I developed a mobile fintech platform for the startup “Poler”, building the entire technical side of the product from the ground up. I designed the app for two types of users: businesses looking to raise investment, and everyday users looking to invest and trade assets directly through the platform.

I was responsible for turning product requirements and frontend designs into a fully functioning system. This included overall architecture, database design, backend development, mobile app development, infrastructure, deployment, and security.

I designed the platform to feel professional, secure, and scalable from day one. I built the backend architecture to support live trading activity efficiently while also making it easy to extend and maintain as new features are added over time.

On the frontend, I developed the mobile application in React Native, carefully translating designs into polished, responsive screens with strong attention to detail and user experience.

On the backend and infrastructure side, I built and managed the full cloud hosting environment, deployment pipeline, and security setup. I implemented enterprise-style security practices to protect user accounts and financial activity, ensuring all systems were securely routed through backend services rather than exposing internal services directly to the internet.