Hire the Best Google App Engine Developers

Launched my own app successfully (SchooLinks, now an Inc 5000 company). Now I focus on helping you bring your app to life! • 2M+ users across products built, • $350M+ raised by clients, • Top 1% on Upwork globally. Book your consultation today to understand the ins and outs of bringing an app to life: How much it costs, how long it takes, what’s the process and more. After launching SchooLinks a few years ago and raising +90M USD with it, I now help: • Business owners struggling with manual processes, who are looking to streamline workflows • Entrepreneurs who found a gap in an industry, and are looking to disrupt it with an app The apps I’ve 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 you’re serious about building your app the right way, let’s talk!

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. ✅ 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 💡 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 🎯Key Milestones: 🚀 Rewarded as 🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 🏆 by Upwork (𝗧𝗼𝗽 𝟯%) 🚀 7000+ personal hours on Upwork and still counting 🚀 100000+ agency hours on Upwork and still counting 🚀 100% Job Success (Client Satisfaction Ratio) 🚀 500+ jobs completed successfully as an Agency 🎯 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 ✅ Health and Fitness Apps ✅ GPS/ Geo Location Apps ✅ Trade Apps ✅ Homeowner/Contractor App ✅ Artificial Intelligence based Apps ✅ Bluetooth / BLE Integration Apps ✅ Food Delivery Apps ✅ Nutrition Planning Apps ✅ Restaurant Search Apps ✅ Salon Booking Apps ✅ Gym Booking Apps ✅ Taxi Apps ✅ AI Powered Apps ✅ E-commerce Apps ✅ Dating and TikTok Style Apps ✅ Video Streaming, Voice Calling, Chat and Messaging Apps ✅ Real Estate Apps ✅ Driver Instructor Finding Application ✅ Hotel and Travel Booking Apps ✅ E-Learning Mobile Application ✅ Wellness & Meditation Application ✅ NDI's Industry Applications 🎯 Areas of Expertise ◉ Mobile App Development: Swift, Objective C, Kotlin, Java, Jetpack ◉ Cross-Platform App Development: Flutter (Dart), React Native ◉ Backend Development: Node JS, Nest JS, Laravel, PHP, Express ◉ Frontend Development: React JS, Next JS, Angular, HTML5, CSS3 ◉ API Development & Integrations: REST APIs, AWS Lambda, API Gateway ◉ Databases & Cloud Storage: MySQL, MongoDB, Firebase, DynamoDB ◉ Real-Time App Features: Socket IO, Firebase Real Time Database, Twilio ◉ Payment Gateway Integration: Stripe, Razorpay, PayPal, Braintree ◉ Maps & Location Services: Google Maps, Apple Map Kit, GPS Tracking ◉ 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. 🔹 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) 👉 Let’s start with a FREE 15–30 minute consultation to discuss your project and define the best approach. Contact us today to discuss your project requirements.

I help startups and businesses build AI-powered SaaS platforms, marketplaces, and automation systems that reduce manual work and scale operations fast. I build production-ready web and mobile applications by combining 19+ years of hands-on development experience with AI-powered tools like Claude—shipping faster without compromising code quality, architecture, or UX. I also specialize in transforming outdated web apps into modern, AI-driven platforms with a clean, maintainable architecture so you’re not dependent on developers. for every small change. You’ll be able to handle minor updates yourself using AI tools like Codex or Claude. If you're looking for someone who understands both technology AND business outcomes, you're in the right place. 