Mohammad
SeyedMahmoudi
Mobile App Engineer · Fintech Specialist
I architect and ship production-grade Flutter applications for fintech, marketplaces, and high-scale mobile products — from secure payment flows to polished cross-platform UX.
Building mobile products that scale
From fintech startups to marketplace platforms — I turn complex requirements into polished, production-ready Flutter applications.
Professional Summary
Experienced Flutter Developer with over 6 years of hands-on experience building scalable mobile applications and fintech platforms. Skilled across the full mobile application lifecycle — responsive UI/UX, backend integration, REST APIs, and production deployment. Strong understanding of software architecture, the Firebase ecosystem, infrastructure workflows, and modern app monetization.
Career Story
From co-founding fintech startups to leading mobile development on international card and marketplace platforms, I've spent my career turning complex financial workflows into intuitive mobile experiences. I combine deep Flutter expertise with backend awareness, helping teams ship faster without compromising on security, performance, or design quality.
Education
Bachelor's Degree in Software Engineering
Shahid Rajaee University, Tehran · 2020
Languages
- PersianNative
- EnglishProfessional Working Proficiency
Areas of Expertise
Experience Timeline
Graduated Software Engineering — Shahid Rajaee University
Started professional Flutter development career
Co-founded Hexacard · Joined Zeepay as Flutter Developer
Co-founded Numship marketplace platform
Building fintech products · Open to international opportunities
Years of Experience
Production Apps
Fintech Projects
Technologies Mastered
Technical expertise
A comprehensive toolkit spanning mobile development, backend integration, cloud services, and fintech architecture.
Mobile Core
Backend & APIs
Cloud & Tools
Design & Frontend
Architecture
Professional journey
Co-founding fintech startups, contributing to international card platforms, and mentoring the next generation of developers.
Fintech platform enabling users to purchase virtual credit cards in the US and Turkey.
Responsibilities
- Developed and maintained cross-platform Flutter applications for iOS and Android
- Implemented secure API integrations and payment-related workflows
- Built responsive production-grade UI with Firebase services and analytics
Achievements
- Shipped a production fintech app serving international card purchase flows
- Established scalable mobile architecture as co-founder and lead developer
Turkish fintech platform providing physical and virtual card services.
Responsibilities
- Contributed to scalable mobile application architecture
- Integrated REST APIs and financial workflows
- Improved application stability and user experience
Achievements
- Enhanced app reliability across critical financial user journeys
- Delivered polished UI for card management and payment features
Virtual numbers, gift cards, and eSIM marketplace serving digital commerce users.
Responsibilities
- Led mobile application development and product architecture
- Implemented production-ready Flutter application with responsive design
- Integrated Firebase services and monitoring systems
Achievements
- Built end-to-end marketplace mobile experience from concept to production
- Established monitoring and analytics for production reliability
Cryptocurrency exchange platform with automated trading and backend systems.
Responsibilities
- Contributed to infrastructure automation and bot development
- Collaborated on backend communication systems and service integration
Achievements
- Supported automation workflows for exchange operations
- Improved service integration reliability across backend systems
Technical High School
Computer Teacher
Teaching software and computer-related subjects to technical high school students.
Responsibilities
- Teaching programming and software development fundamentals
- Mentoring students in practical development workflows
Achievements
- Guided students through hands-on programming projects
- Built foundational skills in software engineering for the next generation
Selected work
Production fintech platforms, marketplace apps, and media products — from concept to App Store deployment.
Production App
Visit LiveHexacard
Virtual credit cards for US & Turkey
Production fintech platform enabling users to purchase and manage virtual credit cards across international markets. Built as co-founder and lead mobile developer with secure payment flows and Firebase-backed analytics.
Key Features
- Virtual card purchase workflows
- Secure API integrations
- Cross-platform Flutter UI
- Firebase analytics & monitoring
Production App
Visit LiveZeepay
Physical & virtual card services
Turkish fintech mobile application for physical and virtual card services. Focused on scalable architecture, REST API integration, and polished financial UX for production users.
Key Features
- Card management flows
- Financial API integration
- Production-grade stability
- Responsive mobile UI
Receta
Complete restaurant super-app ecosystem
End-to-end restaurant management ecosystem spanning customer ordering, merchant dashboards, courier tracking, POS, inventory, accounting, and admin panels — built for real-world operational scale.
Key Features
- Customer & merchant apps
- Live order tracking with maps
- Sales analytics dashboard
- Inventory & POS management
Arzino
Crypto & currency rates platform
Fintech application for real-time currency rates, crypto trading charts, and financial data visualization. Features RTL support, dark/light themes, and advanced charting for market analysis.
Key Features
- Real-time currency & crypto rates
- TradingView-style charts
- RTL bilingual support
- Dark & light theme modes
Production App
Visit LiveNumship
Virtual numbers, gift cards & eSIM
Digital marketplace for virtual phone numbers, gift cards, and eSIM products. Led as co-founder with full mobile architecture, Firebase integration, and production monitoring.
Key Features
- Digital product marketplace
- eSIM & gift card flows
- Firebase monitoring
- Responsive commerce UI
Production App
Visit LiveArsonex
Cryptocurrency exchange platform
Production cryptocurrency exchange platform with trading infrastructure, automated systems, and backend service integration. Contributed to infrastructure automation, bot development, and reliable exchange operations.
Key Features
- Crypto exchange infrastructure
- Automated trading systems
- Backend service integration
- Production exchange operations
Tranda
On-demand services marketplace
Platform connecting employers with workers and freelancers. Features provider profiles, verified accounts, contract management, payment breakdowns, and real-time request tracking.
Key Features
- Provider discovery & hiring
- Contract & payment flows
- Verified provider profiles
- Live request management
Bia2 Movies
Streaming & media platform
Streaming and video access platform with online viewing, offline downloads, subscription tiers, and social commenting — designed for high engagement media consumption.
Key Features
- Movie discovery & streaming
- Offline download manager
- Subscription monetization
- Social comments & ratings
VPN VIVA
Premium VPN utility app
Feature-rich VPN application with protocol selection, server location switching, real-time connection stats, and premium subscription tiers with polished dark UI.
Key Features
- Multi-protocol VPN support
- Server location selection
- Premium subscription tiers
- Real-time connection stats
Let's build something great
Open to remote roles, freelance projects, and international relocation opportunities. Reach out — I'd love to hear from you.