Network Administrator

McKesson • Columbus, OH

19d

About The Position

The Network Systems Engineer is responsible for the administration, support, maintenance, and continuous improvement of enterprise network and security infrastructure within a highly regulated environment. The role supports production network operations, security controls, compliance requirements, and infrastructure reliability, with hands-on expertise in Palo Alto and Cisco firewalls and experience supporting enterprise networking, load balancing, cloud connectivity, and operational infrastructure services.

The engineer works with Systems Administration, Senior Systems Engineering, Senior Network Engineering, Cybersecurity, and Governance, Risk, and Compliance teams to maintain the availability, security, and compliance of infrastructure supporting regulated business operations. The role requires the ability to independently support complex production environments, maintain accurate technical documentation, contribute to security and compliance activities, and help protect sensitive information, including PII and PHI.

Requirements

• Bachelor's degree in Computer Science, Information Technology, Cybersecurity, Engineering, or a related field, or equivalent experience.
• Typically requires 4 or more years of relevant network engineering, network administration, or network security experience.
• Experience administering Palo Alto firewalls.
• Experience administering Cisco firewalls.
• Experience supporting Cisco switching environments and enterprise production infrastructure.
• Experience working in regulated or compliance-driven environments.
• Experience performing operational maintenance, including patching, upgrades, and user administration.
• Knowledge of TCP/IP networking, routing and switching, VPN technologies, network security principles, DNS and related network services, high availability, load balancing, cloud networking fundamentals, and monitoring and observability concepts.
• Strong troubleshooting and analytical abilities.
• Exceptional written and verbal communication skills.
• Strong documentation and organizational skills.
• Ability to independently manage operational responsibilities with limited supervision.
• Strong attention to detail in compliance-sensitive environments.
• Ability to collaborate effectively across infrastructure, engineering, cybersecurity, and compliance teams.
• Commitment to operational excellence, security, and regulatory compliance.

Nice To Haves

• Experience supporting federal, healthcare, or other highly regulated environments.
• Familiarity with NIST SP 800-53 security controls.
• Familiarity with DISA STIG security configuration standards.
• Familiarity with HIPAA compliance requirements.
• Experience protecting regulated information, including PII and PHI.
• Experience supporting audit and compliance activities.
• Experience with Azure, AWS, or hybrid cloud networking environments.
• Experience with automation technologies such as PowerShell, Python, or Ansible.
• Familiarity with vulnerability management processes and security remediation activities.
• Preferred certifications: CCNA, CCNP Security, Security+, Palo Alto PCNSA, Palo Alto PCNSE, CISSP, Azure AZ-104, Azure AZ-700, AWS Certified Advanced Networking, or ITIL Foundation.

Responsibilities

• Administer and support Palo Alto Networks and Cisco firewall platforms.
• Implement approved firewall rules, VPN configurations, NAT policies, and network segmentation requirements.
• Assist with vulnerability remediation and security hardening; participate in security incident investigation and resolution.
• Support implementation of security controls and approved security baselines.
• Support Cisco switching and routing environments; troubleshoot network connectivity and performance issues.
• Participate in network infrastructure upgrades, lifecycle management, change management, and maintenance activities.
• Perform root cause analysis on network service incidents.
• Support F5 load balancing technologies, including virtual servers, traffic management policies, SSL configurations, and application delivery services.
• Partner with application support teams to maintain highly available services.
• Apply patches, firmware updates, hotfixes, and security updates; perform user administration and access management.
• Execute operational maintenance and validation procedures and support disaster recovery and business continuity testing.
• Maintain operational runbooks and support procedures.
• Support infrastructure in federal, healthcare, or other highly regulated environments; participate in audit readiness, evidence collection, and remediation.
• Assist with maintaining technical controls aligned with regulatory and security requirements and support protection of PII and PHI.
• Follow configuration management and change control processes.
• Use monitoring and observability platforms to identify service and infrastructure issues; review network health, capacity, availability, and performance metrics.
• Support operational reporting and dashboard development and participate in continuous service improvement.
• Develop and maintain network diagrams, technical procedures, standards documentation, and operational guides, keeping documentation accurate and audit-ready.
• Collaborate with infrastructure, engineering, cybersecurity, and GRC teams and participate in incident, change, and problem management.

Benefits

• Competitive compensation package as part of McKesson's Total Rewards.
• An annual bonus or long-term incentive opportunities may be offered in addition to base pay.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level