I am a Full Stack Web & Mobile App Developer with expertise in Web Development, iOS & Android App Development (Top 3%), maintaining 100% Client Satisfaction on Upwork and successfully delivering hundreds of projects across industries.
I am a Top-Rated Plus Mobile App Developer specializing in Flutter, React Native, iOS (Swift), Android (Kotlin) and Full-Stack Application Development. I build AI-powered mobile apps, real-time video streaming platforms, SaaS products, MVPs and on-demand service applications with scalable backend architectures using Node.js, NestJS, Laravel and Firebase.
I have had the opportunity to work with numerous startups, scale-ups and enterprises, helping them design, develop, launch and scale high-performance mobile and web applications that work flawlessly across devices.
โ I Can Help You With:
- Mobile App Development with Web Admin Panel
- MVP Development & SaaS Application Development
- API Development & Third-Party Integrations
- Node.js / NestJS Backend for Mobile & Web Apps
- Laravel / PHP Backend Development
- Firebase Integration (Auth, Firestore, Cloud Functions)
- Payment Gateway Integration (Stripe, Razorpay, PayPal)
- Real-Time Chat, Notifications & WebSocket Integration
๐ก Having Expertise In:
- AI-Powered Mobile Applications
- Real-Time Video Streaming Apps
- Live Streaming & Video Sharing Platforms
- E-Learning & EdTech Applications
- E-Commerce & Marketplace Apps
- On-Demand Service Apps (Taxi, Food, Delivery, Booking)
- Chat & Social Networking Apps
- SaaS & Subscription-Based Platforms
- Gamified Mobile Applications
- AR/VR Mobile App Development
- IoT & BLE-Based Mobile Applications
๐ฏKey Milestones:
๐ Rewarded as ๐ ๐ง๐ข๐ฃ ๐ฅ๐๐ง๐๐ ๐ฃ๐๐จ๐ฆ ๐ by Upwork (๐ง๐ผ๐ฝ ๐ฏ%)
๐ 7000+ personal hours on Upwork and still counting
๐ 100000+ agency hours on Upwork and still counting
๐ 100% Job Success (Client Satisfaction Ratio)
๐ 500+ jobs completed successfully as an Agency
๐ฏ Checkout my portfolio of apps on Upwork: Over the past decade, I have honed my skills in developing a diverse array of iPhone and Android applications Development
โ Health and Fitness Apps
โ GPS/ Geo Location Apps
โ Trade Apps
โ Homeowner/Contractor App
โ Artificial Intelligence based Apps
โ Bluetooth / BLE Integration Apps
โ Food Delivery Apps
โ Nutrition Planning Apps
โ Restaurant Search Apps
โ Salon Booking Apps
โ Gym Booking Apps
โ Taxi Apps
โ AI Powered Apps
โ E-commerce Apps
โ Dating and TikTok Style Apps
โ Video Streaming, Voice Calling, Chat and Messaging Apps
โ Real Estate Apps
โ Driver Instructor Finding Application
โ Hotel and Travel Booking Apps
โ E-Learning Mobile Application
โ Wellness & Meditation Application
โ NDI's Industry Applications
๐ฏ Areas of Expertise
โ Mobile App Development: Swift, Objective C, Kotlin, Java, Jetpack
โ Cross-Platform App Development: Flutter (Dart), React Native
โ Backend Development: Node JS, Nest JS, Laravel, PHP, Express
โ Frontend Development: React JS, Next JS, Angular, HTML5, CSS3
โ API Development & Integrations: REST APIs, AWS Lambda, API Gateway
โ Databases & Cloud Storage: MySQL, MongoDB, Firebase, DynamoDB
โ Real-Time App Features: Socket IO, Firebase Real Time Database, Twilio
โ Payment Gateway Integration: Stripe, Razorpay, PayPal, Braintree
โ Maps & Location Services: Google Maps, Apple Map Kit, GPS Tracking
โ Version Control & Collaboration: GitHub, Bitbucket, GitLab
I specialize in no-code/low-code development and AI integrations, allowing you to launch faster while keeping costs low without compromising quality.
Additional Services that i am offering:
- 6 Months Free Maintenance once the apps goes live on apple store and Google play store
- Ownership/iP rights from the day one uploaded on the Client Github
- Regular Updates & Scrum meetings.
