WELCOME TO

Cornerstone

About Us

Cornerstone Defense LLC is a Small Business servicing the Intelligence, Defense, and Space communities of the U.S. Government. Cornerstone Defense specializes in cloud architecture, enterprise engineering, systems and network engineering, systems and network security, and application and software development. We use these foundational technology areas to deliver solutions for data analytics, cyber, and space/mission operations, customized to meet mission requirements. We are headquartered in Herndon, VA, with employees working across the U.S including DC, MD, CO, UT, NM, HI, and CA. At Cornerstone Defense, you’ll find a partner that values strong relationships, excellence, and teamwork. Our team is a network of professionals who are dedicated to providing agile, secure, and efficient solutions to support mission success. With Cornerstone Defense, you’re not just choosing a service provider, but a committed, steadfast team with a culture designed to excel.

Vision & Mission

Meet The Team

Reilly Leonard

Chief Operating Officer

Reilly Leonard

Chief Operating Officer

Patrick Palmer

Chief Executive Officer

Patrick Palmer

Chief Executive Officer

Brian Sammons

Chief Financial Officer

Brian Sammons

Chief Financial Officer

Darcelle Wilson

VP of Human Resources

Darcelle Wilson

VP of Human Resources

Brandon Altmann

Chief Growth Officer

Brandon Altmann

Chief Growth Officer

Michelle Allen

Director of Systems and Security, FSO

Michelle Allen

Director of Systems and Security, FSO

Virginia Blair

Director of Marketing & Operations

Virginia Blair

Director of Marketing & Operations

Kaitlin Krywy

Managing Director, Aerospace & Defense

Kaitlin Krywy

Managing Director, Aerospace & Defense

Sean Wentz

Managing Director, MPO

Sean Wentz

Managing Director, MPO

WHERE CAN WE HELP?

To find out more information on where we can help you, services we provide,

joining or partnering with our team, please select one of the links below!

WHAT WE DO

We bring together a unique blend of cutting-edge capabilities, specialized expertise, and a remarkable company culture that focuses on the recruitment and retention of highly-sought-after employees.

Learn More

WORK WITH US

Search through all of our open positions.

Learn More

GET IN TOUCH

Contact Us
  • Virginia
    13454 Sunrise Valley Drive, Suite 100
    Herndon, VA 20171
    Maryland
    2288 Blue Water Blvd, Suite 330
    Odenton, MD 21113
  • eFAX
    443.769.1559
  • Phone
    703.691.5100
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We are so grateful for our incredible volunteers who showed up bright and early at 6:30AM last Saturday to support Loudoun Wildlife Conservancy's Fall Native Plant Sale! Thanks for having us Loudoun Wildlife, and for all the great things you do for the local community and environment. To learn more about Loudoun Wildlife's mission, or how to get involved with their volunteer efforts, check out their website today at loudounwildlife.org/ . #CommunitySupport #VolunteeringMatters #NativePlants #CornerstoneCares ... See MoreSee Less

We are so grateful for our incredible volunteers who showed up bright and early at 6:30AM last Saturday to support Loudoun Wildlife Conservancys Fall Native Plant Sale! Thanks for having us Loudoun Wildlife, and for all the great things you do for the local community and environment. To learn more about Loudoun Wildlifes mission, or how to get involved with their volunteer efforts, check out their website today at https://loudounwildlife.org/ . #CommunitySupport #VolunteeringMatters #NativePlants #CornerstoneCaresImage attachmentImage attachment+1Image attachment

Today, as we remember the events of September 11, 2001, we honor the courage and resilience of the countless individuals who responded in the face of unimaginable adversity. The selfless bravery of first responders, the dedication of our military, and the unity of our nation stand as a testament to the strength of the American spirit. We will never forget! #911 #memorial #neverforget ... See MoreSee Less

Today, as we remember the events of September 11, 2001, we honor the courage and resilience of the countless individuals who responded in the face of unimaginable adversity. The selfless bravery of first responders, the dedication of our military, and the unity of our nation stand as a testament to the strength of the American spirit. We will never forget! #911 #memorial #neverforget

We’re looking for someone who may be interested in an Information Technology SME position for the Bethesda, MD area!! 🌟
 
Seeking a strategic, organized, and proactive Information Technology (IT) subject matter expert (SME) and thought leader with expertise in technical areas, specializing in Cloud, Enterprise Architecture, and associated platforms and tools.
As an IT SME, you will serve as a trusted technical advisor to a non-technical customer who is able to call balls and strikes in meetings with other technical
personnel for the customer.
 
