I’m a Senior iOS Developer with 10+ years of professional experience and an MS in Computer Science. I help companies design, build, and scale high-quality iOS applications that are reliable, intuitive, and crash-free. 🚀 What I Bring Proven iOS Expertise – Swift, SwiftUI, Objective-C, and cross-platform (React Native, Kotlin). BLE Mesh & Firmware Communication – Experience developing apps that integrate with BLE Mesh lighting systems and embedded firmware, including device provisioning, node status monitoring, and OTA updates. End-to-End Delivery – From architecture & development to App Store release & maintenance. Payments & Fintech – Integrated Apple Pay, Revolut Pay, VISA SDKs and built secure banking solutions. Performance & Testing – Increased code coverage from 20% → 75% and delivered 99% crash-free user rate. Agile Collaboration – Worked with international teams in Agile/Scrum, mentored juniors, and led technical interviews. 🏆 Highlights Travel & Flight Booking App – migrated core pages from Objective-C to SwiftUI, integrated payment SDKs. Firebase integration, Remote Config & Analytics & Crashlytics. iOS Banking App – led full rebuild with modular architecture, achieving 80%+ test coverage. Indoor AR Navigation App – developed custom pedometer & beacon-based positioning system for a large hospital. BLE Mesh Lighting Control App – built iOS app for provisioning, controlling, and monitoring BLE Mesh devices with firmware-level communication. 🔧 Tech Stack iOS: Swift, SwiftUI, Objective-C, XCTest, XCUITest, Snapshot Testing Connectivity: BLE Mesh, Bluetooth Low Energy, Firmware Communication, OTA updates Backend & Cloud: Node.js, Flask, FastAPI, AWS, Azure, Docker, Kubernetes ML/AI: TensorFlow, PyTorch, Generative AI, Computer Vision, Medical Imaging ✅ If you need a reliable senior engineer who can deliver production-ready, scalable apps, let’s connect. I can help with new builds, app modernization, bug fixing, and advanced features like BLE Mesh integrations, payments, AI, or cloud backends. Below I am sharing a few categories of apps that I have developed from scratch. *Flight Booking Application * Online Payment Application * Banking Application * Fintech Application * Navigation and Indoor Navigation Application * Image processing *Bluetooth Mesh *Bluetooth - BLE * Document Management && E-sign Application * E-commerce Application * Beacon Based Application * Photo Editing Application

I am a Full Stack Developer with hands-on experience in: - IoT & Embedded Systems (BeagleBone, Raspberry Pi, Linux) - AI Integration & Automation - React Native & Flutter mobile apps - Web Development (React, Node.js) - Real-time systems & hardware control - Tailscale & remote device management I have built and deployed production IoT systems for medical devices, including light therapy pods with PWM control, GPIO management, and remote SSH access via Tailscale. I deliver clean, documented code and am available for long-term contracts.

