Grant Riegel worked on hardware design improvements for the ISSUIUC/ISS-PCB repository, focusing on the CAM-MK2 board. He optimized CAN bus routing to enhance communication reliability and fault isolation, and redesigned power management circuitry to integrate power multiplexing and battery sense routing, improving power integrity and safety margins. Using KiCad for PCB layout and hardware design, Grant ensured all changes were committed with clear traceability for future audits. His work addressed system robustness and maintainability without requiring software modifications, supporting safer field deployments and easier scaling. The depth of his contributions reflects a strong focus on reliability and integration.