Information System Security Officer (ISSO)

Information System Security Officer (ISSO)G2 Ops supports mission-critical defense and technology initiatives by solving complex operational and engineering challenges. We are seeking a motivated, collaborative Information System Security Officer (ISSO) to support U.S. Navy submarine systems and cybersecurity authorization activities.In this role, you'll contribute to Risk Management Framework (RMF) authorization, security control compliance, and continuous monitoring activities that protect mission-critical Navy systems. You'll work closely with government program management, Information System Security Managers (ISSMs), Information System Security Engineers (ISSEs), system integrators, and other stakeholders to maintain Authorization to Operate (ATO) readiness and ensure compliance with applicable DoD/DoW and Department of the Navy cybersecurity requirements.What You'll DoDevelop, review, and maintain Risk Management Framework (RMF) authorization packages, including SSPs, SAPs, SARs, and supporting cybersecurity documentation.Manage authorization workflows, security artifacts, and approval submissions in eMASS to support initial and ongoing authorizations, annual reviews, and ATO maintenance.Maintain authorization boundaries, system inventories, security control implementation statements, and control allocation documentation in accordance with NIST SP 800-53 Rev. 5 and Navy requirements.Evaluate cybersecurity risks through ACAS vulnerability scans, STIG compliance reviews, penetration testing findings, and security control assessments.Develop and maintain Plans of Action and Milestones (POA&Ms), tracking vulnerabilities, remediation efforts, risk ratings, and corrective action closure.Coordinate with system owners, integrators, hosting providers, and government stakeholders to validate security control evidence, assess control inheritance, and resolve assessment findings.Conduct Security Impact Assessments (SIAs) for system changes and support continuous monitoring, annual control assessments, contingency planning, and compliance reporting.Collaborate with Security Control Assessors (SCAs), ISSMs, and government stakeholders to support authorization decisions, address security findings, and maintain program readiness.Support Type Authorization strategies and cybersecurity requirements for Navy systems deployed across multiple sites and organizational boundaries.Track authorization milestones, communicate cybersecurity risks and remediation progress, and prepare decision-support materials for leadership while ensuring compliance with Navy RMF Process Guide, Navy SCA Business Rules, and applicable DoW/DON policies.What You'll BringRequired QualificationsBachelor's degree in Cybersecurity, Computer Engineering, Electrical Engineering, Electronics Engineering, Mathematics with a concentration in Computer Science, or equivalent qualifications.3+ years of professional experience in cybersecurity engineering, including demonstrated experience supporting DoD or Navy RMF authorization activities.Hands-on experience developing, reviewing, and maintaining RMF authorization packages within eMASS.Strong working knowledge of NIST SP 800-53 Rev. 5, DoDI/DoWI 8500.01, DoDI/DoWI 8510.01, and applicable DoD/DoW and DON cybersecurity requirements.Experience reviewing ACAS vulnerability scans, STIG compliance results, penetration testing findings, and security assessment documentation.Experience managing POA&Ms, security control evidence, risk mitigation activities, and continuous monitoring requirements.Familiarity with SSPs, SAPs, SARs, security authorization boundaries, and ATO processes.Ability to coordinate effectively with government program personnel, cybersecurity assessors, system integrators, and technical stakeholders.Ability to communicate complex cybersecurity risks, assessment findings, and remediation recommendations clearly and accurately.Relevant cybersecurity certifications aligned with assigned DoW 8140workforce requirements.Preferred QualificationsExperience supporting NAVSEA, NUWC, or Navy acquisition programs.Experience performing RMF authorization activities for submarine, shipboard, or other Navy platform systems.Familiarity with the Navy RMF Process Guide and Navy SCA Business Rules.Experience supporting Type Authorizations, multi-site deployments, or systems with complex security authorization boundaries.Knowledge of security control inheritance involving system integrators, external operators, or hosting providers.Additional ConsiderationsThis is a full-time position supporting mission-focused customer environments.Outside employment or activities must not create conflicts of interest with company or customer responsibilities.Why G2 Ops? What makes someone choose one company over another? Compensation, benefits, meaningful work, flexibility, growth opportunities, culture?At G2 Ops, we believe you shouldn't have to choose.We offer competitive pay and benefits, but what truly sets us apart is our collaborative culture. Team members support mission-focused projects alongside highly skilled technical professionals across engineering, cybersecurity, operations, and program teams.We encourage continuous learning, cross-training, and professional growth while empowering team members to contribute ideas that improve how we work and deliver value to our customers.At G2 Ops, your contributions matter to our customers' missions and to the continued success of our team.Compensation & Benefits. The annual salary range for this position is $105,000 – $130,000, depending on qualifications and experience.G2 Ops offers a competitive compensation and benefits package designed to support our employees both personally and professionally, including:100% company-paid insurance for medical, dental, and vision for eligible employees and family members100% company-paid insurance for life, short-term disability (STD), and long-term disability (LTD) for eligible employees401(k) plan with discretionary employer matching10 paid holidaysPaid time off (PTO)Educational assistanceIn addition, we provide professional development opportunities, performance recognition programs, and resources that support long-term career growth and work-life balance.AI at G2 Ops. At G2 Ops, we don't just talk about AI — we actively use it to improve how we work.Our teams are integrating AI into engineering, cybersecurity, operations, and decision-making workflows. We continue to invest in secure AI tooling aligned with government security requirements while developing practical, mission-focused applications across the company.Whether your role is technical or operational, you'll have opportunities to explore how AI can enhance efficiency, innovation, and mission impact.Work Environment. Because we support classified and mission-critical DoD programs, many roles require onsite collaboration at G2 Ops offices and/or customer locations. Depending on program requirements, telework and flexible scheduling options may be available.We've built a collaborative environment where team members can learn, contribute, and grow while supporting meaningful customer missions.Ready to Apply? If you're excited about solving meaningful problems, working alongside talented teammates, and contributing to important mission-focused work, we'd love to hear from you.We look forward to learning more about you!About G2 Ops, Inc. (G2 Ops)G2 Ops leverages over a decade of experience integrating Systems, Cybersecurity, and Software Engineering techniques to provide solutions to a growing list of Government and private customers. We combine cutting edge tools with innovative engineering practices, data analytics, and risk algorithms that enhance visibility into complex infrastructures, optimizing resiliency in system design and operations.G2 Ops is a woman-owned small business led by an executive staff known for providing innovative solutions to solve our nation's most complex engineering challenges. G2 Ops has been named to the Inc. 5000 list of America's fastest growing companies each of the last 9 years (2018-2026) and has locations in Arlington, VA, Virginia Beach, VA, and San Diego, CA.G2 Ops, Inc. is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, gender identity), national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.G2 Ops, Inc. participates in the E-Verify program. Employment is contingent upon verification of identity and authorization to work in the United States.Applicants have rights under Federal Employment