Senior Network Engineer

Senior Network Engineer About Essnova Solutions Essnova Solutions is a fast-growing federal contractor delivering innovative technology, cybersecurity, cloud, and digital transformation solutions to Federal Government customers. We are seeking a highly skilled Senior Network Engineer to support an upcoming federal program focused on enterprise infrastructure modernization, Zero Trust implementation, cybersecurity, and network resiliency. *This is for a proposal opportunity* Position Overview The Senior Network Engineer will serve as a technical leader responsible for designing, implementing, securing, and maintaining enterprise network infrastructure supporting mission-critical federal operations. This role requires deep expertise in Cisco networking technologies, network security, Zero Trust architecture, and federal IT environments. Responsibilities Design, implement, and maintain secure enterprise network architectures Lead network modernization and infrastructure improvement initiatives Design and support core, distribution, and edge network environments Configure and maintain routing, switching, firewalls, VPNs, DNS, and DHCP services Implement Zero Trust principles including segmentation, micro-segmentation, and least-privilege access controls Integrate network telemetry and monitoring capabilities with SIEM and security platforms Lead vulnerability remediation and network hardening activities Support incident response efforts through network analysis, containment, and remediation Develop and maintain network architecture diagrams, SOPs, and technical documentation Collaborate with cybersecurity, cloud engineering, and infrastructure teams to improve security posture and operational resilience Support lifecycle management, upgrades, and technology refresh initiatives Required Qualifications Bachelor's degree in Information Technology, Computer Science, Engineering, or related field (or equivalent experience) 8+ years of enterprise network engineering experience Expert-level experience with Cisco networking technologies Strong knowledge of routing, switching, VPNs, DNS, DHCP, and network architecture Experience designing and supporting highly available enterprise networks Experience implementing network security controls and best practices Knowledge of NIST cybersecurity frameworks and federal security requirements Experience supporting incident response and vulnerability management activities Ability to obtain and maintain a Public Trust clearance Preferred Qualifications CCNP Enterprise, CCIE, or equivalent certification Experience with Palo Alto, Cisco Firepower, Cisco ISE, or similar technologies Experience implementing Zero Trust architecture Experience supporting federal government environments Familiarity with RMF, FISMA, and NIST 800-53 requirements Experience integrating network telemetry with SIEM platforms such as Splunk, Sentinel, or similar solutions Experience with SD-WAN technologies Clearance Public Trust (Tier 2) clearance Location Hybrid work environment with occasional onsite support as required.