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!
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.
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.
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.
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.
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.
Find us on Social Media and keep up to date with job openings and the latest news!
🎃👻 Happy Halloween from the Cornerstone Defense crew! We faced ghosts, ghouls, and GovCon horrors — and lived to tell the tale. Swipe through our AI-generated haunted house moments… if you dare 💀🕸️ #hauntedgovcon #halloween2025 #clearancerequired #cornerstonedefense #boocrew
🧩 Can you crack the code? We’re hiring—but we’re not just handing out the job title. Slide through the clues in our carousel and see if you can figure out what role we’re looking to fill.
🔍 Here’s what we can tell you:
• You’ll be working in a secure, mission-critical environment in Springfield, VA
• You’ll support Windows systems, cloud integrations, and classified networks
• You’ll need an active TS/SCI with CI Poly
• You’ll be part of a team that values precision, uptime, and collaboration
• You’ll troubleshoot, patch, and automate your way to operational excellence
💡 Bonus points if you’re fluent in PowerShell, know your way around AWS, and have a Security+ cert in your back pocket.
Think you’ve solved it? 🖱️ Swipe through the slides to confirm your guess. 📩 Ready to apply? Let’s talk.
#TechCareers #WindowsEngineer #TSSCIJobs #NowHiring #CyberCareers #GovTech #SpringfieldVAJobs #ClearanceJobs #SystemsEngineer #JoinOurTeam
“I’ve never seen a workplace where people are so happy!” 😊 That’s what a new team member recently said after a visit to our office — and honestly, we hear that a lot!
This quick hallway moment — just two coworkers laughing during the day-to-day routine — captures something real about our culture. At Cornerstone Defense, we believe that when you build a company on trust 🤝, purpose 🎯, and people-first values 💙, joy becomes part of the job.
We’re mission-driven 🚀, but we never lose sight of the human side of the work. Whether we’re solving complex national security challenges 🛡️ or just sharing a laugh between meetings 😂, we show up for each other—and it shows.
Want to know more about what it’s like to work at Cornerstone Defense? Visit our website today, fill out our contact form or shoot us a LinkedIn direct message. We’d love to hear from you!
#WorkCulture #CornerstoneDefense #HappyTeam #MissionDriven #PeopleFirst #LifeAtCornerstone
🎃👻 It may be spooky season… but the scariest thing of all? How many open roles we’re hiring for! 🕷️💼
Our haunted headquarters is decked out for Halloween, but behind the cobwebs and pumpkins, we’re on the hunt for top-tier talent. If you hold a TS/SCI with polygraph and you’re ready to level up your career, Cornerstone Defense wants to hear from you.
🧠 Cyber, cloud, data, and more — we’ve got roles that’ll make your resume scream (in a good way).
🔗 Apply now: cornerstonedefense.com
🚨 INTERN ALERT 🚨 We’re on the hunt for sharp minds and fresh energy. This summer, don’t just make coffee — make moves. 💼 Real projects. 💡 Real impact. 🎯 Real growth. Apply now ! 👉
Summer Intern - Cornerstone Defense
cornerstonedefense.com
Location: Herndon, Virginia Type: Contract Job #3845 Location: Herndon, VA Departments: Multiple openings across departments About Us Cornerstone is a dynamic, collaborative, and fun workplace where i...