Dan Holler

Dan Holler, PMP, has over 25 years of experience in information systems and IT security, currently serving as the Vice President of Information Systems at Tanager Inc. since April 1998. In this role, Dan oversees all aspects of Tanager's infrastructure and program management for federal civilian and commercial programs, including proposal and compliance management. Dan has successfully led significant technology transformations, such as migrating from a Windows to a CentOS environment and achieving NIST 800-171 compliance. Previous positions include Senior Firewall Engineer and Director of IT Security, where Dan managed security measures and led teams to enhance infrastructure performance. Dan's technical expertise encompasses firewalls, VPN management, disaster recovery, and server administration, supported by roles at HealthCare Automation and Giant of Maryland, focusing on system administration and software development.