Jobs · Information Technology · California

Senior-Level Network Engineer

Seneca Resources · San Diego, CA · 2 wk ago
Information Technology$60–$65/hrContract

Location: San Diego, CA (100% onsite)
Clearance: Active Secret Clearance required
Position Status: Contract-to-Hire
Pay Rate: $60–$65/hr (based on experience)

About the Role

We are seeking a Senior-Level Network Engineer to provide network engineering, integration, testing, troubleshooting, security, and day-to-day operational support for complex physical network environments supporting mission-critical government systems. The ideal candidate will have hands-on experience with enterprise network technologies including HPE Aruba, Palo Alto, OSPF, BGP, IPsec, Aruba ClearPass, 802.1X, NAC, Zero Trust, AWS, and Azure.

Responsibilities

  • Provide engineering and operational support for physical network environments, including network hardware/software installation, configuration, firmware upgrades, STIG compliance, maintenance, and performance optimization.
  • Monitor, analyze, and troubleshoot network performance at both the physical and IP packet levels using enterprise network monitoring and analysis tools such as Zabbix and inMON Traffic Sentinel.
  • Design, configure, maintain, and troubleshoot routers, switches, firewalls, and network distribution infrastructure.
  • Configure and troubleshoot OSPF, BGP, IPsec, VLANs, routing tables, IP addressing, and network segmentation.
  • Establish and maintain connectivity to AWS and Azure cloud environments, including IP space, VLANs, route tables, VPCs, and virtual gateways.
  • Develop and maintain network infrastructure test environments, review test cases, execute testing, analyze results, and document findings.
  • Establish and maintain corrective-action processes to identify, track, and resolve network issues in coordination with internal teams and vendors.
  • Conduct regression testing to validate network corrections, configuration changes, and infrastructure updates.
  • Prototype, install, configure, and maintain network infrastructure supporting routing, distribution, firewall, and boundary-routing functions.
  • Work extensively with HPE Aruba networking and Palo Alto firewalls/security technologies.
  • Implement and manage Network Access Control (NAC) capabilities, including Aruba ClearPass Policy Manager and 802.1X authentication.
  • Support implementation of Zero Trust network architectures, including dynamic segmentation and policy-based network access.
  • Participate in an on-call rotation and respond to critical network outages during evenings, weekends, and holidays. Must be able to report onsite within two hours of notification when required.
  • Maintain network security and configuration standards in accordance with applicable DoD security requirements and STIG guidelines.

Requirements

  • Master’s degree in Computer Science, Information Technology, Engineering, or a related technical field.
  • 10+ years of relevant network engineering experience, including experience working independently on complex network environments.
  • Strong hands-on experience with enterprise networking, routing, switching, network architecture, and troubleshooting.
  • Experience configuring and troubleshooting OSPF and BGP.
  • Experience with IPsec, VLANs, routing, IP addressing, and network segmentation.
  • Experience supporting AWS and/or Azure cloud connectivity and associated networking components.
  • Hands-on experience with HPE Aruba networking technologies.
  • Experience with Palo Alto firewalls and network security infrastructure.
  • Experience with Network Access Control (NAC) and 802.1X authentication.
  • Strong understanding of network security, Zero Trust principles, and dynamic segmentation.
  • Ability to analyze network performance at the packet and infrastructure levels.
  • Strong troubleshooting, analytical, documentation, and communication skills.
  • Ability to work 100% onsite in San Diego, CA.
  • Ability to participate in after-hours/on-call support as required.
  • Active Secret Clearance required.

Qualifications

Candidates must hold one certification from each category below:

  • IAT Level II Security Certification:
    • CompTIA Security+ CE
    • CompTIA CySA+
    • GIAC Security Essentials Certification (GSEC)
    • Security Certified Network Professional (SCNP)
    • Systems Security Certified Practitioner (SSCP)
  • Networking Certification:
    • Cisco Certified Network Associate (CCNA)
    • Cisco Certified Network Professional (CCNP)
    • Cisco Certified Design Professional (CCDP)

Preferred Qualifications

  • Experience with Zabbix and/or inMON Traffic Sentinel.
  • Strong experience with Aruba ClearPass Policy Manager.
  • Experience implementing NAC, 802.1X, Zero Trust, and dynamic segmentation.
  • Additional experience with HPE Aruba switching and wireless technologies.
  • Experience supporting DoD/NIWC, federal, military, or other government network environments.
  • Experience with STIG compliance and secure network configuration.
  • Experience with network performance monitoring, packet analysis, and enterprise network management platforms.

Benefits

  • Competitive pay
  • Comprehensive health, dental, and vision coverage
  • 401(k) retirement plans
  • Dedicated support team

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