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1560 - Senior Network Engineer (SIL)

Sigma Defense is seeking a self-directed and highly motivated Senior Network Engineer (SIL) to join our team! The Senior Network Engineer will be responsible for overseeing the efforts of developing, engineering, and testing network configurations, systems-monitoring, routine preventative maintenance, and site upgrades. They will coordinate and facilitate the engineering efforts to configure, manage, and evaluate multi-protocol network elements for effective end-to-end communications.      

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.

  • 15+ years of relevant experience.
  • Ability to conduct in-depth log analysis and root-cause isolation.
  • CCNP is required.
  • Expert proficiency in layer 2 switching and layer 3 routing; designing of complex routing and switching schemes to support changing environments.
  • Expert understanding of, and hands on experience with Cisco IOS, Cisco Firewalls and networking technologies.
  • Expert proficiency in EIGRP,OSPF, STP, VTP, ACLs, and Layer 3 tunnels and understands how to monitor network devices to perform fault and root cause analysis.
  • Experience with supporting IP services to connect to NIPRNET/SIPRNET (IPv4, VPN, IPv6, Multicast, BGP, etc.).
  • Ability to analyze and evaluate networks, identify issues, and provide solutions.
  • Experience with security documentation and accreditation life cycles is preferred.
  • Expert understanding and knowledge of BGP is preferred.
  • At least 10 years of experience in DoD or other Government Unclassified and Classified Systems/Networks, Cisco Routing and Switching, Network Engineering, Network Testing, and Implementation Planning.
  • Ability to conduct research on Cisco or other related Network hardware components and develop innovated solutions based on requirements.
  • Ability to conduct testing and regression testing in Government facilities.
  • Knowledge of Microsoft Windows operating systems, Microsoft Office Suite Products, and PC hardware architecture.
  • Strong written and verbal communication skills.
  • Excellent interpersonal abilities with a focus on teamwork and customer service.
  • Ability to multi-task effectively, prioritize, and execute against multiple priorities.
  • Ability to work collaboratively, independently, and to take initiative.
  • Ability to quickly grasp and implement technical concepts.
  • Ability to work well with other Engineering focus groups and personnel ranging from Junior to, Sr. Network, Systems, or Cyber Engineers including C2ISR-T Systems Engineer and government leads.
  • Must be a U.S. Citizen.

Personnel Clearance Level:

  • Candidate must possess or have the ability to obtain an active TS/SCI security clearance or higher.
  • Clearance will be sponsored for the right candidate.

Education Requirements:

  • Bachelor's degree from an accredited college or university in Information Systems or other related field of study.

Essential Job Duties (not all-inclusive)

  • Manage SIL projects and timelines.
  • Support AS-Lead on all aspects of operational network issues.
  • Review and follow processes for all CM related documentation submitted under the SIL: ECR, DR, Test plans, RTS, etc.
  • Expert Knowledge on Data Resiliency: Redundancy Factor and High availability.
  • Monitor and suggest improvements to network performance, capacity, scalability, and security.
  • Create design documents and diagrams to support the system design.
  • Document all build and configuration processes.
  • Create, maintain, and update documentation including VDD, baselines, ICDs, diagrams, and other related materials.

Salary Range: $110,000 - $135,000 annually.

  • 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

Average salary estimate

$122500 / YEARLY (est.)
min
max
$110000K
$135000K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

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sigma defense systems llc is a leading technology company serving the department of defense (dod) providing systems and services for intelligence surveillance and reconnaissance since 2006. the company’s software-focused approach to tactical comm...

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Full-time, onsite
DATE POSTED
August 26, 2025
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