Ross McCallister

Background

About Ross McCallister

Results-driven cybersecurity professional with over a decade of experience in risk management, security assessments, and infrastructure protection across global enterprise environments. Recognized for executing 115+ in-depth security assessments and identifying over 400 vulnerabilities in a single year—achieving an exceptional 94% remediation rate by collaborating closely with vendors and internal stakeholders. I specialize in strengthening organizational security postures by streamlining risk assessment processes, eliminating inefficiencies, and engineering secure cloud and mobile environments. My background includes leading global MDM implementations for devices, deploying Microsoft Intune, and integrating hybrid-cloud solutions aligned with compliance frameworks like NIST, ISO 27001, and SOC 2. A strong communicator and team leader, I bridge technical expertise with strategic risk governance to drive enterprise-wide cybersecurity initiatives. Certified in CISSP, CCSP, and CGRC, with deep proficiency in Microsoft Azure, VMware, and security operations across diverse platforms.