๐ Senior Full-Stack Developer | AI Automation Specialist | Web, Mobile & Cloud Solutions
With 20 years in software engineering, I help businesses turn complex ideas into reliable, scalable web applications, mobile apps, and AI-powered automation systems. As Director of Oops Info Solutions โ an ISO-certified software company with teams in India and the USA โ I've architected and delivered hundreds of projects across web, mobile, cloud, and AI.
I pair deep hands-on engineering with the ability to lead a project end to end: requirements, architecture, development, deployment, and long-term support.
What I can help you with:
๐ป Full-Stack Web Development
โข React.js, Next.js, Node.js, Express.js
โข PHP, Laravel, WordPress, Shopify, MERN stack
โข JavaScript, TypeScript, REST APIs & integrations
โข Responsive, modern UI development
๐ฑ Mobile App Development
โข React Native & Flutter (cross-platform)
โข Native Android & iOS
โข Appโbackend integration and app store publishing
๐ค AI & Automation
โข OpenAI & Claude API integration
โข AI agents and assistants
โข n8n workflow automation
โข Business process & lead-generation automation
โ๏ธ Cloud & Backend
โข AWS deployment and architecture
โข PostgreSQL, MySQL, MongoDB
โข Secure authentication & scalable system design
โข Payment gateway integration (Stripe, PayPal)
Why clients choose me:
โ 20 years of proven delivery across industries
โ Backed by a full professional team when projects scale
โ Clear communication and reliable timelines
โ Clean, maintainable, well-architected code
โ Focus on long-term partnerships, not quick fixes
Whether you need a complete web platform, a mobile app, AI automation, or a technical lead who can own the entire project โ let's talk.
React
MySQL
PHP
Laravel
React Native
Node.js
Android App Development
iOS Development
HTML
CSS
Next.js
WordPress
Flutter
AWS Development
Python
AI Agent Development
API Integration
PostgreSQL
Rexona K.
Jessore, Bangladesh
$15/hr
5.0
104 jobs
Are you looking for a Google Play Console expert to help you pass the mandatory closed testing phase? I specialize in providing the 12 testers and 14 days of continuous engagement required for new developer accounts to gain Production Access.
With a 100% success rate, I help developers move from closed beta to a live Play Store release. I don't use bots or emulators; I provide authentic manual app testing using a fleet of 12+ real Android devices (Samsung, Pixel, Xiaomi, etc.). This ensures your Google Play production access application is approved without flags or policy rejections.
๐ My Google Play Testing Services:
โ Closed Testing Management: Complete handling of the 14-day testing period to satisfy Google Playโs engagement requirements.
โ Production Access Strategy: Expert guidance on the Google Play Console application process to ensure a 100% approval rate.
โ Real-Device QA Testing: Professional mobile app testing on 12+ physical devices to provide authentic usage data and performance metrics.
โ Bug Reporting & Analysis: Detailed QA audits to identify UI/UX glitches, crashes, and functional bugs before your public launch.
โ Policy Compliance: Pre-submission reviews to ensure your app follows the latest Google Play Developer Program Policies.
๐ ๏ธ Devices & Tools:
โ Physical Devices: 12+ Real Android phones (Android 10 to Android 14).
โ Platforms: Google Play Console, Firebase App Distribution, Jira.
โ Testing Types: Manual Testing, Usability Testing, Regression Testing, and Beta Testing.
I am committed to clear communication, high-quality app QA, and fast turnarounds. Letโs get your app through closed testing and ready for production!
Contact me today to successfully launch your app on the Google Play Store!
Alpha Testing
Beta Testing
Quality Assurance
App Development
Mobile App Development
Software QA
Functional Testing
Usability Testing
Android App
Smartphone
Mobile App Testing
Mobile Device
Mobile QA
QA Testing
Customer Support
Malik Noman T.
Faisalabad, Pakistan
$15/hr
5.0
20 jobs
๐ Hi, I'm Noman, Mobile App Developer who takes your app from idea (or AI prototype) to LIVE on the App Store & Google Play.
Your app is not done until it's LIVE and in your users' hands. That's exactly what I deliver.
