Upwork home
Sign up
Project Catalog
DesignDesign
Video & AudioVideo & Audio
Development & ITDevelopment & IT
MarketingMarketing
Writing & TranslationWriting & Translation
MoreMore

You will get React Native Expert | Hybrid Android & IOS App Development

Mohsin S.Status: Offline
Mohsin S. Mohsin S.
5.0
Top Rated
Preview imagePreview imagePreview image

Let a pro handle the details

Buy Custom Mobile Apps services from Mohsin, priced and ready to go.
Mohsin S.Status: Offline
Mohsin S. Mohsin S.
5.0
Top Rated
Preview imagePreview imagePreview image

Let a pro handle the details

Buy Custom Mobile Apps services from Mohsin, priced and ready to go.

Project details

React Native Expert | Android App Development | IOS App Development | Third-Party API Integration | App Performance Optimization

As an expert mobile app developer with a proven track record in React Native, I am dedicated to delivering innovative and high-quality solutions that exceed client expectations. My expertise lies in crafting intuitive user interfaces, building robust backend logic and ensuring seamless integration with third-party APIs and services.

Throughout my career, I have successfully delivered a diverse range of mobile app projects, from e-commerce platforms to social media applications. My ability to understand complex business needs and translate them into effective technical solutions sets me apart.

I am adept at implementing best practices for state management (e.g., Redux, Context API), navigation (e.g., React Navigation) and testing (Jest). I am proficient in utilizing the full potential of React Native to create engaging and user-friendly mobile experiences.

Let's discuss in detail and bring your idea to life!
Platform
Mobile Web
App Type
Hybrid App
Development Technology
Flutter, React Native
App Purpose
Cryptocurrency, Delivery, Finance, Education, Health & Fitness, Kids, Medical, Restaurant, Shopping, Travel
Expertise
Cross Browser & Device Compatibility, Design, Performance Optimization
What's included
Service Tiers Starter
$500
Standard
$1,400
Advanced
$2,500
Delivery Time 4 days 10 days 20 days
Number of Revisions
233
Number of Mobile Operating Systems
222
App Store Upload
App Icon Design
-
Splash Screen
-
Ad Network Integration
-
-
-
Source Code
Optional add-ons You can add these on the next page.
Fast Delivery
+$150 - $500
5.0
62 reviews
98% Complete
(61)
2% Complete
(1)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)

AM

Antony M.
5.00
Jul 3, 2026
Senior Full Stack Developer: port pqc.rusytkey.me verifiable credentials to REST endpoint Mohsin delivered working code for our PQC end-point project ahead of schedule, no doubt in part due to Mohsin's deep domain expertise. Highly recommend.

AM

Antony M.
5.00
Jun 30, 2026
threeJs/webauthn game for pqc.rustykey.me Mohsin did a great job, completing a testbed for pqc algorithms and an immersive three.js game. Thorough, professional and clear communicator. Highly recommend!

AM

Antony M.
5.00
Jun 2, 2026
pqc.rustykey.me improvements and quantum-resistant-rustykey updates Mohsin did a great job updating the cryptography model and other necessary maintenance, efficiently and quickly. Thanks so much!

YL

Yazuke L.
5.00
May 30, 2026
30 minute consultation Mohsin is the best developer money can buy. He understands everything you throw at him and communicates clearly. He went above and beyond and genuinely cares about helping you succeed. I highly recommend him and will definitely be working with him again.

AM

Antony M.
5.00
May 26, 2026
3 interactive Three.js TSL (webGpu) visualizations Mohsin did an outstanding job creating a cryptography visualization using Three.js. He took complex concepts and translated them into an interactive, performant, and visually informative 3D experience. Communication was excellent throughout the project, and Mohsin delivered exactly what was needed on time. Highly recommended for any complex frontend or WebGL/Three.js work!
Mohsin S.Status: Offline

About Mohsin

Mohsin S.Status: Offline
Full-Stack AI Engineer | RAG, Python, AI Automation, WebRTC & FFmpeg
100% Job Success
5.0  (62 reviews)
Lahore, Pakistan - 3:50 am local time
I build AI-powered automation systems, RAG applications, full-stack AI SaaS products, and real-time WebRTC & FFmpeg media platforms using JavaScript, Python, Node.js, Next.js, React, Electron, OpenAI, Claude, and modern AI development tools.

If you need an AI app that connects to your data, automates workflows, processes video, audio, integrates with your existing SaaS tools, or turns manual operations into reliable software, I can help you design, build, and ship it.

