Network Engineer, SME

This 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. Minimum Requirements Bachelor’s degree in network engineering, information systems, or related discipline from an accredited institution. Minimum of 8+ years of senior‑level network engineering experience designing and implementing secure, scalable DoD networks. Technical expertise in: Network architecture, routing protocols, firewall policy, QoS VMware, Microsoft Teams, VoIP/Unified Comms, Windows Server Cloud‑enablement strategies and cross‑domain solutions Proven track record of designing and implementing secure, scalable DoD enterprise networks (classified and unclassified). Advanced technical expertise in VMware, VOIP phones, Microsoft Teams, and Windows Server systems. Expertise with network architecture, firewall policy, routing protocols, QoS, Cloud‑enablement strategies, and cross‑domain solutions. Experience performing Tier 3 O&M support, configuration, and engineering for large‑scale military networks. Deep knowledge of DoD architecture frameworks, RMF, and PACAF‑specific mission demands. Ability to provide: System Design Plan (SDP) to include drawings, rack elevations, and configurations Cable run details (fiber, copper, power, grounding) Site preparation actions (facilities, power, grounding, bonding) Systems Integration Test (SIT) and Systems Acceptance Test (SAT) plans Excellent communication skills (verbal and written). Proven ability to work independently or collaboratively in rapidly changing environments. Proven ability to support senior leaders in a Joint Operations Center with technical expertise. Must have an active Top‑secret clearance. Note: U.S. Citizenship is required to obtain a TS Clearance. Preferred Qualifications Cisco CCIE Enterprise Infrastructure or Security. Cloud Architecture certification (AWS Solutions Architect, DoD Cloud certs). Cisco CCDP or equivalent vendor‑neutral certification. DoD IAT Level III certification in ACTIVE status. Current DoD TS clearance with SCI eligibility. 10+ years of Network Engineering experience with complex network systems. Compensation & Benefits HIRING SALARY RANGE: $125K - $145K (Salary to be determined by the education, experience, knowledge, skills, abilities of the applicant, internal equity, and alignment with market data.) This position includes a competitive benefits package. For more detailed information on our Benefits and what it is like to work for Amentum: please visit our careers site: Compensation Details $125K - $145K The compensation range or hourly rate listed for this position is provided as a good‑faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws. Benefits Overview Health, dental, and vision insurance Paid time off and holidays Retirement benefits (including 401(k) matching) Educational reimbursement Parental leave Employee stock purchase plan Tax‑saving options Disability and life insurance Pet insurance Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara‑O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits. Original Posting 06/15/2026 - Until Filled Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs. Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, and breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low‑income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters. #J-18808-Ljbffr