👉𝑀𝑦 𝑐𝑟𝑒𝑒𝑑: "𝑪𝒓𝒆𝒂𝒕𝒆 𝒔𝒎𝒂𝒓𝒕, 𝒓𝒂𝒕𝒉𝒆𝒓 𝒕𝒉𝒂𝒏 𝒐𝒗𝒆𝒓𝒘𝒉𝒆𝒍𝒎𝒆𝒅". 𝑇𝑜 𝑠𝑢𝑐𝑐𝑒𝑠𝑠𝑓𝑢𝑙𝑙𝑦 𝑙𝑎𝑢𝑛𝑐𝘩 𝑎 𝑝𝑟𝑜𝑑𝑢𝑐𝑡 𝑤𝑖𝑡𝘩𝑜𝑢𝑡 𝑠𝑝𝑒𝑛𝑑𝑖𝑛𝑔 𝘩𝑢𝑛𝑑𝑟𝑒𝑑𝑠 𝑜𝑓 𝑡𝘩𝑜𝑢𝑠𝑎𝑛𝑑𝑠 𝑜𝑓 𝑑𝑜𝑙𝑙𝑎𝑟𝑠 𝑎𝑛𝑑 𝑦𝑒𝑎𝑟𝑠 𝑜𝑓 𝑙𝑖𝑓𝑒. 𝑌𝑜𝑢 𝑜𝑛𝑙𝑦 𝑛𝑒𝑒𝑑 𝒕𝒘𝒐 𝒄𝒐𝒎𝒑𝒐𝒏𝒆𝒏𝒕𝒔: 𝒂 𝒄𝒍𝒆𝒂𝒓 𝒑𝒍𝒂𝒏 𝒂𝒏𝒅 𝒕𝒆𝒂𝒎𝒘𝒐𝒓𝒌. 🏆 Top Rated Plus Upwork Freelancer 🕓 200k Earning + 9K hours worked + 60+ jobs successfully completed ⭐ 5-star reviews from happy customers 🎯 100% Job Success-oriented work 💬 Open-minded person, ready to learn anything, easy to work with 👉 Successfully delivered domains : ➤ Restaurant Apps (Order Booking & Tracking) ➤ Taxi Booking App / Uber clone ➤ Social Networking/Dating App ➤ Photo/Video Editing ➤ GPS ➤ Audio Apps (YouTube API) ➤ Streaming( audio & video) ➤ PDF Converting App ➤ Cloud-based mobile applications 👉 I will be glad to provide the following services (including, but not limited to): ➤ Working on customer needs and converting them into technical requirements ➤ Support of the entire application lifecycle (concept, design, test, release, and support) ➤ Producing fully functional mobile applications with clean code ➤ Designing interfaces for better user experience ➤ Writing unit and UI tests to identify malfunctions ➤ Troubleshooting and debugging to optimize performance ➤ Ensuring the correct linking of the backend and frontend ➤ Implementation of new and further existing apps development ➤ Ensuring new and legacy applications to meet quality standards ➤ Keeping up to date with the terminology, concepts, and best practices for coding mobile apps ➤ Cooperation with function designers, UX /UI designers, and programmers ➤ Consulting the customer`s development team 👉 Technologies I use: ➤ iOS: Swift/Objective C ➤ Android: Java/Kotlin ➤ Cross-platform: Flutter (Dart) ➤ React Native & Hybrid: HTML5, CSS3, JavaScript ➤ Design: Figma/Sketch/Invision/AdobeXD ➤ Cloud services: Firebase, AWS ➤ Persisting Data: Realm Database, Cloud Firestore, SQLite ➤ IDE: Android Studio, Xcode ➤ Control Versions: GitHub, Bitbucket ➤ Architecture: MVVM, MVP, clean code ➤ Professional software engineering tools and methodologies ➤ Equipped to work with IoT dev kits, prototypes, serial console interfaces, etc. ➤ PHP/Java ➤ Parse SDK. ➤ Node.js 👉 Top Business Category / Verticals that we have worked for: ➤ Chat apps (QuickBlox, OpenTok, TokBox,Firebase, XMPP, Firebase) ➤ Fitness/workout ➤ Taxi/GPS ➤ Streaming( audio & video) ➤ Mobile Websites ➤ eCommerce Solution & in-app purchases, point-of-sale tools ➤ Enterprise Mobility Solutions ➤ Food ordering apps ➤ Cloud-based mobile applications ➤ Social networking with GPS, Maps, Chat, Event, Comment, Media Sharing ➤ Apps for all types of IoT devices and wearables using Bluetooth Classic, BLE, and WiFi ➤ Photo/Video Editing & Sharing with Social ➤ Web Service Development using PHP/MySQL, JSON, XML, RSS. ➤ iAd, Revmob, Chartboost ➤ Github, SVN, and JIRA. ➤ Google Map Service, Apple Map ➤ QR code, Bar code ➤ AV Foundation 👉 MY WORKING HOURS: 9 am - 6 pm (IST Time Zone), Monday – Friday (except Holidays). If this suits you and you are looking for the best quality and expertise in Mobile App design and development, just contact me and we will create an amazing product for your clients. :) 🌻 Thanks for your time and good luck!

