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.
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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

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
Globe
Comments Box SVG iconsUsed for the like, share, comment, and reaction icons

Back with our β€œguess the local spot!” Series … does this backdrop look familiar to you!? If so, drop us a comment and tell us what you love about this spot. And hey while you’re here …we’re hiring!!! πŸ˜‚πŸ€— Check out the JD, below, for one of our hottest jobs right now. πŸ”₯


Title: ELM Technical Manager
Location: Annapolis Junction, MD
Salary Range: $200 - $220K

This role requires a strong functional knowledge of PeopleSoft ELM and its as well as the following diverse skill sets:

Excellent interpersonal skills to interact with customers, executive leaders, and team members.

Ability to assess the high-level architectural design, research potential implementation road maps, and conduct feasibility assessments.

Ability to translate technical requirements reflecting customers desired outcomes helping developers produce the best product possible

Drive towards customer buy in and drive development processes when needed
Excellent analytical and creative problem-solving skills for design, creation and testing of software.

Ability to work independently and as part of a team.

Deep functional knowledge across HCM, Financials and Education applications.
Specifically with the PeopleSoft ecosystem with strong experience to make recommendations for low cost and long-term maintenance

Deep reporting background and expertise with understanding of various technologies spanning vendors. Understanding data warehouse theory and concepts. Work with end users to generate reporting artifacts, as well as explain concepts and help users with little or no technical background.
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Back with our β€œgue

No matter which copywriter you agree with πŸ˜‚ the core mission stays the same. πŸš€ The truth is, we have people working across a ton of different office/sites, and they represent every vibe imaginable. We don’t have a rigid corporate mold. We like real people, down-to-earth people, and tell-the-truth-straight-and-quick people. πŸ‘₯

If you want to do high-impact national security work alongside a team that keeps it 100% genuine, we have a place for you. βœ… We’re hiring across cyber, IT infrastructure, and systems engineering. Check out our open roles today!
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No matter which copy

When your team loves what they do, it shows! ✨ We recently surprised an employee with a spot bonus after they received fantastic feedback from their on-site management team.
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Their reaction? β€œIt’s cool to be recognized for having so much fun. I love my job.” πŸ₯Ήβ€οΈ
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Moments like this are exactly why we do what we do. We believe hard work and a great attitude deserve immediate recognition. That’s why our spot bonus program rewards:
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πŸ‘₯ Employee Referrals – Bringing other rockstars to the team.
πŸ—£οΈ Client & Customer Recommendations – Going above and beyond for our partners.
πŸ‘ Management Praise – Catching the eyes of leadership.
🎈 One-Off Wins – Celebrating extra-mile efforts whenever and wherever we can!
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A huge thank you to our entire team for making our work so rewarding every single day! πŸ™Œ
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When your team loves

🚨 GIVEAWAY ALERT! 🚨 We’ve got some new cornerstone mascots around the office and they really brighten up the day! ✨ Want one to level up your desk or workspace? Here is your chance to win!
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We are giving away a matching set of our brand-new, ultra-cute office mascots to one lucky winner and their bestie! πŸ‘―β€β™‚οΈ Whether you need a splash of magic or some out-of-this-world energy, we’ve got you covered.
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Pick your squad leader from these pictures:
πŸ§œβ€β™€οΈ The Magical Mermaid – For those deep-dive focus sessions
🐯 The Feisty Tiger – To bring out your fierce, go-getter energy
πŸ‘½ The Quirky Alien – For out-of-this-world creative ideas
πŸ¦„ The Majestic Unicorn – To add a little sparkle to your daily tasks
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πŸ‘‡ HOW TO ENTER πŸ‘‡
1️⃣ COMMENT your favorite mascot from these pictures (Mermaid, Tiger, Alien, or Unicorn).
2️⃣ TAG a friend who needs to brighten up their workspace, too!
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That’s it! πŸŽ‰ If your name is drawn, we’ll send your favorite mascot straight to your desk, AND one over to your tagged friend, too! 🎁
Can’t wait to see if you win? You can also head over to our Swag Store right now to order the whole crew and build your ultimate desk lineup! πŸ›οΈβœ¨
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πŸ—“οΈ Contest ends on 9/14. Β Good luck! πŸš€
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✨ Lunch & Learn vibes! ✨
Our recruiting team gathered in the conference room today for a delicious lunch from one of our favorites β€” Chopsticks πŸ₯‘πŸ˜‹ β€” and an energizing training session led by our Recruiting Manager!
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We spent the afternoon diving into new AI capabilities within our CRM πŸ€–πŸ’‘. As we continue learning and adopting tools that help us move faster and work smarter, one thing remains non-negotiable: real human connection comes first. ❀️
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AI can help boost our efficiency, support our workflows, and streamline processes across recruiting and operations β€” but it will never replace the genuine conversations, meaningful outreach, and personal relationships our recruiters build every single day. 🌟
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At the end of the day, our people are our strength β€” and we’re excited to keep learning, growing, and connecting together. πŸ’¬πŸ€πŸ’™
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