Senior Information System Security Officer with Security Clearance

Base-2 Solutions; Reston (VA); On-site; USD 140,000 - 210,000; Full time

Benefits offered by this job

Excellent health benefits

401(k) with match

Paid time off and holidays

Professional development support

Job summary

Base-2 Solutions seeks a Senior Information System Security Officer to collaborate with application leads, sysadmins, and developers to sustain security compliance and ATO status. The role follows RMF processes for full and partial testing, continuous monitoring, and no-test scenarios, updating SSPs, SCTMs, STPs, and POAMs in Xacta.

Responsibilities include loading STIG checklists and ACAS scans, implementing STIGs, addressing findings, and supporting ST&E, ISSMs, and SCAs with security

Qualifications

• Bachelor's degree in computer science, software engineering, or related field.
• 19+ years of experience with a Bachelor's degree, or equivalency.
• Experience developing and enforcing security policies and procedures.
• Active Top Secret/SCI with CI Polygraph clearance.
• Strong track record in risk assessments, vulnerability management, and incident response.

Responsibilities

• Work with cross-functional teams to ensure security compliance and ATO.
• Follow RMF processes for full/partial tests and continuous monitoring.
• Update Xacta artifacts: SSPs, SCTMs, STPs, POAMs.
• Load STIG and ACAS artifacts; mitigate findings and support assessments.
• Respond to questions from ST&E, ISSMs, and SCAs; support secure development.
• Maintain security controls and coordinate with defense-in-depth teams.
• Help ensure systems are designed with security built in.

Skills

Security policy development

Risk assessment

Mitigation planning

Continuous monitoring

Incident response

RMF/CSM processes

Xacta / documentation

Education

Bachelor's degree in CS/SE or related field

High School + 23 years experience

Associate's + 21 years experience

Bachelor's + 19 years experience

Master's + 17 years experience

PhD + 15 years experience

Tools

Xacta

ACAS scans

STIG checklists

Job description

Job Description Position Summary Base-2 Solutions is seeking a Senior Information System Security Officer to work with application leads, system administrators, database administrators, developers, and testers to ensure assigned systems are security compliant and achieve or maintain Authority to Operate (ATO). The role includes following the Risk Management Framework (RMF) process for full test, partial test, continuous monitoring (CONMON), and no test scenarios, updating Xacta documentation including System Security Plans (SSPs), Security Control Trace Matrices (SCTM), Security Test Plans (STPs), and Plans of Action and Milestones (POAMs). The specialist will load artifacts such as Security Technical Implementation Guide (STIG) checklists and ACAS scans, help implement STIG checklists, mitigate scan findings, support security assessment events, and respond to questions from the Security Test and Evaluation (ST&E) team, Information System Security Managers (ISSMs), and Security Control Assessors (SCAs).

Essential Duties and Responsibilities

• Work with application leads, system administrators, database administrators, developers, and testers to ensure systems are security compliant and achieve or maintain ATO.
• Follow the RMF process for full test, partial test, continuous monitoring (CONMON), and no test.
• Update Xacta documentation including SSPs, SCTM, STPs, and POAMs.
• Load artifacts such as STIG checklists and ACAS scans.
• Help implement STIG checklists and mitigate scan findings.
• Answer questions to ensure systems are developed with security compliance built in.
• Support security assessment events and respond to all questions from the PAT team, ISSMs, and SCAs.

Required Qualifications

• Bachelor's degree in computer science, software engineering, or a field applicable to the position required.
• 19 or more years of relevant experience required with a Bachelor's degree.
• Additional experience may be considered in lieu of degree.
• Demonstrated experience in developing, implementing, and enforcing security policies, standards, and procedures to ensure regulatory compliance and protect organizational information assets.
• Proven track record in conducting risk assessments and identifying vulnerabilities in systems, networks, and applications.
• Experience in developing and overseeing implementation of mitigation strategies to reduce security risks.
• Strong background in monitoring systems and networks for security breaches and suspicious activity.
• Successful history of responding to security incidents, investigating root causes, and implementing corrective actions.

Preferred Qualifications

• Comprehensive knowledge of relevant laws, regulations, and industry standards.
• Experience conducting audits and assessments to verify adherence to security requirements.

Required Education and Experience Equivalency

• High School with 23 years of experience.
• Associate's with 21 years of experience.
• Bachelor's with 19 years of experience.
• Master's with 17 years of experience.
• PhD with 15 years of experience.

Required Certifications

• None specified.

Required Security Clearance

• Active Top Secret/SCI with CI Polygraph

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.

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).