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# F5 Network Engineer

- **Company:** Mantech International Corporation
- **Location:** Stafford, VA, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, Microsoft Azure, Computer Networks, Networking Hardware, Junos, Wide Area Networks, Network Routers, Cloud-native Network Functions (CNF), Computer Networking Systems, Enterprise Software Applications, Cloud Platform System, Connectivity Problems, Juniper, Enterprise Integration, Cisco
- **Published:** October 14, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9238230/f5-network-engineer

## About the Role

MANTECH seeks a motivated, career and customer-oriented F5 Network Engineer to join our team in Stafford, VA., * 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).

Preferred Qualifications:

 * Current experience supporting Marine Corps Enterprise Networks
 * F5 Certified Technical Specialist certifications for ASM (Test 303), APM (Test 304), and LTM (Tests 301A/301B).

Clearance Requirements:

 * An active DoD Secret clearance is required for this position.

Physical Requirements:

 * 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.

## Description

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., * 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.