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Md Rabin M.

Banani Model Town, Bangladesh

$8/hr
5.0
10 jobs

Hi there, Building a mobile app is easy โ€” building one that is fast, scalable, and ready for real users is where most developers fail. I help startups and businesses turn ideas into high-quality Flutter apps that are clean, scalable, and production-ready. ๐—›๐—ผ๐˜„ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐—”๐—ฝ๐—ฝ ๐—š๐—ผ๐—ฒ๐˜€ ๐—™๐—ฟ๐—ผ๐—บ ๐—œ๐—ฑ๐—ฒ๐—ฎ โ†’ ๐—Ÿ๐—ฎ๐˜‚๐—ป๐—ฐ๐—ต: I follow a structured development process: โ†’ UI implementation (Pixel-perfect Flutter UI) โ†’ API integration (Laravel / REST APIs) โ†’ State management & app logic โ†’ Testing & performance optimization โ†’ App deployment (Play Store & App Store) This ensures your app is stable, smooth, and ready to scale. #FREE consultation available: I can help you: โ†’ Validate your app idea โ†’ Plan features & MVP โ†’ Choose the right backend & architecture โ†’ Estimate cost & timeline ๐—ง๐˜†๐—ฝ๐—ฒ๐˜€ ๐—ผ๐—ณ ๐—”๐—ฝ๐—ฝ๐˜€ ๐—œ ๐—•๐˜‚๐—ถ๐—น๐—ฑ: I donโ€™t just build basic apps โ€” I build real-world applications: โœ… Service booking apps โœ… Marketplace apps (multi-vendor / multi-role) โœ… E-commerce mobile apps โœ… Appointment & scheduling apps โœ… Food delivery / ordering apps โœ… Subscription-based apps โœ… Business & admin apps โœ… Custom startup MVP apps ๐—ง๐—ฒ๐—ฐ๐—ต๐—ป๐—ถ๐—ฐ๐—ฎ๐—น ๐—ฆ๐˜๐—ฟ๐—ฒ๐—ป๐—ด๐˜๐—ต: โ†’ Flutter (Dart) โ†’ Firebase (Auth, Firestore, Notifications) โ†’ REST API integration โ†’ Laravel backend (for scalable systems) โ†’ Payment gateway integration โ†’ Push notifications โ†’ Clean architecture & reusable code ๐—ช๐—ต๐˜† ๐—–๐—น๐—ถ๐—ฒ๐—ป๐˜๐˜€ ๐—ช๐—ผ๐—ฟ๐—ธ ๐—ช๐—ถ๐˜๐—ต ๐— ๐—ฒ: โ†’ I understand both frontend + backend (full system mindset) โ†’ I focus on performance & user experience โ†’ I communicate clearly and deliver on time โ†’ I build apps that are ready for real users โ€” not just demos ๐—ฃ๐—ผ๐˜€๐˜-๐—Ÿ๐—ฎ๐˜‚๐—ป๐—ฐ๐—ต ๐—ฆ๐˜‚๐—ฝ๐—ฝ๐—ผ๐—ฟ๐˜ I provide support after delivery to fix issues, improve performance, and help you scale your app. If you're looking for a Flutter developer who can actually deliver a complete, working app โ€” letโ€™s connect. Send me a message and letโ€™s get started.

  • Flutter
  • Dart
  • Firebase
  • Android App Development
  • App Development
  • iOS Development
  • Mobile App
  • API
  • Postman
  • Push Notifications
  • Payment Gateway Integration
  • Payment Functionality
  • PayPal Integration
  • Stripe API
  • AI App Development
Mihad H.

