Hello, I'm
Alexander Amoah
Lead Mobile & Full-Stack Engineer with expertise in developing high-performance applications and backend solutions using Flutter and Dart. Strong background in integrating advanced features such as KYC verification and payment systems, effectively enhancing user experiences across multiple platforms.
About Me
Lead Mobile & Full-Stack Engineer with expertise in developing high-performance applications and backend solutions using Flutter and Dart. Strong background in integrating advanced features such as KYC verification and payment systems, effectively enhancing user experiences across multiple platforms.
I specialize in building cross-platform mobile applications with Flutter and Dart, backed by robust serverless architectures. My experience spans fintech platforms with payment integrations, food delivery systems with real-time tracking, and logistics applications with complex API ecosystems.
Based in Kumasi, Ghana, I work with international teams to deliver production-grade software that scales. I'm passionate about clean architecture, reactive programming, and creating seamless user experiences.
Flutter & Mobile Development Skills
Technologies and tools I use to bring ideas to life
Mobile App Engineering Experience
Senior Mobile Engineer
Accra, Ghana
- ▹Scaled mobile app to 1.3K+ active users by developing core product features and backend infrastructure.
- ▹Built an auto-deposit system with scheduling, OTP verification, lifecycle monitoring, and mobile money wallet integration.
- ▹Implemented Recurring Payment Plan (RPP) webhook infrastructure with idempotent processing and status management.
- ▹Integrated brokerage APIs for deposits, withdrawals, portfolio balance tracking, and investment management.
- ▹Developed a reward redemption system enabling users to access airtime, data bundles, ECG/GWC payments, and TV subscriptions.
- ▹Built a KYC verification pipeline, including Ghana Card verification, document uploads, and status monitoring.
- ▹Full-stack development across the mobile application and serverless backend powering a production fintech platform.
Tech Stack
Web Developer
Accra, Ghana
- ▹Built the entire company website for a web design agency, including responsive landing pages, service showcases, pricing sections, and client testimonials.
- ▹Developed a portfolio showcase with animated project cards, industry-specific service pages, and an integrated contact/quote request system.
- ▹Implemented SEO-optimized page structures, FAQ sections, and a multi-step process overview to effectively communicate business offerings.
- ▹Designed and built mobile-first responsive layouts with modern UI patterns including carousels, pricing tables, and trust indicators (Trustpilot, Google ratings).
Tech Stack
Lead Mobile Engineer
New York, USA
- ▹Developed an entire customer app for an on-demand laundry platform with clean architecture, repository pattern, and DI for authentication, orders, location, notifications, and profiles.
- ▹Developed a customer mobile app and contributed to a merchant tablet app for a seamless two-app Flutter laundry service system.
- ▹Integrated Google Maps for real-time tracking, enhancing nearby laundry merchant search, and address autocomplete functionalities.
- ▹Implemented push notifications with timezone-aware scheduling, improving user engagement through effective runtime permission handling.
- ▹Added multi-language support (English/French) and optimized performance with caching, pagination, and HydratedBloc state persistence.
Tech Stack
Junior Mobile Engineer
Accede
Accra, Ghana
- ▹Executed Flutter mobile UI implementation, transforming design mockups into responsive, user-friendly interfaces.
- ▹Collaborated with senior engineers to enhance API modules for Customers, Shipments, and Notifications.
- ▹Defined and consumed API contracts between backend services and Flutter clients, ensuring reliable communication.
- ▹Acquired practical experience in a Swagger-documented API environment, focusing on RESTful design best practices.
Frontend Mobile Engineer
Akosombo, Ghana
- ▹Contributed to the VCSA Client Mobile App — a B2C platform for Volta River Authority (VRA) enabling customer service, complaint submission, and service requests.
- ▹Contributed to the ACSA Admin Mobile App — a staff-facing app for VRA handling day-to-day activities, complaint response, and company-wide information dissemination.
- ▹Built UI screens for both mobile apps and a desktop admin dashboard from Figma designs, ensuring responsive layouts across mobile and desktop.
- ▹Implemented business logic and integrated frontend flows with backend services across the product suite.
- ▹Created reusable Flutter widgets and ensured consistent UI components across all three applications.
Featured Apps & Projects
Phundit — Fintech Investment Platform
A production fintech mobile app enabling users to invest, track portfolios, and manage finances through mobile money.
Key Features
Bubbles — Laundry Delivery Platform
A two-app Flutter system with a customer mobile app and merchant tablet app for an on-demand laundry delivery service.
Key Features
Accede — Logistics & Shipping App
A Flutter mobile app for managing customers, shipments, and notifications in a logistics environment.
Key Features
Sibyl Systems — Multi-Platform Suite
A suite of three Flutter applications: customer app, admin app, and desktop admin dashboard.
Key Features
Boola — Trash Pickup & Waste Management
A cross-platform mobile app for on-demand trash pickup and waste management, built as a solo personal project.
Key Features
Education
Bachelor of Science — Information and Communication Technology
Akenten Appiah-Menka University of Skills Training and Entrepreneurial Development
Kumasi, Ghana • 2024
Developed and managed a website for the school's Infotess department, ensuring its effective functionality and content management.
High School Diploma
Acherensua Senior High School
Acherensua, Ghana • 2017
Get in Touch
I'm always open to discussing new projects, creative ideas, or opportunities to be part of your team.
Drop me a line anytime
amoahtnt6@gmail.com
Phone
Available during business hours
+233558060860
Location
Based in Ghana, open to remote
Kumasi, Ghana