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:
As part of this highly visible and fast-paced Leidos prime contract you’ll work on a small team that maintains multiple system security plans in a unique and lively customer-focused environment. The successful candidate will be part of a team that provides support to multiple organizations from a central location, with no travel requirements. This is an exciting position that supports a mission critical program with high visibility and a proven track record of success.
Don't miss out on this incredible opportunity to take your career to the next level. Apply today and join one of the most dynamic teams in the industry.
Job Responsibilities/Qualifications:
- Conduct complex network problem analysis; resolve complex network and telecommunications problems.
- Research, recommend, and evaluate network performance, optimization, and security solutions.
- Optimize end-to-end network system performance and traffic flow management.
- Minimize network latency and maximize data throughput through problem analysis and use of network performance analytic tools.
- Assist system engineers and cross-organizational teams to formulate solutions in response to mission requirements.
- Design and verify network solutions to support requirements for routing protocols, policy-based routing, traffic shaping, border gateway protocols, tunneling IP Security, network address translations, network security, firewall contexts, load-balancing, latency, data throughput, WAN acceleration, and monitoring.
- Introduce and integrate new network and telecommunications technologies.
- Provide guidance and leadership to Level 0-2 network engineers.
- Verify and validate activities of Level 0-2 network engineers, ensure approved methods and procedures are followed.
- Qualifications: Twelve (12) to fifteen (15) years’ experience as a Network Engineer or related skill set. Bachelor’s degree in technical discipline from an accredited college or university. Five (5) years of additional network engineering experience may be substituted for a bachelor’s degree.
- Security Clearance: Active TS/SCI with Polygraph required to be considered for this role.
- Certification Requirement: CCNA and CCNP
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!
Careers.leidos.com
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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:January 14, 2026For 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.
Top Skills
What We Do
We Are Leidos
For 50 years we have been tackling some of the biggest problems that face our nation and our world.
OUR MISSION
Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
Your most important work is ahead.
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