Gazaria, Bangladesh

$25/hr
5.0
5 jobs

๐“๐ซ๐š๐ง๐ฌ๐Ÿ๐จ๐ซ๐ฆ ๐ฒ๐จ๐ฎ๐ซ ๐›๐ฎ๐ฌ๐ข๐ง๐ž๐ฌ๐ฌ ๐ฐ๐ข๐ญ๐ก ๐š๐ง ๐€๐ˆ-๐ฉ๐จ๐ฐ๐ž๐ซ๐ž๐, ๐ฎ๐ฌ๐ž๐ซ-๐Ÿ๐ซ๐ข๐ž๐ง๐๐ฅ๐ฒ ๐ฆ๐จ๐›๐ข๐ฅ๐ž ๐š๐ฉ๐ฉ. ๐‚๐จ๐ง๐ญ๐š๐œ๐ญ ๐ฆ๐ž ๐ญ๐จ ๐ ๐ž๐ญ ๐ฌ๐ญ๐š๐ซ๐ญ๐ž๐. I am a Senior Mobile Application Developer specializing in end to end development . With over ๐Ÿ“+ ๐ฒ๐ž๐š๐ซ๐ฌ of hands on experience, I donโ€™t just write code I build products that scale. From bringing your idea to life and creating a beautiful, easy to use design to building a ๐ฌ๐ญ๐ซ๐จ๐ง๐  ๐›๐š๐œ๐ค๐ž๐ง๐ and connecting your app to the world, I provide the ๐ž๐ฑ๐ฉ๐ž๐ซ๐ญ ๐ ๐ฎ๐ข๐๐š๐ง๐œ๐ž your mobile project needs. ๐Ÿš€ ๐–๐ก๐š๐ญ ๐Œ๐š๐ค๐ž๐ฌ ๐Œ๐ž ๐ƒ๐ข๐Ÿ๐Ÿ๐ž๐ซ๐ž๐ง๐ญ In a crowded market, I stand out by focusing on ๐๐ฎ๐ฌ๐ข๐ง๐ž๐ฌ๐ฌ ๐ˆ๐ฆ๐ฉ๐š๐œ๐ญ and ๐“๐ž๐œ๐ก๐ง๐ข๐œ๐š๐ฅ ๐„๐ฑ๐œ๐ž๐ฅ๐ฅ๐ž๐ง๐œ๐ž: ๐Ÿ”ธ ๐…๐ฎ๐ฅ๐ฅ-๐’๐ญ๐š๐œ๐ค ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ : I build apps with Flutter and Node.js / Firebase. ๐Ÿ”ธ ๐€๐ˆ ๐…๐ž๐š๐ญ๐ฎ๐ซ๐ž๐ฌ : I add smart AI tools like OpenAI and Gemini to make your app stand out. ๐Ÿ”ธ ๐‚๐ฅ๐ž๐š๐ง ๐‚๐จ๐๐ž : Using BLoC & Riverpod for fast, scalable apps. ๐Ÿ”ธ ๐‘๐ž๐š๐ฅ ๐๐š๐ซ๐ญ๐ง๐ž๐ซ๐ฌ๐ก๐ข๐ฉ :I give honest advice to keep your app stable and successful long-term. ๐Ÿ”ธ ๐€๐ฉ๐ฉ ๐’๐ญ๐จ๐ซ๐ž ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ : From code to App Store & Google Play I handle it all. ๐Ÿ›  ๐Œ๐ฒ ๐“๐ž๐œ๐ก๐ง๐ข๐œ๐š๐ฅ ๐๐จ๐ฐ๐ž๐ซ ๐’๐ญ๐š๐œ๐ค ๐Ÿ“ฑ๐Œ๐จ๐›๐ข๐ฅ๐ž ๐€๐ฉ๐ฉ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ ๐Ÿ”ธFlutter | Android Studio | Xcode โš™๏ธ ๐๐š๐œ๐ค-๐„๐ง๐ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ ๐Ÿ”ธ Node.js | Express.js | FastAPI | Redis ๐Ÿ“Š๐ƒ๐š๐ญ๐š๐›๐š๐ฌ๐ž๐ฌ ๐Ÿ”ธ MongoDB | PostgreSQL | Firebase ๐Ÿ”Œ ๐€๐๐ˆ & ๐“๐ก๐ข๐ซ๐-๐๐š๐ซ๐ญ๐ฒ ๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ข๐จ๐ง๐ฌ ๐Ÿ”ธStripe | Paypal | OpenAI | Google Maps ๐Ÿค– ๐€๐ˆ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ ๐Ÿ”ธ LLM | AI Agents | Chatbots | RAG | Model Fine-tuning | OpenAI | Gemini ๐Ÿš€ ๐ƒ๐ž๐ฏ๐Ž๐ฉ๐ฌ & ๐ƒ๐ž๐ฉ๐ฅ๐จ๐ฒ๐ฆ๐ž๐ง๐ญ ๐Ÿ”ธ AWS | Docker | Git | GitHub | S3 ๐ŸŒ ๐ˆ๐ง๐๐ฎ๐ฌ๐ญ๐ซ๐ฒ ๐„๐ฑ๐ฉ๐ž๐ซ๐ข๐ž๐ง๐œ๐ž ๐Ÿ”ธ ๐…๐ข๐ง๐ญ๐ž๐œ๐ก & ๐๐š๐ง๐ค๐ข๐ง๐ : Budgeting, payment gateways, KYC, digital wallets ๐Ÿ”ธ ๐‡๐ž๐š๐ฅ๐ญ๐ก๐œ๐š๐ซ๐ž: Telemedicine, health records, secure EHR apps ๐Ÿ”ธ ๐„-๐œ๐จ๐ฆ๐ฆ๐ž๐ซ๐œ๐ž: Shopping, order tracking, inventory, POS ๐Ÿ”ธ ๐‘๐ž๐š๐ฅ ๐„๐ฌ๐ญ๐š๐ญ๐ž: Property listings, mortgage tools ๐Ÿ”ธ ๐„๐๐ฎ๐œ๐š๐ญ๐ข๐จ๐ง: E-learning, quizzes, assessments ๐Ÿ”ธ ๐“๐ซ๐š๐ฏ๐ž๐ฅ: Booking, itineraries, safety tracking ๐Ÿ”ธ ๐…๐จ๐จ๐: Delivery & table