Network Administrator

Leidos Holding$73K — $132K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in IT, Engineering, or related field (4+ or 8+ years experience, or Master's with 2+ or 6+ years).
  • Active Top Secret security clearance with SCI eligibility capability.
  • DoD 8140 compliant certification such as CompTIA Network+, Security+, or Cisco CCNA.
  • 3+ years experience with Cisco networking equipment administration and maintenance.
  • 3+ years experience in enterprise LAN/WAN environments, including remote networks.

Responsibilities

  • Administer and secure Cisco-based network infrastructure.
  • Monitor, troubleshoot, and ensure performance of routers, switches, and firewalls.
  • Support operational and RDT&E network environments.
  • Perform system updates, patching, and maintain network documentation.
  • Monitor network performance and quickly resolve outages.
  • Ensure compliance with cybersecurity regulations and standards.
  • Implement network security measures and monitor device security.

Benefits

  • Collaborative teamwork environment.
  • Support for mission-critical U.S. Navy operations.
  • Opportunities for technology refresh and infrastructure upgrades.
  • Potential for professional development and certifications.
  • Engagement in advanced undersea capabilities research.
Full Job Description
Network Administrator

Location: Keyport, WA (On site)

Leidos is seeking a Network Administrator to join our team supporting the Naval Undersea Warfare Center (NUWC) Keyport. In this role, you'll help maintain and secure the network infrastructure that supports the Unmanned Underwater Vehicle Operations Center (UUVOC), contributing to mission critical systems that advance the U.S. Navy's undersea capabilities.

You'll work alongside a collaborative technical team to ensure reliable, secure, and high performing network operations while supporting both operational and research environments.

This opportunity is open to candidates with varying levels of experience. The position level and compensation will be based on the selected candidate's qualifications.

Program Timing: This position supports an upcoming proposal opportunity with an anticipated September start.

What You'll Do

As a Network Administrator, you will:
  • Administer, maintain, and secure Cisco based network infrastructure supporting mission operations.
  • Configure, monitor, and troubleshoot routers, switches, firewalls, and other network devices to ensure maximum availability and performance.
  • Support both operational and Research, Development, Test, and Evaluation (RDT&E) network environments.
  • Perform system updates, patching, and configuration changes while maintaining accurate network documentation and diagrams.
  • Monitor network performance, identify issues, and quickly resolve outages to minimize operational impact.
  • Maintain compliance with DISA STIGs, Security Requirements Guides, and Navy cybersecurity requirements.
  • Support network security by implementing approved hardening standards and monitoring the security posture of network devices.
  • Assist with capacity planning, technology refresh initiatives, and infrastructure upgrades.
  • Provide technical input for hardware replacement and procurement efforts.


Basic Qualifications
  • Bachelor's degree in Information Technology, Engineering, or a related field with 4+ or 8+ years of relevant experience, or a Master's degree with 2+ or 6+ years of experience. Additional relevant experience may be considered in lieu of a degree.
  • Active Top Secret security clearance with the ability to obtain and maintain SCI eligibility.
  • Current DoD 8140 compliant certification such as CompTIA Network+, Security+, or Cisco CCNA.
  • Three or more years of experience administering and maintaining Cisco networking equipment.
  • Three or more years of experience supporting enterprise LAN/WAN environments, including geographically dispersed networks.
  • Experience implementing secure network configurations and cybersecurity best practices.


Preferred Qualifications

One or more of the following certifications is a plus:
  • Cisco Certified Network Professional (CCNP)
  • CSA Certificate of Cloud Security Knowledge (CCSK)
  • CompTIA Cloud+
  • ISC2 Systems Security Certified Practitioner (SSCP)


AMSOPP1

Original Posting:
July 29, 2026

Pay Range:
Pay Range $73,450.00 - $132,775.00

The Leidos pay range for this job level 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 job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos Holding

Leidos Holding Careers

Joining Leidos Holding presents an unparalleled opportunity to advance one's career with a leader in innovation and technology. The company offers a plethora of job opportunities aimed at fostering professional growth and development in a diverse and inclusive environment.

Explore Career Opportunities

Leidos Holding is actively seeking skilled professionals who are passionate about leveraging their expertise to drive innovation and leadership in their fields. With a variety of open positions, Leidos Holding provides a platform for individuals to challenge themselves in a dynamic work environment.

Innovation and Professional Growth

At Leidos Holding, innovation is at the core of everything they do. Employees are encouraged to think creatively and push boundaries. The company supports this drive for innovation through comprehensive professional development and diversity training programs that are designed to enhance skills and foster leadership.

Commitment to Diversity and Inclusion

Leidos Holding is committed to creating a workplace where diversity is not only recognized but celebrated. With a culture that values and promotes diversity, Leidos Holding ensures that all team members have the opportunity to contribute, learn, and grow.

Internship Programs

For those starting their career, Leidos Holding offers internship programs that provide a robust foundation in the industry. Internships are a great way to develop essential skills, gain valuable work experience, and build professional networks.

Benefits and Culture

Employees at Leidos Holding enjoy a range of benefits designed to support their professional and personal lives. The company culture is built on a foundation of respect and integrity, providing a supportive and collaborative environment where every team member is valued.

Join the Team

Leidos Holding is hiring! Explore job opportunities that match your skills and interests. Leidos Holding looks for driven, curious, and innovative individuals to join their team. Positions are available across various disciplines and experience levels.

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Prepare for Your Interview

To prepare for an interview at Leidos Holding, candidates should familiarize themselves with the company's missions and values, update their resumes, and be ready to discuss how their background and skills align with the position they are applying for.

Networking and Career Advancement

Leidos Holding encourages its employees to engage in networking within the company to discover new opportunities for career advancement. The leadership team at Leidos Holding is dedicated to supporting employees in their career paths with ample opportunities for networking and growth.

Explore Leidos Holding Jobs and Careers

Discover the exciting career opportunities at Leidos Holding today. With a commitment to employee growth, innovation, and diversity, Leidos Holding is the perfect place to advance your career. Check out the latest job listings and find your perfect fit at Leidos Holding.

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