Senior Network Engineer T4

Koniag Government Services•Washington, DC

2d•Onsite

About The Position

Koniag IT Systems, LLC a Koniag Government Services company, is seeking a Senior Network Engineer T4 to support KITS and our government customer Washington, DC. This position requires the candidate to be able to obtain a Public Trust. The Senior Network Engineer T4 provides expert-level network engineering support in CLIENT's enterprise IT environment. Working under the direction of the Network Engineer T4 (Lead), this individual independently handles complex network engineering tasks, serves as a senior escalation resource within the network team, and contributes to the design, integration, and operations of CLIENT's enterprise network infrastructure. This role requires deep technical expertise, the ability to work autonomously on complex problems, and the capacity to serve as a qualified backup to the Network Engineer T4 (Lead) when needed.

Requirements

Minimum 6–8 years of hands-on enterprise network engineering experience
Demonstrated experience in a Federal or private-sector enterprise environment of comparable scale, complexity, and security posture
Proven ability to independently resolve complex, cross-domain network problems at the enterprise level
Experience supporting hybrid on-premises and cloud network environments
Experience executing enterprise network changes in accordance with formal change management processes
Ability to obtain a Public Trust
Advanced proficiency in: Enterprise LAN/WAN architecture and operations, Routing protocols (BGP, OSPF, EIGRP), Switching technologies (VLANs, STP, port aggregation), Wireless enterprise networking, SD-WAN design and operations, Network security fabric and firewall management
Strong working knowledge of: AWS and Azure cloud networking, Zero Trust Network Architecture, Network monitoring and event management tools, ITSM platforms (e.g., ServiceNow), Network automation tools and scripting
Cisco Certified Network Professional (CCNP) – Enterprise or Security (required minimum)
Must meet or exceed the expertise and certification expectations outlined in Section B.2.10.2 of the contract — this standard applies to 100% of Tier 3/Tier 4 positions
Must operate autonomously, diagnosing, deciding, and resolving complex network issues within delegated authority without escalation to government personnel for subject-matter knowledge
Must maintain on-call availability outside core business hours to support escalation and coverage continuity
Any replacement personnel must meet or exceed the qualifications of the incumbent with no degradation to performance, coverage, or expertise
Must support 100% coverage continuity objectives, including serving as a qualified backup to the Network Engineer T4 (Lead) as needed

Nice To Haves

Cisco Certified Internetwork Expert (CCIE) – Enterprise Infrastructure or Security
AWS Certified Advanced Networking – Specialty
Microsoft Azure Network Engineer Associate (AZ-700)
CompTIA Security+ (or equivalent)

Responsibilities

Provide Tier 4 network engineering support across CLIENT's enterprise environment, including LAN/WAN, routing, switching, wireless, SD-WAN, and network security fabric
Independently diagnose and resolve complex, cross-domain network incidents and problems without requiring escalation to government personnel
Execute enterprise network changes and integrations in accordance with ITIL 4 change management practices
Support the Network Engineer T4 (Lead) in planning and executing complex network projects and integrations
Contribute to 24x7 NOC operations through on-call availability and documented escalation procedures
Ensure all network work aligns with FISMA, NIST SP 800-53, and Zero Trust Architecture principles (NIST SP 800-207, OMB M-22-09)
Apply least-privilege and separation-of-duties principles in all network engineering activities
Support FedRAMP compliance for cloud-connected network components
Adhere to CLIENT cybersecurity policies and procedures at all times
Support integration and operations of on-premises and cloud network infrastructure across AWS commercial, AWS GovCloud, Microsoft Azure Government, and Microsoft 365 environments
Assist in SD-WAN operations and optimization across CLIENT's geographically distributed enterprise
Collaborate with infrastructure, platform, and cloud teams to ensure reliable connectivity and performance
Maintain and update network documentation, diagrams, and configurations in the ITSM platform and knowledge base
Develop and maintain standard operating procedures for network tasks and escalation paths
Support cross-training efforts to ensure coverage continuity and team depth
Contribute to after-action reviews and Sprint Retrospectives with actionable improvement recommendations