Leidos
From Leidos's careers page
Status: listed on the employer's own careers page when we last checked (daily). Confirm on their site before applying.
Leidos has an opening for Sr. Network Design Engineer – Core (WAN) to support our government customers’ global enterprise networks. Network Architecture provides solutions for modernizing the network components while supporting service delivery for customer requirements in a mission-focused operational enterprise. Additionally, the candidate must have experience with hands-on router engineering and/or operation.
Responsibility for the Multiprotocol Label Switching (MPLS) Wide Area Network (WAN) overall architecture
Developing MPLS WAN services solution
Performing lab equipment evaluation, integration, and testing
Assisting with the security accreditation process
Developing and maintaining relevant technical documentation.
On as-needed basis, the engineer will also be responsible for supporting Tier-4 production troubleshooting and developing pro-active network analysis solution for the operations team.
Required Clearance at the time of application: TS SCI with active Polygraph
Candidate must have 16 years of experience that can be a combination of work history and education. This equates to a Doctorate and 8 years, master’s and 10 years, bachelor’s and 12 years, associates and 14 years or HS diploma and 16 years.
Required qualifications include the following: Must be compliant with DoD 8140 Information Assurance Technical (IAT) Level 2.
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.
October 14, 2026
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 $92,300.00 - $166,850.00
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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