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.
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!
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.
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✨ Celebrating a standout retention milestone: 75% of our 2025 hires are not only still with us — they’re thriving. 📈
This success reflects a culture built on growth, support, and real impact. 🙌 We’re grateful for a team that shows up, levels up, and makes a difference every day.
👉 Curious about who we are and how we work? Reach out today — DM us or contact the team to learn more about our company and culture. 🤝💬
✨ Your next career move? It might just be on one of these sticky notes!
🔥 Check out this week’s hottest roles — they’re going fast!
If any of these are calling your name, let’s get you connected. 💼🚀 Reach out today!
It’s Monday and we’re feeling lucky… are you!? 🍀✨
Because you’re in luck — we’re hiring!
At Cornerstone Defense, we’re not just filling roles… we’re building something big. 🚀 As an ever-growing force in the GovCon space, we’re leaning into the future — especially when it comes to AI, innovation, and staying ahead of what’s next. The industry is evolving fast, and we’re making sure we’re not just keeping up… we’re on the radar. 👀
If you’re cleared, motivated, and ready to be part of a team that actually sees you as more than just a number — this is your moment.
Don’t miss out on what we’re building.
Let’s make your next move your best one yet. 💼
📩 Reach out to us to learn more about our open roles and what makes Cornerstone Defense different.
AI is officially part of many of our corporate lives — but with so much noise, it can be overwhelming to ascertain what the real everyday applications actually look like. 👨🏻💻💻⌨️
In our new AI Spotlight Series, we’re highlighting how our team uses AI to streamline workflows, save time, and make meaningful impact in day‑to‑day tasks.
Today’s spotlight comes from John Santmyer, one of our recruiters. 👉 Swipe through to see how AI‑powered automation inside our CRM helps John quickly identify top candidates, re‑engage overlooked talent, and match people to open roles faster than ever.
Have your own AI use case? Drop it in the comments, or let us know if John’s experience matches how you’re using AI in your work.
We’re Hiring, April Fools’ edition! 🤣🎊🎈 There are 10, silly edits from the first photo to the second. Can you spot them all? If you think you’ve got it, shoot us a DM and tell us what you think they are (so you don’t share the answers!) and we’ll put you in a raffle for a fun, Cornerstone branded prize. 😉 But most importantly — did you know, as always . . . WE’RE HIRING! 👷🏻♀️👩🏻⚕️🧑🏻🏭
