Hello, I'm
Shazzad Hossain
Building Android and iOS apps with Flutter, dependable Laravel integrations, and AI/OCR features. Human judgment, reviewed code, and practical delivery — from UI to store release.
Experience
Flutter development across remote teams and client applications
Backend Developer
Star Innovative Technologies Ltd.
Optimizing FastAPI backend performance, maintaining production REST APIs, and enforcing code quality through structured PR reviews.
- ▸Optimized API response times by profiling slow ORM queries and restructuring PostgreSQL indexes, reducing average endpoint latency from 2s to under 200ms
Apps. In motion.
Real screens. Real products. Explore the experience before you open the store.
Actual application screens · App availability varies by platform and region
Skills & Tools
Tools I use to build, maintain and release mobile applications
Backend & APIs
Databases & Caching
DevOps & Cloud
Auth & Payments
Scraping & AI
Frontend
About
Flutter Developer. AI-assisted Mobile Engineer.
I build and maintain Android and iOS applications with Flutter and Dart, working with Firebase, REST APIs, AI/OCR features, and subscriptions. My work covers UI implementation, debugging, device testing and store release.
My app work includes GROC AI, KLOD Virtual Fashion, ReadLens, and customer/seller commerce apps. I use AI as a development tool while owning the architecture, reviewing the code, investigating issues, and testing the result on devices.
Based in Rangpur, Bangladesh. Open to Flutter Developer, Junior/Associate Flutter Developer and AI-assisted mobile development opportunities. View my work and client history on Upwork.

Upwork Job Success
Upwork Jobs
Upwork Hours
Let's Build Something.
Open to Flutter, Laravel and AI-assisted mobile development opportunities