Looking for an opportunity to make an impact?
At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. The Leidos National Security Sector (NSS) combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers’ mission to defend against evolving threats around the world.
Your greatest work is ahead!
The Multi-domain Solutions Division (MDS) within the Leidos National Security Sector is seeking a skilled Network Administrator to join a new cyber security program and play a key role in supporting government-critical systems. You will be part of a program that oversees development, integration, delivery, and operations and maintenance of IT managed security services, which encompasses support to monitor the cybersecurity threat and security posture situational awareness for the enterprise. This opportunity is in anticipation of a future contract award!
What you’ll be doing:
- Assist in implementation, security, and maintenance of our enterprise network infrastructure.
- Apply expertise in network architecture, security, automation, and cloud networking to ensure high availability, performance, and security across our IT environments.
- Overlook operations, troubleshoot complex issues, optimize performance, and guide IT teams in adopting best practices.
- Deploy, and maintain enterprise-level LAN, WAN, SD-WAN, and wireless networks.
- Manage and optimize network hardware, including routers, switches, firewalls, load balancers, and VPNs.
- Oversee cloud networking (AWS, Azure, Google Cloud), including hybrid cloud integrations.
- Develop and enforce network segmentation, access control, and zero-trust security models.
- Implement network security best practices, firewall policies, IDS/IPS, and NAC solutions.
- Conduct regular network vulnerability assessments, penetration testing, and risk mitigation.
- Ensure compliance with industry standards (NIST, ISO 27001, PCI-DSS, HIPAA, SOC 2, etc.).
- Collaborate with cybersecurity teams to detect and mitigate network threats.
- Monitor network traffic, bandwidth usage, and performance metrics, identifying and resolving bottlenecks.
- Automate network configurations and management tasks using scripting tools (Python, Ansible, Terraform).
- Optimize VoIP, QoS, and video conferencing solutions for high-performance communication.
- Lead incident response efforts for major network outages, security breaches, or performance issues.
- Troubleshoot complex Layer 2/3 network issues and coordinate resolution with vendors when necessary.
- Maintain disaster recovery and failover strategies to ensure network resilience.
- What does Leidos need from me?
- Active Top Secret/SCI (TS/SCI) with Polygraph security clearance required. Must be U.S. Citizen.
- Bachelor's and 4 to 8 years of prior relevant experience or Master's with 2 to 6 years of prior relevant experience. Experience may be considered in lieu of degree.
Favorable if you have:
- Cisco Certified Network Professional (CCNP) or Cisco Certified Internetwork Expert (CCIE).
- Juniper Networks Certified Internet Professional (JNCIP) or Expert (JNCIE).
- Palo Alto Networks Certified Network Security Engineer (PCNSE).
- AWS Certified Advanced Networking – Specialty.
- Certified Information Systems Security Professional (CISSP) – Networking focus.
Original Posting:March 28, 2025
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:Pay Range $72,150.00 - $130,425.00
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.
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What We Do
We Are Leidos
For 50 years we have been tackling some of the biggest problems that face our nation and our world.
OUR MISSION
Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
Your most important work is ahead.
