Confidential Business Banking App (NDA)
NDA ClientA comprehensive financial platform for small businesses, featuring smart checking accounts, seamless invoicing, and automated cash flow management.
01. Technical Challenge
The client needed a unified business banking solution capable of handling complex transaction categorization, custom reserves, and seamless third-party merchant integrations securely.
02. Architecture & Solution
Architected a secure KMM foundation to handle encrypted transactions and complex state management, ensuring parity between iOS and Android business users.
03. Business Impact
Accelerated feature delivery by sharing core financial logic, empowering thousands of small business owners to manage their finances effortlessly.
04. Architecture Overview
- Core Shared Module: KMM handling all cryptographic operations, invoice generation logic, and transaction categorization.
- Networking: Secure REST client via Ktor with SSL pinning and real-time push integration.
- Storage: SQLDelight with SQLCipher for encrypted local storage of sensitive financial data.
- Integrations Layer: Unified interface for interacting with third-party payment processors like Stripe and PayPal.
05. User Story
- "As a small business owner, I want to create and send professional invoices directly from my phone."
- "As a founder, I want to allocate funds into different reserve categories for taxes and payroll automatically."
Technology Stack
My Role
Lead KMM Architect. Designed the secure shared financial data layer and unified merchant integration interfaces.