Information Systems Security Officer
MantechMaryland, United States
Posted April 7, 2026
141500 - 236000 USD
Full Time
About the Company
Mantech is a technology and services firm that partners with U.S. federal agencies, the military, and allied organizations to deliver secure, mission‑critical solutions. Leveraging more than 57 years of experience, the company specializes in cyber defense, intelligence and counter‑intelligence, systems engineering, enterprise IT, software development, data analytics, and C4ISR/C5ISR capabilities. With a workforce of nearly 9,800 employees—40 % veterans and many from intelligence and homeland‑security backgrounds—Mantech brings firsthand operational insight to every project. Its reputation for reliability, adaptability, and a deep commitment to public service makes it a trusted partner for complex, high‑stakes challenges across defense, healthcare, and environmental sectors.
Job Description
MANTECH seeks a motivated, career and customer-oriented Information System Security Officer to join our team in Annapolis Junction, MD. As an ISSO, you will ensure the appropriate operational security posture is maintained for an Information System, develop and update System Security Plans (SSP's), and manage changes to the system. You will also perform Nessus Vulnerability and Compliance scans, interpret results, and develop plans to mitigate negative findings.
Requirements
- 10 years of experience as an ISSO with a Bachelor's degree in Computer Science or related discipline
- DoD 8570 compliance with Information Assurance Management (IAM) Level 1 or higher
- Experience in security tools, hardware, software, communication, and encryption techniques/tools
Benefits
- Health Insurance
- Life Insurance
- Paid Time Off
- Holiday Pay
- Short-term and long-term Disability
- Retirement and Savings
- Learning and Development opportunities
- Wellness programs