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in Moldova

6 years experience in iOS development. Good knowledge of Objective-C and Swift programming languages. Worked with different architectures such as VIP, MVVM, MVC. Experience with third-party libraries such as: Alamofire, SnapKit, Maya, Resolver (DI manager) Experience with unit tests Experience with deploying apps in the AppStore Currently learning SwiftUI and Spring Boot (Java backed framework) Recent projects I've worked on: Alfa mobile (mobile bankin app for Alfa Bank) Orange Romania (app for mobile operator) Bambini fashion (online children's clothing store)

Need a mobile product built end to end - app, backend, web, auth, real-time, shipped to the stores? That's what I do. React Native, Flutter, Supabase, Node.js. I've spent 11+ years building mobile products, and I've contributed to products at Q.ai (acquired by Apple), Arpalus (acquired by Instacart), Resonai, Polarsteps, Evooia, ShotSense Golf, Clopinz Golf, Polarsteps, Crunchyroll, and more. Today my focus is full-stack product delivery: I build the app, the backend behind it, and the pipeline that gets it live - without you having to hand off between three different contractors. ________________ 🚀 𝙒𝙝𝙖𝙩 𝙄 𝘽𝙪𝙞𝙡𝙙 🔹 Cross-platform mobile apps in React Native (Expo and bare) and Flutter 🔹 Supabase backends - Postgres schema design, Row Level Security, Auth, Storage, Realtime, Edge Functions 🔹 Node.js / NestJS APIs, webhooks, background jobs, third-party integrations 🔹 MVPs from zero to App Store / Play Store 🔹 Rescue work on stalled, inherited, or half-finished codebases 🔹 Native-to-React-Native migrations (and the reverse, when that's the right call) 🔹 Offline-first sync, push notifications, in-app purchases, Stripe billing 🔹 CI/CD with EAS, Fastlane, GitHub Actions ________________ ☑️ 𝘾𝙤𝙧𝙚 𝙎𝙩𝙖𝙘𝙠 📱 Mobile & Frontend: React Native, Expo, TypeScript, Flutter, Dart, React, Next.js, Tailwind, Zustand/Redux, TanStack Query 🗄️ Backend & Data: Supabase, PostgreSQL, Node.js, NestJS, Express, REST, GraphQL, Prisma/Drizzle, Redis, WebSockets ⚙️ Infrastructure: Docker, AWS, Vercel, EAS, Fastlane, GitHub Actions 🧩 Native (for when React Native isn't enough): Swift, SwiftUI, UIKit, Kotlin, Jetpack Compose, custom native modules and bridges ________________ ⚡ 𝙒𝙝𝙚𝙧𝙚 𝙄'𝙢 𝘿𝙞𝙛𝙛𝙚𝙧𝙚𝙣𝙩 𝙁𝙧𝙤𝙢 𝙖 𝙎𝙩𝙖𝙣𝙙𝙖𝙧𝙙 𝙁𝙪𝙡𝙡-𝙎𝙩𝙖𝙘𝙠 𝘿𝙚𝙫 Most React Native developers stop where the JavaScript stops. I don't. When a product needs the camera, sensors, on-device ML, AR, or 3D, I write the native module myself instead of hunting for an abandoned npm package. That means I can also deliver: 🔹 Camera and real-time video processing pipelines 🔹 On-device AI/ML inference (Core ML, TensorFlow Lite, ONNX) 🔹 ARKit / ARCore features inside a React Native or Flutter app 🔹 LiDAR scanning, RoomPlan, 3D reconstruction, digital twins 🔹 Pose estimation, object detection, face and body tracking 🔹 Custom SDKs distributed to other teams (iOS, Android, React Native) If any of that is on your roadmap, you've probably already discovered how few full-stack developers can actually ship it. ________________ 🗓 𝙍𝙚𝙘𝙚𝙣𝙩 𝙒𝙤𝙧𝙠 (2025–2026) • React Native and Flutter apps backed by Supabase - auth, realtime, storage, RLS • Node.js / NestJS API and webhook infrastructure running in production • Computer vision SDKs for retail and object recognition • LiDAR and RoomPlan powered spatial capture systems • Pose estimation and movement analysis for fitness platforms • Real-time AI inference running directly on mobile devices • Cross-platform SDK development for iOS, Android, and React Native ________________ 🤝 𝙃𝙤𝙬 𝙄 𝙒𝙤𝙧𝙠 I ask questions before writing code, I tell you when something is a bad idea, and I give you a straight answer on feasibility, risk, and timeline before you commit budget. Send me what you're building. I'll tell you if it's feasible, what's likely to go wrong, and how I'd approach it.

