Duke AERO is a collegiate high-powered rocketry organization competing in the International Rocketry Engineering Competition (IREC). I work on both the Avionics and Liquid Propulsion sub-teams, with a primary focus on embedded systems in high-reliability aerospace applications. As an avionics engineer, I'm developing a long-range digital live-video transmission system capable of streaming onboard rocket footage to a ground station over 12 km away. On the Liquid Propulsion team, I lead the design and development of a custom Engine Control Unit (ECU) for a 2.5 kN regeneratively cooled liquid rocket engine, owning the electrical architecture, schematic design, PCB layout, power distribution, high-frequency sensor acquisition, and valve/actuator control systems. I transitioned the test stand from a protoboard-based DAQ setup to an integrated multi-board ECU platform, improving reliability, reducing setup time from hours to minutes, and more than doubling data sampling rates while enhancing EMI isolation and power integrity for engine testing.