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F5 Network Engineer

MANTECHStafford, Virginia🇺🇸United StatesPosted Oct 16, 2026

Quick Overview

Seniority
Mid Senior
Employment type
Full Time
Work mode
Hybrid
Location
Stafford, Virginia, United States
AWSAzure

Job Description

hackajob is collaborating with MANTECH to connect them with exceptional professionals for this role.

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.

Minimum Qualifications:

  • 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.

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