Junior Isso Jobs in Reston, VA (NOW HIRING)

Job#: 3047698
Job Description:
Jr. ISSO
Location: Oxon Hill, Maryland (Remote)
Role Overview
We are seeking a Junior Information System Security Officer (ISSO) to join our team. In this role, you will support Senior ISSOs with Risk Management Framework (RMF) compliance and system security. You will be responsible for maintaining security documentation, supporting Authority to Operate (ATO) efforts, and conducting risk and vulnerability assessments to ensure federal systems remain compliant and secure.
Key Responsibilities

• Execute Risk Management Framework (RMF) activities to support ATO packages and authorization decisions.
• Implement and assess security controls in accordance with NIST, FISMA, and DHS requirements.
• Develop, update, and maintain cybersecurity documentation, including System Security Plans (SSPs), Contingency Plans (CPs), Configuration Management Plans (CMPs), and Plans of Action & Milestones (POA&Ms).
• Support continuous monitoring activities, conduct system assessments, and manage vulnerability remediation efforts.
• Perform Security Impact Analyses (SIAs) for system changes and deployments.
• Assist with cloud security and compliance initiatives.
• Provide documentation for audits and respond to cybersecurity data calls.
• Analyze Risk Assessment Reports and FISMA scorecard metrics.

Required Qualifications

• Must be able to obtain and maintain a DHS/FEMA EOD.
• Bachelor's degree and 5+ years of relevant experience, or an equivalent combination of education and experience (Associate's & 7 years, Master's & 3 years, or 11 years without a degree).
• Experience with Risk Management Framework (RMF), FISMA compliance, NIST SP 800-37, and NIST SP 800-53.
• Experience creating and maintaining SSPs, POA&Ms, and Contingency Plans.
• Knowledge of DHS 4300 Series requirements.
• Experience with continuous monitoring and vulnerability management.

Preferred Qualifications

• Previous experience with DHS or a similar federal agency.
• Experience with GRC tools such as CSAM, RegScale, or eMASS.
• Awareness of cloud security concepts (AWS, Azure) and FedRAMP.
• Relevant security certifications such as CompTIA Security+, CISA, or CISSP.
• Technical writing and communication skills.

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.
Everforth Apex uses a virtual recruiter as part of the application process. Click for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at
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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