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!
iOS Development
Apple Xcode
Objective-C
Swift
MongoDB
Test-Driven Development
React Native
TypeScript
NodeJS Framework
Redux
SwiftUI
MapKit
Alex C.
Chisinau, Moldova
$100/hr
5.0
31 jobs
If your roadmap includes ARKit, Computer Vision, LiDAR, RoomPlan, or Spatial Computing, you're probably not looking for a typical mobile developer.
You're looking for someone who has already solved similar problems.
Over the past few years, I've had the opportunity to contribute to products built by startups and established companies including Q.ai (acquired by Apple), Arpalus, Resonai, Polarsteps, Evooia, ShotSense Golf, and Clopinz Golf, working on challenges involving ARKit, Computer Vision, Spatial Computing, mobile SDKs, and performance-critical native applications.
________________
I specialize in ARKit, Computer Vision, Spatial Computing, LiDAR scanning, RoomPlan, and real-time AI pipelines running directly on mobile devices.
Over the last 10+ years I've built native iOS and Android products, but my primary focus today is helping startups and product teams solve difficult technical challenges involving ARKit, Computer Vision, Machine Learning, 3D Reconstruction, and Spatial Computing.
Whether you're building an AR experience, a scanning solution, a digital twin platform, a fitness product powered by pose estimation, or a custom Computer Vision SDK, I can help take it from prototype to production.
_________________
𝙃𝙞𝙜𝙝𝙡𝙞𝙜𝙝𝙩𝙨
✅ 10+ years building native mobile products and SDKs
✅ 5+ years focused on ARKit, Computer Vision, and Spatial Computing
✅ Delivered production applications using ARKit, RealityKit, Core ML, Vision Framework, ARCore, OpenCV, and custom Computer Vision pipelines
✅ Built solutions involving LiDAR scanning, RoomPlan, floor-plan generation, object detection, pose estimation, face tracking, body tracking, and scene understanding
✅ Extensive experience optimizing ARKit and Computer Vision pipelines to run smoothly on real devices at production scale
✅ Rapid prototyping and proof-of-concept development for technically risky products
_________________
🆘 𝙒𝙝𝙖𝙩 𝙄 𝘾𝙖𝙣 𝘿𝙤 𝙛𝙤𝙧 𝙔𝙤𝙪:
🔹 ARKit applications
🔹 Computer Vision mobile apps
🔹 ARKit SDKs and mobile SDK development
🔹 LiDAR scanning solutions
🔹 RoomPlan integrations
🔹 Floor plan generation systems
🔹 3D reconstruction pipelines
🔹 Spatial Computing applications
🔹 Object detection and object tracking
🔹 Pose estimation systems
🔹 Fitness and motion analysis products
🔹 Digital twin platforms
🔹 Real-time camera processing pipelines
🔹 AI-powered mobile applications
🔹 Native iOS and Android products
_________________
☑️ 𝘾𝙤𝙧𝙚 𝙎𝙠𝙞𝙡𝙡𝙨 & 𝙏𝙚𝙘𝙝𝙣𝙤𝙡𝙤𝙜𝙞𝙚𝙨:
Apple Ecosystem:
Swift, ARKit, RealityKit, Vision Framework, Core ML, AVFoundation, Metal, Core Bluetooth, SwiftUI, UIKit, RoomPlan, LiDAR
📲 Android Ecosystem:
Kotlin, ARCore, CameraX, MediaPipe, Jetpack
👁️🗨️ Computer Vision & AI:
Computer Vision, OpenCV, Core ML, ONNX, TensorFlow Lite, Object Detection, Pose Estimation, Image Processing, Face Tracking, Body Tracking, Machine Learning
🧊 Spatial Computing:
ARKit, Spatial Computing, RoomPlan, LiDAR Scanning, Digital Twins, 3D Reconstruction, Photogrammetry, Scene Understanding, Spatial Mapping.
_________________
🗓 𝙄𝙣 𝙖 𝙉𝙪𝙩𝙨𝙝𝙚𝙡𝙡 - 𝙅𝙪𝙨𝙩 2025 -2026 𝙃𝙞𝙜𝙝𝙡𝙞𝙜𝙝𝙩𝙨:
• ARKit-based indoor scanning and floor-plan generation
• LiDAR and RoomPlan powered spatial capture systems
• Computer Vision SDKs for retail and object recognition
• ARKit product placement and visualization applications
• Pose estimation and movement analysis for fitness platforms
• Face tracking and biometric measurement solutions
• Real-time AI inference pipelines running directly on mobile devices
• Custom SDK development for iOS, Android, and React Native integration
_________________
I enjoy solving problems that other teams consider too complex, too experimental, or too performance-sensitive for traditional mobile development.
Send me the challenge. I'll tell you if it's feasible, what can go wrong, and how I'd approach building it.
Last updated: June 2026
iOS
Swift
ARKit
RealityKit
Core ML
Computer Vision
OpenCV
Machine Learning
Kotlin
Android
ARCore
Algorithm Development
Research & Development
Native App Development
Augmented Reality
Artificial Intelligence
Image Processing
Lidar
3D Modeling
SDK
Mohammed A.