- Following Agile Scrum Methodology from day one
- Strictly adhering to the Apple Guidelines and Google Guidelines.
- Taking Complete responsibility of Deployment on both Apple store and Google Play store.
I specialize in no-code/low-code development and AI integrations, allowing you to launch faster while keeping costs low without compromising quality.
I work with tools like Bubble, FlutterFlow, Webflow and integrate powerful AI solutions using Claude, GPT and OpenAI APIs to build smart, automated systems.
๐น What I Do
- Full Stack Web & Mobile App Development
- No-Code / Low-Code Development (Bubble, FlutterFlow, Webflow)
- AI App Development & Integration (Claude AI, GPT-4/5, OpenAI API, Chatbots, Automation)
- SaaS Application Development (Subscription Models, Multi-Tenant Systems)
- API Integration (Payment gateways, third-party services)
- Dashboard & Admin Panel Development
- Workflow Automation (Zapier, Make, AI Automation Systems))
- UI/UX Design (Figma)
๐ Letโs start with a FREE 15โ30 minute consultation to discuss your project and define the best approach.
Contact us today to discuss your projectย requirements.
Flutter
iOS Development
Smartphone
User Profile Creation
Android App Development
iOS
Mobile App Development
Chat & Messaging Software
User Authentication
Hybrid App Development
In-App Purchases
Web Development
React Native
Android
AI Chatbot
React
JavaScript
iPad App Development
API
API Integration
Marcos M.
San Francisco, California
$75/hr
4.9
380 jobs
Have an app idea but not sure where to start?
A few years ago, I was sitting exactly where many of my clients are today: trying to turn an idea into an app. After years of mistakes and learning to code, I ended up building SchooLinks, which grew into an Inc. 5000 company and raised over $90 million.
Since then, I focus on building apps for founders with no technical background.
People who have identified a problem that an app could solve, but they don't know how to build it. They have the vision, but they just need someone to help them bring it to life!
These are the results my clients have gotten:
โข $350M+ raised by clients
โข 2M+ users across products built
โข 10K+ five-star reviews across products built
โข Top 1% in App Design & Development on Upwork
Book a consultation with me today! Iโll save you months of frustration by helping you understand the ins and outs of bringing an app to life: How much it costs, how long it takes, whatโs the process and more.
The apps Iโve built usually come in the form of: SaaS platforms, internal platforms, Mobile & web apps, Marketplace apps.
Trusted By: Harvard, Samsung, Indeed, Yamaha, University of South Florida, and more.
Technologies: OpenAI, Claude, Gemini, Flutter, Node.js, Angular, AWS, MongoDB, Figma
If youโre serious about building your app the right way, letโs talk!
Mobile App Design
Mobile App Redesign
UI/UX Prototyping
Android
iOS
Web Application
Mobile App Development
Front-End Development
UX & UI
User Experience Design
iOS Development
Android App Development
Software Development
JavaScript
User Authentication
Dhaval S.
Ahmedabad, India
$25/hr
4.8
597 jobs
I am the agency owner of Nyusoft Solutions. I am handling Project Management, Project scope, Guiding team, How to follow Agile methodology and features requested by client in project scope.
๐ฅ๐ฅ๐ฅ TOP-RATED PLUS FREELANCER ๐ฅ๐ฅ๐ฅ
๐ฅ๐ฅ๐ฅ 100% Client Satisfaction๐ฅ๐ฅ๐ฅ
๐ฅ๐ฅ๐ฅ AI Agent and Automation Expert๐ฅ๐ฅ๐ฅ
๐ฅ๐ฅ๐ฅ Industry Expertise๐ฅ๐ฅ๐ฅ
๐ฅ๐ฅ๐ฅ Top 1% Talent on Upwork๐ฅ๐ฅ๐ฅ
"5๐Ratings on Clutch"
A Proud Member of:
โ BNI
โ JITO
Why you should choose me:
โ-----------------------------
๐ Agile Approach
๐ Daily / Weekly Call for project status
๐ 100% transparency, no unrealistic commitment.
๐ No Advance Payment
๐ UNLIMITED DESIGN REVISION for your utmost satisfaction
๐ 6 months of FREE Support.
