Senior Network Engineer

Essnova Solutions, Inc.; Washington (Washington County); Hybrid; USD 120,000 - 180,000; Full time

Job summary

Essnova Solutions, Inc. is seeking a Senior Network Engineer to lead design, implementation, and security of enterprise network infrastructure supporting federal operations. The role emphasizes Cisco technologies, Zero Trust, and resilient network services in a federal contractor environment.

Hybrid work with occasional onsite support. The Senior Network Engineer will work cross-functionally with cybersecurity, cloud engineering, and infrastructure teams to modernize networks, harden security,

Qualifications

• Bachelor's degree or equivalent experience in IT, CS, or engineering.
• 8+ years enterprise network engineering experience.
• Expert-level Cisco networking knowledge.
• Knowledge of NIST frameworks and federal security requirements.
• Experience supporting incident response and vulnerability management.
• Ability to obtain Public Trust clearance.

Responsibilities

• Design, implement, and maintain secure enterprise network architectures.
• Lead network modernization and infrastructure improvements.
• Configure routing, switching, VPNs, DNS, and DHCP services.
• Implement Zero Trust segmentation and least-privilege access controls.
• Integrate network telemetry with SIEM and security platforms.
• Support incident response and vulnerability remediation.
• Develop network diagrams, SOPs, and documentation.
• Collaborate with cybersecurity, cloud, and infrastructure teams.
• Provide lifecycle management and technology refresh planning.

Skills

Cisco networking

Zero Trust security

Network architecture & design

VPNs, DNS, DHCP

Public Trust clearance

Incident response support

SIEM integration

Education

Bachelor's degree in IT/CS/Engineering

Tools

Palo Alto

Cisco Firepower

Splunk

SD-WAN

Job description

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 activitiesAbility 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.