Full-Time

Information Systems Security Engineer

Isse

Posted on 8/14/2025

CACI

CACI

10,001+ employees

Provides government contracting technology and services

Compensation Overview

$75.2k - $158.1k/yr

Hampton, VA, USA + 2 more

More locations: Bedford, MA, USA | Warner Robins, GA, USA

Hybrid

US Top Secret Clearance Required

Category
IT & Security (1)
Required Skills
Risk Management
Requirements
  • Active TS/SCI security clearance.
  • DoD Directive 8570 IAT II certification (Security+ CE or equivalent). CASP or GSLC preferred.
  • Bachelor’s Degree or higher in computer engineering or in a field related to the computer engineering or computer science disciplines.
  • 3-10 years of RMF & ISSO experience, or an associate’s degree and 4 years of RMF & ISSO experience.
  • Extensive experience in the use of Xacta 360 IA Manager to create System Security Plans (SSP).
  • Working knowledge of Intelligence Community Information Assurance policies and regulations and how they relate to the assessment and authorization process.
  • Experience authoring and maintaining systems security documentation, including documentation of security mitigations and successful completion of the ICD 503 accreditation process.
  • Experience navigating the security and accreditation process to include Assessment & Authorization (A&A) of an IT system to Authority to Operate (ATO).
  • Knowledge and experience in generating appropriate security documentation to receive proper accreditation and correcting security shortfalls as they are identified through agency-sponsored reviews.
  • Experience with quality data collection techniques.
  • Specific knowledge of AF DCGS RMF processes.
Responsibilities
  • Provide expert-level security support and guidance to engineering and technical IT-related activities within the organization.
  • Continuously monitor all alert queues, triage security alerts, and conduct incident response and remediation efforts.
  • Provide the technical support to maintain the confidentiality, integrity, and availability of the AF DCGS.
  • Manage the processing of all organizational efforts through the risk management cycle, including closely coordinating and tracking risks, accreditation status, and reporting status across project teams.
  • Work with SCAs and associated teams to improve the security of AF systems by reducing risk postures through the identification of risk reductions and mitigations.
  • Perform Test and Evaluation (T&E); interview system SMEs; validate physical controls; HW/SW lists; topology and TPPS. In addition, document and provide on-site assessments.
  • Perform a QA review of the risk scores and risk assessment reports.
  • Ensure processes, enhancements, and sustainment activities are following NIST 800-53.
  • Provide engineering services to support testing of SW that is enhanced and subsequently integrated into the AF DCGS as part of the sustainment lifecycle.
  • Develop test scripts and conduct testing for the applications sustained within the AF DCGS database. Operational Testing shall ensure the system meets the operational needs of the user community. Throughout test events, the system’s information assurance and interoperability shall be assessed.
  • Identify information assurance control impacts and likelihoods.
  • Prepare a system risk rating and determine risk reduction measures based on information assurance control subject areas.
Desired Qualifications
  • Experience in at least two (2) of the following areas:
  • Knowledge of Xacta 360 and Xacta.io Governance, Risk, and Compliance (GRC) automation software.
  • Hardware/software security implementation, to include Secure Technical Implementation Guides (STIGs), Secure Content Automation Protocol (SCAP), Evaluate-STIG, ACAS/Nessus Vulnerability and Compliance Scanning tools.
  • Air Force Intelligence Community (AF IC) Policies, Plans, and Procedures.
  • ITIL v4 Foundation certification.

CACI International Inc. provides technology and professional services to U.S. government clients, focusing on national security and modernization. It earns most of its revenue through long-term government contracts that fund engineering, intelligence, logistics, cybersecurity, data analytics, and IT solutions for defense, intelligence, and federal civilian agencies. Its products and services work by delivering specialized technical expertise, secure systems, and mission-support capabilities that help agencies run operations more efficiently and securely. CACI differentiates itself through its deep domain knowledge in national security, a proven track record of delivering high-quality, reliable solutions, and a skilled workforce that can execute complex, long-duration contracts. The company’s goal is to be a trusted partner for government modernization needs by providing advanced technology solutions and mission support that enhance national security and operational effectiveness.

Company Size

10,001+

Company Stage

IPO

Headquarters

Reston, Virginia

Founded

1962

Simplify Jobs

Simplify's Take

What believers are saying

  • Q3 FY2026 revenue hit $2.4B, up 8.5%, with raised FY guidance to $9.55B.
  • $306M DLA Global Model and $287M Army contracts boost backlog.
  • ARKA Group acquisition and AWS MSP status expand high-growth capabilities.