Industries We Serve
โ-----------------------------
o Edtech
o Fintech
o Realtech
o Healthcare
o Fitness / Wellness
o Sports
o Travel
o Entertainment
o Furniture
Solutions We Provide
โ-----------------------------
o Agent AI Services (Claude, OpenClaw etc.)
o AI-Powered Automation
o Machine Learning Solutions (ML)
o AI Development Services
o NLP Development
o LLM Integrations
o Deep Learning Solutions
o AI Chatbots & Virtual Assistants
o Image, Video & OCR Solutions
o SaaS Product Development
o Mobile Apps Development
o Ui/UX Implementation
o AWS DevOps Development
Technologies We Serve in Mobile apps(IOS and Android) and Website/Web applications and Software development
---------------------------------------------------------------------------------------------------------------
- Full Stack and MERN Stack Development
o React JS
o Node JS
o NextJS / NestJS
o Python / Django
o Node JS
o Vue JS
o Laravel
- Mobile Apps Development
o React Native
o Flutter
๐ฏ Areas of Expertise
โ Mobile App Development: Swift, Objective C, Kotlin, Java, Jetpack
โ Cross-Platform App Development: Flutter (Dart), React Native
โ Backend Development: Node JS, Nest JS, Laravel, PHP, Express
โ Frontend Development: React JS, Next JS, Angular, HTML5, CSS3
โ API Development & Integrations: REST APIs, AWS Lambda, API Gateway
โ Databases & Cloud Storage: MySQL, MongoDB, Firebase, DynamoDB
โ Real-Time App Features: Socket IO, Firebase Real Time Database, Twilio
โ Payment Gateway Integration: Stripe, Razorpay, PayPal, Braintree
โ Maps & Location Services: Google Maps, Apple Map Kit, GPS Tracking
โ Version Control & Collaboration: GitHub, Bitbucket, GitLab
- AI/ML/ChatGPT integration with platforms(Web and mobile applications)
"We create things that make a difference, not just to get a job done."
I appreciate that you have taken a step to review my profile.
Regards,
Dhaval Shah ( Founder & CEO)
Nyusoft Solutions LLP
Artificial Intelligence
AI Agent Development
React Native
PHP
Mobile App Development
React
Node.js
Laravel
MERN Stack
Python
Software Development
Web Development
Web Design
AI App Development
OpenAI API
AI Mobile App Development
AI Chatbot
iOS Development
Android App Development
IT Consultation
Vikram S.
Mohali, India
$15/hr
4.9
42 jobs
โHello, I am a Mobile App Developer specializing in building scalable, high-performance iOS and Android applications with modern UI/UX, clean architecture, and seamless user experiences. I help startups, businesses, and enterprises transform ideas into fully functional mobile products using Flutter, React Native, Swift, Kotlin, Firebase, and cloud-based technologies.
With strong experience in cross-platform and native mobile development, I develop mobile applications that are visually polished, technically reliable, and optimized for long-term scalability. My focus is not only on writing clean code, but also on creating intuitive user experiences that improve engagement, retention, and overall business growth.
I specialize in:
โข Mobile App Development
โข iOS App Development
โข Android App Development
โข Flutter Development
โข React Native Development
โข UI/UX Design for Mobile Apps
โข SaaS and Startup MVP Development
โข AI-Powered Mobile Applications
โข Firebase & Cloud Integrations
โข API Development & Third-Party Integrations
โข Subscription & Payment Systems
โข Real-Time Features & Notifications
I build a wide range of mobile applications including:
โข Booking & Appointment Apps
โข Marketplace Platforms
โข AI Chat & Productivity Apps
โข Healthcare & Telemedicine Apps
โข Education & E-Learning Platforms
โข Logistics & Transportation Apps
โข Fitness & Wellness Applications
โข Social Networking & Community Apps
โข Ecommerce Mobile Apps
โข On-Demand Service Platforms
My technical expertise includes Flutter, Dart, Swift, Kotlin, Java, React Native, Firebase, Node.js, REST APIs, GraphQL, Google Maps API, Stripe, PayPal, RevenueCat, OpenAI API, Push Notifications, Geolocation Systems, and cloud infrastructure solutions.