reservations ๐Ÿ”ธ ๐’๐จ๐œ๐ข๐š๐ฅ: Dating, community & chat apps ๐Ÿ”ธ ๐…๐ข๐ญ๐ง๐ž๐ฌ๐ฌ: Workout & nutrition tracking ๐Ÿ”ธ ๐„๐ง๐ญ๐ž๐ซ๐ญ๐š๐ข๐ง๐ฆ๐ž๐ง๐ญ: Streaming & ticketing apps ๐Ÿ”ธ ๐ˆ๐จ๐“: Smart control & automation apps ๐Ÿ”ธ ๐‹๐จ๐ ๐ข๐ฌ๐ญ๐ข๐œ๐ฌ: Vehicle tracking & fleet systems ๐Ÿ”ธ ๐€๐ ๐ซ๐ข๐œ๐ฎ๐ฅ๐ญ๐ฎ๐ซ๐ž: Crop & weather tracking ๐Ÿ”ธ ๐Œ๐š๐ง๐ฎ๐Ÿ๐š๐œ๐ญ๐ฎ๐ซ๐ข๐ง๐ : Inventory & quality control ๐Ÿ”ธ ๐‡๐‘: Job portals & attendance apps ๐Ÿ”ธ ๐’๐ฉ๐จ๐ซ๐ญ๐ฌ: Live scores & team management ๐Ÿ”ธ ๐†๐จ๐ฏ๐ž๐ซ๐ง๐ฆ๐ž๐ง๐ญ/๐๐†๐Ž: Public service mobile apps I believe great mobile apps should be fast, secure, scalable, and user-friendly, and thatโ€™s exactly how I build every project. ๐ŸŒŸ ๐–๐ก๐ฒ ๐‚๐ฅ๐ข๐ž๐ง๐ญ๐ฌ ๐‚๐ก๐จ๐จ๐ฌ๐ž ๐Œ๐ž ๐Ÿ๐จ๐ซ ๐Œ๐จ๐›๐ข๐ฅ๐ž ๐€๐ฉ๐ฉ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ โœ”๏ธ Business-focused solutions aligned with your goals โœ”๏ธ Clean and scalable architecture for long-term growth โœ”๏ธ High-performance apps optimized across all devices โœ”๏ธ Clear communication with regular progress updates โœ”๏ธ End-to-end delivery with ongoing support โœ”๏ธ Full mobile and web app development from start to finish โœ”๏ธ AI-powered, cross-platform solutions (Flutter, React Native, iOS/Android) โœ”๏ธ Scalable and business-ready applications โœ”๏ธ Clean and user-friendly UI/UX design for better engagement โœ”๏ธ Agile workflow with transparent communication โœ”๏ธ Reliable and high-performing applications โœ”๏ธ Post-launch support and maintenance โœ”๏ธ Strong focus on client satisfaction and results ๐Ÿ“Š ๐„๐ฑ๐ฉ๐ž๐ซ๐ข๐ž๐ง๐œ๐ž ๐‡๐ข๐ ๐ก๐ฅ๐ข๐ ๐ก๐ญ๐ฌ โœ… 100+ Mobile Applications Delivered โœ… Apps Published on Google Play & Apple App Store โœ… Experience in E-commerce, Healthcare, Fintech, Booking, Social & AI Apps โœ… AI Features Integrated into Live Production Apps โœ… Long-Term Client Support & Product Ownership Mindset ๐Ÿ’š ๐Œ๐ฒ ๐‚๐จ๐ฆ๐ฆ๐ข๐ญ๐ฆ๐ž๐ง๐ญ ๐ญ๐จ ๐˜๐จ๐ฎ๐ซ ๐’๐ฎ๐œ๐œ๐ž๐ฌ๐ฌ I focus on sustainable, long-term solutions, not quick fixes. I take ownership of every project and provide honest, strategic guidance to ensure real product impact. ๐Ÿš€ ๐ˆ ๐‚๐š๐ง ๐‡๐ž๐ฅ๐ฉ ๐–๐ข๐ญ๐ก: ๐Ÿ”ธStartup MVP Mobile Apps ๐Ÿ”ธFull-featured iOS & Android Apps ๐Ÿ”ธSaaS-based Mobile Platforms ๐Ÿ”ธApp Improvements & Rebuilds ๐Ÿ’ฌ๐‹๐ž๐ญโ€™๐ฌ ๐–๐จ๐ซ๐ค ๐“๐จ๐ ๐ž๐ญ๐ก๐ž๐ซ ๐’๐ž๐ง๐ ๐ฆ๐ž ๐š ๐ฆ๐ž๐ฌ๐ฌ๐š๐ ๐ž ๐จ๐ซ ๐ข๐ง๐ฏ๐ข๐ญ๐ž ๐ฆ๐ž ๐ญ๐จ ๐ฒ๐จ๐ฎ๐ซ ๐ฃ๐จ๐›! Letโ€™s discuss how we can turn your idea into a ๐ฉ๐จ๐ฐ๐ž๐ซ๐Ÿ๐ฎ๐ฅ, ๐ฉ๐ซ๐จ๐๐ฎ๐œ๐ญ๐ข๐จ๐ง ๐ซ๐ž๐š๐๐ฒ ๐ฌ๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง.

