• Activated & maintained up to 11,000 user accounts, diagnosed & resolved Windows & Exchange problems and ensured email security. • Manage Exchange recipients - create, modify, delete, shared mailbox, recover deleted emails. • Knowledge and extensive hands-on experience in installation, configuration and support on Exchange 2010 / 2013. • Creating, Managing user and distribution groups, various user related tasks such as mailbox movement, managing mailbox size, mailbox permission, and managing mailbox features. • Knowledge of working with Microsoft Office 365, AAD Connect, ADFS. • Completed migrations from Exchange to Microsoft Office 365.