Information System Security Officer III

At The One 23 Group, our mission is to set the benchmark for excellence in government services. We empower our clients in the Department of Defense, Intelligence Community, and Federal Civilian sectors to excel with our advanced capabilities. Our dedication lies in fostering a people-first culture, underpinned by steadfast ethical principles. Embracing innovative technologies and process improvements, we are steadfast in our journey toward a future that is both bright and transformative.

Our expertise spans consulting and analytics, digital workplace solutions, and cyber compliance. With our global footprint, we place a strong emphasis on nurturing our people and culture, which forms the core of our successful strategies in leadership and financial management. We pride ourselves on our extensive experience and effective approach, ensuring that we lead with both innovation and integrity.

The One 23 Group is seeking an Information System Security Officer III – Senior-Level, willing to work remotely, local to the Washington D.C. metropolitan area. 

The Information System Security Officer III – Senior-Level will provide cyber security management, oversight, and customer support for maintaining the continuity of DHS Management Information System compliance in accordance with DHS, National Institute of Standards and Technology (NIST), and other applicable Federal standards.

Duties Include:

• Applies extensive knowledge of a variety of the Cybersecurity field’s concepts, practices, and procedures to ensure the secure integration and operation of all systems.
• Applies extensive experience with the implementation of the NIST SP 800 family of publications, particularly those associated with NIST’s Risk Management Framework and FedRAMP.
• Applies extensive specialized knowledge of financial audit standards, classified system IA requirements and Privacy Act requirements.
• Applies extensive experience with evaluating system, network, or infrastructure security controls against requirements such as FISMA, FIPS, and NIST guidelines.
• Applies extensive knowledge and experience with all of the following criteria:
• Vulnerability scanning execution, assessment, and analysis operating system and network knowledge (i.e., Local Area Networks [LAN] and Wide Area Networks [WAN])
• Information security and assurance principles (e.g., Defense-in-depth) and associated supporting technologies
• Application security, database security, and network security
• Relies on extensive experience and judgment to plan and accomplish goals.
• Works independently to solve problems quickly and completely.
• Possess experience in supporting, monitoring, testing, and troubleshooting hardware and software IA problems.
• Possess ability to assess and weigh current and evolving security threats in an operational environment.
• Outstanding problem solving and analytical skills, including ability to create clear observations, analysis and conclusions based on customer interviews and data.
• Team player who can collaborate with multiple stakeholders to arrive at the best solution.

• Master’s degree and 6 years of Cybersecurity & Federal Information Security Modernization Act (FISMA) experience, or a bachelor’s degree and 8 years of Cybersecurity & FISMA experience or a total of 10 years of Cybersecurity & Federal Information Security Modernization Act (FISMA) experience
• Must be located within the Washington D.C. Metropolitan area
• Clearance Requirement: Must be able to obtain a Public Trust security clearance.
• Possesses one (1) of the following professional security certifications:
  • Certified Information Systems Security Professional (CISSP)
  • Certified Information Security Manager (CISM)
  • Certified Ethical Hacker (CEH)
  • CompTIA Advanced Security Practitioner (CASP)
  • Systems Security Certified Practitioner (SSCP)
  • Certified Information Systems Auditor (CISA)