Senior Network Administrator

General information

Requisition # R67204 Locations USA-FL-Doral Posting Date 04/20/2026 Security Clearance Required Secret Remote Type Onsite Time Type Full time

Description & Requirements

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!

MANTECH seeks a motivated, career and customer-oriented Senior Network Administrator to join our team in Doral, FL.

Responsibilities include but are not limited to:

• Responsible for the day-to-day operation and maintenance of the network infrastructure. This includes servers, routers, switches, and firewalls, ensuring optimal performance and reliability.
• Configures, monitors, and troubleshoots network devices to maintain seamless connectivity and address emerging issues.
• Implements and maintains essential network security measures, performs routine backups and disaster recovery procedures, and resolves network bottlenecks.
• Installs and configures network hardware and software. They also maintain comprehensive network documentation and provide timely technical support to end users.
• Stays current with emerging network technologies and trends, actively pursuing professional development opportunities. The Network Administrator receives guidance and direction from more senior staff.

Minimum Qualifications:

• BA/BS in field necessary to assume Network Administrator duties or 4 years of additional experience in lieu of a degree.
  • High School diploma plus 4 years of additional experience, or an Associate’s degree plus 2 years of additional experience, may substitute for a Bachelor’s degree.
  • A relevant Master’s degree may count for 2 years of experience; a relevant PhD may count for 4 years.
• 8+ years of experience with 5+ years of relevant Network Administrator experience.
• Experience with cloud platforms like AWS, Azure, or Google Cloud and their networking components.
• Knowledge of network security best practices, intrusion detection/prevention systems, and firewall management.
• Familiarity with network monitoring tools and techniques for performance optimization and troubleshooting.  Proficiency in scripting languages like Python or Bash for automating network tasks.
• DoD 8570.01-M IAT Level II certification, CompTIA Network+, or Cisco Certified Network Associate (CCNA) certifications.

Preferred Qualifications:

• Experience with military/diplomatic operations working within a J-6/G-6/S-6 Directorate or with Special Operations Forces (SOF) or the Department of State (DoS), leading and performing cybersecurity risk assessments for and across multiple commands, agencies, and regionally distributed locations in a Security Operations Center (SOC).
• ITIL Foundation certificate, Cisco Certified Network Professional (CCNP), Microsoft Certified Azure Administrator–Associate, and AWS Certified Solutions Architect–Associate certifications.
• Experience at a DoD Combatant Command (e.g., SOUTHCOM, NORTHCOM, CENTCOM, CYBERCOM, INDOPACOM, EUCOM, AFRICOM, STRATCOM, TRANSCOM, SOCOM, SPACECOM) or a component is desired.

Clearance Requirements:

• Must have a current/active Secret clearance.
• Must be eligible to obtain and maintain a TS/SCI Clearance.

Physical Requirements:

• Must be able to remain in stationary position for up to 50% of the time.
• Must be able to deliver clear and effective communication verbally and via email, phone, and virtual communication platforms to interface with co-workers and customers.
• Must be able to occasionally move about inside an office environment to access file cabinets, office machinery, and communicate with co-workers.

MANTECH 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 careers@mantech.com and provide your name and contact information.