You will get Secure REST API Development & Backend Solutions
Top Rated

Project details
Build powerful, secure, and scalable backend systems for your web or mobile application. We specialize in custom backend development, REST API creation, third-party API integration, database design, authentication systems, cloud services, and server-side architecture. Whether you're launching a startup, SaaS platform, e-commerce solution, or enterprise application, we develop reliable backend infrastructures that ensure performance, security, and seamless data management.
Using modern technologies and best practices, we create fast, well-documented, and scalable APIs that connect applications, automate workflows, and enhance functionality. Our solutions are optimized for efficiency, maintainability, and future growth.
✅ What You'll Get
✔️ Custom Backend Development
✔️ RESTful API Development
✔️ Third-Party API Integration
✔️ Database Design & Management
✔️ Authentication & Authorization
✔️ Cloud & Server Configuration
✔️ Secure Data Processing
✔️ API Documentation
✔️ Performance Optimization
✔️ Scalable Architecture
✔️ Bug Fixes & Support
✔️ Web & Mobile App Integration
Using modern technologies and best practices, we create fast, well-documented, and scalable APIs that connect applications, automate workflows, and enhance functionality. Our solutions are optimized for efficiency, maintainability, and future growth.
✅ What You'll Get
✔️ Custom Backend Development
✔️ RESTful API Development
✔️ Third-Party API Integration
✔️ Database Design & Management
✔️ Authentication & Authorization
✔️ Cloud & Server Configuration
✔️ Secure Data Processing
✔️ API Documentation
✔️ Performance Optimization
✔️ Scalable Architecture
✔️ Bug Fixes & Support
✔️ Web & Mobile App Integration
Programming Languages
PHP, JavaScript, PythonCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $140
These options are included with the project scope.
$140
- Delivery Time 3 days
- Number of Revisions 3
3 reviews
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JE
Jude E.
May 14, 2026
Website, games , travel modules and then a few other pages to complete the app
MA
Matt A.
Mar 5, 2026
App go live
Salman was unreal to work with on my project. We achieved so much together and i will be reaching out to him for version upgrades for my mobile app which integrates to my web application.
10/10 would recommend him to anyone needing app development
10/10 would recommend him to anyone needing app development
FH
Faisal H.
Nov 27, 2025
Experienced React Native Developer for Mobile App
Salman was great to work with. He understood what I needed, communicated clearly, and delivered everything on time. The app came out exactly how I wanted, and he handled all the technical parts without any issues. Really professional and easy to work with. I’d definitely hire him again.
About Salman
React Native Mobile Apps Developer | AI App | iOS & Android | REST API
100%
Job Success
Islamabad, Pakistan - 7:14 am local time
I build high-performance, production-ready mobile applications for iOS and Android using React Native — with a specialty in AI-powered features, real-time systems, and scalable backend integrations.
With hands-on experience at Ejada Systems (FinTech) and Accenture, and 4+ successful Upwork projects at 100% Job Success, I deliver apps that work in the real world — not just in demos.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
▸ 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
→ React Native Mobile Apps (iOS & Android)
→ AI Chatbots & LLM-Powered App Features
→ REST API & GraphQL Integration
→ Firebase, Supabase & AWS Amplify
→ Payment Gateway & Authentication Systems
→ Real-Time Apps & Push Notifications
→ RAG, Semantic Search & Vector Databases
→ Voice AI | Speech-to-Text | Text-to-Speech
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
▸ 𝗖𝗢𝗥𝗘 𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
→ React Native | Expo | TypeScript | JavaScript
→ Node.js | Express.js | Nest.js
→ Firebase | Supabase | AWS Amplify
→ OpenAI API | LangChain | LLM Integration
→ Redux | Zustand | Context API
→ Git | GitHub | REST API | GraphQL
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
▸ 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦 𝗦𝗘𝗥𝗩𝗘𝗗
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
→ FinTech | E-Commerce | HealthTech | EdTech
→ SaaS Products | On-Demand Apps | Social Apps
→ AI-Powered Platforms | Business Automation
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
▸ 𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✔ 100% Job Success Score on Upwork
✔ Top Rated Badge — consistently 5-star reviews
✔ Senior-level experience in FinTech at Ejada Systems
✔ React Native development background at Accenture
✔ 0–4 hr avg. response time — always reachable
✔ Full delivery: architecture → development → deployment
✔ Clear communication, on-time delivery, no surprises
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
▸ 𝗥𝗘𝗖𝗘𝗡𝗧 𝗪𝗜𝗡𝗦
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
◆ UrPay FinTech App — Reduced transaction failures by 25%, improved processing speed by 35%
◆ Western Union & MoneyGram integrations — Boosted transactions by 20%+
◆ Games & Rewards module — Increased user participation by 50%
◆ Multiple 5-star React Native projects delivered on Upwork
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Whether you need a clean consumer app, an AI-integrated platform, or a complex FinTech solution — I have the skills and the track record to deliver.
𝗟𝗲𝘁'𝘀 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗴𝗿𝗲𝗮𝘁. 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 𝗺𝗲 𝗮𝗻𝗱 𝗜'𝗹𝗹 𝗿𝗲𝘀𝗽𝗼𝗻𝗱 𝘄𝗶𝘁𝗵𝗶𝗻 𝗦𝗲𝗰𝗼𝗻𝗱𝘀.
➤ 𝗞𝗘𝗬𝗪𝗢𝗥𝗗𝗦
React Native Developer, Mobile App Developer, Mobile Application Development, iOS App Development, Android App Development, Cross Platform Apps, Expo Developer, JavaScript, TypeScript, Firebase Developer, Supabase, AWS Amplify, Node.js Developer, Express.js, Nest.js, REST API, GraphQL, API Integration, AI Integration, LLM Integration, OpenAI API, AI Chatbot, AI Agent, Generative AI, RAG, Semantic Search, Voice AI, Conversational AI
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Delivery time starts when Salman receives requirements from you.
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