What critics are saying

  • Leidos captures 15% more DoD IT awards in Q1 2026 via AI scale.
  • 95% government revenue faces FY2027 DoD sequestration cuts of $1.5-2B.
  • DoD Audit Act bars CACI from 40% awards by 2028 on compliance failure.

What makes CACI unique

  • CACI delivers optical communications for NASA's Artemis II mission.
  • CACI provides specialized C4ISR and cyber solutions to US defense agencies.
  • CACI's 63-year legacy in simulation and IT integration sets it apart.

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Benefits

Health Insurance

Flexible Work Hours

401(k) Retirement Plan

401(k) Company Match

Wellness Program

Company News

Yahoo Finance
Apr 10th, 2026
CACI wins $287M Army tech contract to modernize personnel and pay system

CACI International has secured a seven-year $287 million contract to modernise the US Army's Integrated Personnel and Pay System-Army, supporting over one million users. The company also confirmed its optical communications hardware played a central role in NASA's Artemis II mission. The defence technology contractor is scheduled to release Q3 FY2026 earnings on 22 April, with consensus expecting mid-single to low-double digit revenue and earnings growth. Analysts project CACI could reach $10.9 billion in revenue and approximately $684 million in earnings by 2028. The contract reinforces CACI's position as a federal technology partner in defence and space programmes, though the company remains heavily reliant on US government budgets. The investment narrative centres on execution of large, high-value contracts whilst managing federal spending exposure.

Yahoo Finance
Apr 9th, 2026
CACI delivers laser comms and sensing tech to NASA's Artemis II crewed Moon mission

CACI International has contributed optical communications and sensing technology to NASA's Artemis II mission, the first crewed flight of the Space Launch System rocket and Orion spacecraft. The company developed an optical communications modem module in partnership with MIT Lincoln Laboratory, integrated into the Orion Artemis II Optical Communications System payload. The O2O system successfully delivered high-definition video and data from the lunar vicinity to Earth via laser link, marking a milestone in deep-space communications. Through its acquisition of ARKA Group, CACI also supplied cryogenic-level sensing technology for the SLS rocket, supporting propellant-level measurement and engine shutdown determination during ascent. CACI's hardware is developed across multiple US locations, including Danbury, Connecticut, and Florham Park, New Jersey.

CACI International Inc
Mar 13th, 2026
CACI Closes $500 Million Offering of 6.375% Senior Notes

CACI International Inc ( NYSE: CACI ) today announced it closed a $500 million offering of 6.375% unsecured senior notes due in 2033 (the “notes”). The notes will be issued as part of the same series as CACI’s 6.375% senior notes due 2033 originally issued in June 2025. CACI intends to use the net proceeds from the offering to repay certain indebtedness under its revolving credit facility that was incurred to pay a portion of the purchase price of its acquisition of ARKA Group L.P. and costs and expenses related thereto. About CACI CACI International Inc (NYSE: CACI) is a national security company with 27,000 talented employees who are Ever Vigilant in expanding the limits of national security. We ensure our customers’ success by delivering differentiated technology and distinctive expertise to accelerate innovation, drive speed and efficiency, and rapidly anticipate and eliminate threats. Our culture drives our success and earns us recognition as a Fortune World's Most Admired

Mammoth Times
Mar 12th, 2026
CACI closes $500M bond offering to fund ARKA Group acquisition debt repayment

CACI International has closed a $500 million offering of 6.375% unsecured senior notes due in 2033. The notes will be issued as part of the same series as CACI's 6.375% senior notes originally issued in June 2025. The company intends to use the net proceeds to repay indebtedness under its revolving credit facility, which was incurred to finance its acquisition of ARKA Group L.P. and related costs. CACI is a national security company with 27,000 employees. The firm is a member of the Fortune 500, the Russell 1000 Index and the S&P MidCap 400 Index.

Yahoo Finance
Mar 11th, 2026
CACI surges 180% in 5 years on strong EPS growth, but weak backlog points to demand concerns

CACI International, a defence and intelligence solutions provider, has surged 180% over the past five years, reaching $630.12 per share and outperforming the S&P 500's 72.6% total return. The stock has gained 29.6% in the last six months. The company demonstrated solid long-term performance with revenue growing at 8.8% compound annual growth rate over five years. More impressively, earnings per share expanded at 14% annually, indicating improved profitability. However, CACI's backlog growth has been weak, averaging just 3.6% year-on-year over the last two years. This underwhelming performance suggests increasing competition may be challenging the company's ability to secure new orders. The stock currently trades at 20.6× forward price-to-earnings ratio.

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