Senior Full-Stack Developer | Web & Mobile Apps| MERN/ React Native
I help businesses turn ideas into scalable, production-ready web and mobile applications—the kind real users rely on every day.
If you’re looking for a senior full-stack developer who understands not just how to code, but how products are actually used, scaled, and maintained, you’re in the right place.
I’m Syed Ali Haider, a Senior Full-Stack Web & Mobile Developer with 5+ years of experience, building real-world applications for startups, agencies, and growing businesses—not throwaway demos.
💼 What I Build
Web & SaaS Applications
Scalable SaaS platforms, marketplaces, booking systems, and business tools using MERN, Next.js, NestJS, and modern backend architectures.
Mobile Apps (iOS & Android)
High-performance React Native apps with clean UI, stable performance, and seamless backend integration.
Admin Dashboards & Internal Systems
Role-based admin panels for managing users, vendors, orders, payments, and operations.
Backend APIs & Databases
Secure and scalable REST / GraphQL APIs, optimized queries, and well-structured SQL & NoSQL databases.
Payments & Wallet Systems
Payment gateway integrations, wallet systems, fund loading & transfers, transaction history, and admin controls.
🧠 Why Clients Choose Me
✔ Built full web + mobile products from scratch
✔ Strong focus on scalability, security, and performance
✔ Clean, maintainable code with clear documentation
✔ Comfortable with complex workflows & business logic
✔ Clear communication, realistic timelines, and reliable delivery
I don’t just “build features”—I help you create systems that hold up as your users, traffic, and revenue grow.
🤝 Let’s Build Something Solid
Whether you’re launching an MVP or scaling an existing platform, I’ll help you build a product that’s stable, secure, and ready for real users.
👉 Send a message and let’s talk about your idea.
Work Terms
Scope & Requirements:
Project scope will be finalized before starting. Any additional features or changes outside the agreed scope will require a revised estimate.
Availability:
I am available 40 hours per week and can adjust working hours based on project needs to ensure timely delivery. (Available for Any timezone)
Communication & Updates:
You will receive regular progress updates to ensure transparency. I am responsive and maintain clear communication throughout the project.
Revisions:
Reasonable revisions are included within the agreed scope. Significant changes or new requirements may involve additional cost.
Delivery Timeline:
Deadlines will be mutually agreed upon. I prioritize on-time delivery without compromising quality.
Support & Maintenance:
I provide 2 months of free support after project completion for bug fixes and minor adjustments. Extended support can be arranged if needed.