I help startups, founders, and businesses build fast, scalable, production-ready mobile apps with Flutter & React Native. I also specialize in taking AI-generated apps (Rork, Replit, Lovable, Bolt) and scaling, redesigning, and rebuilding them into real, stable apps that actually get published.
๐ Top Rated | 100% Job Success | 5+ Years Experience
๐ WHAT I CAN HELP YOU WITH
โ Full App Launch from code to LIVE on Google Play & App Store
โ Flutter Mobile App Development (Android & iOS)
โ React Native Mobile Apps
โ Scale & Redesign AI-Generated Apps (Rork, Replit, Lovable, Bolt)
โ Convert AI Prototypes into Real, Published Mobile Apps
โ Fix Bugs, Clean Up AI-Generated Code & Improve Performance
โ Backend Integration (Firebase / Supabase / REST APIs)
โ UI Implementation from Figma / Designs
โ App Store Rejections Fixed & Resubmission Handled
๐ก WHY LIVE MATTERS
Many developers hand you code. I hand you a published app store listing, screenshots, app signing, review process, rejection fixes everything handled until your app is live and downloadable.
Built an app with AI and it's stuck at prototype stage? I'll turn it into a real app your users can actually install.
๐ง TECH STACK
๐ฑ Mobile: Flutter ยท React Native ยท Rork AI ยท Replit AI
๐ป Backend: Firebase ยท Supabase ยท REST APIs
๐ง Tools: Git ยท Android Studio ยท Xcode ยท App Store Connect ยท Google Play Console
๐ฑ APPS I BUILD, SCALE & LAUNCH
Startup MVP Apps
AI-Generated Apps (scaling, redesign & production launch)
Business & Admin Apps
Booking & Service Apps
Utility & Productivity Apps
โญ WHAT YOU GET
โ A LIVE app on the stores not just source code
โ Clean, scalable code (even from messy AI codebases)
โ Clear communication & on-time delivery
โ Long-term support after launch
๐ฉ READY TO GO LIVE?
Whether you have a new idea, a half-built app, or an AI prototype that's stuck
send me a message. I'll review your project and give you a clear, honest plan to build, fix, and launch your app successfully.
Android App Development
iOS Development
Flutter
Node.js
Firebase
API Development
API Integration
App Development
Artificial Intelligence
ExpressJS
App Store Optimization
Web & Mobile Design Consultation
Hybrid App Development
FlutterFlow
AI App Development
App Design
App Store
Apple Xcode
App Store Upload
App Feature Development
Marcos M.
San Francisco, California
$75/hr
4.9
386 jobs
Have an app idea, an MVP to launch, or a vibe coding/AI prototype stuck in dev? Top 1% Upwork developer: My clients raised $350M+, hit 2M+ users, and earned 10K+ 5-star reviews. For 10+ years, Iโve helped entrepreneurs & business owners turn early concepts into scalable, high-revenue apps.
Who I Help
I speak founder and business, not just technical jargon. I am the right partner if you need to:
โข Fix & rescue a broken, "vibe-coded," or unfinished AI prototype.
โข Launch a lean MVP to validate your app idea quickly without overspending.
โข Scale an existing app or build custom internal software to streamline operations for your business.
Why Work With Me?
Iโve walked in your shoes. Over a decade ago, I was a non-technical founder hiring freelancers on Upwork. I made every costly mistake in the bookโchoosing the wrong tech stack, making bad hires, and skipping early user validation.
Through two years of trial and error, I overcame those hurdles to launch SchooLinks (now an Inc. 5000 edtech platform with $90M+ raised). Later, as VP of Tech for UC Berkeleyโs Entrepreneurship Association, I discovered a true passion for mentoring founders. Today, I dedicate my career to helping entrepreneurs & business owners launch web and mobile apps while bypassing those exact expensive missteps.
