Senior Network Security Engineer Firewall

Lead Zero Trust architecture and Palo Alto firewall engineering at McKesson in a hybrid or remote work arrangement based on business needs. Build secure infrastructure across cloud, data center, and hybrid environments.This senior network security engineering role guides enterprise architecture, implementation, and governance. You will apply segmentation, secure access technologies, threat detection, and network traffic analysis. The work supports scalable, resilient, and compliant network services for critical business operations.Key Responsibilities:
Design secure network architectures using Zero Trust principlesDevelop network segmentation and micro-segmentation strategiesReview security architecture and recommend infrastructure modernizationManage Palo Alto firewalls and security policiesSupport Zscaler, ZTNA, VPN, NAC, and IDS/IPS technologiesRequirements:
Seven-plus years in network security or related engineering rolesBachelor's degree or equivalent education and experienceEnterprise network security architecture design experienceEnterprise firewall administration, including Palo Alto NetworksZero Trust, segmentation, secure access, and traffic analysis experienceApply senior network security expertise across Palo Alto firewalls, Zero Trust architecture, segmentation, and secure enterprise connectivity at McKesson.
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