🚀 Core Expertise: AI-powered SaaS platforms Marketplace development (buyer/seller/admin systems) Business process automation Scalable backend architecture Custom dashboards & admin panels 🧠 How I Help You Whether you're launching an MVP or scaling an existing product, I can help you: ✅ Build your SaaS product from scratch ✅ Automate repetitive workflows using AI ✅ Develop secure and scalable backend systems ✅ Create seamless web & mobile applications ✅ Improve performance and reduce operational costs ⚙️ Tech Stack (Only What Matters) Mobile Application Development: We develop hybrid / cross-platform mobile applications using React Native CLI / EXPO, REDUX, and Flutter / Dart. PWA/progressive web application (React.js). Web Application Development: Full-Stack Development, Front-End Development, Back-End Development. MVP Development. SaaS development, Multitenancy Product Development. E-commerce & Social Media Websites. Front End Development: TypeScript, React.js, React remix, vite.js, Next.js, Vue.js, Nuxt.js, Tailwind CSS Back-end Development: Python (Django / flask / FastAPI), PHP (CodeIgniter / Laravel), Node.js (typescript), Express.js, Nest.js, fastify, Strapi Database: MongoDB, MySQL, PostgreSQL, SQLite, Amazon Redshift, MariaDB, AWS DynamoDB Tools & Technologies: Bitbucket, GitHub, Firebase, Websocket, Redis, Nginx, EC2, S3, RDS, and EBS (Elastic Block Store). 🤝 Let’s Work Together If you’re looking for: A reliable long-term developer Someone who understands business, not just code Fast execution with scalable architecture 👉 Let’s discuss your project. My experience spans various domains, as outlined below. 1. Asset management system: a web application and mobile applications for iOS and Android. 2. Location live tracking and WiFi data scanning: a web application and mobile applications for iOS and Android. 3. Habit-tracking mobile application for iOS and Android. 4. Retreat and hotel booking engine: Web Application. 5. Ticket booking system with live seat selection: web application. 6. Shipping container calculator: web application. 7. Job board mobile application and web application. 8. SaaS for hospital care and home care companies: web application and mobile application. 9. Courses booking system: A web and mobile application along with a scheduling system. E-Learning PWA: Learning languages and mobile app development. 10. SaaS for project management and task management. 11. Boutique hotel and retreat website designing. 12. Equipment rental e-commerce website development. 13. Event posting and chat system: mobile application development. 14. Development of a Bible reading mobile application with a subscription system, supporting Apple and Google Pay. 15. Dummy flight and hotel ticket booking website for visa applications. 16. SaaS for creating surveys and managing user responses. 17. Real estate website development with MLS grid integration. 18. SaaS for companies managing work assignments, customer invoicing, and task calendars. 19. Food delivery Mobile application. 20. Facebook Graph API, Instagram Graph API, Twitter API, and LinkedIn API data management. 21. Dating website development. 22. Classified listing website development. 23. Travel deals e-commerce website 24. Grocery delivery mobile application development. 25. E-commerce website for selling fine wines. 26. CV and resume creation web application. 27. Employee payroll management web application. 28. Loan management system web application. 29. scheduling system for booking home inspection appointments along with a payment gateway and connection with gohighlevel CRM. 30. revenue management system – pulls data from QuickBooks, the Mercury API and the Stripe API and calculates the revenue. 31. car and bike parts / equipment / marketplace / vendor-buyer concept. 32. SMS marketing system that is connected with Twilio 33. Developing an MVP using AI-based web application builders such as Lovable, Replit, Claude AI, Claude-assisted development and Cursor AI. Please send a message OR invite me to your job so we can schedule a Zoom meeting.

𝐌𝐎𝐁𝐈𝐋𝐄 𝐀𝐏𝐏 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐄𝐑 iOS | Android | Flutter | React Native | AI Integration | Vibe Coding 🏆 Top Rated Plus on Upwork (Top 3%) 💯 100% Job Success 📈 9+ Years Experience 💬 Fluent English With 9+ years of experience, I specialize in designing and developing innovative, high-performance mobile apps for iOS, Android, and cross-platform ecosystems. I build intelligent, scalable, and user-centric solutions that integrate AI, ChatGPT, and modern technologies to create seamless, next-generation digital experiences. ⭐ 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 ✔️ Top Rated Plus on Upwork — Top 3% of freelancers globally ✔️ 35,000+ hours worked | 400+ projects