Track Record & Achievements:
โข $350M+ Raised: Total funding secured by client apps built under my direction
โข 2M+ Active Users: Scale achieved across apps Iโve designed and developed
โข 10K+ 5-Star Reviews: User satisfaction on launched apps
โข Top 1% Talent: Recognized as a premier App Designer & Developer on Upwork
โข Trusted by Top Brands: Launched projects for Harvard, Samsung, Indeed, Yamaha, and USF
Core Tech Stack & Tools
โข AI-Driven Development: Cursor, Claude Code, OpenAI, Gemini, Lovable
โข Frontend & Mobile: Flutter, Angular, Figma (UI/UX)
โข Backend & Cloud: Node.js, Supabase, AWS, MongoDB
Letโs Build Smart
If this resonates with you, letโs talk. I offer strategy consultations where weโll review your project and build a clear, actionable execution plan tailored to your goals.
Reach out today to save months of frustration, cut thousands in wasted dev spend, and validate your app idea the lean way.
Mobile App
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
App Design
AI App Development
Igor Z.
Espoo, Finland
$30/hr
5.0
31 jobs
Full-stack remote developer and Product Owner with over 25 years of experience, holding a Masterโs degree in Mechanical Engineering (Shipbuilding & Ship Repair). Career spans from 1993 AutoCAD automation (AutoLISP) and C/C++ to modern cloud architectures. Currently leading a multi-tenant game-performance estimation API at UL LLC used globally by PC manufacturers. Expert in Google Cloud Platform, Spring Boot, and React/Angular. Available 25+ hours/week for side projects.
Google App Engine
Java
Python
XMPP
Erlang
Amazon Web Services
Node.js
iOS
Spring Boot
Angular 10
Flutter
Mobile App Development
Android
Riya S.
Nagal, India
$18/hr
5.0
13 jobs
๐ ๐๐ข๐ญ๐ก 7+ ๐ฒ๐๐๐ซ๐ฌ ๐จ๐ ๐๐จ๐๐ข๐ฅ๐ ๐๐ฉ๐ฉ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ ๐๐ฑ๐ฉ๐๐ซ๐ข๐๐ง๐๐, ๐ ๐ก๐๐ฅ๐ฉ ๐ฌ๐ญ๐๐ซ๐ญ๐ฎ๐ฉ๐ฌ ๐๐ง๐ ๐๐ฎ๐ฌ๐ข๐ง๐๐ฌ๐ฌ๐๐ฌ ๐๐ฎ๐ข๐ฅ๐ ๐ฌ๐๐๐ฅ๐๐๐ฅ๐, ๐ฉ๐ซ๐๐ฆ๐ข๐ฎ๐ฆ ๐๐ง๐ ๐ฉ๐จ๐ฅ๐ข๐ฌ๐ก๐๐ ๐ฆ๐จ๐๐ข๐ฅ๐ ๐๐ฉ๐ฉ๐ฅ๐ข๐๐๐ญ๐ข๐จ๐ง๐ฌ, SaaS platforms, and AI-powered solutions. I focus on clean, maintainable code, reliable back end architecture, and seamless user experiences that turn ideas into victorious products.
- ๐๐ก๐ฒ ๐ ๐๐ฆ ๐ฉ๐๐ซ๐๐๐๐ญ ๐๐ข๐ญ:
I combine strong technical expertise with a product-focused mindset to build scalable, high-quality solutions that align with your business goals. From planning and development to deployment and ongoing support.
