Senior Information System Security Officer
Listed on 2026-01-26
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IT/Tech
Cybersecurity, IT Consultant, Information Security
Description
Tyto Athene is hiring a Senior Information System Security Officer (ISSO) to support one of our law enforcement customers in Washington, DC. The successful candidate will ensure information systems and high value assets (HVA) meet NIST security requirements, managing the entire Risk Management Framework (RMF) and Authorization to Operate (ATO) life cycles.
ResponsibilitiesDevelop and update security authorization packages in accordance with the client's requirement and compliant with FISMA. Core documents that the candidate will be responsible for are the System Security Plan, Risk Assessment Report, Security Assessment Plan and Report, Contingency Plan, Incident Response Plan, Standard Operating Procedure, Plan of Actions and Milestones, Remediation Plans, Configuration Management Plan, etc.
Develop and maintain the Plan of Action and Milestones and support remediation activities
Validate protective measures for physical security are in place to support the system security requirements
Maintain an inventory of hardware and software for the information system
Develop, coordinate, test, and train on Contingency Plans and Incident Response Plans
Perform risk analyses to determine cost-effective and essential safeguards
Support Incident Response and Contingency activities
Perform security control assessment in using NIST 800-53A
Conduct independent scans of the application, network, and database (where required)
Provide continuous monitoring to enforce client security policy and procedures and create processes that will provide oversight into the following activities for the system owner
Coordinate with multiple stakeholders to complete mandatory agency data calls in a timely manner
The ISSO should be intimately familiar with some aspects of the following:
Federal Government Information Assurance policies and regulations to include OMB requirements, FISMA, and NIST 800 series
OMB A-123 circular; OMB A-130 circular; FIPS 140, 199, 200, 201; NIST SP 800-18, 37 Revision 1, 39, 53 Revision 3 and 4, 53A Revision 1, 60 Volumes 1 and 2, 800-64 Revision 2, 137, 144, 147; CNSS 1253 and risk management methodologies
Network, network protocols, routers, and switches and how they interact with automated vulnerability assessment tools, open-source vulnerability assessment tools, and techniques used for evaluating security controls on Windows, Linux, and Unix operating systems, networking devices, databases, and web servers
Developing custom assessment scripts
Network Security Architecture
Required:
8+ years of professional experience with at least 5 years supporting ISSO RMF activities.
Bachelor’s Degree or 4 years of additional experience in lieu of a degree.
A demonstrated understanding of information privacy, including information access, the release of information, and implementation of control technologies as they apply to privacy information contained in electronic and non-electronic media.
Thorough understanding and knowledge of FISMA, NIST RMF and Security and Privacy Assessment and Authorization (SPA&A) processes.
Experience with NIST publications, OMB circulars and memoranda, and CNSS publications and their requirements and impact on system security.
Proficiency in writing technical analysis reports with strong written and oral communication skills
Ability to work quickly, efficiently, and accurately in a dynamic and fluid environment
Good relationship management, business acumen, judgment, and ability to think critically
Experience supporting the legislative branch
Preferred certifications: CISA, CAP or equivalent
Experience with FedRAMP and cloud service providers
Experience with CSAM and Service Now
Experience with vulnerability assessments tools such as Nessus and/or Qualys
US Citizen with Public Trust eligibility required
LocationHybrid-remote in Washington DC, with the expectation to be onsite 2 days/week.
About Tyto AtheneTyto Athene is a trusted leader in IT services and solutions, delivering mission-focused digital transformation that drives measurable success. Our expertise spans four core technology domains—Network Modernization, Hybrid Cloud, Cybersecurity, and Enterprise…
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