Chisinau, Moldova
$20/hr
4.8
47 jobs
⚡️ Top 3% on Upwork ⚡️ 7000+ hours ⚡️ 100% Job Success
🔸️ 9+ years of experience 🔸️ 20+ projects done 🔸️ 15+ apps built from scratch
Feedback about working with me:
⭐️⭐️⭐️⭐️⭐️ "What I liked about working with Mohammed is that he was enthusiastic about the project and clear in his communication. Before implementing something he would make sure he understood the task correctly. (This is a feature I look out for in freelancers as it can potentially save you lots of money and frustration)"
⭐️⭐️⭐️⭐️⭐️ "A very good developer to work with, very skilled, punctual, and has very friendly behaviour, and very good communication skill also. Also like to hire next time."
⭐️⭐️⭐️⭐️⭐️ "Mohammed has ample skills to get the project done in timely fashion. Adheres to schedule and provided us with alternate solution which wasn't the scope of work. Happy to hire him again"
⭐️⭐️⭐️⭐️⭐️ "Great developer with good skills in Android development.
He understood the project requirements and brought up good suggestions. And plus he is always available.
I highly recommend him and will continue working with him on some other project."
⭐️⭐️⭐️⭐️⭐️ "Mohammed is a very skilled and careful programmer. His work was very thorough and detailed"
⭐️⭐️⭐️⭐️⭐️ "Mohammad was one of our better employees. Mohammad's strength is hard work and perseverance - he tries to solve problems, not avoid them. I wish Mohammad good luck in his future ventures and hope to work with him again."
⭐️⭐️⭐️⭐️⭐️ "Mr. Muhammed is one from the best android developers worked with, he did very difficult project with multiple scenarios, i hope to work with him in my future projects."
⭐️⭐️⭐️⭐️⭐️ "Mohammed is very skillful. Tracks and corrects the end-to-end process, with ideas and solutions that make a better final result."
⭐️⭐️⭐️⭐️⭐️ "Great again,
Probably the best professional we have hired.
Thanks again."
⭐️⭐️⭐️⭐️⭐️ "Highly talented developers can be hard to find. He is one of the best developers i've found.
His communication was top-notch, he met all deadlines, and his skills were reasonably strong"
⭐️⭐️⭐️⭐️⭐️ "all perfect, thanks!"
⭐️⭐️⭐️⭐️⭐️ "Good work. We will continue working with him."
Why Hire Me?
💫 Your project is in capable hands, with clean, maintainable code built with best practices, ensuring your investment is maximized and not wasted.
💫 I prioritize your requirements and only take on projects if I can deliver 100% satisfaction.
💫 I ensure timely project completion by keeping track of schedules, deadlines, and your needs.
💫 I listen to your needs and provide solutions aligned with your business goals.
About me:
My name is Mohammed, and I am an Android/IOS Developer, highly skilled in native app development with 9+ years of experience designing, building, and customizing apps for various domains such as Hotel Management, Freight forwarding & shipping software solutions, Payment System, Doctor Booking, Health, and Fitness, Food Industry, Social Media Apps, Dating App, Productivity Apps, Service Providers, etc. I have the passion to help you complete your project in the best possible way.
My Mobile Development skills include expertise in:
🔸️ C++ / Java / Kotlin / Swift / Javascript
🔸️ Native Android / IOS Development
🔸️ Cross-Platform - KMM / React Native
🔸️ XML && Jetpack Compose
🔸️ XCode Storyboard && SwiftUi
🔸️ Android widgets
🔸️ Android Jetpack libraries
🔸️ Android app modularization
🔸️ App Security
🔸️ App Architecture patterns such as MVC, MVP, MVVM, Delegate swift
🔸️ Phone/Tablet && Wear OS && Android TV/ AndroidAuto && Android widgets
🔸️RSocket
🔸️ WebRTC
🔸️ Dagger/Hilt
🔸️ Rx (Java, Kotlin)
🔸️ Kotlin Coroutines
🔸️ Local Database management with SQLite, Realm, ORMLITE, Room
🔸️ working with APIs (Retrofit, Volley, okhttp3, Ktor)
🔸️ working with real-time APIs (WebSockets, XMPP, IoT MQTT)
🔸️ implementing (Work Managers, Background Services, Alarm Managers)
🔸️ Firebase Integration
🔸️ Maps (Google, MapBox, Openstreetmap)
🔸️ social media integration with Facebook, Twitter, and Instagram
🔸️ PDF Rendering
🔸️ 3D Model Rendering
🔸️ device hardware such as Bluetooth, GPS, Accelerometer, Camera, etc.
🔸️testing (Unit testing, Espresso testing)
In addition to my Mobile Development skills, I also have expertise in:
🔸️ Data Structures and Algorithms
🔸️ OOP patterns
🔸️ Spring framework
🔸️ JavaFx
🔸️ Angular
🔸️HTML
🔸️CSS
🔸️typescript
🔸️Git (Bitbucket, GitHub, Gitlab)
🔸️Agile methodology
Please do not hesitate to reach out if you have any questions or if you are interested in working with me. I look forward to the opportunity to work with you ^_^.
Kotlin
Java
Android
Android SDK
Android Studio
Git
CI/CD
TensorFlow
Google Maps API
Native App Development
Mobile App Development
Widget
Android App Development
Wear OS
WebRTC
Druta A.
Chisinau, Moldova
$20/hr
5.0
3 jobs
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.
iOS Development
Apple Xcode
iPad App Development
Swift
iOS SDK
iPhone UI Design
Mobile UI Design
iPad UI Design
GUI Design
Ilia G.
Chisinau, Moldova
$40/hr
5.0
11 jobs
- 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
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