Network Engineer 3
About The Position
The Network Engineer 3 supports secure network infrastructure for Department of the Air Force mission systems. The role covers network planning, implementation, maintenance, troubleshooting, performance analysis, security controls, compliance, documentation, and user support. The engineer also assists with network upgrades and technology refreshes, integrates new systems and capabilities, and may provide on-call or after-hours support as mission operations require. This position is part of Warfare Systems, a business group within HII’s Mission Technologies division. It is a full-time, salaried, exempt role requiring an active TS/SCI clearance. Required travel is 0–10%.
Requirements
- Bachelor’s degree in Information Technology, Networking, Cybersecurity, Computer Science, or a related field, or an equivalent combination of education and experience.
- At least 5 years of hands-on experience supporting enterprise or tactical network environments.
- Working knowledge of Layer 2/3 networking concepts, IP routing, VLANs, ACLs, and basic network security.
- Experience configuring and maintaining common network hardware, such as Cisco, Juniper, Brocade, or Aruba.
- Ability to perform network troubleshooting using standard tools and methodologies.
- DoD 8570 IAT Level II certification, such as Security+, CCNA Security, or CYSA+, or ability to obtain it within the required timeframe.
- Active TS/SCI clearance.
Nice To Haves
- Experience supporting DoW, DAF, or other government or mission-critical environments.
- Familiarity with RMF, STIGs, and DoW cybersecurity compliance requirements.
- Experience with network monitoring tools such as SolarWinds, Splunk, or ManageEngine.
- Knowledge of VPNs, firewalls, IDS/IPS, and secure enclave configurations.
- Experience supporting tactical or austere communications platforms.
- Advanced vendor certifications, such as CCNP, JNCIS, or Network+ CE.
- Experience with VoIP, unified communications, or radio/IP integration.
- Strong documentation and change-management discipline.
Responsibilities
- Support planning, implementation, maintenance, and troubleshooting of secure network infrastructures supporting Department of the Air Force mission systems.
- Configure, monitor, and maintain routers, switches, firewalls, VPNs, and other network devices.
- Perform network performance analysis, fault isolation, and root-cause investigations to ensure high availability and reliability.
- Assist with network upgrades, technology refreshes, and integration of new systems or capabilities.
- Implement and maintain network security controls aligned with DoW and DAF cybersecurity policies.
- Support accreditation, compliance, and documentation activities under RMF and related processes.
- Maintain network diagrams, configuration baselines, SOPs, and change records.
- Provide user support and technical guidance to on-site personnel and mission operators.
- Participate in on-call or after-hours support as required by mission operations.
Benefits
- Medical, dental, and vision plan choices
- Wellness resources
- Employee assistance programs
- 401(k) savings plan options
- Financial planning tools
- Life insurance
- Employee discounts
- Paid holidays
- Paid time off
- Tuition reimbursement
- Early childhood and post-secondary education scholarships
- Competitive benefits
- Educational and training programs for continual career growth
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
