Senior Information Systems Security Officer (ISSO)

Base-2 Solutions; Maryland; Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Hybrid work model

Health insurance

Dental coverage

Vision coverage

401(k) with match

Paid time off and holidays

Flexible schedules

Job summary

Base-2 Solutions is seeking a Senior Information Systems Security Officer (ISSO) to lead cybersecurity initiatives across programs requiring Top Secret/SCI with CI Polyograph clearance. The role is based in Annapolis Junction, MD with a hybrid on-site/remote work arrangement.

You will conduct security assessments, maintain RMF/ATO artifacts, implement NIST 800-53 controls in cloud-native environments, and collaborate with ISSMs, system owners, and engineers to ensure secure system design and

Qualifications

• Active Top Secret/SCI with CI Polygraph
• Experience with ICD 503 security requirements
• Experience writing SSPs, POA&Ms, and security artifacts

Responsibilities

• Conduct technical security assessments and contribute to security systems.
• Ensure system security compliance, manage risk, and support certification activities (ATO/IATT).
• Collaborate with application leads, sysadmins, dbas, developers and testers to maintain security compliance and ATO.
• Develop and maintain SSPs, POA&Ms, and other required security documentation using XACTA.
• Drive IATT and ATO efforts with stakeholders, cyber, and AO.
• Implement and validate NIST 800-53 controls in cloud-native DPaaS environments.
• Apply Zero Trust principles to data services, identity, segmentation and flow control.

Skills

XACTA

RMF

Splunk

Security+

ATO

NIST 800-53

Zero Trust

Education

Bachelor’s degree substituted with 4 years of experience

Master’s degree substituted with 6 years of experience

Job description

• Required Security Clearance: Top Secret/SCI with CI Polygraph
• Location: Annapolis Junction, MD
• Work Type: Hybrid (On-Site and Remote)
• Shift: First

Position Summary

As a Senior Level Information Systems Security Officer (ISSO) at Base-2 Solutions you will play a pivotal role in shaping and enhancing cybersecurity initiatives.

Essential Duties And Responsibilities

• Conduct technical security assessments and contribute to the security systems.
• Ensure system security compliance, manage risks, and support certification activities throughout the program life cycle.
• Work with the application leads, sysadmins, dbas, developers and testers to ensure the assigned systems are security compliant and achieve/maintain ATO.
• Answer questions to ensure systems are developed with security compliance built in.
• Support security assessment events and respond to all questions from ISSMs and SCAs
• Develop and maintain SSPs, POA&Ms, and other required security documentation using XACTA.
• Drive IATT and ATO efforts, coordinating with stakeholders, cyber, and Authorizing Official (AO).
• Implement and validate NIST 800-53 controls in cloud-native DPaaS environments.
• Apply Zero Trust principles to secure data services, including identity, segmentation, and flow control.

Required Qualifications

• Security+ or other IAT II/III level certification that is currently active.
• Proficiency with XACTA and RMF process, including managing IATT and ATO processes.
• Proficiency with Splunk.
• Experience conducting assessments of existing IT architecture for compliance with security requirements from applicable security frameworks (such as ICD 503).
• Experience with implementing and maintaining system security documentation, including SSPs, SAPs, POA&Ms, and security assessment artifacts, coordinating closely with ISSMs, ISSEs, system owners, and authorizing officials.

Preferred Qualifications

• Prior Information System Security Officer or Information System Security Engineer experience
• Proven experience leading cybersecurity initiatives for significant programs, showcasing a comprehensive understanding of large‑scale program requirements.
• Demonstrated success in team management, highlighting the ability to effectively guide and coordinate cybersecurity professionals.
• Strong background in communication, with a track record of effectively engaging with customer, program leads, leadership teams, and engineers to convey complex cybersecurity concepts and strategies.

Required Education and Experience Equivalency

• 18 Years of experience in Security, Cyber, or Systems Engineering roles or a highly related field of work with similar scope and responsibilities.
• A bachelor's degree may be substituted for 4 years of experience and a master's degree may be substituted for 6 years of experience.

Required Security Clearance

• Active Top Secret/SCI with CI Polygraph
• U.S. citizenship is required

Equal Employment Opportunity

Base-2 Solutions is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy), national origin, age, sexual orientation, gender identity, genetic information, protected veteran status, or any other characteristic protected by law, and will not be discriminated against on the basis of disability. Learn more: base-2solutions.com/eeo

Pay & Benefit Highlights

Compensation

• Competitive fixed salary or hourly pay (based on experience, skills, location, and internal equity).
• Employee referral bonuses up to $10,000 per hired referral.
• Additional bonus opportunities for exceptional performance and contributions to business development and company growth (role-dependent).

Health

• 100% company-paid medical premiums for employees and eligible dependents.
• Choose from multiple plan options with CareFirst, Kaiser, and UnitedHealthcare, including PPO, POS, HMO, and HSA-compatible plans.
• 100% company-paid dental premiums for employees and eligible dependents.
• 100% company-paid vision premiums for employees and eligible dependents.

Income Protection

• 100% company-paid premiums for short-term disability.
• 100% company-paid premiums for long-term disability.
• 100% company-paid premiums for accidental death & dismemberment (AD&D).
• 100% company-paid premiums for life insurance up to $200,000.

Retirement

• 401(k) with immediate vesting: 4% company match plus a 4% non-elective company contribution (8% total).
• 401(k) pre-tax and Roth options.

Leave

• Up to 20 days of flexible paid time off (PTO).
• 11 paid floating holidays.

Work-Life Balance

• Flexible work schedules, including flex time and compressed work periods (contract and project-dependent).