Hire the Best Sencha Touch Developers

𝐖𝐞 𝐨𝐟𝐟𝐞𝐫 𝐅𝐑𝐄𝐄 𝐭𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐜𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐚 𝐅𝐑𝐄𝐄 𝐪𝐮𝐢𝐜𝐤 𝐫𝐞𝐯𝐢𝐞𝐰 𝐨𝐟 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭, 𝐚𝐧𝐝 𝐮𝐬𝐮𝐚𝐥𝐥𝐲 𝐫𝐞𝐬𝐩𝐨𝐧𝐝 𝐰𝐢𝐭𝐡𝐢𝐧 𝐚 𝐟𝐞𝐰 𝐡𝐨𝐮𝐫𝐬. We are Teaser Software, an ITO company based in Hanoi, Vietnam. If you’re looking for a reliable team to take your project from idea → design → development → launch → maintenance, while leveraging AI to accelerate development and improve efficiency without compromising quality, you’re in the right place. Whether you already have a detailed specification or just an initial idea, we can help shape it into a clear roadmap with realistic timelines and costs. 𝐋𝐞𝐭’𝐬 𝐜𝐨𝐧𝐧𝐞𝐜𝐭. 𝐉𝐮𝐬𝐭 𝐬𝐞𝐧𝐝 𝐮𝐬 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 𝐚𝐧𝐲𝐭𝐢𝐦𝐞. 𝐖𝐞 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐚𝐜𝐫𝐨𝐬𝐬 𝐦𝐮𝐥𝐭𝐢𝐩𝐥𝐞 𝐭𝐢𝐦𝐞 𝐳𝐨𝐧𝐞𝐬, 𝐬𝐨 𝐨𝐮𝐫 𝐭𝐞𝐚𝐦 𝐢𝐬 𝐚𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝟐𝟒/𝟕, 𝐢𝐧𝐜𝐥𝐮𝐝𝐢𝐧𝐠 𝐰𝐞𝐞𝐤𝐞𝐧𝐝𝐬.

Full Stack Developer (7 Years) | Full-Time Freelancer I provide one-stop software solutions for startups and businesses. Instead of hiring separate frontend and backend developers, I build your entire product from the ground up—from server architecture to cross-platform clients. What I Deliver: - End-to-End Lifecycle: Architectural design - Backend/API - Pixel-perfect UI - Market Release. - Cross-Platform Expansion: Seamless apps for Android, iOS, Web, Desktop, and Wear OS with high performance. - Scalable Backend Systems: Fast, reliable, and maintainable backend services powered by Rust or Kotlin for long-term product growth. - IoT & Hardware Expertise: Advanced integration for Android-based IoT clients, including Kiosk Mode, Serial Port communication, etc. - Fast Delivery: Skilled in leveraging AI agents to speed up development, reduce repetitive work, and quickly turn ideas into production-ready features. Core Tech Stack: - Frontend & Mobile: Kotlin Multiplatform, Compose Multiplatform - Backend: Axum (Rust), Ktor (Kotlin) I turn sketches into flawless, scalable apps. As a full-time freelancer, I guarantee fast, transparent communication and dedicated availability. Let’s build something great together.

I help startups and businesses build high-quality, scalable iOS applications from idea to production. With 9+ years of experience in native iOS development, I’ve worked with startups and growing companies to launch, maintain, and scale mobile products with strong performance, clean architecture, and polished user experience. I specialize in transforming business ideas into production-ready iOS apps and helping companies modernize or expand existing Android/web products into high-quality native iOS experiences. What I can help your business with - End-to-end iOS app development - Native iOS apps using Swift & SwiftUI - Convert Android/Web apps into iOS apps - MVP development for startups - Long-term product maintenance & scaling - Performance optimization & refactoring - UI/UX implementation with pixel-perfect accuracy - App architecture improvement & technical consulting - Team collaboration and Agile/Scrum workflow Technical Expertise - UI Development: UIKit, SwiftUI, Auto Layout, Core Animation - Reactive Programming: RxSwift, Combine - Networking & API Integration: RESTful APIs, URLSession, Alamofire - Backend & Cloud Services: Firebase, Firestore, Authentication, Analytics - Push Notifications: APNs, Firebase Cloud Messaging (FCM), OneSignal - Architecture Patterns: MVVM, Clean Architecture, Modular Architecture - Local Storage & Database: CoreData, UserDefaults, Realm - Media & Realtime Features: AVFoundation, WebSocket - AI & AR Features: CoreML, ARKit, Vision Framework - Authentication & Security: OAuth, JWT, Keychain - Maps & Location Services: MapKit, CoreLocation, Google Maps SDK - Testing & Debugging: XCTest, Instruments, Memory Leak Detection - CI/CD & Version Control: Git, GitHub, Fastlane, Xcode Cloud - Project Management: Agile, Scrum, Jira, Trello Why clients work with me - 9+ years of professional iOS experience - Successfully launched and maintained production apps - Strong focus on clean, maintainable, scalable code - Clear communication and reliable delivery - Experience collaborating with startups and remote teams - Detail-oriented with strong debugging and problem-solving skills - Long-term partnership mindset I care about building stable products that support real business growth — not just writing code. If you’re looking for a reliable iOS engineer to build, improve, or scale your mobile product, let’s connect.

