Hire the Best Google App Engine Developers in Kolkata, IN

Hello! I am Dibyendu, a Web and Mobile app developer, working and managing talented developers at a renowned IT company in India. Our passion is to create beautiful, user-friendly, interactive mobile websites and applications. We are skilled in: ✅ Website Design and Development ✅ MEAN & MERN Full Stack Development ✅ WordPress Woocommerce ✅ Ecommerce like Magento, Shopify, etc ✅ PHP/Mysql ✅ Java ✅ Asp .Net ✅ Google API ✅ IOT ✅ AWS and Azure Certified Team. We also specialize in Mobile App Development. Below are some technologies we work on: ✅ Android SDK ✅ Swift ✅ Objective C ✅ React Native ✅ Kotlin ✅ Xamarin ✅ Flutter and much more. We have developed both Native and Hybrid apps. We are currently a team of 15 passionate developers and designers. We are committed to your success. We started in 2008 and operate from Kolkata, India. We always make our clients happy by providing: 1. Excellent Customer Care - We respond to emails within 1 hour maximum. 2. Timeliness - We promise to always deliver before time. 3. Client relationship - We always respect client needs and offer useful suggestions. 4. We love to learn new things and grow. 5. Flexibility - We are flexible. So don't worry if you want any change in the middle of the project 6. Fees - We charge nominal fees for quality work. 7. Support - Lifetime free on bug discovery. So don't hesitate to contact me about your project. We can assure you will be pleased.

AI-Powered Mobile App Developer | Android & Flutter | 11+ Years Experience | Claude Code & Antigravity Agent Mode I'm a full-time freelance Mobile Application Developer with 11+ years of experience building, maintaining, and scaling apps for individuals and businesses worldwide. Over the past year, I've integrated AI-assisted, agentic development tools — including Claude Code and Antigravity IDE (Agent Mode) — directly into my workflow, allowing me to deliver production-ready apps faster, debug complex issues in a fraction of the time, and refactor legacy codebases with far greater precision than traditional development alone. I combine deep Android and Flutter expertise with modern AI-driven tooling to give clients the best of both worlds: the speed and iteration power of agentic coding, backed by 11 years of hands-on architecture, performance optimization, and real-world app maintenance experience. WHAT I BRING Native Android & Cross-Platform Flutter Development AI-Assisted Development using Claude Code & Antigravity Agent Mode Legacy App Maintenance, Refactoring & Performance Optimization Firebase & Third-Party API Integration Application Architecture & Troubleshooting Team Leadership & Project Management I work U.S. business hours for seamless communication and treat every project as a long-term partnership — from first release through ongoing maintenance and growth. I take full ownership, communicate clearly, and use AI tooling not as a shortcut, but as a force multiplier for quality and speed.

✮ 18+ years in IT. ✮ Worked with several Fortune 500 Companies ✮ Experienced Full Stack Developer ✮ Worked with British Telecom, AT&T, Google, IBM, etc. ✮ 100% refund policy. ✮ Available 18 hours a day. Prior to this I have worked with several fortunes 500 companies which include British Telecom, AT&T, Google, IBM before start my own freelancing work. Having more than 18+ years rich knowledge in IT and handled more than 3000+ live projects I can guarantee that I will add value to your projects. If I can’t deliver anything I won’t charge for my time, and in this world nobody wants to work for free. [ What I can provide ] ✮ Angular JS 6 Development ✮ Node JS Development ✮ Python Development ✮ React JS ✮ Meteor JS ✮ Express JS / Sails JS ✮ Vue JS ✮ TypeScript ✮ AngularDart ✮ Dart ✮ Mobile App ✮ IOS Development ✮ Android Development ✮ Swift 4 ✮ Java 8 ✮ Objective C ✮ Google Kotlin ✮ React Native ✮ Google Flutter ✮ E-commerce Development ✮ Magento Development ✮ Website development ✮ Mobile Back end development ✮ Graphic design + UI & UX implementation ✮ Consulting in mobile app development ✮ Startup Development I am having strong expertise in database, here is few in the list, ✮ MS SQL ✮ Mongo DB ✮ My SQL ✮ Maria DB ✮ SQL Lite ✮ Amazon Dynamo DB ✮ Amazon Aurora Expertise in Blockchain: ✮ Smart Contracts development using Solidity ✮ Subgraph indexing using the graph ✮ Tokenomics ✮ Vesting ✮ Web3 integration ✮ In-depth knowledge of ERC20 & ERC721 Smart Contracts ✮ NFT contract ✮ Token/ coin Contract ✮ Defi EXchange ✮ BEP1155 ✮ Hardhat ✮ NFT minting Also I am comfortable with Cloud Computing using Amazon AWS, GCloud, MS Azure. Here is my system programming exprience, ✮ Docker ✮ Kubernetes ✮ Jenkins ✮ Google App Engine ✮ Micro Services ✮ Amazon Elastic Container Services ✮ Amazon Elastic Beanstalk ✮ Amazon EBS ✮ Amazon AWS CLI ✮ Elastic Cache ✮ Mem Cache ✮ Redis Cache Also I am comfortable with Analytical information or Search engine development. Here is my informations below, ✮ Apache Solr Search ✮ Amazon Elastic Search ✮ Amazon Red Shift ✮ Kibana ✮ Lucene ✮ Sphinx ✮ Xapian [ My Domain Experience ] ✮ On-Demand Service app ✮ SAAS ✮ Uber-like app ✮ Food delivery website and app ✮ Restaurant website and app ✮ Travel website and app ✮ Social network website and app ✮ Upwork like service marketplace website and app. ✮ Crowdfunding website and app ✮ Service provider finder app ✮ GPS apps ✮ Product selling website and app ✮ Event ticket-selling website ✮ Daily Deal website and app ✮ E-commerce website and app ✮ Dating website and apps ✮ Rideshare apps Also I am comfortable with several open source system, like follows, ✮ Magento ✮ WordPress ✮ Drupal I love my job as working with different clients has given me the opportunity of being a part of so many wonderful ideas and journeys. My approach to work is to go beyond the job description and focus on building a long lasting relationship with all clients.

