Information Systems Security Officer (ISSO)

Join the Digital Modernization Sector! We're on the lookout for a dynamic and experienced Information Systems Security Officer (ISSO) with 12+ years of expertise to help drive mission-critical cybersecurity initiatives. In this high-impact role, you'll support Accreditation & Authorization (A&A) efforts across multiple tiers of the customer organization, playing a key role in strengthening security at the Group level and beyond. If you're ready to lead, collaborate, and make a difference-this is your moment!

Candidate MUST:

Be currently located in the United States.

Be or US Person () with the ability to obtain a level 4 Public Trust Clearance.

This role is primarily remote, with occasional onsite requirements. Candidates must be local to the DC Metro area and available to attend in-person meetings in Washington, DC as needed.

Responsibilities:

Other skills and responsibilities include, but are not limited to:

• Develops, reviews, evaluates, and verifies self-testing results to validate enclave security requirements for organizational security policies) are met for Cloud technical systems for the government portfolio.
• Perform Certification & Accreditation (C&A), System Assessment & Authorization (SA&A) as part of NIST SP 800-37 Risk Management Framework (RMF) system and application accreditation.
• Evaluation of the assigned information systems' security control compliance with the federal requirements and the client's monitoring strategy.
• Management of emerging and defined risks associated with the administration and use of assigned information systems.
• Coordination with the client's Cybersecurity team to achieve and maintain the information systems' compliance and authorization to operate (ATO).
• Ensuring systems are operated, maintained, and disposed of in accordance with policies outlined in the approved security authorization package.
• Performing annual assessments to ensure compliance with the client's policies and standards.
• Serve as a member of the Change Control Board (CCB) to ensure configuration management for Cybersecurity-relevant software, hardware, and firmware is maintained and documented.
• Ensuring information system security requirement are addressed during all phases of information systems lifecycle.
• Work within a team environment to provide technically sound guidance order to adhere to the cybersecurity industry best practices and the client's monitoring strategy.
• Analyze collected information to identify vulnerabilities and potential for exploitation and effectively present the results and guidance derived from scans to system owners or other leadership, as required.
• Effectively communicate orally and in writing to track and detail the demands, efforts, and shortcomings in meeting the goals of the client's information system monitoring strategy.
• Support the integration/testing, operations, and maintenance of systems security.
• Develops, updates, and maintains internal Standard Operating Procedures for all internal assigned functions.

Required Qualifications:

• Bachelor's Degree and 12+ years of ISSO experience directly supporting the customer. Additional years of experience in lieu of degree may be considered.
• Public, private and hybrid Cloud experience (AWS, Microsoft Azure, etc.).
• Active Public Trust Clearance or Ability to obtain a Public Trust Clearance.

Certifications: At least 1 is required

• CISSP or GSLC certification

The Mission

The Digital Modernization Sector is focused on delivering performance-based IT services and repeatable solutions to include applying cloud-factory and aaS (as a Service) capabilities and integrating commercial products to provide a comprehensive digital engineering approach to IT transformation. Our team is solving the world's toughest security challenges for customers with "can't fail" missions. To explore and learn more, click here!

Come join our rapidly growing team and enjoy these benefits:

• Paid Time Off (PTO) accrued based on Leidos policy, up to 3 weeks a year.
• Eleven (11) paid holidays per year.
• Access to benefits on day one including medical and dental insurance, 401K, Life, AD&D, Voluntary Disability plans.
• Ongoing training to support your success.
• Discounted Leidos stock purchase and other Employee Discounts.

Original Posting:
May 2, 2025
For 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.

Pay Range:
Pay Range $126,100.00 - $227,950.00

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.