completed ✔️ 100% Job Success Score ✔️ 86% long-term repeat clients ✔️ Fluent English — strong communication and agile delivery mindset ✔️ End-to-end development: from wireframe to App/Play Store launch and beyond ✔️ Post-launch support, updates, and performance monitoring 📱 𝗠𝗢𝗕𝗜𝗟𝗘 𝗔𝗣𝗣 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 • 𝗡𝗮𝘁𝗶𝘃𝗲 𝗶𝗢𝗦: Swift, SwiftUI, Objective-C, Xcode • 𝗡𝗮𝘁𝗶𝘃𝗲 𝗔𝗻𝗱𝗿𝗼𝗶𝗱: Kotlin, Java, Android Studio • 𝗖𝗿𝗼𝘀𝘀-𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺: Flutter, FlutterFlow, React Native, Dart • REST API & third-party API integration (Payment gateways, Social login, Maps, etc.) • Firebase integration (Authentication, Firestore, Push Notifications, Analytics) • Clean architecture (MVC, MVVM, MVP) & scalable code practices • UI/UX focused development with pixel-perfect design implementation • App performance optimization & debugging • Version control using Git (GitHub, GitLab, Bitbucket) • CI/CD setup & deployment (TestFlight, App Store, Play Store) • Agile development approach with strong communication and collaboration skills ⚙️ 𝗡𝗢-𝗖𝗢𝗗𝗘 / 𝗟𝗢𝗪-𝗖𝗢𝗗𝗘 𝗣𝗟𝗔𝗧𝗙𝗢𝗥𝗠𝗦 • AI-Powered Builders: Lovable.AI, Bolt.new, Cursor, v0 by Vercel, Replit, Copilot, Claude/Anthropic • App Builders: FlutterFlow, Bubble, Glide, Adalo • Automation: Zapier, Make (Integromat), n8n ☁️ 𝗕𝗔𝗖𝗞𝗘𝗡𝗗 & 𝗖𝗟𝗢𝗨𝗗 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦 • Firebase: Firestore, Realtime DB, Auth, Storage, Cloud Functions • AWS: EC2, Lambda, S3, Amplify, Lightsail • GCP | Microsoft Azure | Supabase | Vercel | Hostinger 🗄️ 𝗗𝗔𝗧𝗔𝗕𝗔𝗦𝗘𝗦 Firestore | MySQL | PostgreSQL | MongoDB | SQLite | Realm | Core Data | Supabase 🤖 𝗔𝗜 & 𝗔𝗨𝗧𝗢𝗠𝗔𝗧𝗜𝗢𝗡 • ChatGPT API & OpenAI Integration • Natural Language Processing (NLP) • Voice & Speech AI • Predictive Analytics 🎨 𝗨𝗜/𝗨𝗫 𝗗𝗘𝗦𝗜𝗚𝗡 Figma | Sketch | Adobe XD | InVision | SwiftUI | Jetpack Compose | Flutter Widgets | Material UI 🔑 𝗞𝗘𝗬 𝗙𝗘𝗔𝗧𝗨𝗥𝗘𝗦 & 𝗜𝗡𝗧𝗘𝗚𝗥𝗔𝗧𝗜𝗢𝗡𝗦 ✔️ Secure User Authentication & Social Logins (Google, Apple, Facebook, Twitter, LinkedIn) ✔️ Payment Gateways: Stripe, PayPal, Razorpay, Apple Pay, Plaid, In-App Purchases & Subscriptions ✔️ Real-Time Chat & Messaging (Twilio API, Firebase Chat) ✔️ Push Notifications | Video Calling | WebRTC ✔️ Maps & Geolocation: MapKit, Mapbox, Google Maps ✔️ Health & Fitness: HealthKit, Google Fit ✔️ Analytics: Firebase Analytics, Mixpanel, Crashlytics, Google Analytics ✔️ QA & Testing: Unit Testing, Integration Testing, Regression Testing ✔️ Project Tools: Git, GitHub, Bitbucket, JIRA, Trello, Asana 🌍𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦 𝗦𝗘𝗥𝗩𝗘𝗗 E-Commerce | Fintech & Banking | Health & Fitness | Social Networking & Dating | On-Demand Services | Food Delivery | Ride Booking | Real Estate | SaaS | Education & E-Learning | Media & Entertainment | Streaming & Audio | Healthcare | Logistics & Transport | Marketplace | Travel & Navigation | Wellness & Coaching | Legal Services | Event & Booking | Automotive | Fashion & Lifestyle | Hospitality 🔍 KEYWORDS Mobile App Developer · iOS App Developer · Android App Developer · Flutter Developer · React Native Developer · FlutterFlow Developer · Swift Developer · Kotlin Developer · Full Stack Developer · Web Application Developer · SaaS Developer · MERN Stack Developer · Firebase Developer · AWS Developer · Node.js Developer · React.js Developer · Next.js Developer · API Integration · ChatGPT Integration · AI App Developer · Lovable.AI · Bolt.new · No-Code Developer · Low-Code Developer · FlutterFlow · Bubble · Webflow · WordPress Developer · WooCommerce · Shopify · Strapi · Contentful · CMS Development · Plugin Development · Theme Development · Fintech App Developer · E-Commerce App Developer · Dating App Developer · Ride Booking App Developer · On-Demand App Developer · Cross-Platform App Developer · RESTful API · GraphQL · TypeScript · Supabase · Payment Gateway Integration · In-App Purchases · Push Notifications · HealthKit · MapKit · Mapbox · Alamofire · Twilio · Google Analytics · QA Testing · Unit Testing · Regression Testing · Figma · UI/UX Design