✮ 18+ years in IT. ✮ Worked with several Fortune 500 Companies ✮ Experienced Full Stack Developer ✮ Worked with British Telecom, AT&T, Google, IBM, etc. ✮ 100% refund policy. ✮ Available 18 hours a day. Prior to this I have worked with several fortunes 500 companies which include British Telecom, AT&T, Google, IBM before start my own freelancing work. Having more than 18+ years rich knowledge in IT and handled more than 3000+ live projects I can guarantee that I will add value to your projects. If I can’t deliver anything I won’t charge for my time, and in this world nobody wants to work for free. [ What I can provide ] ✮ Angular JS 6 Development ✮ Node JS Development ✮ React JS ✮ Meteor JS ✮ Express JS / Sails JS ✮ Vue JS ✮ TypeScript ✮ AngularDart ✮ Dart ✮ Mobile App ✮ IOS Development ✮ Android Development ✮ Swift 4 ✮ Java 8 ✮ Objective C ✮ Google Kotlin ✮ React Native ✮ Google Flutter ✮ E-commerce Development ✮ Magento Development ✮ Website development ✮ Mobile Back end development ✮ Graphic design + UI & UX implementation ✮ Consulting in mobile app development ✮ Startup Development I am having strong expertise in database, here is few in the list, ✮ MS SQL ✮ Mongo DB ✮ My SQL ✮ Maria DB ✮ SQL Lite ✮ Amazon Dynamo DB ✮ Amazon Aurora Also I am comfortable with Cloud Computing using Amazon AWS, GCloud, MS Azure. Here is my system programming exprience, ✮ Docker ✮ Kubernetes ✮ Jenkins ✮ Google App Engine ✮ Micro Services ✮ Amazon Elastic Container Services ✮ Amazon Elastic Beanstalk ✮ Amazon EBS ✮ Amazon AWS CLI ✮ Elastic Cache ✮ Mem Cache ✮ Redis Cache Also I am comfortable with Analytical information or Search engine development. Here is my informations below, ✮ Apache Solr Search ✮ Amazon Elastic Search ✮ Amazon Red Shift ✮ Kibana ✮ Lucene ✮ Sphinx ✮ Xapian [ My Domain Experience ] ✮ On-Demand Service app ✮ SAAS ✮ Uber-like app ✮ Food delivery website and app ✮ Restaurant website and app ✮ Travel website and app ✮ Social network website and app ✮ Upwork like service marketplace website and app. ✮ Crowdfunding website and app ✮ Service provider finder app ✮ GPS apps ✮ Product selling website and app ✮ Event ticket-selling website ✮ Daily Deal website and app ✮ E-commerce website and app ✮ Dating website and apps ✮ Rideshare apps Also I am comfortable with several open source system, like follows, ✮ Magento ✮ WordPress ✮ Drupal I love my job as working with different clients has given me the opportunity of being a part of so many wonderful ideas and journeys. My approach to work is to go beyond the job description and focus on building a long lasting relationship with all clients.

I'm web and mobile app developer expert in PHP/ Python/ Google Workspace/ Apps Script/ JavaScript/ HTML/ CSS/ API/ Scraping/ Web Hooks/ MySQL/ MariaDB/ NoSQL. Cross-platform Developer Over my 14+ years of experience working for MNC's, i have come across several operational challenges and various type of technologies. "Spartan: keep it short and simple", is my approach to problems where possible. I am also an excellent communicator, with extensive experience in team leadership, team management and successful interactions with clients. Magento, WordPress, Cake PHP, CodeIgniter, Laravel are the most favorite framework for me. My few expertise are in as below:- 1. API integration 2. Web scraping. 3. WordPress plugin & Theme building. 4. Working with automation tools like, Zapier, Make etc. 5. My SQL data base. 6. Developing Games.