Drew Sommer

BarAudio is a voice-first Android application that delivers real-time financial market alerts via low-latency mobile infrastructure. The app was built to solve a specific product challenge: how to deliver actionable market signals immediately and hands-free, without requiring users to constantly monitor charts or notifications.

The Android client was built with Kotlin and Jetpack Compose, using a modern architecture centered on coroutines, Room, and Firebase-backed event delivery. The system supports real-time signal ingestion, local persistence, and live user-facing alert delivery with a strong emphasis on reliability, responsiveness, and maintainable architecture.

This project required end-to-end ownership across mobile architecture, backend-integrated workflows, real-time event handling, and production product design.

I contributed to a large-scale Android mobile banking platform supporting retirement, brokerage, and cash account management. My work focused on building and improving complex transaction flows, modernizing application architecture, and delivering reliable mobile experiences in a regulated financial environment.

The Android codebase spanned both Kotlin and Java, and required careful work across reactive state handling, back-end-integrated workflows, and maintainable feature implementation. I contributed to architectural improvements using MVVM-style patterns, asynchronous data handling, and a cleaner app structure to support long-term maintainability and production stability.

This work required balancing feature delivery, technical debt reduction, and production reliability in a high-trust financial product used by a large customer base.

I contributed to the Android application for a large-scale EV charging network supporting real-time visibility into station and charger availability across North America. The app enabled users to locate chargers, monitor live status, and interact with charging infrastructure through a mobile-first experience.

My work focused on building mobile features backed by real-time data streams, implementing scalable Android architecture, and supporting a responsive user experience under continuously updating conditions. The system required careful handling of live data, asynchronous workflows, and reliable client-side state management.

I also contributed to improving delivery workflows and supporting a shared codebase used for partner-specific deployments, enabling efficient release of branded mobile applications.