Information Systems Security Officer (ISSO) Mid-Level

Information Systems Security Officer (ISSO) Mid-LevelULA is seeking a mid-level Information System Security Officer (ISSO) to provide comprehensive Risk Management Framework (RMF)/Authority to Operate (ATO) support and day-to-day Information Assurance (IA) for classified systems supporting Aerospace & Defense programs. In this role, you'll steward system cybersecurity across its lifecycle—leading control implementation, continuous monitoring, POA&M management, and audit/readiness activities to achieve and maintain Authority to Operate (ATO) under DoD and IC policies. You'll collaborate with program management, program engineering, IT ops, security leadership and program customers to ensure mission systems meet stringent confidentiality, integrity, and availability requirements.Responsibilities:RMF / ATO SupportExecute and document all RMF activities across the full lifecycle in accordance with DoDI 8510.01, NIST SP 80053, CNSSI 1253, JSIG/ICD 503, and customer-specific-guidance.Develop and maintain RMF artifacts including the SSP, SAP/SAR, POA&Ms, Contingency Plans, IR Plans, and related IA documentation.Support ATO package preparation and submission using government customer RMF/IA tools for evidence upload, workflow tracking, and assessor interactions.Implement, assess, and validate security controls; support control tailoring and inheritance strategies.Continuous Monitoring & CompliancePerform continuous monitoring using government approved compliance scanning tools: Vulnerability scanning tools STIG/SRG-based configuration validation Automated compliance assessments Maintain system baselines, secure configurations, asset inventories, and IA-related change documentation.Support audit readiness and assist with customer inspections, CCRI-type events, and periodic cybersecurity evaluations.Track, manage, and drive closure of POA&Ms and risk items.Secure Operations & Incident ResponseProvide day-to-day IA support for classified systems, including boundary analysis, system configuration reviews, and data handling oversight.Support event detection and response activities using government customer log aggregation tools, ensuring accurate log capture, retention, and reporting.Participate in incident response coordination with Contractor Program Security Officer (CPSO) in accordance with customer and organizational procedures.Guide engineering and operations teams on secure design principles, system changes, and cybersecurity impacts.Governance, Risk & ComplianceMaintain risk tracking, document deviations and mitigations, and communicate system risk posture to IA leadership and stakeholders.Support policy compliance, user training, secure handling, insider threat awareness, and governance activities.Coordinate with AOs, SCAs, customer cybersecurity offices, and program security personnel.Required Education: BachelorRequired Years of Experience: Minimum of 4 years of related work experienceBasic Qualifications:Active TS/SCI with CI Poly and ability to maintain eligibility. U.S. Citizenship requiredBachelor's degree in Cybersecurity, Computer Science, or related field; equivalent experience consideredFour years of directly related exempt work experience may be used to satisfy the bachelor's degree requirement4+ years of IA/cybersecurity experience with 3+ years directly supporting RMF/ATO for DoD/IC systemsCurrent DoD 8570/8140 Tier II certification or higherHands-on experience with NIST SP 800-53, DoDI 8510.01, CNSSI 1253, JSIG/ICD 503, and STIG/SRG applicationProficiency in vulnerability and compliance tools: Tenable Nessus, SCAP, DISA STIG Viewer, log/monitoring, and familiarity with patch managementExperience developing and maintaining SSP, SAR/SAP, POA&M, and RMF evidence; strong technical writing skillsKnowledge of network security, Windows/Linux hardening, virtualization, endpoint protection, identity & access management, encryption/key management, and secure configuration baselinesPreferred Qualifications:Additional cybersecurity certifications (CAP, CEH, GSEC, GSLC)Experience supporting Defense and Intelligence Community programsFamiliarity with secure cloud and hybrid environments (e.g., DoD Cloud SRG, IL2–IL6, GovCloud, IC ITE)Prior involvement in customer-led cybersecurity inspections or assessmentsSalary Range (for ULA - Denver only): $104,087.00 - $173,479.00What makes ULA different? Because we understand launch success comes through the collective efforts of a team, we seek the best to join us. We value ethics, ingenuity, engagement and professional development for employees at all levels. We offer our employees competitive pay and benefits including: 401(k) match plus an additional employer contribution Discretionary annual incentive bonus for eligible employees Generous paid time off Flexible work environments Additionally, most salaried ULA team members work a "9/80 schedule," meaning they enjoy every other Friday off. Benefits and work schedules may vary for union-represented hourly positions and are described in the applicable collective bargaining agreement.