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$
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I will be your expert flutter firebase and node js mobile app developer
Aizaz
4.8
4.8
About this gig
I am Aizaz Haider, a Senior Full-Stack Mobile Engineer with over 3.5 years of professional experience specializing in advanced Flutter app development.
Unlike generic developers who just stitch templates together, I focus on building robust architectures, seamless API integrations, and secure backends that handle high traffic effortlessly.
Why my architecture is different:
- Clean Architecture: I use Clean Architecture to ensure your code is modular, testable, and maintainable. No "spaghetti code" that breaks after a month.
- Full-Stack Depth: Unlike most Flutter devs, I build custom Node.js APIs and secure Firebase backends that handle high traffic effortlessly.
️ Technical Specializations:
- Complex App Logic: Real-time synchronization, WebSockets, background services, and deep-link integration.
- Firebase Mastery: Cloud Functions, complex Firestore indexing, and secure OAuth/Auth workflows.
- API Excellence: Deep experience with RESTful API and GraphQL integrations complete with structured error handling.
- Device Integration: Smooth deployment of local databases (Hive/Isar), push notifications, and hardware sensor integrations.
Get to know Aizaz
Aizaz
MERN Stack Developer and Full Stack Web Engineer
- FromPakistan
- Member sinceMay 2020
- Last delivery1 year
Languages
English
Hi, I’m Aizaz Haider, a passionate Software Engineer and Full-Stack MERN Stack Developer. With a strong foundation in Computer Science and 800+ LeetCode problems solved, I specialize in building scalable, high-performance web applications using React.js, Node.js, Express.js, and MongoDB.
Whether you need a custom MERN stack e-commerce platform, Next.js web app, secure RESTful APIs, or Redux state management, I deliver clean, optimized code. Let's collaborate to transform your complex ideas into powerful digital solutions. Contact me today!
My Portfolio
Other Software Development Services I Offer
FAQ
Why do you use Clean Architecture for Flutter mobile app development?
I implement Clean Architecture to separate your app's core business logic from the UI and external frameworks. This ensures your Flutter codebase remains modular, fully testable, and highly maintainable. It completely eliminates "spaghetti code," making it seamless for your team to scale or add feat
Do you handle the backend development and database integration for the apps?
Yes, absolutely. Unlike standard frontend developers, I bring complete full-stack depth to your project. I build custom, high-performance Node.js RESTful or GraphQL APIs, configure real-time WebSockets, and architect secure Firebase backends (including Cloud Functions and optimized Firestore indexin
Can you convert complex Figma designs into working Flutter code?
Yes. I specialize in high-fidelity UI/UX conversion. I take your Figma layouts and translate them into pixel-perfect, highly responsive Flutter code. Every animation, custom component, and interface element is optimized to run at a smooth 60–120 FPS across both iOS and Android devices.
Can your apps handle real-time synchronization and offline data storage?
Yes, I have deep technical expertise in handling complex logic. I routinely build mobile systems featuring real-time synchronization, continuous background tasks, offline data caching, dynamic deep-linking, push notifications, and strict error-handling protocols to keep your user experience flawless
What do you need from me before I place an order for mobile app development?
Please send me a message before placing an order to discuss your specific requirements! I will need your app's main goals, any functional requirements or wireframes you have, and your preferred platform timeline so I can structure the right technical roadmap for your project.
Reviews
4 reviews for this Gig
| (3) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
S 
staceyhenrycarr
Repeat Client
United States
Aizaz is always thorough and quick with his understanding of what I need. He did an exceptional job as always.
Up to $50
Price
1 day
Duration
Helpful?P paulobarbosa_
Portugal
Nothing to complain about, 100% professional and delivers the final product on time.
Up to $50
Price
1 day
Duration
Helpful?S staceyhenrycarr
Repeat Client
United States
Aziz Halder is my go-to person for my website updates, and he also does an amazing job. Aziz is effective and timely. He is attentive to the details of what is requested and ask for additional information when needed. I will keep using him for my website updates. Thanks for your work.
Up to $50
Price
1 day
Duration
Helpful?M 
miamijack
Repeat Client
United States
Excellent communications Understands the dev and platforms, and would work again with aizazhaider444. Would recommend with confidence.
Up to $50
Price
1 day
Duration
Helpful?
Reviews
4 reviews for this Gig
| (3) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
S staceyhenrycarr
Repeat Client
United States
Aizaz is always thorough and quick with his understanding of what I need. He did an exceptional job as always.
Up to $50
Price
1 day
Duration
Helpful?P paulobarbosa_
Portugal
Nothing to complain about, 100% professional and delivers the final product on time.
Up to $50
Price
1 day
Duration
Helpful?S staceyhenrycarr
Repeat Client
United States
Aziz Halder is my go-to person for my website updates, and he also does an amazing job. Aziz is effective and timely. He is attentive to the details of what is requested and ask for additional information when needed. I will keep using him for my website updates. Thanks for your work.
Up to $50
Price
1 day
Duration
Helpful?M miamijack
Repeat Client
United States
Excellent communications Understands the dev and platforms, and would work again with aizazhaider444. Would recommend with confidence.
Up to $50
Price
1 day
Duration
Helpful?
