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$38/hr
100%
Job Success
$100K+ earned
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15+ years in .NET and C# area successfully covering Web | Mobile | Backend
# From modern .NET / ASP.NET Core MVC and Blazor apps development to legacy WebForms support.
# Data Storage in clouds or SQL/NoSQL databases accessed with Entity Framework.
# From front-end side based on Angular / Vue / React to low-level support with pure JavaScript/jQuery/Ajax.
# From MAUI and Flutter iOS/Android/Windows MvvM modern apps to old-fashioned WinForms.
- Computer Science University Degree.
- Analytics, legacy code migration, testing, support, documentation.
- Long- and mid-term collaboration preferred.
- Flexible working hours; ET/EDT time zone communication-friendly.
- Ukrainian Development Culture (located in safe place now).
$25/hr
100%
Job Success
$70K+ earned
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15+ years of software development experience including more than 9 years in Mobile application development. Worked in Android (Java / Kotlin), iOS (Swift), Xamarin / .Net Maui, J2ME, Java C#, PHP, and .Net. Developed some of the top downloaded apps available at Google Play Store and Apple Store.
Founder and CEO of an IT company Quarter Pi offering mobile and web application development to start ups and medium scaled businesses. Leading our in-house development teams in developing new exciting apps.
Umar R.
has worked
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$20/hr
100%
Job Success
$50K+ earned
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With over a decade of hands-on experience and a Top Rated Plus track record of delivering large-scale enterprise ecosystems, I provide the technical leadership necessary to turn complex business logic into high-performance digital products. My approach combines veteran architectural knowledge with AI-driven development to maximize delivery speed without compromising security or code quality.
📱 Dual-Specialist Mobile Architecture
I bridge the gap between native performance and cross-platform efficiency, specializing in the two most powerful frameworks for enterprise apps:
.NET MAUI & Xamarin Expert: Industry leader in migrating legacy Xamarin suites to .NET 8/9 MAUI, ensuring native rendering and optimized performance.
React Native Specialist: Building highly responsive, scalable mobile interfaces with seamless JavaScript/TypeScript integration and native module hooks.
Native Foundations: Deep proficiency in Swift, Objective-C, and Kotlin for specialized low-level hardware integrations.
Advanced Features: Complex UI/UX animations, MagStripe/NFC, biometric security, and real-time communication (SignalR/Firebase).
🌐 Web & Cloud Solutions
I build robust, high-traffic backends and modern web frontends:
Frameworks: ASP.NET Core MVC, Web API, and Blazor Hybrid for sharing code between Web and Mobile.
Frontend: Responsive, enterprise-grade architectures using Angular, Bootstrap, and HTML5.
E-commerce & CMS: Specialized in custom-built retail platforms and scalable inventory management systems.
🗄️ Database & DevOps
Databases: Advanced optimization and performance tuning for MS-SQL, SQLite, Oracle, DB2, and MongoDB.
AI-Enhanced Workflow: I leverage GitHub Copilot and Cursor for rapid prototyping and automated refactoring, delivering production-ready code in record time.
Professional Versioning: Expert management of Git (GitHub/Azure DevOps/Bitbucket) and TFS workflows.
🏆 Why My Partnership Drives Results:
1. Enterprise-Level Project Recovery
I specialize in taking over complex, stalled, or legacy codebases and transforming them into stable, live products. My goal is to reduce your technical debt while accelerating your roadmap.
2. Strategic Solution Consulting
I don’t just execute tasks; I act as a technical partner. I provide frequent, transparent communication and proactive architectural advice to ensure your product scales with your business.
3. Quality-First Architecture
By strictly following MVVM, SOLID, and Clean Architecture principles, I ensure your application is maintainable, testable, and ready for future upgrades.
4. Global Team Momentum
I lead a specialized team of UI/UX and Backend experts, allowing us to handle the full project lifecycle while maintaining 24/7 momentum across international time zones.
Javed K.
has worked
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$35/hr
100%
Job Success
Available now
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I'm a Data Scientist and Software Engineer based in Rome, Italy, with 10+ years of experience shipping cross-platform apps and integrating real machine learning into them. I hold an MSc in Data Science from Sapienza University of Rome, with published research on arXiv:2208.10993.
