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CACI International Endpoint Security Engineers (Levels 1, 2, 3) in Springfield, Virginia

Endpoint Security Engineers (Levels 1, 2, 3)

Job Category: Engineering

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Local

Are you passionate about working with leading-edge technologies, on high performing teams, and have a desire to learn valuable skills and experiences that can propel your career?

CACI's Transport & Cybersecurity Services (TCS) program is actively seeking TS/SCI cleared Endpoint Security Engineers to join our growing team! We are currently hiring for several openings, across multiple experience levels, and seeking mission-focused cyber security engineering professionals to join our talented team of Endpoint Engineers. These positions can be based out of either Springfield, VA (or) St. Louis, MO.

TCS offers a long-term, CACI prime contract opportunity supporting the National Geospatial-Intelligence Agency’s (NGA) GEOINT mission. Our team of talented Network and Cybersecurity professionals help design, develop, procure, implement, operate/sustain, and enhance NGA networks and cybersecurity posture in support of national security.

For additional information and a list of current openings, please visit the TCS Jobs page on CACI Careers site:

More About These Roles:

As a member of the TCS Endpoint Security Services (ESS) team, you will support our Intelligence Community customer’s various endpoint security platforms. As a member of our ESS team, you will have the opportunity to make a considerable impact through maintaining Enterprise Cyber Security Engineering requirements in utilizing all or some of the following tools: HBSS , Carbon Black Response/Protection , Microsoft ATA , Tanium

Positions on this contract require a TS/SCI clearance (current) in order to be eligible for hire, with the ability to successfully pass a government polygraph as a post-hire requirement.

What You’ll Get to Do:

  • Implement and apply technologies, processes, and practices designed to protect networks, devices, programs, and data from malicious attack, damage, or unauthorized access.

  • Provide engineering and sustainment support for Tanium platform

  • Establish computing environment by designing system configuration, directing system installation, and defining, documenting, and enforcing system standards

  • Provide specific, detailed information for hardware and software selection, implementation techniques, and tools for the most efficient solution to meet business needs, including present and future capacity requirements

  • Configure and install various security products utilizing Linux OS

  • Work with both the software vendor and the customer to research, analyze, and implement enterprise-wide security solutions/capabilities/enhancements to support customer business/mission goals and objectives

  • Assist with design, analysis, testing and implementation of state-of-the-art secure architectures

  • Oversee security infrastructure sustainment, maintenance, and advanced configuration (policy management, database administration and security management tools)

  • Oversee the reporting, documentation and investigation of all security related incidents; lead the development and implementation of corrective measures

You’ll Bring These Qualifications:


  • TS/SCI (current)

  • Must be able to successfully pass/maintain a U.S. Government Polygraph (post-hire)

Education / Experience:

  • BA/BS Degree and between Two (2) and Eight (8) years of relative cyber security engineering experience. (Additional experience may be considered in lieu of a degree.)


  • DoD 8140.01 and DoD 8570.01-M IAT Level II compliant certification (current)

  • Must be able to successfully obtain/maintain CSSP Infrastructure Support certification within 120 days of start date (post-hire)

Skills & Technologies:

  • Proficient with maintaining Enterprise Cyber Security Engineering requirements utilizing all or some of the following tools: HBSS , Carbon Black Response/Protection , Microsoft ATA , Tanium

  • Administering applications in a Linux environment

  • Supporting large-scale enterprise/global networks in a high-paced, diverse environment

  • DoD Architecture Framework and other key DoD network architecture and strategic planning instructions

  • Planning, design, and evaluation of security systems and architectures

What We Can Offer You:

  • We’ve been named a Best Place to Work by the Washington Post.

  • Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives.

  • We offer competitive benefits and learning and development opportunities.

  • We are mission-oriented and ever vigilant in aligning our solutions with the nation’s highest priorities.

  • For over 55 years, the principles of CACI’s unique, character-based culture have been the driving force behind our success.


Company Overview: At CACI, you will have the opportunity to make an immediate impact by providing information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. CACI is an Equal Opportunity Employer – Females/Minorities/Protected Veterans/Individuals with Disabilities.

As a federal contractor, CACI is subject to any federal vaccine mandates or other customer vaccination requirements. All new hires are required to report their vaccination status.