Senior Information Systems Security Officer; ISSO

Senior Information Systems Security Officer (ISSO)

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.

Click here to learn more about how this program “Delivers Mission Success!”

• Ensure the appropriate operational security posture is maintained for information systems.
• Support continuous monitoring of networks to detect and correct areas of security non‑compliance, unmitigated vulnerabilities, and other risks.
• Follow consistent security processes and play a role in the information systems continuous monitoring program.
• Perform regular audits of information systems.
• Assist the information systems security manager in preparing the information system for periodic reaccreditation.

• Experience as an ISSO with emphasis on Defense‑in‑Depth principles, network, and enterprise security architecture.
• Experience applying the principles of the NIST 800‑53 including the procedures in the Risk Management Framework (RMF).
• Familiarity with STE/STN requirements and associated tools and tradecraft.
• Bachelor's degree plus eight (8) years of relevant experience or master’s degree plus six (6) years of relevant experience; alternative educational pathways noted.
• Information Assurance Manager (IAM) Tier 1 certification (CAP, Security + CE, GSLC).
• Excellent written and oral communication skills.
• Active TS/SCI with Polygraph security clearance required.

Pay Range: $ - $

Qualified candidates are eligible for enhanced incentives including up to a $25,000 cash sign‑on bonus or a paid time‑off bonus.

Benefits include 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 more.

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.