Need a Scalable Architecture or Custom AI Integration? I help startups and enterprises build robust, production-ready digital products that scale, automate workflows, and cut operations costs. As the CTO and Lead Architect at 23devs (Top-Rated Plus agency, 100% JSS, 250+ projects), I provide more than just clean code — I deliver technical strategy, AI-driven innovation, and a vetted team ready to execute. 🚀 WHAT I BRING TO YOUR PROJECT — ARCHITECTURE FIRST: I design high-load, maintainable systems from scratch (Node.js, PHP, Cloud Infrastructure). - AI & AUTOMATION STRATEGY: I integrate OpenAI, Azure, Gemini, and Claude to build Smart AI Agents, custom OCR data extraction, and streamline workflows using n8n and Make. — MOBILE EXCELLENCE: High-performance apps for iOS & Android utilizing Flutter, Swift, Kotlin and Kotlin Multiplatform (KMP). — BUSINESS SYSTEMS: Deep expertise in CRM, Bitrix / Bitrix24, and custom ERP systems. 🔹 CORE TECHNICAL EXPERTISE: - BACKEND & CLOUD: Node.js, PHP (Laravel, CakePHP, WordPress, CodeIgniter), Firebase, Supabase. - FRONTEND: Expert-level Angular, Vue.js, TypeScript. - DATABASES: PostgreSQL, MySQL, MongoDB. — MOBILE: Swift, Kotlin, Flutter, and Kotlin Multiplatform (KMP), Objective-C, Java. - AI & INTEGRATIONS: OpenAI API, LangChain, n8n, Make, Custom REST/GraphQL APIs. 👥 THE POWER OF A TEAM, THE FOCUS OF AN EXPERT When you hire me, you get my personal architectural oversight and CTO-level strategy. Need to scale? We can transition from a solo expert to a dedicated team (UI/UX, QA, DevOps) within days, backed by our Top-Rated Plus agency resources. Let’s turn your vision into a scalable reality. Click "Invite" to schedule a brief 10-minute discovery call.

🌟 Top Rated on Upwork 🏅 100% Job Success on Upwork 🏆 8 years experience in Mobile & Web Development I am an experienced mobile and web app developer with strong knowledge of iPhone-Android AI-powered solutions (Objective C, Swift, SwiftUI, iOS SDK, Java, Kotlin, Android, React Native) I am expert in the backend like (AWS, Azure), Firebase, web service and restful web service, AWS s3, AWS EC2 setup, RDS Mobile App Development =================== SwiftUI, Kotlin, Java, Dart Front-End Development =================== React.js , JavaScript, TypeScript, HTML5, CSS3 Redux, React Hooks, Redux-Saga, Flux Tailwind CSS, Material-UI, React Bootstrap, Styled Components Back-End Development =================== Python (Django, Flask, FastAPI), Node.js Express, Nest.js AI Integration: OpenAI, AI Agents, Chatbots, LLM-based apps RESTful APIs, WebSockets, real-time communication Secure authentication, complex business logic, scalable architecture Third party Integrations =================== Integrations & APIs Stripe
Twilio
Google Maps
SendGrid AI & Automation ============= AI Chatbots, AI Agents, LLM Integrations (OpenAI, GPT) Conversational AI, prompt engineering, workflow automation AI-powered SaaS tools, assistants, and business automation systems API integrations for AI-based features in web & mobile apps 
Debugging & Testing: ================ Xcode, Android Studio, TestFlight, Firebase Crashlytics Web and Mobile App UI/UX Design: ============================ Figma, Adobe XD, Sketch, Photoshop Industries I have worked with: ============================ - AI-powered Applications & Automation Tools - E-commerce & Marketplaces - Healthcare & Fitness Apps - Financial & Blockchain Apps - Social Media & Event Platforms - Geo-location & Location-based Services - Live Media Streaming & Instant Messaging - Wearable Tech & Custom Apps - Stripe Integration & Payment Gateways Additional ======= - Rork - Cursor AI - Claude AI - Lovable.dev - Git - Svn - Bitbucket - TestFlight - Firebase Crashlytics I will follow an agile methodology and I will do weekly scrum meeting as well as daily updates Project Managment tools ===================== - Asana - Trello - Jira - Clickup Looking forward to working with you Rajal

Enthusiastic software developer. I have started programming since 2003 while I had been studying at school. Since that time programming become my lovely work. My Skills: – Swift, Objective-C, JavaScript, C/C++, Ruby, Java, Python, PHP, ActionScript – iOS, visionOS, watchOS, tvOS, macOS, Android, Node.js, Ruby on Rails – SwiftUI, UIKit, Storyboards, Xib, SnapKit, AVFoundation – Game Development: Unity (Unity3d), Cocos2d, SpriteKit, Metal – AR - Augmented Reality: ARKit, ARCore, RoomPlan, SceneKit – Xcode, AppCode, IntelliJ IDEA, Android Studio – AI tools / agents: Claude Code, Codex, Cursor – Git, Mercurial, SVN – Github, Bitbucket, Gitlab – CocoaPods, Carthage, Swift Package Manager – Fastlane, SwiftLint – TDD/BDD: XCTest, Quick, Nimble, Unit tests, UI tests – SwiftData, CoreData, Realm, SQLite, MySQL – Swift Concurrency (Async/Await, Tasks, Actors), Combine – Clean Architecture, MVVM, FRP, RxSwift – Firebase (Firestore, Realtime Database, Authentication, Functions, Storage, Remote Config, Analytics), Supabase, AWS – API integration: Facebook, Twitter, Instagram, Venmo, Coinbase, Google Maps and many other

