Senior Network Design Engineer – MPLS & WAN (TS/SCI)

Probity; Chantilly (VA); On-site; USD 130,000 - 190,000; Full time

Job summary

Probity is seeking a Design Engineer (Access) to support WAN and LAN networks, designing and upgrading architectures, and providing expert-level guidance to the architecture team. You will ensure secure designs aligned with DISA STIGs and work toward ATO for new devices and capabilities.

The role requires deep knowledge of MPLS, QoS configuration, and complex network analysis to predict and resolve issues. An active Top Secret/SCI clearance with CI polygraph is mandatory, and the position is

Qualifications

• Must have 16 years of combined experience or equivalent.
• DoD 8140 IAT Level 2 compliance required.
• Juniper certifications: JNCIA, JNCIP, JNCIE.
• Experience with MPLS, WAN/LAN design and security considerations.

Responsibilities

• Design and improve MPLS network architecture and document it.
• Develop secure network designs aligned with STIGs and obtain ATO.
• Evaluate lab equipment, software, and network services; integrate with NMS.
• Evaluate new network technologies and services.
• Document designs with diagrams, BOMs, cabling sheets, configurations.
• Provide SME support to Operations for fault isolation and resolution.
• Configure QoS and traffic optimization.
• Support Tier-4 production troubleshooting and proactive network analysis.
• Use network analysis tools to identify and predict problems and conduct post-mortem analysis.

Job description

Probity is seeking a Design Engineer (Access) to support WAN and LAN networks, designing and upgrading architectures, and providing expert-level guidance to the architecture team. You will ensure secure designs aligned with DISA STIGs and work toward ATO for new devices and capabilities.

The role requires deep knowledge of MPLS, QoS configuration, and complex network analysis to predict and resolve issues. An active Top Secret/SCI clearance with CI polygraph is mandatory, and the position is