Information Security System Officer (ISSO)

• Maintain accredited classified systems in an authorized operating state while meeting program delivery timelines

• Author, update, and defend RMF artifacts: System Security Plans (SSP), Security Assessment Reports (SAR), POA&Ms, Risk Assessment Reports, Configuration Management Plans, Incident Response Plans, Continuous Monitoring Plans, and hardware and software baselines

• Execute continuous monitoring: ACAS and Nessus vulnerability scanning, SCAP and STIG compliance checking, audit log review, and remediation tracking against CAT I, II, and III findings

• Support the design, development, and implementation of procedures and systems for secure facilities, and ensure facility compliance with requirements for classified information system processing

• Conduct risk and vulnerability assessments of planned and installed systems to identify vulnerabilities, threats, and protection needs, and recommend mitigations

• Lead periodic self-inspections and support DoD Cybersecurity On-Site Inspections, DCSA assessments, and customer security reviews across both sites

• Serve as first-line response for classified security incidents and spillage: detect, contain, preserve evidence, document, and escalate through the ISSM and program security chain

• Administer and harden classified computing and network infrastructure, including standing up and configuring new enclaves

• Manage user account provisioning, privileged access review, media control, and trusted download and data transfer procedures

• Deliver security awareness and system-specific training to cleared users and system administrators

• Maintain working knowledge of evolving policy, regulation, and compliance guidance affecting classified computing assets

• Bachelor's degree in a relevant field, or a minimum of 5 years of ISSO, ISSE, or cybersecurity policy and engineering experience in a classified environment

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(Security +) as a condition of employment

• Demonstrated proficiency applying RMF and writing authorization packages, with working knowledge of ICD-503, JSIG, and the NIST 800 series (800-53, 800-37, 800-171)

• Hands-on experience with security tooling: NESSUS and ACAS, DISA STIGs, STIG Viewer, SCAP Compliance Checker, and HBSS or ESS

• Experience designing, building, and maintaining information system enclaves, including the underlying computing hardware and network architecture

• Working knowledge of incident response, disaster recovery, forensic principles, continuous monitoring, and cybersecurity hygiene

• Active DoD security clearance (SECRET minimum) and U.S. citizenship

• Prior SAP experience as an ISSO, ISSE, or system administrator under JSIG, with current or recent program briefings

• TS/SCI with the ability to obtain program access

• eMASS, Xacta, or equivalent package management experience as a package author

• Experience with DCSA DAAPM and NISPOM-governed facilities, including Co-Use or multi-program environments

• Prior ISSM designation, or readiness to be designated ISSM for a smaller program

• Hands-on Linux (RHEL, Rocky, Ubuntu) and Windows Server administration in air-gapped and cross-domain environments

• Familiarity with cross-domain solutions, COMSEC and TACLANE operations, or trusted download procedures

• CMMC assessment or preparation experience on the CUI side

• Experience supporting a rapid-prototyping or startup defense environment

• Must be a U.S. Citizen

• Must hold an active DoD security clearance

• Must be eligible for and willing to accept Special Access Program briefings

• Position is 100% on-site. Classified work cannot be performed remotely.

For more information about U.S. security clearances: https://www.state.gov/securityclearances Don't meet every single requirement? If you're excited about this role but your past experience doesn't align perfectly with every qualification in the job description, we encourage you to apply anyway. You may be just the right candidate for this or other roles. Applied Intuition is an equal opportunity employer and federal contractor or subcontractor. Consequently, the parties agree that, as applicable, they will abide by the requirements of 41 CFR 60-1.4(a), 41 CFR 60-300.5(a) and 41 CFR 60-741.5(a) and that these laws are incorporated herein by reference. These regulations prohibit discrimination against qualified individuals based on their status as protected veterans or individuals with disabilities, and prohibit discrimination against all individuals based on their race, color, religion, sex, sexual orientation, gender identity or national origin. These regulations require that covered prime contractors and subcontractors take affirmative action to employ and advance in employment individuals without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status or disability. The parties also agree that, as applicable, they will abide by the requirements of Executive Order 13496 (29 CFR Part 471, Appendix A to Subpart A), relating to the notice of employee rights under federal labor laws.