- 𝗡𝗲𝗲𝗱 𝗿𝗲𝗮𝗹 𝗶𝗢𝗦 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲, 𝗰𝗹𝗲𝗮𝗻 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲, 𝗮𝗻𝗱 𝗦𝘄𝗶𝗳𝘁𝗨𝗜 𝘁𝗵𝗮𝘁 𝗳𝗲𝗲𝗹𝘀 𝗮𝘀 𝗻𝗮𝘁𝗶𝘃𝗲 𝗮𝘀 𝗶𝘁 𝗴𝗲𝘁𝘀? 🧱📱 - 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗷𝗼𝗯 𝗽𝗼𝘀𝘁 - 𝗹𝗲𝘁’𝘀 𝗯𝘂𝗶𝗹𝗱 𝗶𝘁 𝗿𝗶𝗴𝗵𝘁. 👨🏻‍💻 🏆 𝙆𝙚𝙮 𝘼𝙘𝙝𝙞𝙚𝙫𝙚𝙢𝙚𝙣𝙩𝙨: 𝐋𝐞𝐝 𝐔𝐈 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 𝐟𝐨𝐫 𝐚 𝐆𝐥𝐨𝐛𝐚𝐥 𝐒𝐭𝐫𝐞𝐚𝐦𝐢𝐧𝐠 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 (𝟭𝟬 𝗠+ 𝘂𝘀𝗲𝗿𝘀) • Drove 100 fps rendering of 20 K+ content tiles via custom layouts & zero off-screen rendering • Evangelized best-practice UI performance in public tech talks 𝟏𝟎× 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐁𝐨𝐨𝐬𝐭 𝐟𝐨𝐫 𝐚 𝐇𝐢𝐠𝐡-𝐕𝐨𝐥𝐮𝐦𝐞 𝐁𝟐𝐁 𝐎𝐫𝐝𝐞𝐫𝐢𝐧𝐠 𝐀𝐩𝐩 • Re-architected flows handling 1 M+ records with Combine, lazy loading, and smart caching 𝐃𝐞𝐬𝐢𝐠𝐧𝐞𝐝 𝐄𝐧𝐝-𝐭𝐨-𝐄𝐧𝐝 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 𝐟𝐨𝐫 𝐚 𝐆𝐞𝐨-𝐒𝐨𝐜𝐢𝐚𝐥 𝐍𝐞𝐭𝐰𝐨𝐫𝐤 • Scalable AWS backend, real-time chat, rich location filters, notifications, and mobile clients 𝐀𝐩𝐩𝐥𝐢𝐞𝐝 𝐂𝐨𝐦𝐩𝐮𝐭𝐞𝐫 𝐕𝐢𝐬𝐢𝐨𝐧 𝐟𝐨𝐫 𝐏𝐞𝐫𝐟𝐞𝐜𝐭-𝐅𝐨𝐫𝐦 𝐅𝐢𝐭𝐧𝐞𝐬𝐬 𝐓𝐫𝐚𝐜𝐤𝐢𝐧𝐠 • Push-up detector delivering daily challenge feedback on-device 𝐃𝐞𝐩𝐥𝐨𝐲𝐞𝐝 𝐚𝐧 𝐀𝐑 + 𝐂𝐕 𝐏𝐫𝐨𝐝𝐮𝐜𝐭-𝐑𝐞𝐜𝐨𝐠𝐧𝐢𝐭𝐢𝐨𝐧 𝐒𝐃𝐊 𝐟𝐨𝐫 𝐑𝐞𝐭𝐚𝐢𝐥 • YOLO-based shelf scanning with 3-D bounding boxes, panoramic image assembly, and Google Cloud/BigQuery data pipeline 𝐒𝐡𝐢𝐩𝐩𝐞𝐝 𝐚 𝐂𝐫𝐨𝐬𝐬-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐕𝐢𝐝𝐞𝐨-𝐄𝐝𝐢𝐭𝐢𝐧𝐠 𝐀𝐩𝐩 𝐟𝐨𝐫 𝐂𝐫𝐞𝐚𝐭𝐨𝐫𝐬 • Automatic clip slicing from transcripts; custom native bridges for low-latency video stitching in React Native 𝐁𝐮𝐢𝐥𝐭 𝐚 𝐧𝐞𝐱𝐭-𝐠𝐞𝐧 𝐀𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬 & 𝐁𝐮𝐠-𝐓𝐫𝐚𝐜𝐤𝐢𝐧𝐠 𝐒𝐃𝐊 • Rolling screen-record buffer (last 30 s – 3 min) with live markup • Offline telemetry capture, low-level video compression, and seamless sync 𝐂𝐫𝐞𝐚𝐭𝐞𝐝 𝐚 𝐆𝐚𝐦𝐢𝐟𝐢𝐞𝐝, 𝐋𝐨𝐜𝐚𝐭𝐢𝐨𝐧-𝐁𝐚𝐬𝐞𝐝 𝐅𝐢𝐭𝐧𝐞𝐬𝐬 𝐀𝐩𝐩 • Real-time capture of walking/running paths across MapKit, Google Maps, and Mapbox using H3 indexing and multithreaded reactive pipelines ➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖ 𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐭𝐮𝐫𝐧 𝐭𝐡𝐞𝐬𝐞 𝐚𝐜𝐡𝐢𝐞𝐯𝐞𝐦𝐞𝐧𝐭𝐬 𝐢𝐧𝐭𝐨 𝐲𝐨𝐮𝐫 𝐚𝐩𝐩’𝐬 𝐬𝐮𝐜𝐜𝐞𝐬𝐬? → Invite me to your job on Upwork to schedule a 🆓 discovery call! ➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖ 🆘 𝙒𝙝𝙖𝙩 𝙄 𝘾𝙖𝙣 𝘿𝙤 𝙛𝙤𝙧 𝙔𝙤𝙪: 📌 App Development: Design, develop, and maintain robust iOS applications using Swift or Objective-C. 📌 User Interface Design: Implement intuitive and engaging user interfaces that adhere to Apple’s Human Interface Guidelines. 📌 Performance Optimization: Ensure applications are optimized for performance, scalability, and responsiveness. 📌 Feature Integration: Utilize iOS’s native APIs to incorporate device-specific features such as GPS, camera, sensors, and more. 📌 Testing and Debugging: Conduct thorough testing to identify and fix bugs, ensuring app stability and reliability. 📌 Version Control: Use version control systems like Git to manage and collaborate on code. 📌 App Deployment: Handle the deployment of applications to the Apple App Store, including compliance with store guidelines. 📌 Continuous Improvement: Stay updated with the latest industry trends, iOS updates, and new technologies to continuously enhance app functionality and user experience. 𝗦𝗸𝗶𝗹𝗹𝘀 𝗮𝗻𝗱 𝗤𝘂𝗮𝗹𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀: 🔸Proficiency in Swift and Objective-C programming languages. 🔸Experience with Xcode and the iOS SDK. 🔸Knowledge of RESTful APIs and third-party libraries. 🔸Familiarity with cloud message APIs and push notifications. 🔸Strong understanding of mobile UX/UI principles. 🔸Excellent problem-solving skills and attention to detail. 🔸Ability to work collaboratively in a team environment. 𝗞𝗲𝘆 𝗦𝗸𝗶𝗹𝗹𝘀: 📲 iOS Development: Swift Programming, Objective-C, Xcode, Interface Builder, UIKit, Auto Layout, Core Data, Core Animation, SwiftUI, Combine, iOS Human Interface Guidelines, Core Bluetooth, Multithreading, Unit Testing, Debugging, App Store Submission, In-App Purchases, Performance Optimization, Dependency Management (CocoaPods, Carthage), Push Notifications, Localization, Facebook SDK, Google SDK, Firebase, Redux, TCA, Mapbox. 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗷𝗼𝗯 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 - 𝘁𝗲𝗹𝗹 𝗺𝗲 𝘆𝗼𝘂𝗿 𝘁𝗼𝘂𝗴𝗵𝗲𝘀𝘁 𝗶𝗢𝗦 𝗰𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲, 𝗮𝗻𝗱 𝘄𝗶𝘁𝗵𝗶𝗻 𝟮𝟰𝗵 𝗜’𝗹𝗹 𝗿𝗲𝘁𝘂𝗿𝗻 𝗮 𝗰𝗹𝗲𝗮𝗿, 𝗲𝘅𝗲𝗰𝘂𝘁𝗮𝗯𝗹𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗽𝗹𝗮𝗻. 🚀