  • Flutter
  • Mobile App
  • Mobile App Design
  • FlutterFlow
  • Android
  • iOS Development
  • iOS
  • API Integration
  • Hybrid App Development
  • Artificial Intelligence
  • AI Chatbot
  • AI Development
  • ChatGPT
  • AI Agent Development
  • OpenAI API
  • Machine Learning
  • AI App Development
  • Automation
  • Chatbot Development
  • Lead Generation
Md Abdulla A.

Jhenaidah, Bangladesh

$5/hr
5.0
38 jobs

โœ… High-Quality, Professional Output โœ… Clear and Responsive Communication โœ… Fast and Dependable Turnaround Senior Python Developer | Desktop App| RAG | SaaS | Extensions Are you looking for a Python developer who can help with web scraping, data extraction, bot development, and automation? If so, youโ€™re in the right place. Iโ€™m an experienced Python developer specializing in web scraping and automation. I work with tools and frameworks such as BeautifulSoup, Scrapy, Selenium, and Requests to extract data from almost any website. I can deliver data in formats like CSV, JSON, XML, and more. I also build custom bots and automation scripts for tasks like login automation, form submission, file downloads, data uploads, and ticket booking. In addition, I develop Chrome extensions for data extraction tailored to your specific requirements. I am offering the following expertise: My All Services... โœ”๏ธAdvanced Web Scraping Using Python โœ”๏ธReal-Time Data Extraction Capabilities for up-to-date Information โœ”๏ธCAPTCHA handling strategies โœ”๏ธAPI Development โœ”๏ธTelegram, Discord Bot Development โœ”๏ธAutomated Scripts โœ”๏ธBuilding Chrome Extensions โœ”๏ธWeb Crawling โœ”๏ธWeb Scraping โœ”๏ธCI/CD pipelines, and building machine learning and NLP solutions โœ”๏ธGoogle Maps Scraping โœ”๏ธDevelopment of customized bots and automation scripts โœ”๏ธ E-commerce (Shopify) โœ”๏ธGoogle Apps Script (Sheets, Docs, Maps) โœ”๏ธSeamless Login and Posting Automation โœ”๏ธHigh-Performance Multi-threaded / Async Scrapers โœ”๏ธWeb Scraping ( BeautifulSoup, Selenium, Scrapy) โœ”๏ธWeb Automation ( Selenium WebDriver, Zapier, Playwright) โœ”๏ธSports Scrapping, Betting Sites Scrapping, Live Data Scrapping Looking forward to working with you! Thanks! Md Abdulla Al Mamun #Python #PythonDeveloper #PythonProgramming #PythonScripting #PythonAutomation #WebScraping #PythonWebScraping #SeleniumPython #Scrapy #BeautifulSoup #botdevelopment #bot #scrapper #pipeline #robustdatascraping #PlaywrightPython #PythonProjects #PythonCode #PythonScript #DataScraping #PythonAPIs #PythonBot #AsyncPython #PythonDev #PythonCrawler #PythonFreelancer #DataProcessing #PythonETL #PythonTools #AutomateWithPython #PythonSolutions #PythonDataEngineering #PythonBackEnd #FastAPIPython #PandasPython #PythonCSV #Puppeteer #Node.js #DevOps #AIdevelopment #ChromeExtensions #APIBuilding #GUIDevelopment #Octoparse #Requests #BS4 #SpringBoot #Django #FastAPI #AWS #Docker #CI/CDpipelines #PostgreSQL #Stripe #Machinelearning #RetrievalAugmentedGeneration(RAG) #OpenCV #ChoromeExtentions #JavaScript #FullStack #DesktopApplication #SaaS

