Worked on the MITIM-fusion repository to enhance simulation reliability by addressing a bug in the Gaussian sources heating rescaling logic within TRANSP beat handling. Using Python and scientific computing techniques, implemented a conditional rescaling mechanism for plasma profiles, ensuring that rescaling only occurred when heating power was applicable. This targeted fix prevented negative or near-zero values, reducing the risk of invalid plasma profile scaling and improving the accuracy of heating power calculations in production simulations. The change was delivered as a focused, auditable update, contributing to greater code robustness and stability without introducing new features during the development period.