Worked on the renesas/zephyr repository to deliver a Device Tree-driven LFXO configuration for the Nordic nRF53 SoC, focusing on correct pin assignment when the LFXO is disabled. The approach involved refactoring hardware configuration by removing deprecated Kconfig options in favor of Device Tree-based settings, which streamlined system setup and improved maintainability. Addressed a long-standing bug where XL1 and XL2 pins were not exposed as GPIOs to the application core when LFXO was disabled, enhancing hardware-software integration. Demonstrated expertise in embedded systems, C programming, and RTOS environments, with a focus on low-level SoC configuration and reliable peripheral operation.