I'm a passionate developer with 15 years of experience and 10 years as a successful Upwork freelancer. I wear two hats: as a skilled developer, I excel in crafting custom web applications, WordPress websites, and tackling complex challenges. As a Google Helper (Top Contributor) I'm known for my collaborative spirit and ability to explain technical concepts clearly. My expertise spans both backend and frontend development, and I'm proficient in various technologies to deliver the perfect solution for your needs. Highlights: - I work for long-term: my last client was a Norway company developing skill assessment system for governments and education. - Delivered 50+ successful WordPress projects: Partnering with designers and architects, I've crafted high-performing websites that drive results. - SEO expertise: I've conducted and implemented numerous SEO audits and fixes, ensuring your website ranks better in search engines. - Cloud infrastructure: Skilled in setting up and managing systems on Google Cloud and AWS, including email servers, websites, and containerized applications. - Custom solutions: Developed unique solutions like a Fedora disk image for Google Cloud, an ID verification system with AWS AI, WordPress plugins for specific needs, and microphone volume indicator (a complex achievement!), and video conferencing apps using WebM format. - Communication & collaboration: Proven experience leading a development team (3 developers) and fostering a positive communication style with clients. - Security focus: I've proactively identified and reported security vulnerabilities in websites and systems, and even hardened the security of a client Chromium-based browser with C++ code. - Version control mastery: Actively contribute to projects through Pull Requests, code reviews, and using both Git and Mercurial. - Clean and tested code: I prioritize clean, well-commented code, and integrate unit testing whenever possible within client budgets. Additional achievements: - Built Google App Engine apps standard Runtime. - Created a custom code editor for safer code edition. - Integrated with Search Console using Apps Script. - Wrote 20 professional blog content for clients. - Led one of the most active programming communities in France. Let's discuss your project!

Businesses often need more than just a developer. They need someone who can understand the requirement properly, suggest the right approach, and build a product that works smoothly in real use. I help startups, founders, and growing businesses build web applications, mobile apps, SaaS products, MVPs, and custom business platforms with a strong focus on clarity, performance, and long term scalability. With 15+ years of experience in software development, I have worked on projects from idea stage to launch, and also on existing platforms that needed improvements, feature expansion, workflow refinement, or complete redevelopment. My work covers both frontend and backend, so clients do not need to manage multiple developers for one product. I focus on understanding the business goal first, then translating it into a practical and reliable solution. This helps reduce confusion during development and keeps the project aligned with the real requirement. **What I can help with:** ---------------------------- • Custom web application development • Mobile app development (Hybrid and Native) • SaaS product development • MVP development • Admin panels and dashboards • API development and third party integrations • Ecommerce and marketplace platforms • Maintenance and feature enhancement of existing products **Tech stack I work with includes:** React, Node.js, Laravel, Flutter, Python, WordPress, Shopify, Swift, Kotlin, and API based integrations. Clients usually appreciate working with me because I bring clear communication, structured execution, dependable support, and a practical approach to solving product challenges. Whether you need to build a product from scratch, improve an existing application, or develop a stable MVP with the right technical foundation, I can help move the project forward in a clear and efficient way. If you are looking for a developer who can combine technical execution with a strong understanding of business needs, I would be glad to discuss the scope and suggest the right approach.