Senior Information Systems Security Officer (ISSO)

We are seeking an experienced Senior Information Systems Security Officer (ISSO) for a 100% onsite role in Annapolis Junction, MD . The ideal candidate will hold an active TS/SCI clearance with Full Scope Polygraph and will oversee and strengthen the security posture of mission-critical information systems, ensure compliance with federal information assurance standards, manage day-to-day security operations, and support certification and accreditation processes for classified systems.

Key Responsibilities:

• Lead and support information assurance efforts for programs, systems, and networks.

• Develop, implement, and enforce information security policies, standards, and procedures.

• Maintain and monitor operational security posture to protect sensitive information.

• Conduct risk and vulnerability assessments, and provide recommendations to mitigate threats.

• Evaluate security technologies to ensure they meet requirements for handling classified information.

• Manage system changes and assess their impact on security controls.

• Prepare and review security documentation, including:

• System Security Plans (SSPs)

• Risk Assessment Reports

• Certification and Accreditation (C&A) packages

• System Requirements Traceability Matrices (SRTMs)

• Support security authorization activities in accordance with DoD Risk Management Framework (RMF) and IC/NISCAP guidelines.

• Oversee configuration management for security-related software, hardware, and firmware.

Requirements

• Active TS/SCI clearance with Full Scope Polygraph required.

• Bachelor’s degree in Computer Science, Information Security, Information Assurance, or a related field.

• 12+ years of experience in information systems security.

• 7+ years as an ISSO supporting DoD or IC programs with similar complexity and scope.

• DoD 8570 compliance: IAM Level II or IAT Level III certifications (e.g., CASP, CISSP, or equivalent).

• Strong knowledge of federal security frameworks, risk management, and accreditation processes.

• Proven ability to manage multiple security operations and projects in a classified environment.

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.

• 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.