Senior Network Tool Engineer

Description Unleash Your Potential

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customer's 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. Our Mission, Vision, and Values guide the way we do business.

Leidos is seeking a Senior Network Tool Engineer to support the Intelligence Sector.

• Install, configure, and maintain Cisco Network Services Orchestrator (NSO) solutions and associated network infrastructure components, ensuring high availability, performance, and reliability.
• Troubleshoot and resolve complex network and service deployment issues, leveraging NSO logs and monitoring tools to perform root cause analysis.
• Integrate NSO with various network devices, external systems, and APIs using protocols like NETCONF, RESTCONF, and JSON-RPC.
• Develop and maintain automation scripts using Python, Java, or other relevant languages to streamline operations and enhance efficiency.
• Perform regular system maintenance, including software upgrades (NED upgrades), patching, security auditing, and configuration backups for network devices.
• Collaborate with network architects, software developers, and operations teams to define requirements and ensure seamless integration of new solutions.
• Create and maintain comprehensive technical documentation related to installations, configurations, and network processes.

• Required Clearance: TS/SCI with specific poly.
• Candidate must have 12 years of experience that can be a combination of work history and education. This equates to a BS degree and 8 - 12 years of prior relevant experience or Masters with 6 - 10 years of prior relevant experience. May possess a Doctorate in technical domain.

• Must be compliant with DoD 8140 Information Assurance Technical (IAT) Level 2.
• Strong knowledge of networking fundamentals and protocols (TCP/IP, BGP, OSPF, MPLS, etc.).
• Strong working knowledge and experience installing, upgrading, and maintaining software in a Linux (RHEL) environment.
• Intermediate scripting skills are required (Ex. Python).
• Effective analytical, problem-solving, and troubleshooting abilities to diagnose and resolve complex technical issues.
• Solid technical communication skills and the ability to work effectively within cross-functional teams.

• Proven experience in network administration or engineering, with hands‑on experience in configuring Cisco and/or Juniper routers and switches.
• Familiarity with YANG data modeling language.
• Experience with network automation and orchestration tools, specifically Cisco Network Services Orchestrator (NSO).

Come break things (in a good way). Then build them smarter.

We're the tech company everyone calls when things get weird. We don't wear capes (they're a safety hazard), but we do solve high‑stakes problems with code, caffeine, and a healthy disregard for "how it's always been done."

Original Posting:
December 19, 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: $ - $

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.

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately…