As a Senior Database Administrator, you will be responsible for the installation, configuration, and maintenance of PostgreSQL databases across various platforms including Linux, Unix, and Windows. Your tasks will include performance tuning and optimization of database queries, implementing and managing backup and recovery solutions, designing and enforcing security protocols, and utilizing Python and PowerShell for automation. You'll also deploy and manage PostgreSQL databases on AWS, troubleshoot database-related issues, and collaborate with development teams. This role requires strong database administration skills and a focus on ensuring data integrity, security, and optimal performance, with at least three years of PostgreSQL experience.