WELCOME TO

Cornerstone

Careers at Cornerstone

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. We seek, hire, and cultivate the future leaders in technologies, management, and operations. Reach out and start a conversation about how you can be a part of the Cornerstone Defense Team!

EXPLORE OUR CURRENT OPENINGS

TOP 5 Reasons to join us!

1

Core Values

Our core values are honesty, integrity, professionalism, and fairness. These values are utilized with all employees, partners, and clients. When faced with tough decisions, we ask ourselves “what is the right move?” In an industry that is constantly changing, our core values are not something that Cornerstone Defense will ever compromise.

2

Committed

We have a binding promise to our employees to make sure that they are prepared to provide the best service to our clients. Cornerstone Defense is committed to taking a holistic view of our team, ensuring each employee is able to balance successfully supporting their customer’s mission as well as maintaining a healthy lifestyle.

3

Approach

We use a consultative approach to hiring, employment, and execution. We look for quality employees and identify the appropriate opportunities for them, not the other way around. Our employees are always our number one concern. We firmly believe that if we take care of our employees, business will follow.

4

Attention

We focus on the details of efficiently managing personnel and business. We are consistently looking for new and unique ways to show our employees that they are the most important asset within the company. We fully understand and manage the need for both the Esprit de Corp and professional training for every Cornerstone Defense employee.

5

Transparency

We make every effort to communicate all aspects of Cornerstone operations with our employees. Transparency is fundamental to the culture of our company. We firmly believe that establishing a diverse and inclusive environment creates the best possible outcome for our employees, our clients, and the missions we support.

Check us out on Glassdoor.

Connect with us

Find us on Social Media and keep up to date with job openings and the latest news!

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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Timecards might not be the highlight of your week… but at least we can laugh about it together. 😅 We rounded up some of the funniest “do your timecard” memes to give you a smile (and a nudge 😉).

✅ Don’t forget to get yours done!

👇 And just for fun — drop a comment and tell us which meme was your favorite. Let’s see which one gets the most votes!
... See MoreSee Less

Timecards might not be the highlight of your week… but at least we can laugh about it together. 😅 We rounded up some of the funniest “do your timecard” memes to give you a smile (and a nudge 😉).

✅ Don’t forget to get yours done!

👇 And just for fun — drop a comment and tell us which meme was your favorite. Let’s see which one gets the most votes!Image attachmentImage attachment+2Image attachment

🎬✨”Real people, real feelings, that’s it, that’s all I’m interested in,” is a line from the 2000 movie Almost Famous (have you seen it!?) But it also perfectly sums up working at Cornerstone Defense.

They’re not about fluff or corporate buzzwords — just a team of smart 💡, mission-driven 🚀 folks who actually like working together 😄 (and it shows).

Want in? 👀 Check out the job board 👉 (Link in Bio)
... See MoreSee Less

🎬✨”Real people, real feelings, that’s it, that’s all I’m interested in,” is a line from the 2000 movie Almost Famous (have you seen it!?) But it also perfectly sums up working at Cornerstone Defense.

They’re not about fluff or corporate buzzwords — just a team of smart 💡, mission-driven 🚀 folks who actually like working together 😄 (and it shows).

Want in? 👀 Check out the job board 👉 (Link in Bio)

🎉 What does fun mean to us at Cornerstone Defense?
 
It means stronger teams.
It means better ideas.
It means we actually like coming to work.
 
These highlights come from our Q2 Company Newsletter — The Fun Edition!
👇 Featuring thoughts from across our leadership team:
✔️ CEO Pat on how fun is necessary for mental health
✔️ Reilly COO on joy in helping others
✔️ Ginny, Marketing Guru on how laughter and fun are contagious
✔️ Darcelle on the fun of witnessing employees’ growth
 
At Cornerstone, we believe culture isn’t just a buzzword—it’s something you build, live, and enjoy every day. And fun? That’s our not-so-secret sauce.
 
💬 How do you bring fun into your workday? We’d love to hear it!
... See MoreSee Less

🎉 What does fun mean to us at Cornerstone Defense?
 
It means stronger teams.
It means better ideas.
It means we actually like coming to work.
 
These highlights come from our Q2 Company Newsletter — The Fun Edition!
👇 Featuring thoughts from across our leadership team:
✔️ CEO Pat on how fun is necessary for mental health
✔️ Reilly COO on joy in helping others
✔️ Ginny, Marketing Guru on how laughter and fun are contagious
✔️ Darcelle on the fun of witnessing employees’ growth
 
At Cornerstone, we believe culture isn’t just a buzzword—it’s something you build, live, and enjoy every day. And fun? That’s our not-so-secret sauce.
 
💬 How do you bring fun into your workday? We’d love to hear it!Image attachmentImage attachment+1Image attachment

📸 Throwback to our old conference room — look closely at the whiteboard in the top right corner. 👀 See it?
 
“It has to make sense!”
 
That’s a phrase our COO wrote down one day, one of his favorites, and it just... stuck. For years, it lived on that whiteboard. Over time, it became more than a sticky note of wisdom — it became part of how we work, how we make decisions, and how we collaborate.
 
Whether it’s a big strategic move or a day-to-day workflow, we’ve learned: clarity matters, alignment matters — and yes, it has to make sense.
 
🧠💬 We’re curious: What does “it has to make sense” mean to YOU in your work life? When do you use this phrase, or when do you wish others would? Share your take in the comments 👇
... See MoreSee Less

📸 Throwback to our old conference room — look closely at the whiteboard in the top right corner. 👀 See it?
 
“It has to make sense!”
 
That’s a phrase our COO wrote down one day, one of his favorites, and it just... stuck. For years, it lived on that whiteboard. Over time, it became more than a sticky note of wisdom — it became part of how we work, how we make decisions, and how we collaborate.
 
Whether it’s a big strategic move or a day-to-day workflow, we’ve learned: clarity matters, alignment matters — and yes, it has to make sense.
 
🧠💬 We’re curious: What does “it has to make sense” mean to YOU in your work life? When do you use this phrase, or when do you wish others would? Share your take in the comments 👇

🎉 GIVEAWAY TIME! 🎉
Cornerstone Defense is leveling up your summer ☀️

Whether you’re chillin’ lakeside, fireside, or curbside—we’ve got the ultimate cooler slash backpack slash sit-upon chair ready for the ride. 🍻🎒🪑

We’re giving away 5 of these Cornerstone coolers and it’s easy to enter:
👇👇👇
✅ Comment below
✅ Tag a friend who would love our vibe (or our jobs 👀)
🕒 We’ll randomly select 5 winners 24 hours from now—and slide into your DMs to coordinate delivery!

This is your sign to sit back, sip cold, and rep a company where people actually matter. 💬
... See MoreSee Less

🎉 GIVEAWAY TIME! 🎉
Cornerstone Defense is leveling up your summer ☀️

 Whether you’re chillin’ lakeside, fireside, or curbside—we’ve got the ultimate cooler slash backpack slash sit-upon chair ready for the ride. 🍻🎒🪑

We’re giving away 5 of these Cornerstone coolers and it’s easy to enter:
 👇👇👇
 ✅ Comment below
 ✅ Tag a friend who would love our vibe (or our jobs 👀)
🕒 We’ll randomly select 5 winners 24 hours from now—and slide into your DMs to coordinate delivery!

This is your sign to sit back, sip cold, and rep a company where people actually matter. 💬
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