Sr. Information Systems Security Officer (ISSO)

We’re seeking a Senior Information Systems Security Officer (Sr. ISSO) to support a mission-critical program in Annapolis Junction, MD. In this role, you'll oversee the security posture of classified systems, enforce cybersecurity policies, and guide compliance efforts under DoD RMF and NIST standards. Ideal candidates bring deep ISSO experience in DoD or IC environments and are ready to lead in a high-security, high-impact setting. Key Responsibilities: Maintain the operational security posture for assigned systems, ensuring compliance with established policies and procedures. Coordinate, implement, and enforce cybersecurity standards, methodologies, and system security policies. Assist in day-to-day security operations and system administration duties. Evaluate and recommend security tools and solutions that meet classified information protection requirements. Conduct vulnerability and risk assessments to support accreditation and security decisions. Lead efforts in preparing security documentation including SSPs, SRTMs, Risk Assessment Reports, and C&A packages. Manage configuration changes and assess security impacts of modifications to systems. Support authorization activities aligned with DoD RMF and NISCAP requirements. Requirements Required Qualifications: Bachelor’s Degree in Computer Science, Information Assurance, Information Security, or a related discipline. 12+ years of relevant professional experience, including: 7+ years as an ISSO supporting IC or DoD programs of similar scope and complexity. Active TS/SCI with Full Scope Polygraph clearance (required). DoD 8570 IAM Level II or IAT Level III certification (e.g., CISSP, CASP, or equivalent). Benefits Core Benefits: Paid Time Off (PTO): Accrued Semi-Monthly, commensurate with experience. Holidays: 7 Standard Holidays + 4 Floating Holidays (Employee Choice). Payroll: Paid Semi-Monthly on the 7th and 22nd. Direct Deposit Available. 401(k): 100% match on contributions up to 4% through VANGUARD; immediate vesting. Plus, 0% to 4% Profit Sharing at year-end. Reward & Recognition Programs: Participation in Employee Referral and Bonus Programs. Health Benefits: Medical Coverage: Choice of HMO and POS Coverage by BCBS CareFirst. HMO Plan covers employees and their families at 100%. Dental & Vision Coverage: Provided at no cost to the employee by Delta Dental and VSP. Life Insurance: $100,000 coverage per employee at no cost, with additional options. Long-Term Disability: 60% of base monthly earnings up to $10,000/month. Short-Term Disability: 60% of weekly salary up to $2,000/week. Quality of Life Benefits: Mobile Phone Allowance: $75/Month Internet Access Allowance: $50/Month Grooming Allowance: $50/Month Fitness Allowance: $600/Annually Professional Association Memberships: $350/Annually Wellness Challenges: Amazon Gift Cards for Successful Completion. Special Benefits: Annual Corporate Trip: Travel and lodging for eligible employees and their families. Tuition Reimbursement: Support for continued learning up to $5,000 annually.