Senior Network Tool Engineer

Unleash Your PotentialLeidos is seeking a Senior Network Tool Engineer to support the Digital Modernization sector. 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. If this sounds like an environment where you can thrive, keep reading! The job duties are as follows: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.Standard Requirements: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.Required qualifications include the following: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.Preferred Qualifications: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).If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.Original Posting:December 19, 2025For 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 $107,900.00 - $195,050.00The 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.SummaryLocation: Chantilly, VAType: Full time