  • Web Scraping
  • Python
  • Data Extraction
  • Selenium
  • Browser Automation
  • Automation
  • Data Scraping
  • Beautiful Soup
  • Flask
  • Django
  • SaaS
  • Machine Learning
  • Google Chrome Extension
  • OpenCV
  • Desktop Application
  • JavaScript
  • API
  • GPT-4-Turbo
  • Retrieval Augmented Generation
  • Web Development
Amon C.

Maheshpur, Bangladesh

$45/hr
4.6
89 jobs

I started coding at a very young age and have now spent 17+ years building real software products used by thousands of users worldwide. Over the last several years Iโ€™ve focused heavily on Flutter AI-powered applications backend systems and scalable mobile architecture. I'm an Anthropic Claude Certified Architect (Foundations) with expertise in designing production-grade AI applications including agentic architectures Model Context Protocol (MCP) tool integration prompt engineering context management and Claude Code workflows. Today I use AI-assisted development daily with Claude Code OpenAI Codex and modern agentic workflows to build products dramatically faster while maintaining clean architecture and long-term scalability. I specialize in building high quality cross-platform mobile applications for iOS and Android using Flutter and Dart with production-ready backend systems realtime infrastructure and AI-powered experiences. Iโ€™ve worked with startups YC-backed companies SaaS platforms AI products ecommerce systems healthcare apps fintech platforms social apps and automation systems. My experience includes both fast-moving MVP development and large scale production applications. One of my biggest projects was building the mobile app for Cartpanda a YC-backed ecommerce platform from Brazil where I worked as a Senior Mobile Engineer and helped scale a complex production application used by real businesses. I also build AI-powered systems and agentic applications using OpenAI Claude and Gemini with modern LLM workflows. ๐Ÿš€ Core Skills & Technologies ๐Ÿ“ฑ Mobile & Flutter Flutter SDK, Dart, Riverpod, Bloc, FlutterFlow, Rive animations, realtime systems, WebSocket integrations, offline-first architecture, Firebase Cloud Messaging (FCM), RevenueCat, Superwall, payment systems, subscription platforms, native iOS and Android integrations, App Store Connect and Google Play Console โš™๏ธ Backend & APIs NodeJS, TypeScript, FastAPI, Supabase, Firebase, PostgreSQL, REST APIs, realtime backend systems, authentication systems, Supabase RLS, Clerk Auth, Stripe integration, Dockerized backend services, scalable API architecture and admin dashboards ๐ŸŒ Web & Frontend NextJS, React, Tailwind CSS, shadcn/ui, Vercel, responsive frontend systems, SaaS platforms, realtime dashboards, internal business platforms and AI-powered web applications ๐Ÿค– AI & Automation OpenAI, Claude, Gemini, multimodal AI systems, AI agents, AI chatbots, LangChain, RAG pipelines, OCR workflows, vector search systems, MCP workflows, AI document processing systems, n8n and Make automation ๐ŸŽ™๏ธ Voice AI & Realtime AI Retell AI, Vapi, LiveKit, Deepgram, ElevenLabs, realtime voice agents, conversational AI systems, speech-to-text pipelines, text-to-speech systems, low latency audio streaming, AI phone agents and AI receptionist workflows โ˜๏ธ DevOps & Infrastructure Docker, Docker Compose, DigitalOcean, Ubuntu servers, Nginx, Redis, Celery, GitHub Actions, Firebase Hosting, Cloudflare DNS, CI/CD workflows, Linux deployment and scalable cloud infrastructure