Hello 👋! I am a Full Stack Developer who can handle all aspects of web development and mobile app development with ios and android native platforms on a different range of Applications including Health, E-commerce, Travel, Social, Trading, Widgets, Watch, Utility and more. I understand the importance of creating highly readable and easily maintainable source code. I did many projects with excellent results. I believe in delivering the best possible solution to give you a state-of-the-art app experience to beat your competitors. 🌟 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗦𝗸𝗶𝗹𝗹𝘀 📱 🖥 🔥 Mobile: iOS (Swift, Objective C), Android (Kotlin, Java), Hybrid (React Native, Flutter) 🔥 Web: React.js, Node.js, TypeScript, PHP, Laravel 🔥 Databases: MySQL, SQLite, MongoDB, Firebase 🔥 Google & Amazon Cloud 🔥 UI/UX tools - Figma, Adobe Photoshop 🌟 𝗦𝗲𝗿𝘃𝗲𝗿𝗹𝗲𝘀𝘀 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗦𝗸𝗶𝗹𝗹𝘀 💻 📱 ✔ Firebase:- Authentication, Database, Firestore DataBase, Ad-Mob, FCM, Cloud Messaging, Crashlytics, Analytics. ✔ AWS (Amazon Web Services):- EC2 Instance, Cognito, S3, SNS, Lambda, DynamoDB, API Console, Cloud Formation. 🌟 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗶𝗻 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗧𝗼𝗼𝗹𝘀 🛠 🔨 ✔ Repositories:- Github, GitLab, BitBucket, AWS CodeCommit ✔ Version Control System:- GitLab, GitHub ✔ CI/CD Pipelines: Setting up smooth Continuous Integration/Delivery workflows for rapid deployment. 🛒𝗲𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻 💻 📱 🔥 Online store with delivery services for Fashion, Beauty, FMCG Industry 🔥 Scheduled booking service with delivery options for Tours-Travel, Bakery and Floristry business 🔥 B2B and B2C service app with inventory management solution 🔥 B2B auction platform for businesses and individuals 🔑 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲𝗱 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 📱💻 🔥 Scanning Feature: QR & Barcode Scanners 🔥 Notification: Scheduled Local & Push Notifications 🔥 AI Integrations: OpenAI, Text-to-speech & Speech-to-text 🔥 Payment Integration: Implementing secure payment systems using Stripe, PayPal, and subscription services Integrations. 🔥 Location-Based Services: Proficient in Google Maps API, real-time tracking, and geolocation features. I'm looking forward to knowing more about your app idea to bring it to life! 🚀 Want to discuss your project? I'm happy to jump on a call to discuss things further! Thanks! 🤝𝗧𝗲𝘀𝘁𝗶𝗺𝗼𝗻𝗶𝗮𝗹𝘀🤝 ⭐ "Nik is very good at what he does. I worked with him for 2+ years and it was a very good experience. He is competent and adaptable to the dynamic needs of a growing business. It's hard to find honest contract help. With Nik you don't have to worry." ⭐ "An amazing talent and always on hand to help me with new JavaScript projects. Thank you :)" ⭐ "Nikhilesh is one of the best developers i have ever worked with, he takes responsibility for issues which arise and takes the initiative to go above and beyond any requirement. Will be using him again" ⭐ "An excellent job, completed successfully and quickly. Thanks!" ⭐ "Nikhilesh did a great job and I wholeheartedly recommend him." ⭐ "Nikhilesh worked well, adjusting to the project as the parameters changed. Very responsive to feedback and very adept at implementing those changes. Would certainly recommend his services." ⭐ "Freelancer stuck to his commitment and worked to adjust aspects of the project to reach completion. Would definitely recommend :)"

Senior Full Stack & Mobile App Developer | 15+ Years of Experience I specialize in building scalable Web, Mobile, and Real-Time Communication applications from scratch as well as enhancing existing products with modern technologies and best practices. Core Expertise Frontend: React.js, Next.js, Vue.js, Angular, TypeScript, JavaScript Backend: Node.js, Laravel, PHP Mobile: React Native, Swift, SwiftUI, Kotlin Databases: MySQL, MongoDB, Redis, Firestore WebRTC & Real-Time Solutions Experienced in developing secure video conferencing and messaging platforms using MediaSoup, Jitsi, Twilio, XMPP, Ejabberd, and Erlang. API & Payment Integrations Firebase, Google APIs, Facebook API, Adobe API, Stripe, PayPal, Braintree, Flight Tracking API, Foodics API, and more. I focus on delivering clean architecture, scalable solutions, and high-quality code with clear communication and a commitment to long-term client success. Available for Web Development, Mobile Apps, SaaS Platforms, API Integrations, and WebRTC-based Solutions. Let's build something exceptional together.