What makes me useful to founders and product teams: I cover the full stack with AI layer (LLM integration, RAG pipelines, on-device ML, computer vision) through to the mobile or web product it lives inside. That means I can meet you wherever you are, whether you need help thinking through the AI architecture, building the app around it, or both. Fewer handoffs, faster iteration, and someone who stays accountable for the whole thing working in production.
🔹 Selected Projects
✔ Fitabase — Garmin Health SDK integration in .NET MAUI
Built the first .NET MAUI binding for the Garmin Health SDK from scratch. No prior bindings existed — I wrote the native iOS and Android bridges, exposed them through a clean MAUI API, and shipped it into Fitabase Engage, a platform used by health researchers to collect data from thousands of wearable devices. This is visible on my Upwork review history.
✔ PoolExpert (Zepto Internet Solutions, Canada) — Xamarin.Forms → .NET MAUI migration
Migrated a production mobile app with 100,000+ users from Xamarin.Forms to .NET MAUI without service interruption. Audited every page, identified the right MAUI controls based on performance profiling, and rebuilt the architecture for faster load times and smoother UI. Ongoing engagement — the client kept me on after migration for active feature development.
✔ Xplor Platform (UK heritage organization, via DataDuopoly)
Senior Engineer and Technical Lead on a commissioned platform for a major UK heritage organization. Owned the migration of a legacy system and led the design of a footfall prediction algorithm to help operations plan visitor capacity across sites. Delivered and deployed to production.
✔ Pryzebox (Vivomi Inc.) — 2-year multi-platform engagement
Built and maintained an entire e-commerce stack: a Shopify-embedded app, mobile apps (Xamarin iOS/Android), a .NET Core + Entity Framework web admin panel, and the supporting REST APIs. One engineer, four surfaces, shipped and maintained over two years.
✔AILEVEN — Italian fantasy football platform
Full stack build: mobile app, backend, and admin panel — all in C# and .NET. Currently planning the .NET MAUI migration with the founder.
✔ 12-Lead ECG Arrhythmia Detection (MSc research, Sapienza)
Built a Flutter app running custom-trained deep learning models (TensorFlow Lite) for on-device ECG arrhythmia classification. Trained and compared multiple model architectures for my thesis. Published research on arXiv. Demonstrates genuine applied ML depth, not just API integration.
✔ RAG-Powered Book Summary Platform (Claude API + Google Workspace)
Designed and built a Retrieval-Augmented Generation pipeline that produces long-form book summaries users can publish and share. Built for a fraction of the cost of off-the-shelf alternatives by architecting smart chunking, caching, and context management. Launching to production soon.
🔹 How I can help you
If you're an AI-first founder building an MVP — I'll architect and ship it end-to-end: the AI layer (RAG, agents, LLM features), the product it lives in (mobile or web), and the infrastructure under it. You get one senior owner, not a team of handoffs.
If you're an enterprise mobile team — I lead complex .NET MAUI and Flutter builds, with specific depth in migrations from Xamarin, integrating SDKs that don't have bindings yet, and layering AI features into existing apps.
If you're an agency — I take on senior technical engagements as a subcontractor where AI and mobile skills both need to be real. References available.
🔹 Tech Stack
AI & ML: Python, TensorFlow, PyTorch, scikit-learn, LangChain, Claude API, OpenAI API, Gemini, RAG architectures, vector databases, TensorFlow Lite, NCNN, on-device inference
Mobile: .NET MAUI, Flutter, Xamarin.Forms, Xamarin Native (iOS/Android)
Backend: .NET Core, C#, Entity Framework, Python/FastAPI, Node.js, REST APIs, microservices
Cloud & DevOps: AWS, Azure, GCP, Docker, Kubernetes, GitHub Actions, Azure DevOps, CI/CD
🔹 How I work
Clear weekly updates. Honest estimates, including when things will take longer than I hoped. Code that another engineer can take over without a month of onboarding. I'm in CET and overlap comfortably with US East Coast and UK hours.
I don't take $500 projects, "build me ChatGPT in a week" briefs, or work I can't do well. If your project isn't a fit, I'll tell you and point you to someone better.
Send me a message with a few lines about what you're building and the problem you're trying to solve. I reply within 24 hours with an honest read on whether I'm the right person — and if I'm not, I'll say so.
Hafiz Muhammad H.
has worked
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$22.5/hr
100%
Job Success
$90K+ earned
Offers consultations
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🏗️ Most developers build mobile apps. I build mobile products that survive version 2.
