Cyber Security/Information Assurance Engineer

CACI; Chantilly (VA); On-site; USD 110,000 - 170,000; Full time

Job summary

CACI is seeking a Cyber Security/Information Assurance Engineer to perform security control assessments according to NIST SP 800-53 and RMF, ensuring regulatory compliance for national security information systems. The role involves hands-on testing, BoE review, risk assessment, and collaboration with government agencies.

Responsibilities include preparing assessment reports, addressing vulnerabilities, and implementing protective measures. Up to 10% travel locally may be required.

Qualifications

• Bachelor's degree in cybersecurity, CS, IS, or CSEE.
• 2-5 years of hands-on information security experience.
• Knowledge of firewalls, VPNs, IDS/IPS, and endpoint protection.
• Proficiency in Linux, Windows, TCP/IP, and network architecture.
• Understanding of risk assessments, security frameworks, vulnerability management, and incident response.
• Familiarity with A&A decisions, NIST RMF/CSF, and SP 800-53/53A.

Responsibilities

• Evaluate Government customer systems against NIST SP 800-53/53A R4, RMF and other standards.
• Conduct hands-on security control testing, analyze BoE documentation and test results.
• Provide assessment of the severity of deficiencies discovered and recommend corrective actions.
• Conduct hands-on security testing leveraging tools and custom scripts and procedures.
• Execute vulnerability/compliance assessment tools and evaluate results.
• Participate in joint test teams to complete security assessment and adjudication.
• Coordinate with other program elements conducting security testing.
• Lead technical exchange meetings and document actions/results.
• Prepare security assessment reports with findings for AO.
• Maintain accountability to ensure integrity and confidentiality of the process.

Skills

2-5 years experience in information or

Education

Bachelor of Science in Cybersecurity/CS/IS/CSEE

Tools

Linux

Windows

TCP/IP

Network architecture

Firewalls

VPNs

IDS/IPS

Endpoint protection

A&A processes

Python

C++

Java

Bash

PowerShell

NIST CSF

RMF

NIST SP 800-53/53A

CNSS 1253

Job description

Job Details

Job Title: Cyber Security/Information Assurance Engineer

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI with Polygraph

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Local

The Opportunity

The Cyber Security/Information Assurance Engineer/Technician will function as a Security Control Assessor (SCA) following National Institute of Standards and Technology (NIST) Special Publication (SP) 800-53 and or 800-53A Revision 4 guidance and or procedures to conduct a comprehensive assessment of the management, operational, and technical security controls employed within or inherited by complex and diverse information systems to determine the overall effectiveness of the control implementation. The goal is to determine the extent to which the assigned security controls are implemented correctly, operating as intended and producing the desired outcome with respect to meeting the regulatory and or statutory security requirements for National Security Systems.

Responsibilities

• Evaluate Government customer systems against NIST SP 800 53/53A R4, 30, 37 and 39, RMF and other security standards and publications as well as Government customer defined security guidelines and regulations. Utilizing the customer assessment tracking system, Xacta-360. Function as an independent and unbiased advocate who provides evidence to validate the trustworthiness of the system for the designated Authorizing Official (AO).
• Conduct hands‑on security control testing, analyze Body of Evidence (BoE) documentation and test results, document risk and recommend countermeasures.
• Provide an assessment of the severity of weakens or deficiencies discovered in the information system and its environment of operation and recommend corrective actions to address identified vulnerabilities.
• Conduct hands‑on security testing leveraging commercial tools and custom developed scripts and procedures.
• Execute vulnerability/compliance assessment tools and evaluate results for systems undergoing security assessment.
• Participate in joint test teams with other customer organizations and or Government Agencies to complete security assessment and adjudication.
• Coordinate with other program elements conducting security testing.
• Actively participate in or lead technical exchange meetings and application review boards, documenting actions items/results of these events.
• Brief management, as needed, on the status of action items and/or results of activities.
• Prepare security assessment reports containing the results and findings form the assigned security control assessments.
• Provide documentation to the customer which describes all identified system risks, planned test procedures taken and test results.
• Provide enhancement capabilities and SOPs to assessment operations for execution and implementation.
• Maintain accountability to ensure integrity and confidentiality of the process.
• Responsible for implementing and applying technologies, processes, and practices designed to protect networks, devices, programs, and data from malicious attack, damage, or unauthorized access.
• Investigates network device and information security incidents to determine extent of compromise to national security information and automated information systems.

Required Qualifications

• Bachelor of Science in Cybersecurity, Computer Science, Information Systems, or Computer Systems Engineering
• 2 to 5 years of hands‑on experience in information security, network security, or systems engineering.
• Knowledge of firewalls, Virtual Private Networks (VPNs), Intrusion Detection/Prevention Systems (IDS/IPS), and endpoint protection.
• Proficiency in Linux, Windows, TCP/IP, and network architecture.
• Understanding of risk assessments, security frameworks, vulnerability management, and incident response.

Desired Qualifications

• Familiarity with conducting security assessments in support of accreditation and/or authorization (A&A) decisions.
• Experience writing scripts or code using Python, C++, Java, Bash, or PowerShell for automation and log analysis.
• Familiarity with National Institute of Standards and Technology (NIST) Cybersecurity Framework and National Institute of Standards and Technology (NIST) Risk Management Framework (RMF) requirements.
• Familiarity with National Institute of Standards and Technology (NIST) Special Publication (SP) 800-53 and or 800-53A Revision 4 as well as 800-30, 37 and 39.
• Familiarity with the Committee on National Security Systems (CNSS) Instruction No. 1253.
• Knowledge of Federal laws, regulations, policies, and ethics as they relate to cybersecurity.
• Knowledge of cyber defense and vulnerability assessment tools, including open-source tools, and their capabilities.
• Knowledge of cybersecurity principles and organizational requirements (relevant to confidentiality, inte