๐ป ๐๐ง๐๐ฎ๐ฌ๐ญ๐ซ๐ข๐๐ฌ ๐'๐ฏ๐ ๐๐จ๐ซ๐ค๐๐ ๐๐ข๐ญ๐ก
โข FinTech
โข Health & Fitness
โข E-commerce
โข Education (EdTech)
โข On-Demand Platforms
โข AI-Powered Applications
โข BLE & IoT/Hardware Solutions
โข Social Networking Apps
โข Sports & Fitness Applications
โข SaaS Platforms
๐ My Core Expertise
โข๐๐จ๐๐ข๐ฅ๐ ๐๐ฉ๐ฉ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ: Flutter, React Native, iOS, Android
โข๐ ๐ซ๐จ๐ง๐ญ๐๐ง๐ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ: React.js, Next.js, TypeScript, JavaScript
โข๐๐๐๐ค๐๐ง๐ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ: Node.js, NestJS, Express.js, FastAPI
โขDatabase Design & Architecture: PostgreSQL, MySQL, MongoDB, Firebase Firestore, Supabase
โข๐๐ฅ๐จ๐ฎ๐ & ๐๐๐ซ๐ฏ๐๐ซ ๐๐ง๐๐ซ๐๐ฌ๐ญ๐ซ๐ฎ๐๐ญ๐ฎ๐ซ๐: AWS, Google Cloud Platform (GCP), Microsoft Azure, Docker, CI/CD
โข๐๐๐ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ & ๐๐ง๐ญ๐๐ ๐ซ๐๐ญ๐ข๐จ๐ง๐ฌ: REST APIs, GraphQL, Third-Party APIs, Payment Gateways, Authentication, Maps, Push Notifications
โข๐๐ & ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง: OpenAI, Gemini, Claude, LangChain, AI Chatbots, RAG, AI Agents, Workflow Automation
โข๐๐จ-๐๐จ๐๐ & ๐๐จ๐ฐ-๐๐จ๐๐ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ: Bubble, FlutterFlow, Lovable, Replit, Base44, Firebase Studio
๐๐ซ๐ข๐ง๐ ๐ข๐ง๐ ๐ฒ๐จ๐ฎ๐ซ ๐ข๐๐๐๐ฌ ๐ญ๐จ ๐ฅ๐ข๐๐ ๐ฐ๐ข๐ญ๐ก ๐ฆ๐จ๐๐๐ซ๐ง ๐ญ๐๐๐ก๐ง๐จ๐ฅ๐จ๐ ๐ฒ. ๐๐ฎ๐ฌ๐ญ๐จ๐ฆ ๐๐ฎ๐ฅ๐ฅ-๐ฌ๐ญ๐๐๐ค ๐ฆ๐จ๐๐ข๐ฅ๐ ๐๐ง๐ ๐ฐ๐๐ ๐๐ฉ๐ฉ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ ๐ญ๐๐ข๐ฅ๐จ๐ซ๐๐ ๐ญ๐จ ๐ฒ๐จ๐ฎ๐ซ ๐๐ฎ๐ฌ๐ข๐ง๐๐ฌ๐ฌ ๐ ๐จ๐๐ฅ๐ฌ.
Kotlin
SQL
Flutter
Swift
iOS Development
Node.js
PHP
RESTful API
Push Notifications
Hybrid App Development
iPad App Development
Mobile App Development
API Integration
In-App Purchases
React Native
AI Implementation
Android
iPhone
Android Smartphone
Dart
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Don't just take our word for it
โUpwork provides an umbrella-level of security. I can see a talentโs work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.โ
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Kim Darling
Emerald Tiger
โUpwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.โ
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David Merry
Kinetic Investments
โOur very specific requirements can be a challengeโWith Upwork, weโre able to access a bigger community to ensure the success of our projects.โ
KK
Katja Krohn
Summa Linguae
At A Glance: Google App Engine
Creating and maintaining an application within the Google App Engine infrastructure allows you to connect with consumers from around the world on a platform they know and trust. Google App Engineโs reliable service allows you to develop and run applications to put your business ahead, whether it specializes in the tech industry or is trying to broaden its reach. However, experience with Java, Python, Go, and PHP are required, in addition to an education in the many complex aspects of app development. Perhaps you have neither the time nor the skills to harness this advantageous engine yourself. The Google App Engine specialists and application developers on Upwork are here to take the burden off your shoulders by offering their highly-sought-after skills and unique experience to manage this vital task.
As freelancers, many of these experts have experimented in a wide range of professions and niches, enabling them to apply this vast knowledge and expertise to your project in the form of creative suggestions, specialized advice, and a sharp eye for bugs or technical issues. Their competitive rates make them the ideal choice for any project scale or budget, so you can receive the precise service you need. Their flexible schedules are designed to combat time zone differences and push you ahead with deadlines. With dozens of professionals to choose from on Upwork, youโre sure to find the application developer you need to create the next generation of app, or the specialist to offer their critical eye towards maintaining and improving your project.