Your responsibilities will include the following:
• Providing technical expertise in creating, updating, maintaining, and visualizing software architecture to include data
• Providing technical documentation to support the architecture of the portfolio of projects to include Concept of Operations (CONOPs)
• Serving as a technical liaison with regard to system architecture that focuses on performance, availability, redundancy, data protection, and information security
• Collaborating with customers to evaluate mission drivers, identify challenges, define mitigation strategies, assess applications, develop transition plans, and develop business cases in support of Cloud and other initiatives
• Providing technical knowledge and analysis of highly specialized applications and operational environments, high-level systems analysis, design, integration, documentation, and implementation advice on exceptionally complex problems that need extensive knowledge of the subject matter for effective implementation
• Assisting the customer with technical oversight of the Service Provider(s) for the portfolio of projects
• Providing technical leadership for the integration of IT requirements, design, and technology
• Interacting with the Government regarding Systems Engineering IT technical considerations and for associated problems, issues, or conflicts
#apply #newjob #opportunity
... See MoreSee Less

We’re looking for someone who may be interested in an Information Technology SME position for the Bethesda, MD area!! 🌟
 
Seeking a strategic, organized, and proactive Information Technology (IT) subject matter expert (SME) and thought leader with expertise in technical areas, specializing in Cloud, Enterprise Architecture, and associated platforms and tools.
As an IT SME, you will serve as a trusted technical advisor to a non-technical customer who is able to call balls and strikes in meetings with other technical
personnel for the customer.
 
Your responsibilities will include the following:
• Providing technical expertise in creating, updating, maintaining, and visualizing software architecture to include data
• Providing technical documentation to support the architecture of the portfolio of projects to include Concept of Operations (CONOPs)
• Serving as a technical liaison with regard to system architecture that focuses on performance, availability, redundancy, data protection, and information security
• Collaborating with customers to evaluate mission drivers, identify challenges, define mitigation strategies, assess applications, develop transition plans, and develop business cases in support of Cloud and other initiatives
• Providing technical knowledge and analysis of highly specialized applications and operational environments, high-level systems analysis, design, integration, documentation, and implementation advice on exceptionally complex problems that need extensive knowledge of the subject matter for effective implementation
• Assisting the customer with technical oversight of the Service Provider(s) for the portfolio of projects
• Providing technical leadership for the integration of IT requirements, design, and technology
• Interacting with the Government regarding Systems Engineering IT technical considerations and for associated problems, issues, or conflicts
#apply #newjob #opportunity

HOT JOB ALERT!!! 🔥🔥🔥 This hybrid schedule position for a Sr. Red Hat Consultant (OpenShift) in San Antonio, Texas is a great opportunity. Reach out to us ASAP to learn more. We'd love to see your resume! Job Description, below, or head to the job posting to apply.

The selected candidate will join an existing team of Red Hat engineers directly supporting the customer on-site in San Antonio, Texas. This team is responsible for architecting, integrating, and supporting Red Hat products across the customer’s enterprise.
Specifically, a candidate selected for this position is expected to:
1. Be responsible for planning, organizing and providing technical leadership to small to medium sized project teams while also ensuring the quality of Customer deliverables;
2. Perform as a subject matter expert in one or more Red Hat technologies and build a broader expertise in a multiple Red Hat products and solution offerings; and
3. Provide architectural design and direction for routinely executed solutions to include metrics for system performance, sizing requirements and assumptions, and implementing system development methodologies/processes, security policies and supports transition planning.

www.linkedin.com/jobs/view/4014591916/
... See MoreSee Less

HOT JOB ALERT!!! 🔥🔥🔥 This hybrid schedule position for a Sr. Red Hat Consultant (OpenShift) in San Antonio, Texas is a great opportunity. Reach out to us ASAP to learn more. Wed love to see your resume! Job Description, below, or head to the job posting to apply.

The selected candidate will join an existing team of Red Hat engineers directly supporting the customer on-site in San Antonio, Texas. This team is responsible for architecting, integrating, and supporting Red Hat products across the customer’s enterprise.
 Specifically, a candidate selected for this position is expected to:
 1. Be responsible for planning, organizing and providing technical leadership to small to medium sized project teams while also ensuring the quality of Customer deliverables;
 2. Perform as a subject matter expert in one or more Red Hat technologies and build a broader expertise in a multiple Red Hat products and solution offerings; and
 3. Provide architectural design and direction for routinely executed solutions to include metrics for system performance, sizing requirements and assumptions, and implementing system development methodologies/processes, security policies and supports transition planning.

https://www.linkedin.com/jobs/view/4014591916/

Happy Labor Day! And as always, thank you to our Cornerstone Defense employees and the hard work each of them does for our team and our great country. What are you doing for your day off? Whatever it is . . . you deserve it ! ... See MoreSee Less

Happy Labor Day! And as always, thank you to our Cornerstone Defense employees and the hard work each of them does for our team and our great country. What are you doing for your day off? Whatever it is . . . you deserve it !
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