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Cornerstone Defense

60 Cornerstone Defense Security Engineer Jobs Hiring Near You

Cornerstone Defense

Platform Engineer

Colorado Springs, CO · On-site

$150K - $180K/yr

Job #3829 Software and Systems Security Engineer Colorado Springs, CO TS/SCI $150,000 - $180,000 ... security best practices for Linux systems Company Overview: Cornerstone Defense is the Employer of ...

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Infographic showing various Security Engineer job openings at Cornerstone Defense in the United States as of July 2026, with employment types broken down into 100% Contract. Highlights an 99% Physical, and 1% Remote job distribution.
Information Systems Security Engineer with Security Clearance

Information Systems Security Engineer with Security Clearance

Cornerstone Defense

Fairfax, VA • On-site

Contractor

Medical, Dental, Vision, Life, Retirement, PTO

Posted 22 days ago

Job description

Title: Information Systems Security Engineer Location: Tysons, VA *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation's toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don't look any further than Cornerstone Defense. Benefits Overview : Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services * Description: The Information Systems Security Engineer supports the client and the team in defining security requirements; advises on, executes and oversees cybersecurity, information assurance (IA) programs, authority to operate (ATO), accreditation and authorization (A&A), User Activity Monitoring (UAM), and system security plans. Responsibilities: * Lead for automated security testing efforts leveraging Sponsors enterprise scanning tools * Responsible for creation and delivery of the Monthly Vulnerability Scans * Responsible for creation and delivery of the Monthly Privileged Users and Admin report * Overall Lead for ensuring systems are secure by protecting data and ensuring need to know * Responsible for working with Tech team on creating any necessary POAMs * Helps PM with the Contract Security Plan * Works with PM and Sponsors Information System Security Manager and INFOSEC Program Council as necessary * Authors and maintains the programs System Security Plan (SSP) for A&A * Provides the required security education and plan to sponsor for the program * Authors and maintains the programs Automated Information Systems (AIS) Plan Required Skills: * 4-7 years' experience with: * Application security standards and processes * Accreditation and Authorization (A&A), including documentation, POAMs, and remediation * Application and data security requirements for authorities to develop and operation systems (ATD, ATO) such as encryption, role-based security, information assurance, and monitoring/auditing/reporting * Coordination with engineering team to implement security requirements * Agile / Scrum

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