Job Description

Job Description

Description

The Senior Network Engineer provides technical leadership and advanced network engineering expertise for enterprise environments. This role is responsible for the design, implementation, maintenance, and modernization of secure, scalable network infrastructures supporting mission-critical operations.

You’ll lead network operations, drive modernization initiatives, and ensure performance, availability, and security across enterprise LAN/WAN, data center, and cloud environments. The ideal candidate has broad technical experience, excellent communication skills, and a proven record of success in large-scale network operations.

Location: This position is required to be onsite on a hybrid schedule, the work schedule is typically 4x10. You will be required to be onsite 75% of the time.

Key Responsibilities:

• Lead network design, implementation, and lifecycle management activities
• Oversee daily network operations and ensure high availability
• Evaluate and integrate emerging technologies to modernize enterprise networks
• Manage network infrastructure projects and communicate technical direction to stakeholders
• Develop documentation, metrics, and reports to ensure compliance and performance
• Ensure all network systems meet organizational security and compliance requirements
• Mentor junior engineers and provide Tier 3/4 network support

Required Qualifications:

• Bachelor’s degree in IT or related field and 10+ years of experience in network engineering (or 14+ years without degree)
• Proven expertise in enterprise network architecture and operations
• Experience leading teams in 24x7 operational environments
• Strong knowledge of Cisco, Juniper, Palo Alto, or similar network platforms
• Hands-on experience with routing, switching, SD-WAN, VPN, and wireless technologies
• Excellent communication and project management skills
• US Citizenship
• Ability to obtain DOE Q security clearance.

Preferred:

• Certifications: CCNP, CCIE, JNCIP, CISSP, Network+
• Experience with cloud networking (AWS, Azure)and network management tools (SolarWinds, ServiceNow, NetBrain)
• Familiarity with Zero Trust and network automation

We’re not looking for perfectly polished resumes or perfect fits. We’re looking for people who break limits, ask hard questions, and don’t wait to be told what’s next. At Leidos, we’re not following the roadmap — we’re redrawing it. 

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.

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

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 $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at -benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [email protected].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

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