Senior Network Engineer

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

None

Clearance Level Must Be Able to Obtain:

None

Public Trust/Other Required:

Other

Job Family:

Network Engineering

Job Qualifications:

Skills:

Enterprise Network, Network Administration, Network Engineering, System Administration

Certifications:

None

Experience:

7 + years of related experience

US Citizenship Required:

Yes

Job Description:

Network Engineer/Specialist

Transform technology into opportunity as a Network Engineer with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you’ll be at the forefront of innovation and play a meaningful part in improving how agencies operate.

At GDIT, people are our differentiator. As a Network Engineer you will help ensure today is safe and tomorrow is smarter. Our work depends on Network Engineer joining our team to perform on client site as Infrastructure Operations Lead, a key position responsible for leading the IT Infrastructure Operations contractor team that provides operations and maintenance to the customer network and systems.  The Infrastructure Operations lead is responsible for maintaining and operating the hybrid infrastructure, that includes a combination of on premise and cloud-based infrastructure. Infrastructure operations shall support and maintain the Local Area Network (LAN), Wide Area Network (WAN), Wireless Local Area Network (WLAN) and data center infrastructure to ensure an effective and efficient IT environment for its customers.

HOW A NETWORK ENGINEER WILL MAKE AN IMPACT
•The Senior Network Engineer is a hybrid operations and engineering role responsible for both the day-to-day administration of network infrastructure and the design and execution of enterprise network modernization efforts. This position plays a critical role in both maintaining secure, high-performance connectivity and leading infrastructure projects such as core network redesign, cloud integration, and security architecture improvements. The ideal candidate combines deep technical skills with the ability to lead, plan, and execute at an engineering level.
•Key Responsibilities
•    Hybrid Engineering and Administration: Serve in a dual-capacity role that balances high-level network design and architecture responsibilities with day-to-day operational support and device configuration across enterprise environments.
•    Network Infrastructure Management: Administer and maintain a multi-site enterprise network, including the configuration and lifecycle management of routers, switches, firewalls, VPNs, wireless infrastructure, and load balancing technologies.
•    Architecture and Design: Develop scalable and resilient network architectures that support high availability, fault tolerance, and future growth, with an emphasis on alignment with DOE enterprise IT strategy and security policies.
•    Routing and Protocol Engineering: Engineer and support complex routing strategies involving protocols such as EIGRP, OSPF, and BGP; ensure optimal route redistribution, convergence, and path selection across hybrid connectivity models including DMVPN and MPLS.
•    Firewall and Security Integration: Implement and manage next-generation firewall platforms (e.g., Palo Alto), including high availability configuration, SSL decryption, policy optimization, IDS/IPS system configurations, and integration with cloud and on-premises security architectures.
•    Cloud and Hybrid Networking: Design, deploy, and manage hybrid network topologies within Microsoft Azure, including Virtual Networks (VNets), ExpressRoute, peering, NAT Gateway, and firewall solutions to ensure secure and performant cross-premise connectivity.
•    Network Access Control (NAC): Support the implementation and management of NAC solutions such as Cisco ISE, including potential integration with Microsoft Intune to enforce endpoint compliance and identity-based access control.
•    Project Leadership: Lead and execute infrastructure modernization initiatives, including the planning, implementation, and validation of new networking technologies or the re-architecture of existing environments.
•    Monitoring and Performance Optimization: Leverage network performance tools such as Catalyst Center, SolarWinds and Azure Network Watcher to monitor availability, perform root cause analysis, and implement performance enhancements.
•    Documentation and Standards Compliance: Maintain accurate technical documentation including topology diagrams, configuration baselines, IP address