Top Rated · $90K+ Earned · 100% Job Success · 7+ Years Experience
There's a difference between an app that launches and an app that lasts. After 7+ years and 50+ production apps — built for startups shipping their first product and enterprises modernizing legacy Xamarin codebases — I know exactly what separates the two: architecture decisions made on day one. I specialize in .NET MAUI for cross-platform iOS & Android, with deep roots in Flutter, Xamarin, and ASP.NET Core backend. Whether you're starting fresh or inheriting a mess, I'll tell you the truth about what it takes — then build it.
WHY CLIENTS CHOOSE ME
✅ Cross-platform apps that feel native — without the native price tag
✅ Clean MVVM + Dependency Injection architecture you won't rewrite in 12 months
✅ CI/CD pipelines, automated testing, and App Store deployment handled end-to-end
✅ Clear communication, regular updates, zero ghosting
✅ Long-term thinking — I build for your product's future, not just the current sprint
WHAT I BUILD
📱 Mobile Apps (iOS & Android)
→ .NET MAUI with Shell navigation, MVVM, CommunityToolkit & Dependency Injection
→ Flutter with Dart, Provider / Riverpod / Bloc, and native integrations
→ Pixel-perfect responsive UI, 60fps animations, platform-specific optimizations
→ Offline-first architecture with local SQLite / Realm databases
🔄 Xamarin → .NET MAUI Migrations
→ Full codebase audit, renderer → handler migration, performance benchmarking
→ Upgraded to modern .NET 8/9 with Hot Reload and improved startup time
→ Custom controls rewritten with the new MAUI Graphics API
⚙️ Backend & Cloud
→ ASP.NET Core REST APIs with JWT auth, rate limiting & Swagger docs
→ Azure (App Service, Functions, Blob Storage, Notification Hubs, AD B2C)
→ Firebase (Auth, Firestore, Realtime DB, FCM push notifications)
→ Real-time features with SignalR — chat, live dashboards, instant notifications
→ GraphQL APIs and third-party integrations (Stripe, Twilio, Google Maps, SendGrid)
🤖 AI-Powered Features
→ On-device OCR with ML Kit & Tesseract
→ OpenAI / GPT-powered chatbots and voice-to-text (Whisper API)
→ Image recognition with Azure Vision & TensorFlow Lite
→ Smart search and recommendation engines
🛒 Complex App Features
→ Stripe & in-app purchase subscriptions (App Store / Play Store billing)
→ Real-time booking systems with calendar sync and push reminders
→ Google Maps / Mapbox with geofencing and live location tracking
→ Multi-role user systems with granular permissions and admin panels
APPS I'VE SHIPPED
TrinDocs · Crushfit · Slice & Spin · CV Wallet · HBoxTV — and 45+ more
TECH STACK AT A GLANCE
Mobile → .NET MAUI · Flutter · Xamarin
Backend → ASP.NET Core · Node.js · GraphQL · SignalR
Cloud → Azure · Firebase · AWS
Database → SQL Server · PostgreSQL · SQLite · Firestore
DevOps → GitHub Actions · Azure DevOps · App Center · Fastlane
HOW WE'LL WORK TOGETHER
You send a message describing your project
We jump on a free 15-minute discovery call
I send a clear proposal with architecture plan, timeline & milestones
We build — with weekly demos, clean git history, and zero surprises
Ready to build something great?
Send me a message — I typically respond within a few minutes.
Aiyaar O.
has worked
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$39/hr
100%
Job Success
$900K+ earned
Available now
Offers consultations
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🌟8+ Years Experience | 50+ Projects | 20,000+ Hours | $900K+ Earned | Upwork Top Performer | Flutter Developer | Mobile App Developer
I’m a Flutter developer, mobile app developer, full stack developer, and web developer with 8+ years of experience building, fixing, and scaling mobile products for startups and growing companies. My work spans mobile app development, web development, and backend-connected product work, with a strong focus on clean architecture, smooth user experience, reliable delivery, and scalable app development.
