- Architect and sole software developer for UTVATE’s user terminal program- Developing a multi-processor system consisting of an application processor and multiple microcontrollers to control a phased array antenna for satellite communications- Building software for a custom Yocto-based Embedded Linux system to provide high-level control of the user terminal- Building firmware for microcontrollers responsible for controlling RF circuitry

- Principal engineer for Square’s fork of Android powering the Square Register and Square Terminal products. Product owner and technical lead responsible for identifying and implementing improvements to the operating system running 400k+ Point of Sale devices in the field. - Architected and led development of a new app update system for Square’s fork of Android. Collaborated with multiple stakeholder teams; directed the efforts of engineers on multiple teams; and contributed directly to development. Built out a system app in Kotlin to perform updates.- Re-architected the hardware-in-the-loop test automation system for all of Squares hardware, in partnership with firmware and infrastructure leads. Assisted in getting buy-in from leadership to restructure and staff up infrastructure teams. Led development and contributed directly to the project (built in python).

Managed a team of 5-7 engineers working on products based on AOSP (Android Open Source Project).As the leader of the Android Platform Team, I was responsible for the ongoing development of the operating system software for all Square's Android-based products (Square Terminal & Square Register) in the field. My responsibilities included:- Technical oversight and mentoring of the team- Ownership and development of the technical roadmap for the team in collaboration with the Hardware Product Management team, as well as teams delivering customer facing software (Square Point of Sale)- Task allocation, prioritization, and planning at the sprint level, as well as quarterly and annual planning.- Represent the team, both technically and organizationally, in broader org discussions.

- Designed and led development of a push notifications system for Square’s fork of Android. Built out a system app in Java and used an MQTT (AWS IoT) backend to deliver notifications.- Developed system app to perform OS updates- Implemented Android Verified Boot 2.0 for Square’s Android hardware - Designed and led development of hardware abstraction library to centralize and manage app interactions with the operating system- Developed touchscreen Linux kernel driver and native Linux userspace updater service for the touchscreen firmware, and worked with vendor to resolve performance problems prior to product launch- Developed integration tests for hardware-in-the-loop testing (using python framework).

I worked on the Firmware team where I contributed in many different ways: from experimenting with and bringing up new hardware and writing drivers; to application logic, UI and developing new APIs for external developers. I've also played the role of release manager and have led development of new products and features.

Embedded C development for stolen vehicle recovery and fleet management products. Involved in architectural design for a scalable, portable firmware platform. Key responsibilities include power management, accelerometer-based crash detection and CAN bus communication.Java development for an in-cab tablet displayMaintenance of legacy firmware

Developed firmware for a radar remote control system, two different long range distance measurement devices and a vending machineAssisted hardware designPerformed hardware testingGenerated documentation and test procedures

Automation of drawing production in a drafting office