Zachary Piper Solutions is seeking a Network Engineer to support a premier aerospace and defense program in Colorado Springs, CO. This opportunity is ideal for a hands-on networking professional with experience supporting complex enterprise and DoD network environments. The selected candidate will be responsible for the implementation, maintenance, troubleshooting, and optimization of mission-critical network infrastructure supporting national defense initiatives. This is a fully onsite role. Candidate must hold an active Top Secret Clearance. Responsibilities Include: • Configure, maintain, and troubleshoot enterprise network infrastructure in LAN/WAN environments. • Support network operations to ensure high availability, reliability, and performance. • Configure and administer routers, switches, and firewalls, including Cisco, Juniper, Fortinet, and Palo Alto technologies. • Monitor network performance and proactively resolve latency, connectivity, and packet loss issues. • Implement and support routing protocols including BGP and OSPF. • Configure and maintain VLANs, GRE tunnels, multicast networking, and TCP/IP architectures. • Perform root cause analysis and resolution of network incidents and outages. • Support infrastructure upgrades, technology refreshes, and network modernization initiatives. • Travel to remote locations to perform network installations, troubleshooting, and sustainment activities. • Document network changes, troubleshooting efforts, and technical solutions. • Provide status updates and technical communication to program stakeholders and leadership. • Support mission requirements outside normal business hours when necessary. Required Qualifications: • 3+ years of network engineering or related experience. • Active Secret Security Clearance. • U.S. Citizenship required. • Valid U.S. Passport. • Current IAT Level II 8570-compliant certification such as: • Security+ • SSCP • CISSP • GSEC • CISA • SCNP • SCNA • GSE • Current CCNA or JNCIA certification. • Experience supporting enterprise network design, implementation, testing, and troubleshooting. • Strong understanding of: • OSI Model • TCP/IP • BGP • OSPF • VLANs • UDP Multicast • GRE Tunnels • Experience administering firewalls, particularly: • Juniper • Fortinet • Palo Alto • Experience with multi-vendor routing and switching environments, including Cisco and Juniper. • Hands-on experience with WAN optimization technologies, TACLANEs, and optical transport equipment. • Strong network analysis, troubleshooting, and diagnostic skills. • Excellent written and verbal communication skills with proficiency in Microsoft Office, PowerPoint, and Visio. Preferred Qualifications: • Active Top Secret Clearance. • CCNP or JNCIP certification. • Experience with VMware technologies including NSX, vSAN, and Aria. • Experience with network automation using Ansible. • Familiarity with DoD cybersecurity requirements, including STIG compliance and accreditation processes. • Prior experience supporting large-scale command and control, military communications, or defense programs. Technical Environment: • Cisco & Juniper Networking • Palo Alto & Fortinet Firewalls • BGP & OSPF Routing • VLANs & GRE Tunnels • UDP Multicast • TACLANEs • Optical Transport Systems • VMware NSX, vSAN, & Aria • Ansible Automation • Enterprise LAN/WAN Infrastructure Salary and Benefits Include: • Salary Range: $120,000-180,000 **depending on experience** • Full Benefits: Cigna Medical, Dental, Vision, 401K, PTO, Sick Leave if required by law, and Holidays