Leidos has a new and exciting opportunity for a 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!  

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

• A Master’s degree in Computer Science, Information Assurance, Information Security Systems Engineering, or a related discipline from an accredited college or university and six (6) years of relevant professional Network Engineering experience or, Bachelor’s degree 8 years of experience. Candidates without a Bachelors or Masters Degree will be considered on a case by case basis and will require 12 or more years of hands-on Network Engineering experience.
• An Information Assurance Technical (IAT) level I baseline certification as defined by DoD 8570.01-M is required.
• Solid grasp of secure network design, configuration, and maintenance
• Experience with performance monitoring tools and data analysis
• Ability to optimize complex systems for speed and reliability
• IAT Level I certification (DoD 8570.01-M compliant)
• Clearance Requirement – Active TS/SCI with polygraph

Desired Qualifications:

• Experience in classified or 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

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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:

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.