  • Flutter
  • Smartphone
  • Dart
  • Firebase
  • Mobile App Development
  • iOS Development
  • Android App Development
  • REST API
  • API Integration
  • Node.js
  • Supabase
  • FlutterFlow
  • Google Maps API
  • AI Mobile App Development
  • PostgreSQL
  • Push Notifications
  • iPad App Development
  • AI Chatbot
  • Claude
  • Full-Stack Development
Md Azad Hossain T.

Chattogram, Bangladesh

$25/hr
5.0
6 jobs

๐Ÿ’ผ ๐Ÿ๐ŸŽ๐ŸŽ% ๐‰๐Ž๐ ๐’๐”๐‚๐‚๐„๐’๐’ ๐’๐‚๐Ž๐‘๐„ ๐ŸŽ–๏ธ ๐Ÿ๐Ÿ”+ ๐‚๐„๐‘๐“๐ˆ๐…๐ˆ๐‚๐€๐“๐ˆ๐ˆ๐Ž๐๐’ ๐Ÿ’ป ๐Ÿ“+ ๐˜๐„๐€๐‘ ๐Ž๐… ๐„๐—๐๐„๐‘๐ˆ๐„๐๐‚๐„ ๐ˆ ๐š๐ฆ ๐š ๐…๐ฎ๐ฅ๐ฅ-๐’๐ญ๐š๐œ๐ค ๐Œ๐จ๐›๐ข๐ฅ๐ž ๐€๐ฉ๐ฉ๐ฅ๐ข๐œ๐š๐ญ๐ข๐จ๐ง ๐„๐ง๐ ๐ข๐ง๐ž๐ž๐ซ ๐ฌ๐ฉ๐ž๐œ๐ข๐š๐ฅ๐ข๐ณ๐ข๐ง๐  ๐ข๐ง ๐…๐ฅ๐ฎ๐ญ๐ญ๐ž๐ซ, ๐…๐ข๐ง๐“๐ž๐œ๐ก ๐ฌ๐ฒ๐ฌ๐ญ๐ž๐ฆ๐ฌ, ๐€๐ˆ-๐ฉ๐จ๐ฐ๐ž๐ซ๐ž๐ ๐ฆ๐จ๐›๐ข๐ฅ๐ž ๐š๐ฉ๐ฉ๐ฅ๐ข๐œ๐š๐ญ๐ข๐จ๐ง๐ฌ, ๐š๐ง๐ ๐ฌ๐œ๐š๐ฅ๐š๐›๐ฅ๐ž ๐œ๐ซ๐จ๐ฌ๐ฌ-๐ฉ๐ฅ๐š๐ญ๐Ÿ๐จ๐ซ๐ฆ ๐๐ข๐ ๐ข๐ญ๐š๐ฅ ๐ฉ๐ซ๐จ๐๐ฎ๐œ๐ญ๐ฌ ๐Ÿ๐จ๐ซ ๐ข๐Ž๐’ ๐š๐ง๐ ๐€๐ง๐๐ซ๐จ๐ข๐. I help startups and businesses turn ideas into production-grade mobile applications that are secure, scalable, and built for real users and real transactions. My focus is not just development - I build complete product systems that combine mobile apps, backend architecture, APIs, and AI-driven features to create real business value. I have professional experience working on live FinTech systems at Codego (Milan, Italy), where I contributed to banking and payment infrastructure used in real-world financial operations. I also worked at AppDevs as a Senior Software Engineer, leading Flutter-based development across FinTech, AI automation, and enterprise mobile applications. ๐Ÿš€ CORE EXPERTISE: โœ” FinTech & Digital Banking Systems (wallets, IBAN onboarding, KYC, authentication, transaction flows, secure financial operations) โœ” Payment & Subscription Platforms (digital wallets, recurring payments, transaction history, financial dashboards) โœ” AI-Powered Mobile Applications (ChatGPT/OpenAI, Gemini API, AI assistants, automation systems, smart app features) โœ” Cross-Platform Mobile Development using Flutter for iOS and Android โœ” Firebase & Scalable Backend Systems (Auth, Firestore, Cloud Messaging, Analytics, Crashlytics, performance monitoring) โœ” REST API & Backend Integration for secure, scalable data flow โœ” App Store & Play Store deployment with production optimization ๐Ÿ›  TECHNICAL STACK: Flutter, Dart, Firebase, REST APIs, Node.js, Python Django, Supabase, PostgreSQL, GetX, Provider, Riverpod, BLoC, Clean Architecture, CI/CD pipelines, App Store Connect, Google Play Console, API integration, mobile architecture design. ๐Ÿง  AI & MODERN DEVELOPMENT APPROACH: I actively use AI-assisted development tools such as ๐‚๐ก๐š๐ญ๐†๐๐“, ๐‚๐ฅ๐š๐ฎ๐๐ž, and ๐†๐ž๐ฆ๐ข๐ง๐ข to accelerate development, improve system design, debug faster, and enhance architecture decisions - while maintaining production-level code quality. I also understand blockchain and cryptocurrency fundamentals including decentralization, digital assets, secure transactions, and distributed systems, which allows me to contribute to modern FinTech and Web3 applications. ๐Ÿ“ฆ WHAT I DELIVER: โœ” Production-ready mobile applications (FinTech, AI, SaaS, Marketplace, Utility apps) โœ” Clean, scalable, and maintainable Flutter architecture โœ” Secure authentication and payment systems โœ” API-driven mobile application ecosystems โœ” High-performance UI with smooth and responsive experience โœ” Full deployment support for iOS and Android platforms I can work from scratch (idea โ†’ MVP โ†’ production) or join existing projects to improve, optimize, or scale them. I work with startups, agencies, and long-term product teams focused on real product growth. โšก WORKING APPROACH: I focus on building clean, maintainable, and scalable codebases with strong architecture, secure data flow, and optimized performance. My goal is to deliver mobile applications that are ready for real users, real transactions, and real business growth. ๐ŸŒ BUSINESS MINDSET: Every product is unique, so I always begin by understanding your idea, goals, and technical requirements before development. This ensures the right architecture, faster execution, and better long-term scalability. ๐Ÿ‘‰ Click the ๐œ๐จ๐ง๐ญ๐š๐œ๐ญ button to share your requirements, and letโ€™s build a scalable, production-ready mobile application that actually solves real business problems.