I have experience building mobile apps with:
โข Authentication systems
โข Subscription models
โข Real-time chat and notifications
โข Payment gateways
โข GPS and route tracking
โข AI integrations and automation
โข Admin dashboards
โข Scalable backend architecture
โข Analytics and performance optimization
I strongly focus on performance, scalability, and user experience throughout the entire development lifecycle. Every application is developed with clean architecture, responsive design, optimized performance, and maintainable code standards to ensure future scalability and smooth deployment.
My development process includes:
โข Product strategy and planning
โข Wireframing and UI/UX optimization
โข Agile mobile app development
โข API and backend integrations
โข QA testing and performance improvements
โข App Store & Google Play deployment
โข Ongoing maintenance and feature expansion
I value clear communication, realistic timelines, and long-term collaboration. Whether you need an MVP for a startup, a scalable SaaS platform, or a feature-rich enterprise application, I can help bring your vision to life with modern mobile technologies and user-focused development.
My goal is to build mobile applications that are not only technically strong, but also intuitive, scalable, and impactful for users and businesses alike.
Thanks,
Vikram
Mobile App Development
iOS Development
Android App Development
Flutter
Kotlin
Swift
Native App Development
API Integration
Firebase
React Native
App Store Optimization
App Design
Figma
FlutterFlow
AI Agent Development
AI App Development
Native App
Hybrid App
Mobile App Redesign
App Feature Development
Asim Z.
Denver, Colorado
$35/hr
4.7
100 jobs
Hi, Iโm Asim Zaidi, a Senior Full Stack Developer with 20+ years of experience building scalable web applications, SaaS platforms, AI-powered systems, and enterprise software.
Iโve worked with startups and Fortune 500 companies, including teams associated with Silicon Valley, Disney, and Zulily, designing and developing software used by thousands of users. I specialize in delivering reliable, scalable solutions that help businesses launch products, automate processes, and modernize their technology platforms.
Core Expertise
โข Full Stack Web Development
โข AI Integration & SaaS Platforms
โข Odoo ERP Development & Customization
โข Enterprise Web Applications
โข Startup MVP Development
โข API Development & System Integration
โข E-commerce Platforms
โข Mobile App Development (iOS & Android)
Technologies I Work With
Backend Development
Python, PHP, Node.js, Laravel, Django, REST APIs
Frontend Development
React, Angular, Vue.js, JavaScript, TypeScript, HTML5, CSS3
ERP Development
Odoo Development, Odoo Customization, Business Automation
Databases
MySQL, PostgreSQL, MongoDB, Redis, Elasticsearch
Cloud & Infrastructure
AWS, Docker, DevOps
Clients hire me because I provide:
โข Strong technical leadership and system architecture
โข Clean, scalable code
โข Clear communication and reliable delivery
โข Solutions focused on real business results
I also provide staff augmentation and dedicated development teams for companies that need to scale engineering capacity.
If youโre looking for a Senior Full Stack Developer, Odoo developer, SaaS engineer, or AI developer, Iโd be happy to discuss your project.
App Development
Odoo
Odoo Administration
Odoo Development
ERP Software
ERPNext
Enterprise Architecture
Enterprise Software
Enterprise Software Development
AI Development
CRM Development
CMS Development
API Development
Web Development
Mobile App Development
WordPress
Magento
Ecommerce
Python
PHP
Andrey C.
Los Angeles, California
$35/hr
4.8
97 jobs
๐ ท๐ ด๐ ๐ Hi! Iโm a veteran full stack developer, mobile app developer, and team lead leading a senior long-term team capable of taking products from idea โ launch โ scale โ maintenance.
Iโve been in professional software development for 25+ years and mobile app development for 17+ years, delivering scalable iOS Development, Android App Development, Flutter, React Native, and backend-driven platforms across startups, SaaS products, enterprises, and high-growth mobile ecosystems. Clients usually come to us when they need more than just coding - they need a technical partner who understands architecture, business logic, scalability, monetization, and long-term product growth.
As a mobile application developer, ios developer, android developer, flutter developer, and full stack developer, I specialize in building high-performance native and cross-platform mobile apps used by millions of users worldwide.
