Network Engineer II

Network Engineer II - TS/SCI Required Suitland, MD Full-Time On-site Immediate Start Join Synertex LLC, where innovation meets mission-critical infrastructure. We're seeking a Network Engineer II with a strong background in Cisco networking technologies to support and enhance enterprise-level network environments. If you're passionate about secure, high-performance systems and thrive in a technical, hands-on engineering role-this opportunity is for you. RESPONSIBILITIES Produce and maintain documentation for network systems, sub-systems, and components, including as-built records and performance plans. Plan and execute lifecycle activities for IT networking portfolios. Operate and maintain Cisco enterprise-level hardware and software solutions. Implement secure encrypted networking devices and ensure compliance with U.S. Government Information Assurance and Security standards. Manage and troubleshoot network-based security technologies, including firewalls and ACLs. Monitor network performance proactively and identify optimization opportunities. Collaborate with IT and cybersecurity teams to support secure networking operations in classified and unclassified environments. REQUIREMENTS Certifications: Cisco Certified Network Associate (CCNA) Routing and Switching and/or CCNA Data Center. 5+ years with enterprise-level Cisco systems (e.g., IOS, NX-OS, ACI) and technologies (Voice, Video, Routing, Switching, Security). 3+ years with Cisco Routing/Switching technologies (e.g., BGP, EIGRP, LACP, HSRP, OSPF, QoS, VRF). 3+ years with encrypted networking devices (e.g., Taclanes, Border Guards). 3+ years with Next-Gen Firewalls and network traffic security. 3+ years in secure environments adhering to DISA SRGs and STIGs. Demonstrated experience in network performance monitoring and tuning. Must meet Cyber IT/Cybersecurity Workforce (CSWF) credential requirements per Section 6, Table 3. Active TS/SCI clearance with ability to take a polygraph DESIRED QUALIFICATIONS CCNP Routing and Switching and/or CCNP Data Center. Experience with Cisco Unified Communications Manager (CUCM), TMS, and VCS. Familiarity with SolarWinds Network Configuration Manager (NCM). Working knowledge of Cisco data center and enterprise WAN/LAN design. INFOSEC-aligned configuration and management experience with Cisco ASA and similar devices. Advanced troubleshooting expertise and issue resolution methodologies. Familiarity with firewall, proxy, and VPN setup, testing, and sustainment. Exposure to Cisco DCNM, ACI, and software-defined networking environments. Why Join Synertex? Competitive PTO 11 Paid Government Holidays 401(k) with 6% Company Match Comprehensive Health Care Options Work that supports national security and innovation Join a mission-driven team building and securing the networks that power national defense and critical operations. Apply today and become part of Synertex's legacy of innovation, leadership, and excellence in defense technology.