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Senior Network Engineer

Job in Springfield, Fairfax County, Virginia, 22161, USA
Listing for: M9 Solutions LLC.
Full Time position
Listed on 2026-10-16
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, Network Engineer, Network Security
Salary/Wage Range or Industry Benchmark: 60000 - 180000 USD Yearly USD 60000.00 180000.00 YEAR
Job Description & How to Apply Below

M9 Solutions is dedicated to providing IT services and solutions to the Federal Government by mobilizing the right people, skills, clearance levels, and technologies to help organizations that desire improved performance and modern, sustainable change. M9 has provided quality IT services and support to more than 30 Federal Agencies and multiple commercial customers nationwide. Our capabilities include IT Talent Solutions, Data Delivery & Analytics, Cyber Security, Cloud Migration, Applications and Infrastructure, Software Development, and Finance & Accounting.

M9 Solutions is seeking a Senior Network Engineer to work on-site in support of a government contract for a client located in Springfield, VA
. An active Top Secret clearance is required.

Responsibilities
  • Supports the network infrastructure, performs all routine maintenance activities, provides guidance on upgrades and system recapitalization, and performs availability/capacity management.
  • Oversees High Speed Guard Cross Domain solution that supports the transfer of data between multiple classification domains.
  • Supports all documentation to effectively capture the configuration baseline.
  • Designs and supports system recapitalization plans to account for capacity growth and changes as directed by the customer.
  • Serves as the subject matter expert on all network infrastructure.
  • Installs, configures, and maintains equipment including Cisco network and firewall gear (Cisco 2900, 4500, 9300, 9400, 6800, Nexus 9000, Cisco Firepower, and ASA).
  • Builds firewall policy and optimized rule sets for improved efficiency and threat prevention.
  • Deploys new network configuration to meet NIST/FISMA/STIG compliance requirements.
  • Supports ATO reviews and audits.
Required

Skills and Qualifications
  • Top Secret security clearance.
  • Bachelor's degree and 12-15 years of prior relevant experience. Additional education and experience may be considered in lieu of a degree.
  • Cisco Certified Network Professional (CCNP) certification.
  • Experience with engineering, deployment, and operations of LAN and WAN switches and firewalls, ensuring seamless integration into existing network infrastructure.
  • Working knowledge of defense-in-depth principles, network/HW/SW security architecture, network topology, IT device integrity, and common security elements.
  • Experience with and proven methods for managing the information security incident lifecycle, including incident response, mitigation, post-action reporting, and mapping a path forward.
  • Network management experience with Solar Winds, Whats Up Gold, NetQoS, or Net Brain.
  • Cross-platform familiarity and experience with VMware, Linux, Microsoft Server, and AD.
  • Top Secret clearance with the ability to obtain a government Entry on Duty (EOD) suitability determination.
Preferred

Skills and Qualifications
  • Master's degree from an accredited college or university in IT Management, Engineering, or a related field.
  • Proven experience (10+ years) in IT service delivery management.
  • Experience with User Activity Monitoring products and platforms.
  • Experience with Everfox High Speed Guard Platform.
  • Experience with Cisco, Juniper LAN/WAN network infrastructure.
  • Experience with Palo Alto Firewalls.
  • Certified Information Systems Security Professional (CISSP).
  • Cisco Certified Network Professional (CCNP) - Security.
  • Palo Alto Networks Accredited Configuration Engineer (ACE) - PAN-OS 7.0 Version.
Full-Time Employee Compensation
  • M9 Solutions' pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include, but are not limited to, responsibilities of the position, education, experience, knowledge, skills, abilities, as well as internal equity, location, alignment with market…
Position Requirements
10+ Years work experience
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