I’ve worked across Flutter, Flutter Dart, Flutter Firebase, React, React Native, Xamarin developer projects, Xamarin Forms, Xamarin.Forms, .NET MAUI developer builds, Swift developer work, SwiftUI, iOS, Android, iOS developer tasks, iOS Swift, Android developer tasks, Android Kotlin, Kotlin, native app developer projects, AI app development, MVP development, API integration, and cross platform mobile app architecture. I also support teams that need a practical full stack developer who can connect mobile apps with APIs, dashboards, cloud services, and web systems without slowing the project down. That mix of mobile app development and web development lets me work across the full product, not just one part of it.
On Upwork, I’ve delivered 50+ projects, earned $800K+, and worked 20,000+ hours helping clients launch MVPs, modernize old apps, fix unstable codebases, and move products into production. That experience taught me how to balance speed with quality, especially when a project needs to ship quickly but still be stable enough for real users. It also taught me how to work with different teams, different product stages, and different technical constraints without losing momentum.
For new products, I help with MVP development from concept to launch. For existing products, I step in to improve architecture, refactor weak areas, and make the app easier to maintain and scale. If you’re building a cross platform mobile app, I can help choose the right direction between Flutter, React Native, .NET MAUI, Xamarin migration, or native app development depending on the product goals, timeline, and long-term plan. I focus on making those choices practical, not trendy, so the app can grow without becoming harder to manage.
I’m also a strong fit for AI app development projects where the product needs more than a basic interface. That might mean smart workflows, automated actions, backend logic, or API integration that connects the app to real business systems. In those projects, I pay close attention to stability, data flow, security, and the user experience, because a useful feature only matters if it works reliably in production.
💡 Areas I specialize in
- SaaS and startup MVP development - from idea to production-ready MVP.
- Cross platform mobile app architecture - Flutter, React Native, and .NET MAUI.
- App modernization and legacy migration - Xamarin to .NET MAUI, Flutter, or React Native.
- API integration and backend connectivity - for apps that need stable data flow and real-time features.
- AI app development and product automation - for teams that want smarter app experiences.
- Continuous delivery, refactoring, and codebase optimization - to keep existing products moving forward.
- Mobile app development for iOS and Android - with a focus on stability, performance, and usability.
- Full stack developer support - when mobile work needs web, API, or backend coordination.
- Native app developer support - when the project needs platform-specific quality and performance.
- React Native developer support - for teams already working in JavaScript-based mobile stacks.
- Swift developer and iOS developer support - for polished Apple ecosystem apps.
- Android developer support with Kotlin - for strong native Android performance.
- Flutter developer support - for fast cross platform mobile app delivery.
- Xamarin developer support - for legacy apps that need modernization or migration.
- .NET MAUI developer support - for teams moving toward a modern Microsoft stack.
- Cross platform mobile app delivery - when one codebase needs to support iOS and Android efficiently.
I’m a good fit when you need a mobile developer who can think beyond screens and help shape the full product. Whether the goal is a fresh MVP, a native app for iOS or native Android or a cross platform mobile app that can grow over time, I focus on code quality, maintainability, and practical results. I also make sure the work stays aligned with product goals, so the app is not just built well, but built in a way that supports growth and future updates.
🚀 If you need a Flutter developer, React Native developer, Xamarin developer, .NET MAUI developer, Swift developer, iOS developer, Android developer, Kotlin developer, mobile app developer, web developer, MVP developer, API integration expert or full stack developer who can bring structure to a complex build and get it shipped - message or invite me - I’m ready to help!
Vitalii A.
has worked
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Associated with
DevsX
$1M+
earned
$20/hr
100%
Job Success
$90K+ earned
Offers consultations
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🌟 Top Rated Plus Freelancer | Full-Stack Developer | Web & Mobile App Expert 🌟
Greetings!
I'm Usama, a seasoned programmer specializing in web and mobile app development for Android and iOS platforms, along with expertise in Windows services and desktop utilities. With a strong background in C#.NET, ASP.NET MVC,.NET Core, Xamarin, Blazor, and.NET MAUI, I bring over 6 years of hands-on experience to the table.
My expertise includes:
Developing responsive web applications with Blazor and ASP.NET for a modern user experience.
Creating cross-platform mobile applications using Xamarin,.NET MAUI for Android and iOS, and ASP.NET Core Web API.
Designing and implementing Windows services for background tasks and automation.
Developing desktop utilities using WinForm C# for various purposes such as data management, reporting, and more.
Efficiently managing databases with Microsoft SQL Server and MySQL for seamless data handling.
