On-Site Information Security Lead for Government Systems

CGS Federal (Contact Government Services); Colorado Springs (CO); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Health, Dental, and Vision

Life Insurance

401k

Flexible Spending Account

Paid Time Off

Job summary

CGS Federal (Contact Government Services) is seeking a Mid-Level FSR ISSO to join on-site with U.S. Government customers, ensuring secure operation of a production-grade data and application platform in mission-critical environments.

The role serves as the primary authority for system security and compliance, working with engineers, operators, and customer security teams. A strong emphasis on accreditation, documentation, and hands-on security work is required.

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.

Responsibilities

• Serve 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.

Skills

On-site security lead

RMF/DIACAP accreditation

Collaboration with engineers

Security documentation

Evidence of compliance

Accreditation artifacts repo

Audits and assessments

Cloud and on-premises

TS/SCI clearance

Vulnerability scanning

Tools

Puppet

Terraform

CloudFormation

Chef

Ansible

Git

Nessus

OpenSCAP

Job description

CGS Federal (Contact Government Services) is seeking a Mid-Level FSR ISSO to join on-site with U.S. Government customers, ensuring secure operation of a production-grade data and application platform in mission-critical environments.

The role serves as the primary authority for system security and compliance, working with engineers, operators, and customer security teams. A strong emphasis on accreditation, documentation, and hands-on security work is required.