Worked on the chanzuckerberg/cztack repository to deliver security-focused enhancements for cloud infrastructure management, emphasizing reliability and robust data operations. Developed features in Terraform using HCL, including conditional write access for storage credentials by dynamically updating the read_only property, which improved control over production environments. Enhanced Databricks external location handling by introducing a flag for file event notifications and disabling force updates for external storage, reducing instability in data source interactions. The work addressed potential misconfigurations and improved operational stability, demonstrating a methodical approach to infrastructure as code and cloud resource management within a short, focused development period.