Here's why clients love working with me:
a proven track record of delivering high-quality solutions on time.
Expertise in OOP, MVC, API integration, and responsive design for web and mobile applications.
Fluent in English, Urdu, and Hindi for seamless communication.
Let's collaborate to bring your ideas to life and achieve success together. Feel free to explore my profile and check out feedback from satisfied clients.
I look forward to the opportunity to work with you!
Warm regards,
Usama
$25/hr
100%
Job Success
$20K+ earned
Available now
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Hi, I’m Meet Thakor, a Senior .NET MAUI & .NET Developer with 4.5+ years of hands-on experience building cross-platform mobile apps, modernizing Xamarin.Forms apps, and developing scalable .NET Core APIs.
I help startups, agencies, and enterprises build fast, stable, and user-friendly mobile applications using .NET MAUI - with clean architecture, offline support, and seamless API integration.
Backed by Estatic Infotech, I’ve contributed to 50+ successful .NET, mobile, and cloud projects globally.
🚀 What I Specialize In
✔ .NET MAUI App Development (Android & iOS)
✔ Xamarin.Forms to .NET MAUI Migration
✔ API Development using .NET Core & Entity Framework
✔ Offline-first architecture with SQLite
✔ Cross-platform UI/UX using MVVM & Clean Code
✔ Publishing to Play Store & App Store
✔ Frontend + Backend Integration
✔ End-to-end delivery with clear communication & fast turnaround
Highlights from My Work
🔹 Nimble Stock(Xamarin → MAUI Migration) - Migrated the entire tool-management system from Xamarin.Forms to MAUI. Improved build performance, delivered a modern UI, and enhanced app stability across devices.
🔹 Quatrix – Real-Time Delivery Management - Built a full MAUI app from Figma designs. Implemented GPS tracking, delivery dashboards, and live dash-camera streaming.
🔹 Nexlink – E-commerce MAUI App (Offline-first) - Developed an eCommerce mobile app with full offline sync, SQLite storage, product catalog, cart, and order modules.
🔹 Monkevo – Backend API Development - Designed modular APIs for booking, slot scheduling, partner collaboration, and maintenance management.
🔹 TimeNest TimeSheet – Cross-Platform Timesheet App - Built role-based authentication, timesheet logging, approval workflows, and reporting.
Why Clients Love Working With Me
- Clean, maintainable code (SOLID + MVVM + proper architecture)
- Very strong in debugging, optimization, and problem-solving
- Smooth communication & proactive updates
- Ability to work independently or as part of distributed teams
- Always deliver on time and maintain long-term project quality
Tech Stack
- Mobile: .NET MAUI, Xamarin.Forms
- Backend: .NET Core, Web API, Entity Framework, LINQ
- Database: SQL Server, SQLite, MySQL
- Architecture: MVVM, Clean Code, Offline-first, API-first
Tools: Visual Studio, GitHub, GitLab, Azure Repos
Other: Publishing to App Store & Play Store, API integration, REST, Figma-to-MAUI UI implementation
If you’re looking for a dependable MAUI/.NET engineer who can take ownership, communicate clearly, and ship high-quality work - I’m available to start right away and happy to discuss your project.
⭐ Clients Search For (And I Deliver) :
.NET MAUI developer
Xamarin to MAUI migration
Cross-platform mobile app developer
MAUI Android & iOS developer
C# developer
ASP.NET Core API developer
Offline-first mobile app
SQLite mobile synchronization
Figma to MAUI conversion
Play Store & App Store publishing
Associated with
Estatic Infotech Pvt Ltd
$1M+
earned
$15/hr
100%
Job Success
$100K+ earned
Start of list.
End of list.
Most mobile apps look good in demos and break in production. I build apps that perform under real-world conditions fast, reliable, and intelligent from day one.
I'm Ajay, a Senior React Native Developer with extensive experience shipping high-performance cross-platform mobile applications for iOS and Android that solve real business problems not just check a design brief.
