Tier II Network Specialist

NexGen Data Systems is seeking a Tier 2 Network Specialist. The Tier 2 Network Specialist is responsible for the advanced operational support, management, and troubleshooting of the enterprise network infrastructure, with a specific focus on transport services (e.g., MPLS, VPLS, Carrier Ethernet) and the Software-Defined Wide Area Network (SD-WAN) environment. This role serves as a critical escalation point for the Tier 1 help desk, handling complex incidents, performing planned network changes, and ensuring the reliability, availability, and performance of the enterprise network. The specialist will work closely with Tier 3 engineering teams to resolve persistent issues and contribute to the overall stability and optimization of the network.

Roles & Responsibilities:

• Provide Tier 2 operational support for the enterprise network, serving as the primary escalation point for unresolved incidents from Tier 1 related to transport and SD-WAN services
• Perform advanced troubleshooting and fault isolation to resolve network outages and performance degradation issues, and document all actions taken in the government-provided ticketing system
• Manage, configure, and maintain the SD-WAN environment, including implementing application-aware routing policies, traffic shaping rules, and security policies as directed by government personnel
• Act as the technical liaison with telecommunications carriers and service providers to report and resolve transport circuit issues, including coordinating dispatched technicians and testing
• Utilize network monitoring tools to proactively identify, analyze, and report on network performance, availability, and utilization trends for all WAN and SD-WAN links
• Implement, and verify approved network configuration changes, including router/switch configurations, firewall rule modifications, and SD-WAN policy adjustments, in accordance with established change management procedures
• Maintain accurate and up-to-date documentation of the network infrastructure, including network diagrams, device configurations, and circuit information
• Support the Tier 3 engineering team by gathering diagnostic data, performing tests, and assisting in the resolution of complex or persistent network problems

Other Duties: Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.