As the sole Software Engineer for a mobile app MVP, I took full ownership of the technical direction and development process, establishing the codebase from scratch using Expo and React Native. I designed and implemented a modular frontend architecture, crafting reusable components to ensure maintainability and scalability. Leveraging Redux Toolkit, I managed global application state efficiently with multiple slices. To support secure AI-driven functionality, I deployed backend Node.js functions interfacing with OpenAI APIs while safeguarding sensitive API keys.

The app incorporates Firebase Authentication for seamless user authentication and a Firestore database for efficient storage and retrieval of user chat histories. I also integrated advanced AI features, such as OpenAI Chat Completion and Vision, to deliver an innovative and engaging user experience. Working closely with the founder, I translated business requirements into technical solutions, troubleshooting complex issues and ensuring optimal app performance throughout the development lifecycle.