Hello, my name is
I craft secure applications for global businesses.
I'm a Full-Stack App Developer focusing on scalable, production-ready software. I build secure iOS, Android, and web products from the backend architecture to the frontend interface.
5+ years building production Flutter applications for Android and iOS.
class Developer {
final String name;
final String role;
final List<String> skills;
const Developer({
required this.name,
required this.role,
required this.skills,
});
}
void main() {
const azad = Developer(
name: 'Md Azad Hossain Tutul',
role: 'Full-Stack App Developer',
skills: ['Flutter', 'React', 'Node.js'],
);
}01. About
I build stable, production-ready mobile applications. For the past five years, I’ve engineered scalable iOS and Android apps for SaaS, FinTech, and AI companies using Flutter, React, and Node.js. My work goes beyond UI. I handle the entire app lifecycle from clean architecture and secure APIs, to testing and App Store deployment, ensuring reliable products that users love.
Here are the core technologies I work with regularly:
Ongoing
Key Products Shipped
Feb 2024 – Jun 2026
Feb 2022 – Oct 2023
Oct 2021 – Jan 2022
A selection of production mobile applications, FinTech platforms, and AI integrations I have engineered for global clients.
Featured Project
Mobile banking products supporting account onboarding, IBAN operations, SEPA transfers, and secure access.
My Contribution
Flutter Developer
Implemented transfer-state handling and transaction-history screens.
Featured Project
Secure digital identity verification platform supporting document scanning and biometric liveness checks.
My Contribution
Flutter Developer
Delivered a production-ready KYC flow.
Featured Project
VPN app with country selection, connection state, premium plan prompts, and payment-ready upgrade flow.
My Contribution
Flutter Developer
Implemented location selection and connection-state screens.
04. Expertise
I work across mobile, web, and backend systems to turn product ideas into reliable, production-ready software. From application architecture and responsive interfaces to APIs, integrations, deployment, and long-term maintenance, I help teams move from concept to launch without losing technical quality.
Building maintainable Android and iOS applications with Flutter, native integrations, and production-focused architecture.
Creating responsive web products, dashboards, and API-driven interfaces using modern JavaScript frameworks.
Developing secure APIs, authentication, data flows, and backend services to power cross-platform applications.
Connecting wallets, AI, and SaaS platforms, then supporting testing, store deployment, and production maintenance.
Clarify the product goals, users, current system, priorities, risks, and delivery expectations.
Select a practical architecture, define integrations and data flow, and break the work into clear delivery stages.
Build in focused iterations, connect the required systems, and maintain clear progress throughout development.
Validate the product, prepare production releases, support deployment, and continue improving the system after launch.
View detailsPrivate / ClientFull Stack Flutter Developer ·
Wallet and crypto product with four transfer methods, multi-currency balances, and a 10+ asset crypto portfolio.
View detailsPrivate / ClientFull Stack Flutter Developer ·
Fundraising platform with wallet, payment flows, donation actions, and campaign-first experience.
View detailsPrivate / ClientFlutter Developer ·
Agri-investment product where users buy units in livestock and crop projects, choosing between Regular and Sharia-compliant investment tracks.
View detailsPrivate / ClientFull Stack Flutter Developer ·
Faith and community app combining a Quran reader, Zaqat/Sadaqah donation campaigns, a social feed, and a charity-linked shop for Islamic goods.
Testimonials
"I had a fantastic experience with this developer. They delivered a high-quality Flutter app that perfectly met all requirements, including a successful remote setup and live testing on my device. Their expertise and communication were excellent, and I highly recommend Azad."
Verified Upwork Client
Flutter SMS Forwarder App
Articles
Oct 20, 2025
A practical, SEO-friendly guide comparing two top backends for Flutter in 2025 - ecosystem depth vs SQL-first control.
Oct 16, 2025
A behind-the-scenes playbook for founders - based on real projects shipped end to end.
Aug 24, 2025
Flutter makes beautiful apps fast, but performance is often overlooked. Users don't tolerate lag.
Aug 23, 2025
A complete guide to start, stop, and monitor a WireGuard tunnel from Flutter across both platforms.
Oct 7, 2023
The definitive guide to signing, building, and releasing your Flutter app to the Play Store.
05. What’s next?
I’m available for Flutter development, existing-app improvement, FinTech and payment features, production fixes, and long-term maintenance.
Book a 1-on-1 project consultation on Upwork. We can discuss your architecture, timeline, and budget. It’s just $5 to get started.
Book Consultation ($5)