Senior Information System Security Officer

Base-2 Solutions; Reston (VA); On-site; USD 130,000 - 190,000; Full time

Benefits offered by this job

Competitive salary

401(k) with company match

Company-paid health, dental, andvision

Floating holidays and PTO

Referral bonuses up to $10,000

Job summary

Base-2 Solutions is seeking a Senior Information System Security Officer in Reston, VA, to partner with application leads, system and database admins, developers, and testers to ensure compliance and maintain Authority to Operate. The role emphasizes RMF guidance, continuous monitoring, and artifacts loaded into Xacta such as SSPs, SCTMs, STPs, and POAMs.

You will respond to the ST&E team, ISSMs, and SCAs, implement STIG checklists, mitigate findings, and drive security controls across systems.

Qualifications

• Bachelor's degree in CS/SE or related field.
• 19+ years of relevant experience with a Bachelor's degree.
• Experience implementing RMF and achieving ATO.
• Proven ability to conduct risk assessments and mitigate vulnerabilities.
• Strong knowledge of security policies, standards, and regulatory compliance.

Responsibilities

• Ensure systems are security compliant and maintain ATO.
• Follow RMF for full/partial/CONMON/no test.
• Update SSPs, SCTMs, STPs, and POAMs in Xacta.
• Load STIGs and ACAS scans; mitigate findings.
• Support security assessment events and respond to ST&E, ISSMs, and SCAs.

Skills

RMF and NIST 800-53 controls

Xacta/Security artifacts

Vulnerability management and incident

Risk assessment and mitigation

Collaboration with IT teams

Education

Bachelor's degree in computer science / related field

19+ years of relevant experience with Bachelor's degree

Equivalents per degree path (Master/PhD) accepted

Tools

Xacta

ACAS

STIG checklists

POAM tracking

SCTM

Job description

• Required Security Clearance: Top Secret/SCI with CI Polygraph
• Location: Reston, VA
• Work Type: On-Site
• Shift: First

• Requisition ID: 5304
• Standard Title:
• Required Security Clearance: Top Secret/SCI with CI Polygraph
• Location: Reston, VA
• Work Type: On-Site
• Shift: First
• Referral Eligibility: Eligible
• U.S. Citizenship Required? Yes

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. 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).