𝐌𝐲 𝐬𝐭𝐫𝐨𝐧𝐠𝐞𝐬𝐭 𝐚𝐫𝐞𝐚𝐬 𝐚𝐫𝐞:

• AI automation systems for business workflows, internal tools, CRMs, documents, reports, and data operations
• RAG applications using private documents, databases, PDFs, APIs, vector search, and LLMs
• Full-stack AI SaaS platforms using Next.js, React, Node.js, Python, FastAPI, PostgreSQL, Supabase, MongoDB, Redis, and APIs
• Claude, OpenAI, Gemini, Whisper, ElevenLabs, LangChain-style workflows, prompt pipelines, and AI-assisted product features
• WebRTC and LiveKit applications for video calling, voice chat, real-time communication, screen sharing, and recording
• FFmpeg pipelines for video processing, clipping, transcoding, streaming, audio extraction, thumbnails, and AI-powered media workflows
• Electron desktop applications for AI document automation, email automation, local file workflows, and cross-platform business tools
• Browser automation and workflow automation using Puppeteer, Playwright, Apify, n8n, APIs, Airtable, Google Sheets, and CRMs
• Cursor-assisted development for faster implementation while maintaining clean architecture, secure code, and production quality

I am not a generic AI prompt engineer. I am a senior full-stack engineer who builds real AI-powered software: backend systems, APIs, automations, RAG pipelines, dashboards, desktop apps, media pipelines, and production-ready SaaS platforms.

𝗢𝗻 𝗨𝗽𝘄𝗼𝗿𝗸, 𝗜 𝗵𝗮𝘃𝗲 𝗰𝗼𝗺𝗽𝗹𝗲𝘁𝗲𝗱 𝟴𝟬+ 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝘄𝗶𝘁𝗵 $𝟮𝟬𝟬𝗞+ 𝗲𝗮𝗿𝗻𝗲𝗱, 𝟲,𝟬𝟬𝟬+ 𝗵𝗼𝘂𝗿𝘀, 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀, 𝗮𝗻𝗱 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 𝘀𝘁𝗮𝘁𝘂𝘀. Clients usually hire me when the project needs someone who can understand the product, design the architecture, write clean code, integrate complex APIs, and solve difficult technical problems without needing constant supervision.

𝗘𝘅𝗮𝗺𝗽𝗹𝗲𝘀 𝗼𝗳 𝘄𝗼𝗿𝗸 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘄𝗶𝘁𝗵:

𝟭. 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗜𝗻𝘁𝗲𝗿𝗻𝗮𝗹 𝗧𝗼𝗼𝗹𝘀
Automated reporting systems, AI-powered document workflows, CRM automation, email/document processing, data enrichment, scraping workflows, API integrations, and business process automation.

𝟮. 𝗥𝗔𝗚 & 𝗣𝗿𝗶𝘃𝗮𝘁𝗲 𝗞𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲 𝗔𝗽𝗽𝘀
AI chatbots over company documents, PDF search, database-connected assistants, knowledge-base automation, semantic search, vector database workflows, and role-based AI tools for teams.

𝟯. 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗔𝗜 𝗦𝗮𝗮𝗦 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁
AI-powered SaaS MVPs, dashboards, admin panels, subscription systems, multi-tenant architecture, user management, API backends, and production deployments.

𝟰. 𝗔𝗜 𝗩𝗶𝗱𝗲𝗼, 𝗔𝘂𝗱𝗶𝗼 & 𝗠𝗲𝗱𝗶𝗮 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻
AI clip generation, video/audio transcription, FFmpeg-based processing, livestream recording, content repurposing, podcast workflows, AI media tools, and automated publishing pipelines.

𝟱. 𝗪𝗲𝗯𝗥𝗧𝗖, 𝗟𝗶𝘃𝗲𝗞𝗶𝘁 & 𝗥𝗲𝗮𝗹-𝗧𝗶𝗺𝗲 𝗔𝗽𝗽𝘀
Video calling apps, voice chat platforms, telehealth communication, screen recording, multi-camera recording, real-time collaboration, WebSockets, and low-latency media systems.

𝟲. 𝗘𝗹𝗲𝗰𝘁𝗿𝗼𝗻 𝗗𝗲𝘀𝗸𝘁𝗼𝗽 𝗔𝗜 𝗔𝗽𝗽𝘀
Cross-platform desktop applications for AI email automation, document automation, file organization, local processing, API-connected workflows, and secure internal tools.

𝗧𝗲𝗰𝗵 𝗜 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵:

OpenAI, Claude, Gemini, Whisper, ElevenLabs, RAG, vector search, LangChain-style workflows, Cursor, Node.js, Next.js, React, JavaScript, TypeScript, Python, FastAPI, NestJS, PostgreSQL, Supabase, MongoDB, Redis, Electron, WebRTC, LiveKit, FFmpeg, HLS, RTMP, WebSockets, Puppeteer, Playwright, Apify, n8n, Docker, and cloud deployments.

𝗛𝗼𝘄 𝗜 𝘄𝗼𝗿𝗸:

I start with the business outcome, then design the right technical approach. You get clear communication, clean architecture, documented code, realistic timelines, and early warnings if I see a better path or a technical risk. I can own a project end to end or join your existing team and move fast inside an active codebase.

If your project involves AI automation, RAG, full-stack AI development, WebRTC, FFmpeg, Electron, Python, JavaScript, or a production SaaS build, send me the project details and I will explain the best technical approach.

Steps for completing your project

After purchasing the project, send requirements so Mohsin can start the project.

Delivery time starts when Mohsin receives requirements from you.

Mohsin works on your project following the steps below.

Revisions may occur after the delivery date.

Requirements Analysis

Development

Review the work, release payment, and leave feedback to Mohsin.