I am a passionate and highly skilled Mobile App Developer with expertise in cross-platform mobile development, particularly in native iOS, Android, Flutter, React Native and backend-admin-APIs. With extensive experience in building robust and user-friendly apps, website and backend , I specialize in creating high-performing, scalable, and maintainable native and cross-platform applications and backend. Whether you need a feature-rich app or a seamless cross-platform solution, I offer end-to-end development services from ideation and design to coding, testing, and deployment. I am committed to delivering top-notch apps with exceptional user experiences, clean code, and optimal performance. 🔹 What I Offer: ✅ Custom mobile app development (Android & iOS) ✅ Cross-Platform Development:Flutter, React Native, Expo, JavaScript, TypeScript ✅ UI/UX Design: Building intuitive, responsive, and visually appealing interfaces ✅AI-powered app development (Chatbots, AI-driven automation, ML integration) ✅ Integration of AI APIs (OpenAI, TensorFlow, Firebase ML, etc.) ✅Backend Integration: REST APIs, GraphQL, Firebase, Axios ✅Testing: Jest, Detox, and unit/integration testing ✅Version Control: Git, GitHub, Bitbucket ✅ Publishing apps on App Store & Google Play 🎯 Why Work With Me? ✔ AI-driven mobile solutions to enhance user experience ✔ Clean, efficient, and scalable code ✔ On-time delivery & clear communication ✔ Full-cycle development from idea to launch ✔Meeting deadlines Let’s connect and bring your vision to the mobile world!

I'm Kiran Jamod on Expert iOS Developer / Android Developer / Flutter Developer with extensive experience in building application. My experiences range from building on demand application, redevelopment, bug fixes and support. It's important to me to build long term relationships with clients, so I'm primarily looking for long term projects. I'm flexible with my working hours and am happy to work closely with any existing freelancers you work with. ♛♛ Specialties ♛♛ ➽ Languages ✔ Objective-C, Swift, Android, C++, HTML5, SQL, Java, JavaScript, XML, C, PHP ➽ Platforms ✔ Windows, Ubuntu, Android, Linux, iOS, Firebase ➽ Frameworks ✔ Cocoa Touch, Android SDK, Laravel, Codeigniter, Magento, WordPress, CakePHP, AngularJS, NodeJS ➽ Tools ✔ FileZilla, PHP Storm, Sublime, Notepad++, WinSCP, Adobe Photoshop, Adobe Illustrator, Xcode, Android Studio, Gradle, Android NDK, Git, JIRA, Collada, BitBucket, Trello, Asana, Google Analytics, GitHub ➽ Paradigms ✔ Pixel Perfect Code, Search Engine Optimization (SEO), User experience design, Object-oriented Design (OOD), REST, Web App Development, Procedural programming, Design Patterns, Rapid prototyping, Cross-platform Development, Plugin-Based Architecture, Network programming, Unit Testing, Agile, Test-driven Development (TDD), Rule-based programming ➽ Libraries/APIs ✔ Google Analytics API, SQLite, PayPal/PayTM/PayUMoney/InstaMojo Payment integration, GSON, Firebase Android SDK, Facebook Open Graph API, Twitter API, Android API, OpenGL, Google Maps API, Google Calendar API, Picasso, Retrofit, OkHttp, WebSockets, NineOldAndroids, GitHub API, Jackson, Parse Android SDK, Amazon WS, Flipkart API, Instagram API. ➽ Misc ✔ Database Design, User Interface (UI), AJAX, API Integration, Graphic Design, Icon Design ➽ Storage ✔ Magical Record, Realm, MySQL, Database Modeling ♛♛ Strong Qualities ♛♛ ✔ Good communication skills ✔ Take ownership ✔ Respect deadlines ✔ Deliver quality ✔ Realistic ✔ Know own limitation