Principal Networks Systems Engineer; NSE
Listed on 2026-07-22
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IT/Tech
Cybersecurity, Systems Engineer
Leidos has a new and exciting opportunity for a Principal Network Systems Engineer in our Intelligence Sector's (INTEL) 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!
Our LOE program provides our customer's Operations organization with the best possible solutions for their mission needs. We achieve this through rapid prototyping, new development, and advanced technology research. From leading-edge visualizations to analytic development, we're always pushing the boundaries to find new and better data sources and tradecraft to answer intelligence questions. With a focus on collaboration and a fast-paced environment, our prototype development program is the ideal place to grow your skills and make a real impact.
Responsibilitiesand Qualifications
- Mission Focus
:
Leverage experience with or knowledge of the establishment and administration of large-scale corporate, government, and/or military networks to inform access and capabilities development. Analyze collection, including metadata and configuration files, to identify, baseline, and document network architecture and management; monitor and document target network modernization through classified and unclassified sources, and provide assessments of impact and vulnerabilities to enable access opportunities. - Technical Proficiency
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Be able to read, interpret, and provide network designs for various types of presentation both technical and high-level informative; thorough knowledge of STE/STN and RMF to ensure system compliance; troubleshoot network performance issues, analyze net traffic and provide capacity planning solutions; analyze and understand complex firewall security zones and policies with the ability to transform policies between multiple vendor firewall devices while meeting mission requirements;
utilize application security tools (i.e. Nessus, NMAP) to identify vulnerabilities and weaknesses. - Qualifications
:
Bachelor's degree plus 11 years of relevant experience or equivalent. - Desirable Skills
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Expert understanding of TCP/IP network architecture; demonstrated experience with networking concepts in a virtualized environment; expert knowledge in computer security, whether in pen testing, tool development or other related effort.
- Candidate must possess active TS/SCI with polygraph.
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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