs completed successfully
โ 98% of Clients Recommended working with me as with AI Mobile App Developer
โ 80% Long-term Repeat Clients
โ 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.
โ High-Quality Work
โ Cost-Effective AI Mobile App Developer
โ Fluent English Verified
โ 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
Mobile App Development
Smartphone
Android App Development
Hybrid App Development
iOS Development
Mobile App
Flutter
Kotlin
Generative AI
Large Language Model
AI Agent Development
React Native
Web Development
React
JavaScript
Laravel
Python
Node.js
AI Mobile App Development
Swift
Ahmed E.
Newcastle upon Tyne, United Kingdom
$28/hr
4.8
47 jobs
โ Upwork Skill Certified.
โ Top Rated Plus Mobile App developer IOS (Swift) & Android developer (Kotlin).
โ 50+ Apps uploaded on Appstore and Playstore over the past 4 years only.
โ 5+ years of Experience.
โ 5600+ Hours on Upwork Only.
In addition of being Certified IOS App Developer I have developed a wide range of Mobile Applications on different platforms. including Android/Kotlin, React Native, Ionic. I have successfully built Mobile Apps Integrating Firebase, Social Media integration, OCR, Text recognition, PDF Manipulation and Map locations.
My main interest is to create challenging applications using my vast programming experience, no matter how your project complexity is, I will not give up until I fulfill all the project requirements.
Mobile App Development
Android App Development
iOS Development
Kotlin
Java
Firebase
React Native
iOS
In-App Purchases
Swift
Android Studio
Python
Android
Apple Xcode
Machine Learning
Hamza Rafique A.
Manchester, United Kingdom
$25/hr
5.0
2 jobs
๐ ๐ซ๐จ๐ฆ ๐๐ข๐ฌ๐ข๐จ๐ง ๐ญ๐จ ๐๐ข๐ฅ๐ฅ๐ข๐จ๐ง๐ฌ ๐จ๐ ๐๐จ๐ฐ๐ง๐ฅ๐จ๐๐๐ฌ: ๐๐จ๐ฎ๐ซ ๐๐ฉ๐ฉ, ๐๐ฎ๐ข๐ฅ๐ญ ๐ญ๐จ ๐๐๐๐ฅ๐
Your vision. My execution.
I turn app ideas into launched, scalable products that users love. With 5+ years of experience and 80+ apps delivered, I build for impact, not just code.
๐๐๐๐๐๐ ๐๐ ๐๐๐๐๐
80M+ downloads across app stores
MVPs that secured funding and retained 40%+ users
Worked with founders across 40+ countries including US, UK, UAE, Australia, Germany
๐ ๐๐๐-๐๐๐๐๐ ๐๐๐๐๐๐๐๐๐
Development
Flutter โข React Native โข Swift โข Kotlin โข Clean Architecture
Design
Figma/XD prototyping โข User-centered UI/UX โข MVP roadmapping
Launch & Scale
App Store & Google Play submission โข CI/CD โข Post-launch scaling
๐๐๐๐๐๐๐๐๐๐ ๐ ๐๐๐๐๐
FinTech | HealthTech | EdTech | On-Demand | Social | E-Commerce | Real Estate | Media
๐๐ ๐๐๐๐๐๐๐: ๐๐๐๐๐, ๐ ๐๐๐, ๐๐๐๐๐๐๐๐
Strategy Session
We define your vision and map your MVP
Weekly Sprints
Consistent progress, real demos, zero surprises
Scalable Build
Clean architecture, tested code, ready to grow
Launch & Grow
Store deployment + scaling support
๐๐๐ ๐ ๐๐๐๐๐๐๐ ๐๐๐๐๐๐ ๐๐
Proven at scale
End-to-end ownership
Clear weekly updates
Built to last
๐๐๐โ๐ ๐๐๐๐๐๐ ๐๐๐๐ ๐๐๐
๐๐๐ฌ๐ฌ๐๐ ๐ ๐ฆ๐ ๐ญ๐จ๐๐๐ฒ ๐๐จ๐ซ ๐ ๐๐ซ๐๐ ๐๐-๐ฆ๐ข๐ง๐ฎ๐ญ๐ ๐ฌ๐ญ๐ซ๐๐ญ๐๐ ๐ฒ ๐๐๐ฅ๐ฅ + ๐ฒ๐จ๐ฎ๐ซ ๐๐๐ ๐ซ๐จ๐๐๐ฆ๐๐ฉ.
#MobileAppDevelopment #MobileAppDeveloper #Flutter #iOS #FlutterMobileAppDeveloper #AndroidAppDeveloper #AndroidAppDevelopment #FlutterMobileApp #MobileDeveloper #ReactNative #Firebase #Nodejs #AIAppDevelopment #AIMobileApp #AppDeveloper #BackendIntegration #FullStack #iOSAppDevelopment #iOSDeveloper #Kotlin #MobileAppDevelopmentConsultation #Swift #AIApp #AIAppDeveloper #BugFixing #CI/CD #CleanArchitecture #CrossPlatformDevelopment #FlutterDeveloper #FullStackDeveloper #Android #iOS #MobileAppDevelopment #Smartphone #JavaScript #Flutter #React Native #iOSDevelopment #Firebase #AndroidAppDevelopment #MobileAppDesign #WebDesign #APIIntegration #API #Swift
Mobile App Development
Android App Development
API Integration
iOS Development
Android
iOS
Android Smartphone
JavaScript
Flutter
React Native
Firebase
Mobile App Design
Web Design
API
Swift
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