Information System Security Officer (ISSO)
Arlington, VAAll locationsArlington, VAWashington, DC On-site
$120,000–$200,000 a yearJobFig found this opening at its original source and checks that it remains available.
About the role
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.
What you'll bring
- 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