YOU'RE IN THE RIGHT PLACE IF:
→ You need a cross-platform mobile app built once and deployed flawlessly on both iOS and Android
→ You want AI features smart recommendations, real-time analysis, LLM-powered functionality built directly into your mobile app
→ Your existing app is slow, unstable, or failing to scale under real user load
→ You need a React Native specialist, not a generalist who dabbles in mobile
→ You want clean architecture and pixel-perfect UI not just a working prototype
→ You need backend connectivity APIs, Firebase, Azure, AWS handled by the same person building the app
RECENT REAL APPS I HAVE BUILT:
AI-Powered Pallet Inspection App — React Native
Inspectors open the app on site, scan or capture the pallet, and AI trained on compliance standards instantly analyses it, flags issues in real time, and generates weighted inspection scores and audit reports automatically. What used to be a manual, hours-long process now happens in seconds — from a mobile device.
Multi-Category Real-Time Auction Platform — React Native
Buyers and sellers connect across item categories, place live bids, track auction status in real time, and complete end-to-end transactions entirely within the app. Built to handle the pressure of simultaneous live bidding without performance loss.
Teacher-Student Connection and Booking Platform - MAUI
Teachers create profiles, list subjects and availability, and students discover, connect, and book sessions directly through the app. Real-time messaging, session scheduling, and a clean experience on both sides — making quality education more accessible.
WHAT I BUILD:
✔ Cross-platform mobile apps — iOS and Android from a single React Native codebase
✔ AI-powered mobile applications — smart recommendations, automated workflows, real-time data analysis, LLM integrations
✔ Microsoft ecosystem mobile apps — .NET MAUI and Xamarin for enterprise-aligned projects
✔ Flutter apps when the project requires it
✔ Mobile apps backed by solid, scalable infrastructure — RESTful APIs, Firebase, Entity Framework, Azure, AWS
✔ App modernization — improving existing apps that are slow, unstable, or hard to maintain
AI IN MOBILE APP:
✔ LLM-powered features integrated directly into mobile apps — OpenAI, GPT-4o, Claude
✔ Real-time AI analysis — on-device and cloud-based intelligent processing
✔ Smart recommendation engines and personalization systems
✔ Automated workflow systems triggered from mobile interactions
✔ AI chatbots and conversational interfaces inside mobile apps
✔ Computer vision and image-based AI features — inspection, scanning, recognition
TECH STACK:
Mobile: React Native, .NET MAUI, Xamarin, Flutter
AI and Integrations: OpenAI API, GPT-4o, LLM Integrations, Firebase, REST APIs, GraphQL
Backend and Cloud: Azure, AWS, Entity Framework, Node.js, .NET Core
Architecture: Clean Architecture, MVVM, Component-Based Design
UI: Pixel-perfect cross-platform UI, React Native UI libraries, Tailwind, Material Design
Every app I ship follows clean architecture and MVVM patterns because a great mobile app has to feel as good as it functions. Performance, reliability, and user experience are not afterthoughts. They are built in from the first line of code.
Available full time — 40 to 45 hours per week.
Active overlap with US, UK, EU, and AU time zones.
I typically respond within 1 to 3 hours.
𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬:
[ React Native Developer, Senior React Native Engineer, Mobile App Developer, Cross-Platform App Development, iOS App Development, Android App Development, React Native Mobile Apps, AI Mobile Apps, AI-Powered Applications, GPT-4o Integration, OpenAI API Integration, LLM Integration, AI Chatbot Development, Firebase, REST API Integration, GraphQL APIs, Clean Architecture, MVVM Architecture, .NET MAUI Developer, Xamarin Developer, Azure Cloud, AWS Cloud, Node.js Backend, .NET Core Developer, Enterprise Mobile Applications, Pixel-Perfect UI, Tailwind CSS, Mobile Performance Optimization, App Modernization, AI Image Recognition, Computer Vision Apps, Mobile Automation, Offline-First Apps, App Store Deployment, Cross-Platform Solutions ]
Whether you are building from scratch, improving a live app, or bringing AI into your existing mobile product — send me a message with a quick summary of what you need. I will give you honest feedback on how I would approach it, no commitment required.
