Network Engineer

Infinity Technology Services LLC

$90K — $120K *
Telecommunications & Hardware
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's Degree in Network Engineering, IT, Cybersecurity or related field plus 4 years of experience, or Graduate Degree with 2 years, or 8 years of experience in lieu of a degree.
  • Active U.S. DoD Top Secret security clearance with the capability to obtain SCI access within 6 months.
  • 6+ years supporting enterprise network infrastructure in a DoD, federal, or similarly regulated environment.
  • Strong hands-on experience with Juniper and Cisco device management from configuration to lifecycle.
  • Experience ensuring and maintaining DISA STIG compliance across network devices.
  • Proven track record in technical training and mentoring, or acting as a subject matter expert (SME).
  • Knowledge of network automation tools and scripting for configuration and deployment.

Responsibilities

  • Design, implement, and maintain enterprise network infrastructure across both classified and unclassified environments.
  • Administer and optimize network deployments for efficiency.
  • Support core routing and switching operations involving protocols like BGP, OSPF, and VLAN.
  • Analyze and resolve complex network incidents impacting mission-critical operations.
  • Plan and execute network upgrades while minimizing operational disruption.
  • Develop network documentation including diagrams, SOPs, and technical guides.
  • Automate various network tasks utilizing scripting and templating tools.

Benefits

  • Comprehensive technical training and mentoring opportunities.
  • Collaboration with cybersecurity and external organizations on vital network changes.
  • Involvement in cutting-edge Zero Trust Architecture initiatives.
  • Flexible after-hours maintenance windows to accommodate necessitated operational support.
  • Potential for travel (up to 10%) to engage directly with operational environments.
Full Job Description
Essential Functions:
  • Design, implement, maintain, and troubleshoot enterprise network infrastructure across classified and unclassified environments.
  • Administer and optimize network deployments.
  • Support routing and switching operations, including BGP, OSPF, VLANs, STP, and enterprise segmentation.
  • Perform advanced root cause analysis and resolution of complex network incidents affecting mission-critical operations.
  • Plan and execute network upgrades, patching, and lifecycle refresh efforts with minimal operational impact.
  • Develop and maintain network diagrams, SOPs, TTPs, implementation plans, and technical documentation.
  • Automate network configuration, compliance, and deployment tasks using scripting and templating tools.
  • Implement and maintain DISA STIG-compliant network configurations across enterprise devices.
  • Support Zero Trust Architecture (ZTA) initiatives through posture assessment, profiling, policy enforcement, and access control.
  • Manage enterprise-scale switch provisioning and configuration standardization efforts.
  • Monitor network health, availability, and performance using enterprise management tools.
  • Provide technical guidance and escalation support to junior engineers and technicians.
  • Coordinate with cybersecurity, systems, COMSEC, and external organizations to support network changes and vulnerability remediation.
  • Deliver technical briefings and status updates to leadership and stakeholders.
  • Support after-hours maintenance windows and on-call response for mission-critical outages, as needed.
  • Up to 10% travel may be required.

Qualifications:
  • Bachelor's Degree in Network Engineering, Information Technology, Cybersecurity, or a related field, and minimum 4 years of prior relevant experience. Graduate Degree and a minimum of 2 years of prior related experience. In lieu of a degree, minimum of 8 years of prior related experience.
  • Active U.S. DoW Top Secret security clearance with the ability to obtain SCI access within 6 months of hire.
  • 6+ years of experience supporting enterprise network infrastructure in a DoD, federal, or similarly regulated environment.
  • Strong hands-on experience configuring, maintaining, troubleshooting, and supporting lifecycle management for Juniper and Cisco network devices.
  • Experience applying and maintaining DISA STIG compliance across network devices.
  • Experience leading technical training, mentoring junior staff, or serving as a team SME.
  • Experience with network automation using scripting, templates, or similar tools.

Preferred Additional Skills:
  • Ability to troubleshoot complex network issues across multi-site or large-scale environments.
  • Active Security+ CE Certification.

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