  • Flutter
  • Dart
  • Firebase
  • Mobile App Development
  • iOS
  • Android
  • React Native
  • Node.js
  • AI Mobile App Development
  • Hybrid App Development
  • Payment Gateway Integration
  • Full-Stack Development
  • React
  • REST API
  • Supabase
  • FinTech
  • Cryptography
  • Blockchain
  • Web3
  • DeFi
Sm S.

Jhenaidah Sardar UZ, Bangladesh

$9/hr
5.0
35 jobs

Trusted by 120+ Clients Worldwide | Completed 200+ Projects. Available for Fixed priced projects. Some quick information: - No bad review | Not even a single one - Top rated on Upwork - Level 2 on Fiverr | 160+ ratings - Expertise in UI UX - Cross platform developer (Android, iOS, Web) Hi, Iโ€™m Saleheen, a Senior Flutter Developer from Bangladesh. You can check out the reviews, and I guarantee you won't find one single bad review about me. It's been almost five years since I started working with Flutter, and the journey has been amazing. Over this journey, I have had the chance to work with countless clients worldwide and create amazing apps, including:โ€จ * Medical & Healthcare * E-commerce * Real Estate * Education * Chat & Social * Crowdfunding * Multivendor Platforms * Religious / Islamic Apps * AI-driven Apps. * And many more If youโ€™d like to collaborate, discuss a project, or do a 1-on-1 call, feel free to reach out. I respond quickly and am always open to meaningful conversations. I like long-term commitments with clients, so I donโ€™t leave them unsatisfied ๐Ÿ™‚ Looking for some cool clients to work with.

  • Flutter
  • Dart
  • Firebase
  • Mobile App Development
  • SQLite
  • iOS Development
  • API Integration
  • Mapbox
  • Google Maps
  • Supabase
  • Web Development
  • Android
  • Figma
  • UI/UX Prototyping
  • Offline Functionality

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