Intermediate ISSO - PLACEMENT

Apex Systems; Oxon Hill (MD); Remote; USD 120,000 - 170,000; Full time

Benefits offered by this job

ESPP

401K

HSA

EAP

Certification discounts

Job summary

Everforth Apex is seeking an Intermediate Information System Security Officer to support a federal government customer. The role focuses on remediation, restoring the security program, and stabilizing the environment, with automation initiatives across about 90 systems.

You will work with system owners and cybersecurity teams to manage security controls enterprise-wide, emphasizing control families and RMF/ATO activities; 100% remote with occasional onsite as needed.

Qualifications

• U.S. citizenship required; ability to obtain Secret clearance.
• 7+ years in Information Security or ISSO for federal systems.
• Strong RMF, NIST guidance, and DHS 4300 series knowledge.

Responsibilities

• Execute RMF activities to support ATO decisions.
• Develop and maintain SSPs, POA&Ms, and Contingency Plans.
• Conduct security control assessments and vulnerability analyses.
• Support continuous monitoring and POA&M remediation.
• Produce security artifacts and assist audits and reviews.

Skills

RMF lifecycle

NIST controls

Security documentation

Security assessments

Continuous monitoring

Technical writing

Education

Bachelor's Degree

Associate's Degree

Tools

CSAM

eMASS

RegScale

Job description

Job#: 3049549

Job Description:

Candidates must be U.S. citizens able to obtain and/or maintain a Department of Defense security clearance as a condition and continuation of employment.

Intermediate ISSO

Location: Washington, DC (Remote)

Clearance: Must be eligible to obtain/maintain a Secret clearance.

Role Overview

We are seeking an Intermediate Information System Security Officer (ISSO) to support a federal government customer. The primary objective is to restore the security program, which has been neglected, by cleaning up existing compliance issues and stabilizing the environment. This role is central to remediation efforts and will involve enhancing automation to improve efficiency across approximately 90 systems. The position requires working with system owners and cybersecurity teams to manage security controls enterprise-wide, focusing on specific control families rather than individual systems.

Key Responsibilities

• Execute Risk Management Framework (RMF) activities to support Authorization to Operate (ATO) decisions.
• Develop, maintain, and update security documentation, including System Security Plans (SSPs), Plan of Action and Milestones (POA&Ms), and Contingency Plans.
• Conduct security control assessments, vulnerability assessments, and Security Impact Analyses for system changes.
• Support continuous monitoring, vulnerability management, and POA&M tracking and remediation.
• Implement security controls to ensure the confidentiality, integrity, and availability of information systems in compliance with federal standards.
• Support change management processes, including participating in Change Advisory Board (CAB) reviews.
• Prepare for and support security audits, testing, and compliance reviews by providing necessary documentation.
• Respond to cybersecurity data calls with timely information for leadership.
• Organize responsibilities by security control areas (e.g., Access Control, Configuration Management) across all systems.

Required Qualifications

Education and Experience:

• Bachelor's Degree and 10+ years of relevant experience; or an Associate's Degree and 12+ years of experience; or 16+ years of experience with no degree.
• A minimum of 7 years of experience in Information Security or as an ISSO supporting federal systems.

Citizenship and Work Location

• U.S. Citizenship is required.
• Candidates must reside within a local radius of Washington, D.C., and be available for occasional onsite work if requested.

Technical Skills and Knowledge

• Hands-on experience with the RMF lifecycle and ATO activities.
• Strong knowledge of FISMA, NIST 800-37, NIST 800-53, and DHS 4300 Series.
• Experience developing and maintaining SSPs, POA&Ms, Contingency Plans, and other security artifacts.
• Background in conducting security control assessments and Security Impact Analyses.
• Proficiency in continuous monitoring, vulnerability management, and POA&M remediation.
• Strong technical writing skills for producing compliance and assessment documentation.

Certifications

• Must hold a CISSP, CISM, or CASP+ certification.

Preferred Qualifications

• Experience supporting the Department of Homeland Security (DHS) or its components.
• Understanding of cloud security concepts, with experience in AWS or Azure.
• Experience with Governance, Risk, and Compliance (GRC) tools such as CSAM, eMASS, or RegScale.

Work Environment

This position is currently 100% remote. The immediate focus is on remediation and stabilization, with automation initiatives to follow. You will be part of a team-oriented environment focused on enterprise-wide security control management rather than system-specific assignments.

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 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.

If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.

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