- Experience with C/C++, QT/QML, C# .NET - Python specialist - Java, Kotlin - iOS platform programming (Social networks , REST API`s , Location services , Data Storage , WatchKit etc) using Objective-C , Swift - Android programming - Web development (Python/Django/Flask/Odoo, Spring, HTML5 , CSS3 , basic PHP , JS) - ASM (for MCU programming ) - AVR, MSP430, ARM microcontrollers programming - Analog and digital electronics

Hello there! My name is Alex and I’m an iOS Developer (Swift) from Moldova. I have more than 4 years of experience with Swift. I've worked with numerous apple and third-party frameworks in Swift (Alamofire, SwiftyJSON, SDWebImage, Realm, etc...). I have a passion to create wonderful Apps that appeal to users needs and senses. I am a self-starter and my aim is to provide an upright work that deems to satisfy you. Looking forward to work with you. Thanks, Alex.

Hey there! 👋 My name is Serghei and I'm a iOS and React Native developer with over a decade of experience. I have built and launched multiple personal apps in the App Store, have done various freelance projects and worked in multiple software companies like Crunchyroll and Disney+. If you want a developer that: 👷‍♂️ Will build the exact app that you're imagining 👁️ Has a good eye for detail and user experience 💸 Brings over 12 years of knowledge for an affordable price 📞 Will keep you in the loop every step of the way then I'm the developer you want! I've had experience building, maintaining and enhancing sophisticated projects in areas like: ✅ FinTech ✅ Shopping ✅ Ride sharing ✅ Video streaming and Video on demand ✅ Entertainment If you want more proof, look at the projects in my portfolio down below. Drop me a message and let's make your apps come to life!