The Network Engineer will provide advanced technical support for the architecture, design, and implementation of enterprise-level unclassified and classified network infrastructure at HQ PACAF. This position focuses on hands-on engineering support, Tier 3 diagnostics, and optimizing the performance of a mission-critical communications environment in accordance with DoD and PACAF. Essential Duties and Responsibilities: Provide Tier 3 network engineering support and troubleshooting for O&M operations across PACAF networks (NIPR/SIPR/Coalition). Support SDP development in coordination with the lead Network Architect and A6 stakeholders. Support implementation and sustainment of routing, switching, segmentation, firewalls, and QoS configurations. Conduct change management planning, including technical implementation procedures and risk assessments. Execute network upgrades and integration of hardware/software solutions. Perform diagnostics for complex network service issues. Ensure RMF-aligned security integration across all changes. Coordinate with PACAF/A6 and stakeholders for validation. Survey and assess facilities for potential upgrades. Other duties as assigned.