Senior Network Engineer

Leidos has a new and exciting opportunity for a Senior Network Engineer in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA).  Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management.

At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more.  Join us and make a difference in National Security!  

Job Summary:

Are you a network-savvy problem solver who thrives in secure, high-stakes environments? We’re looking for a Network Engineer to help design, build, and fine-tune the backbone of our mission-critical systems. If you’re passionate about performance, security, and seamless connectivity, this is your chance to make a real impact.

Primary Responsibilities

• Architect and deploy secure, high-performance network solutions
• Keep our LANs running smoothly with hands-on administration and troubleshooting
• Monitor and optimize dataflow to reduce latency and boost throughput
• Capture and analyze network performance data to drive improvements
• Configure and integrate front-end and back-end systems for seamless communication
• Collaborate on mission-driven network designs and architecture
• Translate performance metrics into actionable system requirements

Basic Qualifications

• Master’s degree in Computer Science, Information Assurance, Information Security Systems Engineering, or a related field from an accredited institution, plus 10 years of professional experience in Network Engineering support and training.
• OR Bachelor’s degree in Systems Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or a related field, plus 12 years of relevant experience.
• OR No degree, but 16 years of relevant Network Engineering experience, including a recognized industry certification such as:
• Required Certification: Must hold an Information Assurance Technical (IAT) Level I certification.
• Clearance Requirement – Active TS/SCI with polygraph
• Juniper Certification Tracks (e.g., Automation & DevOps, Cloud, Data Center, Design, Enterprise Routing & Switching, Junos Security, Service Provider Routing & Switching)
• Cisco Certified Network Associate (CCNA)

• Arista Configuration Essentials

Desired Qualifications:

• Experience in with IC/mission-critical environments
• Familiarity with enterprise-scale architecture and secure communications
• Strong troubleshooting instincts and a proactive mindset
• Comfort working independently and collaboratively under pressure
• Clear, concise documentation and communication skills
• A passion for making networks faster, smarter, and more secure

At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today

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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:

September 24, 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 $112,450.00 - $203,275.00

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.