F5 Network Engineer
Listed on 2026-11-04
-
IT/Tech
Network Engineer, Cybersecurity, Systems Engineer, Network Security
MANTECH seeks a motivated, career and customer-oriented F5
Network Engineer to join our team in Stafford, VA .
The successful candidate will be responsible for designing, configuring, testing, and implementing robust LAN/WAN solutions that allow enterprise applications to utilize the MCEN De-Militarized Zone (DMZ). The engineer will manage network traffic routing, support daily operations for both on-premises and cloud networks (AWS, Azure) and play a critical part in troubleshooting and resolving network connectivity issues.
Responsibilities include but are not limited to:- Design and implement enterprise networking solutions using Cisco and Juniper hardware.
- Manage and support daily operations of network traffic routing for on-premises and cloud environments.
- Develop, update, and validate all network integration documentation.
- Support troubleshooting activities for network connectivity issues reported by application owners.
- Evaluate and apply DISA Security Technical Implementation Guides (STIGs) to all relevant network components.
- Achieve and maintain all required Information Assurance (IA) certifications and training for privileged access to the MCEN.
- Bachelor’s Degree with at least 4 years of related experience in DoD cloud network constructs in AWS or Azure. An additional 2 years of experience may be substituted in lieu of degree.
- Demonstrated proficiency with Cisco and Juniper network devices (routers, switches).
- A Cisco Certified Network Associate (CCNA) or Juniper Networks Certified Internet Associate for JUNOS (JNCIA-JUNOS) certification is required.
- DoDD 8140/8570 compliant/certified (e.g., current Security+ certification).
- Current experience supporting Marine Corps Enterprise Networks
- F5 Certified Technical Specialist certifications for ASM (Test 303), APM (Test 304), and LTM (Tests 301A/301B).
- An active DoD Secret clearance is required for this position.
- Must be able to remain in a stationary position 50%.
- Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
- Frequently communicates with co-workers, management, and customers, which may involve delivering presentations.
MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
If you need a reasonable accommodation to apply for a position with MANTECH, please email us at and provide your name and contact information.
(If this job is in fact in your jurisdiction, then you may be using a Proxy or VPN to access this site, and to progress further, you should change your connectivity to another mobile device or PC).