Associated with
Step2gen Technologies Private Limited
$3M+
earned
$34/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
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Hi everyone, I offer: 🔥𝐅𝐫𝐞𝐞 𝐭𝐞𝐜𝐡 𝐜𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐭𝐢𝐨𝐧, 𝐟𝐫𝐞𝐞 𝐞𝐬𝐭𝐢𝐦𝐚𝐭𝐢𝐨𝐧, 𝐜𝐨𝐝𝐞 𝐚𝐮𝐝𝐢𝐭, 𝐝𝐚𝐭𝐚 𝐫𝐞𝐯𝐢𝐞𝐰, 𝟑𝟎-𝐦𝐢𝐧 𝐬𝐭𝐫𝐚𝐭𝐞𝐠𝐲 𝐜𝐚𝐥𝐥, 𝐚𝐧𝐝 𝐠𝐮𝐚𝐫𝐚𝐧𝐭𝐞𝐞𝐝 𝐩𝐨𝐬𝐭-𝐥𝐚𝐮𝐧𝐜𝐡 𝐬𝐮𝐩𝐩𝐨𝐫𝐭🔥
Send me the word “ARCHITECTURE”, and 𝐈’𝐥𝐥 𝐫𝐮𝐧 𝐚 𝟑𝟎-𝐦𝐢𝐧𝐮𝐭𝐞 𝐬𝐭𝐫𝐚𝐭𝐞𝐠𝐲 𝐬𝐞𝐬𝐬𝐢𝐨𝐧 𝐭𝐨 𝐦𝐚𝐩 𝐲𝐨𝐮𝐫 𝐌𝐕𝐏 𝐨𝐫 𝐞𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐢𝐧𝐭𝐨 𝐚 𝐛𝐮𝐥𝐥𝐞𝐭𝐩𝐫𝐨𝐨𝐟 .𝐍𝐄𝐓 𝐞𝐜𝐨𝐬𝐲𝐬𝐭𝐞𝐦, 𝐬𝐚𝐯𝐢𝐧𝐠 𝐲𝐨𝐮 𝐦𝐨𝐧𝐭𝐡𝐬 𝐨𝐟 𝐭𝐫𝐢𝐚𝐥 𝐚𝐧𝐝 𝐞𝐫𝐫𝐨𝐫.
With 8+ years in Flutter, Dart, .NET MAUI, Xamarin, C#, Clean Architecture, MVVM, I build scalable, cross-platform apps for MVPs to enterprise SaaS.
Portfolio & Key Projects:
📌 Clarity Locums – Healthcare Staffing App
Multi-role scheduling, offline-first (Hive/LiteDB), push notifications, interactive maps, calendars & filters
📌 TaskMaverick – Enterprise Workflow Platform
Flutter & cross-platform mobile, modular admin dashboards, offline support, CI/CD pipelines (Codemagic, AppCenter)
📌 FOREX dot com – FinTech Trading Platform
Flutter Web & mobile dashboards, real-time data (REST API, WebSocket), optimized for 1M+ users
𝐒𝐤𝐢𝐥𝐥𝐬 & 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞:
✔️Flutter/Dart: Mobile, Flutter Web, iOS/Android, responsive UI, adaptive layouts
✔️State Management: BLoC, Riverpod, Provider, Streams (RxDart)
✔️Architecture: Clean Architecture, MVVM, dependency injection (GetIt, Injectable)
✔️API & Data: REST API (http, Dio, Retrofit), Firebase (Auth, Firestore, Cloud Messaging), SQLite, Hive, Drift, Freezed/json_serializable, WebSockets
✔️Navigation: auto_route, deep linking, Flutter Navigator 1.0/2.0
✔️Offline & Push: Offline-first, caching, push notifications, background sync
✔️Advanced Features: Platform channels, AI/TFLite integration, Flutter Localizations, Google Maps API, in_app_purchase, Flame engine, Remote Config, Crashlytics
✔️Dev Tools & CI/CD: Android Studio, Xcode, VS Code, Postman, Swagger, Git, Codemagic, AppCenter, Azure, Jira, Trello
✔️Industries: Healthcare, FinTech, Enterprise SaaS, Retail, Logistics, E-commerce
Upwork Tags for Ranking:
Flutter, Dart, Cross-Platform, Mobile App, BLoC, Riverpod, Provider, Clean Architecture, MVVM, Firebase, Hive, SQLite, REST API, Flutter Web, CI/CD, Offline-First, Push Notifications, Flutter Localizations, Google Maps API, Dio, Retrofit, AutoRoute, WebSockets, In-App Purchases, Flame, Remote Config, Crashlytics, iOS, Android, Cross-Platform Mobile, State Management, Dependency Injection, Freezed, JSON Serialization, Platform Channels
Pavel C.
has worked
.
Associated with
Sharptech Sp.z.o.o.
$30K+
earned