Open to opportunities

Alexander Amoah

@alexanderamoah

Message

I build Flutter mobile products, fintech platforms, and full-stack systems used by customers across Ghana and the US.

Ghana

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I've built production mobile products for Phundit, Bubbles, Accede, and Sibyl Systems, spanning fintech, logistics, on-demand laundry, and utility platforms.

At Phundit, I built the mobile product from scratch and helped scale it to 5K+ active users, shipping investment features, MTN MoMo payments, auto-deposits, KYC verification, and brokerage integrations. I also built engagement features that increased user engagement and deposit frequency by more than 30%.

I work primarily in Flutter and Dart, with full-stack experience across Node.js, TypeScript, PostgreSQL, Firebase, React, and Next.js. I’ve also delivered end-to-end products independently, including a retail POS system and a waste-management app.

Experience

Work history, roles, and key accomplishments

Current

Senior Mobile Engineer

Current

Phundit

Aug 2024 - Present (2 years 1 month)

Built the mobile product from scratch and scaled it to 5K+ active users, shipping investment features, a serverless Node.js backend, and mobile money payments. Engineered auto-deposit system with OTP, recurring schedules, idempotent webhooks, and backend job schedulers.

Flutter Dart NodeJS TypeScript Firebase BLoC

Lead Mobile Engineer (Contract)

Bubbles

Nov 2025 - Feb 2026 (3 months)

Designed and shipped two Flutter apps in 3 months: customer mobile app and merchant tablet app for on-demand laundry. Led architecture with clean architecture, DI, and repository pattern; integrated Google Maps for real-time tracking.

Flutter Dart Google Maps Firebase BLoC REST APIs

Mobile Engineer (Concurrent)

Accede

Sep 2024 - Nov 2025 (1 year 2 months)

Contributed to a large-scale logistics app alongside a senior engineer, building consignment management, shipment tracking, and quotation workflows. Implemented Stripe payment integration, subscription management, and Twilio-based messaging with real-time chat.

Flutter Dart Stripe Twilio Firebase Google Maps

Mobile Engineer

Sibyl Systems

Mar 2023 - Jul 2023 (4 months)

Engineered VCSA client app for Volta River Authority (1K+ downloads, 5.0 Play Store rating) with service requests, complaint filing, and incident tracking. Built live chat, real-time status tracking, and push notifications for updates and emergency broadcasts.

Flutter Dart Firebase Figma