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Job#: 3036300
Job Description:
ISSO
Location: Washington, District of Columbia (Onsite)
Role Overview
We are seeking an Information System Security Officer (ISSO) to oversee the cybersecurity posture for a resource management system used within a U.S. government environment. This role is responsible for implementing and maintaining the system's security architecture in accordance with government directives. The ISSO will serve as a key liaison, working with internal IT departments to ensure continuous compliance and risk mitigation for a secure, web-based management system that handles budget planning, manpower allocation, and personnel assignments.
Key Responsibilities

• Develop, implement, and maintain the System Security Plan (SSP) and related authorization documentation, including continuous monitoring plans and incident response procedures.
• Conduct regular risk assessments, vulnerability scans, and security control assessments to identify and remediate threats.
• Coordinate Certification and Accreditation (C&A) processes to achieve and sustain Authority to Operate (ATO) status.
• Manage user access controls, authentication mechanisms, and audit logging to ensure least privilege and role-based access.
• Respond to security incidents, perform root cause analysis, and implement corrective actions within established timelines.
• Provide security awareness training to system users and maintain compliance with security standards for data handling.
• Support system updates, patches, and enhancements by evaluating their security impact.

Required Qualifications
Experience: A minimum of five (5) years of experience in information security roles is required, with specific expertise in classified network environments. Candidates must have hands-on experience with on-premise, web-based applications in a secured and virtual environment.
Technical Skills: The individual must demonstrate knowledge of U.S. government cybersecurity frameworks (e.g., NIST SP 800-53, RMF) and familiarity with systems built on ColdFusion and Oracle.
Certifications: A relevant certification such as CISM or an equivalent is required. A CISSP is preferred but not mandatory.
Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.
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Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Everforth Apex team member can provide.
Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.
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