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Information System Security Officer (ISSO)

Employment Type: Full-Time, Mid-Level

Department: Administrative and Logistics Support

As a FSR ISSO, you will be embedded on-site with U.S. Government customers to ensure the secure, compliant operation of a production-grade data and application platform used in mission-critical environments. You will serve as the primary authority for system security and compliance-working hands-on with live systems while partnering closely with engineers, operators, and customer security teams.

CGS brings motivated, highly skilled, and creative people together to solve the government's most dynamic problems with cutting-edge technology. To carry out our mission, we are seeking candidates who are excited to contribute to government innovation, appreciate collaboration, and can anticipate the needs of others. Here at CGS, we offer an environment in which our employees feel supported, and we encourage professional growth through various learning opportunities.

Skills and attributes for success:

• Act as the primary on-site point of contact for security and compliance requirements across one or more U.S. Government customers.
• Support system accreditation and authorization activities using frameworks such as RMF or DIACAP.
• Collaborate with software, systems, and field engineers to ensure required security controls, configurations, and policies are correctly implemented.
• Analyze deployed software implementations and assess alignment with applicable security requirements.
• Build, standardize, and maintain security documentation, including SSPs, POA&Ms, control narratives, and supporting artifacts.
• Generate, validate, and organize evidence of compliance once security settings are applied.
• Assemble accreditation artifacts into a structured, auditable repository.
• Support audits, assessments, and ongoing compliance activities throughout the system lifecycle.
• Maintain the ongoing security and trust of customers through hands-on system access and coordination with engineering and operations teams.
• Support software operating across AWS, Azure, on-premises, and at multiple classification levels.
• Operate in environments where the platform, threat landscape, and operational needs are continuously evolving.

Qualifications:

• Background in systems administration, software development, systems engineering, or deep familiarity with Linux-based systems.
• Experience accrediting IT systems against U.S. Government standards such as NIST SP 800-53, CNSSI 1253, and DISA STIGs.
• Hands-on experience supporting accreditation using eMASS or Xacta.
• Experience collaborating with engineering teams to implement and validate security configurations.
• Understanding of configuration management and automation tools (e.g., Puppet, Terraform, CloudFormation, Chef, Ansible).
• Comfort using version control systems such as Git.
• Ability to independently use vulnerability scanning tools such as Nessus and OpenSCAP.
• Experience working in cloud and on-premises environments, including AWS.
• Strong ability to produce clear, concise technical documentation, stay organized, and maintain attention to detail.
• Curiosity, critical thinking, and the ability to evaluate real-world implementations against formal security requirements.
• Active TS/SCI Clearance or Eligibility

Our Commitment:

Contact Government Services (CGS) strives to simplify and enhance government bureaucracy through the optimization of human, technical, and financial resources. We combine cutting-edge technology with world-class personnel to deliver customized solutions that fit our client's specific needs. We are committed to solving the most challenging and dynamic problems.

For the past nine years, we've been growing our government-contracting portfolio, and along the way, we've created valuable partnerships by demonstrating a commitment to honesty, professionalism, and quality work.

Here at CGS we value honesty through hard work and self-awareness, professionalism in all we do, and to deliver the best quality to our consumers mending those relations for years to come.

We care about our employees. Therefore, we offer a comprehensive benefits package.

• Health, Dental, and Vision
• Life Insurance
• 401k
• Flexible Spending Account (Health, Dependent Care, and Commuter)
• Paid Time Off and Observance of State/Federal Holidays

Contact Government Services, LLC is an Equal Opportunity Employer. Applicants will be considered without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Join our team and become part of government innovation!

Explore additional job opportunities with CGS on our Job Board:

https://cgsfederal.com/join-our-team/

For more information about CGS please visit: https://www.cgsfederal.com or contact:

Email: [email protected]

$120,000 - $200,000 a year

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.