Network Administrator

McKesson•Columbus, OH

5d•$90,500 - $150,800

About The Position

The Network Systems Engineer is responsible for administering, supporting, maintaining, and continuously improving enterprise network and security infrastructure in a highly regulated environment. The role is an experienced technical contributor supporting production network operations, security controls, compliance requirements, and infrastructure reliability. It requires hands-on expertise with Palo Alto and Cisco firewalls and experience with 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 (GRC) teams to maintain the availability, security, and compliance of critical infrastructure. The role independently supports complex production environments, maintains accurate technical documentation, contributes to security and compliance activities, and helps 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 4+ 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.
Experience supporting enterprise production infrastructure.
Experience working in regulated or compliance-driven environments.
Experience performing operational maintenance activities, 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.
Strong troubleshooting and analytical abilities.
Exceptional written and verbal communication skills.
Outstanding documentation and organizational skills.
Ability to independently manage operational responsibilities with limited supervision.
Strong attention to detail in compliance-sensitive environments.
Collaborative mindset and ability to work 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.
Network certifications: CCNA or CCNP.
Security certifications: Security+, Palo Alto PCNSA or PCNSE, or CISSP.
Cloud certifications: Azure AZ-104, Azure AZ-700, or AWS Certified Advanced Networking.
Service management certification: 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 and resolve network connectivity and performance issues.
Support network infrastructure upgrades and lifecycle management, participate in change management and maintenance activities, and perform root cause analysis on network service incidents.
Support F5 load balancing technologies and maintain 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, access management, operational maintenance, and validation activities.
Support disaster recovery and business continuity testing, and maintain operational runbooks and procedures.
Participate in audit readiness, evidence collection, and remediation; help maintain technical controls aligned with regulatory and security requirements and protect PII and PHI.
Follow established configuration management and change control processes.
Use monitoring and observability platforms to identify issues; review network health, capacity, availability, and performance metrics.
Support operational reporting, dashboard development, and continuous service improvement initiatives.
Develop and maintain network diagrams, technical procedures, standards documentation, operational guides, and audit-ready documentation.
Collaborate with infrastructure, engineering, cybersecurity, and GRC teams and participate in incident, change, and problem management processes.