I work with native iOS development using Swift, SwiftUI, UIKit, and Objective-C, native Android development with Kotlin and Java, as well as Flutter, React Native, and hybrid app development for scalable cross-platform delivery. Over the years, Iโve helped build 700+ apps across fintech, healthcare, social networking, education, entertainment, e-commerce, IoT, and enterprise SaaS.
My experience covers the full mobile app development lifecycle - system architecture, UI/UX implementation, backend development, API Integration, DevOps, deployment, scaling, optimization, and long-term product evolution.
๐ Why Clients Choose Me
โ๏ธ 25+ years as a full stack developer and software architectโจ
โ๏ธ 17+ years in mobile app developmentโจ
โ๏ธ 700+ mobile apps delivered across iOS, Android, Flutter & React Nativeโจ
โ๏ธ Expertise in native app development, hybrid app development, and scalable backend systemsโจ
โ๏ธ Reduced crash rates by up to 70% and improved app performance by 50% on production appsโจ
โ๏ธ Built mobile platforms used by 5M+ users worldwideโจ
โ๏ธ Strong experience with Mobile App Improvement, Mobile App Bug Fix, and modernization projectsโจ
โ๏ธ Long-term experience with startups, SaaS companies, enterprises, and Fortune 500 clientsโจ
โ๏ธ Full-cycle delivery: architecture โ development โ deployment โ scaling โ support
๐ฑ Native iOS & Android Development
โข Native iOS Development with Swift, SwiftUI, UIKit, Combine, Objective-C
โข Native Android App Development with Kotlin, Java, Jetpack Compose
โข Smartphone app optimization for performance, UX, and scalability
โข Clean Architecture, MVVM, VIPER, modular app structures
โข Device integrations: BLE, GPS, biometrics, camera, sensors, HealthKit, Google Fit
โข App Store & Google Play deployment pipelines
โข Multi-language apps with localization and accessibility support
โข Advanced performance optimization and memory management
๐ Cross-Platform & Hybrid App Development
โข Flutter developer expertise for scalable cross-platform products
โข React Native development with custom native module integrations
โข Kotlin Multiplatform Mobile (KMM/KMP)
โข Shared business logic across iOS and Android
โข Adaptive UI systems and responsive mobile layouts
โข Cross-platform architectures reducing development time by 40โ60%
๐ง Backend, API Integration & Infrastructure
โข REST API and GraphQL API Integration
โข Firebase, Node.js, PHP, and scalable backend services
โข Authentication systems, caching, offline sync, token management
โข SQLite, Room, Realm, Core Data
โข Push notifications: FCM, APNS, OneSignal
โข Real-time chat, geolocation systems, dashboards, and live data platforms
โข Backend-connected mobile ecosystems with scalable cloud infrastructure
โ๏ธ DevOps, CI/CD & Delivery
โข Fastlane, GitHub Actions, Bitrise, Firebase App Distribution
โข Automated testing and deployment pipelines
โข Beta testing, crash analytics, staged rollouts
โข CI/CD optimization for faster and safer release cycles
โข AWS and scalable cloud deployment workflows
๐ Analytics & Monetization
โข Firebase Analytics, Mixpanel, Amplitude, Google Analytics
โข In-app purchases, subscriptions, AdMob, Facebook Ads
โข Retention optimization and funnel analytics
โข Data-driven product iteration and growth optimization
๐ Advanced SDK & Hardware Integrations
โข AVFoundation, CameraX, Core Bluetooth, Core Motion
โข Stripe, Twilio, Agora, Sendbird, Mapbox, OpenCV
โข IoT dashboards, BLE integrations, voice/video systems
โข Camera-heavy and sensor-based mobile applications
๐ Industries Served
โข Fintech & Banking
โข Healthcare & Fitness
โข E-commerce & Retail
โข Smart Home & IoT
โข Education & E-learning
โข Social Networking
โข Travel & Hospitality
โข Entertainment & Media
โข SaaS & Enterprise Platforms
โ Letโs Build a Mobile Product That Scales!
Mobile App Development
iOS Development
Android App Development
iPad App Development
Android
iOS
Smartphone
Flutter
Swift
Objective-C
Firebase
Apple Xcode
In-App Purchases
API Integration
Hybrid App Development
User Authentication
User Profile Creation
JavaScript
React Native
Kotlin
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