Network Engineer

Zachary Piper Solutions is seeking a Network Engineer to support a hybrid enterprise environment for a large organization. The Network Engineer will design, secure, and maintain critical network infrastructure with a focus on firewall management, secure access technologies, and modern zero‑trust principles. This position will be hybrid in Rockville, MD (3 days per week onsite).
Responsibilities of the Network Engineer include:

• Configure, manage, and optimize Palo Alto Networks firewalls and Panorama
• Support and administer Zscaler platforms (ZIA and/or ZPA) for secure cloud access
• Maintain and troubleshoot Cisco networking and security infrastructure
• Manage core networking services including TCP/IP, DNS, DHCP, NAT, and routing protocols (BGP, OSPF)
• Troubleshoot SSL/TLS, PKI, and traffic decryption issues
• Support hybrid enterprise environments with a focus on security and availability
• Assist with network modernization initiatives and zero trust deployments
• Work cross‑functionally with security, cloud, and operations teams to troubleshoot complex issues
• Ensure network configurations follow compliance, security, and governance standards
• Provide documentation, diagrams, and operational guidance as needed

• 5+ years of experience in network security or infrastructure engineering
• Hands‑on experience with Palo Alto firewalls and Panorama
• Strong experience with Zscaler ZIA and/or ZPA
• Experience supporting Cisco networking/security platforms
• Solid understanding of TCP/IP, DNS, DHCP, NAT, BGP, OSPF
• Knowledge of SSL/TLS, PKI, and decryption technologies
• Experience supporting hybrid enterprise or regulated environments
• Eligible for and willing to obtain a Public Trust clearance

• Certifications such as PCNSE/PCNSA, Zscaler ZCCA‑IA or ZCCA‑PA, Cisco CCNP, or Security+
• Experience with Zero Trust architecture
• Cloud networking/security experience (Azure or AWS)
• Familiarity with automation tools such as Ansible, Terraform, or APIs
• Experience with SIEM tools (Splunk or similar)

• Competitive Salary (based on experience)
• Full Benefits:
  Medical, Dental, Vision, 401k, Paid Time Off, and Federal Holidays

This job opens for applications on 1/21/2026. Applications will be accepted for at least 30 days from the posting date.

#LI-MM1 #LI-HYBRID

Network Engineer, Palo Alto, Panorama, Zscaler, ZIA, ZPA, Cisco Networking, Zero Trust, Public Trust, BGP, OSPF, PKI, Terraform, Ansible, Splunk, Cloud Security, Rockville MD