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Sifat Hasan
@sifat420
Senior Flutter Developer, FinTech and Secure Mobile App Specialist
Bangladesh
English, Hindi
About me
I’m a Senior Flutter Developer with 5+ years of experience building high-quality Android and iOS apps. I specialize in complex mobile applications, FinTech, secure app development, API integration, AI-powered features, background services, location tracking, and performance optimization. I also work with Node.js, NestJS, FastAPI, Go, PostgreSQL, MongoDB, Redis, and Docker, allowing me to handle both mobile and backend development. I focus on solving complex technical problems and delivering scalable, maintainable, production-ready solutions.
Skills
Sifat Hasan
Offline •
See my services
Cross-Platform Development
I will build a professional flutter app for ios and android in 7 days
Portfolio
Work experience
Senior Software Engineer
Tahweel • Full-time
Jan 2026 - Aug 2026 • 7 mos
Tahweel — Cross-border FinTech Wallet · 2025 · 500K+ downloads App for international money transfers, live-rate USD/EUR conversion, QR payments, and goal-based savings. Lead Mobile Developer — integrated [payment/KYC provider, Mall feature], shipped to Play Store and App Store.
Senior Software Engineer
Upscale BD • Full-time
Jan 2025 - Feb 2026 • 1 yr 1 mo
Leading development of enterprise HR and attendance solutions, owning architecture and delivery end-to-end. Digigo — complete HR solution Attendx — attendance management for ActionAid
Software Engineer
MAAC • Full-time
Mar 2021 - Jan 2025 • 3 yrs 10 mos
Built sales-force automation, activation, and edtech platforms for some of the largest enterprises in the region. Salesx — sales automation for Samsung Bangladesh Fieldx — sales & field management for Abul Khair Group Pmx — activation management for Unilever Shomriddhi — edtech platform Hrx — HR solution
6 Reviews
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Rating Breakdown
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1-5 out of 6 Reviews
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trickymart
India
Ongoing collaboration
Another good deal done I want to work with him more
$50-$100
Price
Helpful?
trickymart
India
Ongoing collaboration
The quality of his work is so excellent that he is worth working with again and again
$50-$100
Price
Helpful?
trickymart
India
Ongoing collaboration
nice 👍 is I'll work again with sifat in future
$50-$100
Price
Helpful?
trickymart
India
Ongoing collaboration
Nice work done by Sifat Hassan, and it's very supportive... and I work further with him. Thank You Sifat Hassan
$100-$200
Price
Helpful?
victorhathaway
United States
Great work , great experience every time. Thanks 🤙
$50
Price
Helpful?
