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1766 - Network Engineer

Sigma DefenseSan DiegoPosted 18 Sept 2026

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About this role

Sigma Defense is seeking a self-directed and highly motivated individual to join our team as Network Engineer to help engage in converging all voice, video, and data communications between ship and shore. The Automated Digital Network System (ADNS) is an Acquisition Category II spiral development program that incorporates and adapts a variety of Commercial-Off-the-Shelf (COTS) and Government-Off-the-Shelf (GOTS) hardware and software.

ADNS is the Tactical Internet Protocol (IP) Routing and Switching system for Wide Area Network IP Services which connect afloat units to the various global shores sites. It provides ship and shore IP connectivity and promotes efficient use of available satellite and line of site communications bandwidth. Equal Opportunity Employer/Veterans/Disabled: Sigma Defense Systems is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

Requirements 5+ years of experience in DoD or other Government Unclassified and Classified Systems/Networks, Cisco Routing and Switching, Network Engineering, Network Testing, and Implementation Planning. Experience designing, deploying, supporting, or managing enterprise LAN/WAN and SD-WAN environments is highly desired. Experience supporting large, multi-site or geographically distributed network environments is preferred.

Experience with Microsoft Windows operating systems and Microsoft Office Suite products. Experience with Cisco and/or Cisco Meraki network environments is desired, including routing and switching, wireless networking, firewalls, VLAN segmentation, site-to-site VPNs, DHCP/DNS integration, QoS, and network security. Experience with Active Directory, Microsoft Exchange/Office 365, Windows Server environments, MPLS, and enterprise IT support is also desired.

Comparable enterprise networking technologies and platforms will be considered. Ability to work well with other Engineering focus groups and personnel ranging from Junior to Chief Network, Systems, or Cyber Engineers. Excellent verbal and written communication skills. Ability to manage and prioritize tasks to ensure optimum productivity. Ability to work with Network related hardware and software. Ability to conduct research on Cisco or other related Network hardware components.

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Ability to conduct testing and regression testing on Government facilities. Knowledge of PC hardware architecture. Strong leadership, interpersonal, and decision-making skills. Ability to effectively communicate both orally and in writing, with managers, supervisors and peers. Ability to work collaboratively, independently, and to take initiative. Ability to quickly grasp and implement technical concepts. Ability to work collaboratively, independently, and to take initiative.

Network Engineering experience with ADNS, CANES, or CaaS is preferred. Must be a U.S. citizen. Candidate Differentiators: Hands-on experience with network infrastructure deployments, including device staging, rack-and-stack installation, PoE configuration, ISP/circuit turn-up and validation, network testing, troubleshooting, and post-deployment support is highly desired. Experience planning or executing network deployments across multiple geographically distributed locations is preferred.

Experience with Cisco Meraki MX security appliances, MS switches, MR wireless access points, or comparable Cisco enterprise networking equipment is beneficial but not required. Education Requirements: Bachelor's degree from an accredited college or university in Computer Science, Information Technology, Information Systems, Engineering, or related field of study. Personnel Clearance Level: Candidate must possess or have the ability to obtain an active Secret security clearance or higher.

C learance may be sponsored for the right candidate. Mandatory Certifications: DoD 8570 IAT Level II - Security+ (or equivalent) and CCNA; CCNP is preferred. Microsoft Certified Systems Engineer (MCSE), current Microsoft role-based certification, or comparable Microsoft systems administration experience is desired. Essential Job Responsibilities (not all-inclusive) Assist with development and modernization of Government systems, sub-systems, and components through engineering integrations.

Assist with development and modernization of Government Networks via Software defined capability or similar engineering integrations. Support improvement of WAN/LAN posture leading architecture research and design in support of current and future Naval Requirements. Provide engineering change support to the In-Service Engineering Activity team via on-site services on equipment/systems to perform Cisco-based troubleshooting, identification of root cause and correction of other system-specific faults and failures.

Participate in numerous Network integration and testing support events within Government test facilities in support of system interoperability. Perform technical document reviews and participate in technical working groups. Configure Cisco C3850 and C9300 series switches. Configurations include Layer-2 and Layer-3 switch configurations. Maintain port security on all network devices and coordinate with local lab system administrators with deployment of new computers, VoIP, dVTC and sVTC devices.

Configure and maintain Palo Alto (PA-850) firewalls. Configurations include network configurations such as V-wire and Layer-3 creation and maintenance of objects, zones, and policy rules. Configure and maintain TACLANE (KG175 series) devices. Configurations include network configuration, peer routes, and keying devices. Liaison to local lab managers and system administrators on the installation of the RDT&E network to include hardware purchase, baseline configuration, local system administration responsibilities and duties to maintain system compliance.

Liaison to local and Chief Engineers on testing and integration plans via Naval Fleet requirements. Salary Range: USD 90,000 - USD 130,000 annually. Benefits Dental and Vision Insurance Medical Insurance to Include HSA, FSA, and DFSA Plans Life and AD&D coverage Employee Assistance Program (EAP) 401(k) Plan with Company Matching Contributions 160 Hours of Paid Time Off (PTO) 12 (Floating) Holidays Educational Assistance Highly Competitive Salary

Source listing: workable_sigmadefense

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