Senior Information System Security Engineer

Description & Requirements

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!

MANTECH seeks a motivated, career and customer-oriented Senior Information System Security Engineer (ISSE) to join our team in Norfolk, VA. This is a remote position.

As an ISSE, you will have the opportunity to work on innovative and mission-critical and national security projects. You will collaborate with a skilled team of professionals, responsible for developing accreditation packages for cloud systems in both AWS and Azure environments. This position offers great opportunities for technical growth and improved experience in Cyber Security.

Responsibilities include but are not limited to:

• Performing cyber security research under NAVSEA for cloud and network solutions
• Developing, defining, and aiding in implementing cyber security policies and processes
• Defining IS and Network Environment security requirements in accordance with applicable cybersecurity requirements
• Supporting A&A packages for multiple projects
• Applying security expertise to new modernization cyber solutions that provide confidentiality, integrity, availability, authentication, and non-repudiation for security policies and memorandum for records
• Developing Plan of Action and Milestones with proper Mitigations or Remediations, accordingly
• Developing approaches to mitigate IS and Cloud Network Environment vulnerabilities and recommend changes to network or network system components as needed
• Travel up to 25%

Minimum Qualifications:

• Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related technical field, and 8+ years of relevant experience
• 5+ years of developing secure solutions for incident response, business continuity, and disaster recovery
• 3+ years of implementing security controls and policies with emerging cybersecurity technologies, including access control, privileged access management, data security, network security, data loss prevention, cloud security, vulnerability management, configuration management, privacy, and audits
• Must have an active Security+ certification
• Must have an AWS Cloud Certification
• Must be familiar with the use and operation of security tools including AWS Inspector, STIG Viewer, eMASSter, and Tenable Nessus and/or Security Center
• Knowledge and experience working with federal compliance and guidance, including FISMA, RMF, Federal Enterprise Architecture Framework, DoDAF, NIST Cybersecurity Framework, NIST 800 series, FedRAMP and cloud-based security controls

Preferred Qualifications:

• Experience with cloud systems, cloud hosting environment, or cloud brokerages, preferably Navy
• Master’s degree in Computer Science, Information Technology, Engineering, or a related technical field
• One of the following certifications: Certified Information Systems Security Professional (CISSP), CompTIA Advanced Security Practitioner (CASP) CE, Certified Secure Software Lifecycle Professional (CSSLP), CISSP- Information System Security Engineering Professional (ISSEP), or CISSP- Information System Security Architecture Professional (ISSAP) or an equivalent security certification

Clearance Requirements:

• Must possess an active Secret Clearance

Physical Requirements:

• Must be able to remain in a stationary position 50% of the time.
• Needs to occasionally move about inside the office to access file cabinets, climb ladder wells on vessels, etc.
• Frequently communicates with co-workers, management, and customers, which may involve attending meetings.
• Must be able to exchange accurate information in these situations.

The projected compensation range for this position is $117,000.00-$195,100.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.

General information

Requisition #

R71583

Locations

USA-Remote Work

Posting Date

10/29/2026

Security Clearance Required

Secret

Remote Type

Fully Remote

Time Type

Full time