🎁 𝗜𝗳 𝗜 𝗲𝘃𝗲𝗿 𝘀𝗲𝘁 𝘁𝗵𝗲 𝘄𝗿𝗼𝗻𝗴 𝗲𝘅𝗽𝗲𝗰𝘁𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗰𝗮𝗻’𝘁 𝗱𝗲𝗹𝗶𝘃𝗲𝗿, 𝗜 𝗼𝗳𝗳𝗲𝗿 𝗮 𝗳𝘂𝗹𝗹 𝗿𝗲𝗳𝘂𝗻𝗱, 𝗻𝗼 𝗾𝘂𝗲𝘀𝘁𝗶𝗼𝗻𝘀 𝗮𝘀𝗸𝗲𝗱. ⭐ Top-Rated Plus ✅ 80+ jobs completed successfully ✨ Mastered Vibe and custom coding With 7 years of experience, I’ve worked across every stage of a product’s lifecycle. From shaping new ideas, fixing projects that went off track, to scaling systems for large user bases, I bring practical experience and accountability to every engagement. I’m a Mobile & Full-Stack Developer specializing in 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 and 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 apps, with strong experience building real products from design to deployment. I work with traditional stacks and emerging 𝗹𝗼𝘄-𝗰𝗼𝗱𝗲/𝗻𝗼-𝗰𝗼𝗱𝗲 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 like 𝗥𝗲𝗽𝗹𝗶𝘁, 𝗟𝗼𝘃𝗲𝗮𝗯𝗹𝗲, 𝗦𝘂𝗽𝗮𝗯𝗮𝘀𝗲, 𝗙𝗶𝗿𝗲𝗯𝗮𝘀𝗲, 𝗮𝗻𝗱 𝗕𝗼𝗹𝘁 to accelerate delivery without sacrificing quality. I use Claude (Anthropic's AI) as an active coding partner throughout my development process, pair programming with one of the most capable AI models out there. I help clients: ✅ Take over, maintain, and scale existing applications ✅ Turn Figma designs into functional UI ✅ Build admin dashboards and user interfaces ✅ Integrate backend services (auth, database, APIs) ✅ Ship mobile apps to App Store and Google Play Whether the goal is rapid prototypes, MVPs, or long-term product ownership, I focus on clarity, clean code, and predictable results. Let's have a Call or chat?

I’m Hamza a Biomedical Engineer with a passion for Embedded Systems, IoT, Electronics, and Robotics. I turn ideas into real, working prototypes and products. Whether it’s designing smart devices, building automation systems, or creating medical technology, I bring innovation to life. What I Do Best: Embedded Systems & IoT Experience with ESP32, NRF52, ATMEL, STM32, PSOC, PIC Work with Raspberry Pi, VisionFive (Linux Board), and Unihiker Programming Proficient in C/C++, Python, Java, MATLAB, JavaScript, and Flutter Connectivity & Communication Skilled in UART, I2C, SPI, MQTT, BLE, BLE Mesh, Sigfox, and Wi-Fi Hardware Design & Prototyping Specialize in PCB Design, 3D Modeling, and Product Prototyping GUI Development Develop Touchscreen Interfaces, E-Paper & TFT Displays, Web Dashboards, and Desktop Applications Work with LVGL, Tkinter, PyQt, and Kivy Framework IoT & Cloud Integration Experienced with AWS IoT, Firebase, ThingsBoard, and WebSocket-based real-time control Industrial IoT (IIoT) Expertise in CAN Communication, Factory Automation, and Smart Sensor Networks Remote Monitoring & OTA Updates Work with ESP-IDF OTA, BLE DFU, and Cloud-Based Device Management I’ve built industrial prototypes, smart sensors, automation systems, and medical devices, real-time data processing and device connectivity. If you need a reliable, high-quality solution, let’s make it happen! Let’s Collaborate!

✦✦ Upwork Top Rated Mobile App Developer ✦✦ BLE & IoT Specialist | 12+ Years’ Experience | 40+ 5⭐ Projects 👋 Hi, I’m Bhavik — your partner for Bluetooth, IoT, Beacon, NFC & Smart Device innovation. At the forefront of Bluetooth and IoT innovation, I have a proven track record of transforming complex ideas into cutting-edge mobile and embedded solutions. With over 12+ years in mobile app development and 10+ years specializing in Bluetooth, BLE, NFC, iBeacon, and AIoT technologies, I help businesses build reliable, future-ready applications. My portfolio reflects a relentless pursuit of quality, innovation, and measurable results, and I am recognized among the top Bluetooth developers on Upwork. 🔗 What I Do Best:- ✦ Architect & develop BLE / NFC-powered apps ✦ Build wearable & smartwatch apps (Apple Watch, Wear OS) ✦ Connect IoT devices seamlessly to iOS & Android ✦ Craft cross-platform apps (Flutter, React Native) & native apps (Swift, Kotlin, Objective-C, Java, SwiftUI) ✦ Backend/API with Node.js, React.js for complete product ecosystems ✦ Design & develop modern web applications (React.js, Node.js) 🚀 Industries I Transform:- ✦ Wearables & smart devices ✦ Home automation & connected living ✦ Sports & fitness tech ✦ Health & wellness platforms ✦ Automotive infotainment & in-car apps ✦ Retail, proximity services & marketing tech ✦ OTT & Media Streaming ✦ Custom SDK & API Development 🌟 My Commitment:- Your project deserves more than code — it deserves a partner who understands business impact, user experience, and the technical nuances of Bluetooth and IoT. Whether you’re launching the next-gen wearable, pioneering smart home tech, or creating new ways to connect users, I’m here to bring your vision to life. Let’s connect, innovate, and take your project from concept to success — together.