I will be your full stack web developer, saas app developer, mern stack developer


About this gig
About this Gig
Looking for a reliable Full Stack Developer to build a modern, fast, and scalable web application?
You're in the right place.
With 7+ years of professional experience, I develop high-quality web applications using React, Next.js, Node.js, NestJS, TypeScript, PostgreSQL, MongoDB, Prisma, and AWS. Whether you're a startup building an MVP or an established business expanding your platform, I deliver clean, maintainable, and production-ready solutions.
Services I Offer
React & Next.js Development
Full-Stack Web Applications
Landing Pages & Business Websites
Admin Dashboards & CRM Systems
REST API & Third-Party API Integration
Authentication & Role-Based Access Control
Database Design (PostgreSQL & MongoDB)
Payment Gateway Integration
Bug Fixes & Performance Optimization
Responsive Design for Desktop & Mobile
Deployment on Vercel, AWS, or Other Cloud Platforms
Why Choose Me?
- 7+ years of industry experience
- Clean, scalable, and well-documented code
- SEO-friendly and performance-focused development
- Responsive communication with regular progress updates
- Reliable delivery and long-term support
Experience building SaaS products, business platforms, dashboards, and customer app
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Muhammad Umair
Senior Full stack Developer MERN NestJS NextJS React React Native PostgreSQL AWS
- FromPakistan
- Member sinceApr 2020
- Avg. response time1 hour
- Last delivery5 years
Languages
Urdu, English
My Portfolio
FAQ
What types of web applications and SaaS products do you develop?
I build custom SaaS platforms, CRM, ERP, inventory and logistics applications, admin dashboards, customer portals, marketplaces, and other business web applications. Every solution is tailored to your specific requirements and business workflow.
What technologies do you use and do you integrate third-party APIs?
I use React, Next.js, Node.js, NestJS, TypeScript, PostgreSQL, MongoDB, Prisma, Redis, Docker, and AWS. I also integrate Payment gateways, Shopify, Google Maps, Firebase, OpenAI, WhatsApp, REST APIs, GraphQL, and other third-party services.
Can you improve or add features to an existing application?
Absolutely. Whether you need bug fixes, performance optimization, new features, UI improvements, API development, database optimization, or code refactoring, I can work with your existing codebase and continue development efficiently.
What do you need before starting the project?
Please share your project requirements, feature list, wireframes, Figma designs, existing codebase (if available), and timeline. We'll discuss the scope, recommend the best technical approach, and ensure we're aligned before development begins.
What if I don’t have app designs?
No worries! I can design the UI based on your ideas, references, or help create a UI/UX layout from scratch.

