WELCOME TO

Cornerstone

Our Culture

The Cornerstone Defense culture is based upon the concept that our employees are the foundation of our business. We support our Customers’ needs of providing mission focused individuals by engaging our employees in meaningful positions, training, social events, and both civic and philanthropic event participation. We reach the best mission outcome for our Customers by prioritizing our well-balanced and motivated workforce and their values. Every person at Cornerstone Defense is a valued member of our team and at the heart of our culture is the belief that when you are happy, empowered, and encouraged to grow, everyone benefits.

Community Outreach

Everyone at Cornerstone Defense realizes the importance of giving back to their community. Our company began as a Service-Disabled Veteran-Owned Small business and in light of that, we support several Veteran based charitable organizations. As we continue to grow as a company, we are always looking for ways to give back to the community by participating in various annual events, raising money and awareness for these worthy causes.

Diversity & Inclusion

Cornerstone Defense is proud to be an Equal Opportunity Employer. We are committed to creating an inclusive working environment for all employees and to upholding diversity in our recruiting and hiring processes. All qualified applicants will receive equal consideration for employment without regard to sex, gender identity, sexual orientation, race, color, age, religion, national origin, physical or mental disability, protected Veteran status, or any other characteristic protected by law.

Benefits Overview

A quick overview into some of our great benefits at Cornerstone Defense:

  • Medical, Dental, Vision Plans
  • Generous PTO Policy
  • 401(k)
  • HSA and FSA options
  • Life and Disability Insurance
  • Tuition Reimbursement and Training
  • Perks at Work Discount Program
  • Referral Program
  • Leads Generation Program
  • CollegeAmerica 529
  • Fitness Reimbursement Program
  • Travel Assistance
  • Norton Lifelock Benefit Solutions
  • Life Planning Financial & Legal Services

Continuing Education and Training

Cornerstone Defense’s self-paced and self-study online courses are helpful in not only gaining knowledge, but many are also geared towards specific industry certifications and degrees. These zero-cost to employee offerings are comprised of over 7,000 hours of technical, IT related courses, covering all aspects and career paths from Security to Engineering. In the event you can’t find a certification or education training track within our SkillSets online portal, Cornerstone Defense also offers reimbursement for many other types of professional certifications, continuing education, and training programs.

Employee Voices

We are happy to share about the meaning of our Culture at Cornerstone Defense, but we are thrilled when an employee can share the same sentiment. Here’s a recent review from our Cornerstone Defense Glassdoor page that we hope gives insight into working at Cornerstone:

“Working at Cornerstone Defense has been an incredibly rewarding experience, and I couldn’t be more satisfied with the way this company treats its employees. From the moment I joined, it was evident that employee well-being is a top priority here. One of the standout features of working at Cornerstone is the emphasis on creating a positive work environment through various employee events and initiatives. Whether it’s team-building activities, wellness programs, or celebratory events, there’s always something happening to foster camaraderie and boost morale among the staff. These events not only create a sense of belonging but also contribute to a happier and more cohesive workplace. Moreover, I am truly impressed by Cornerstone’s commitment to giving back to the community through its charitable contributions. It’s heartwarming to see the company actively involved in supporting meaningful causes, and it instills a sense of pride in being part of an organization that values social responsibility. What sets Cornerstone apart is the accessibility and approachability of top management. Unlike some companies where senior leadership feels distant or unapproachable, here, the top managers are not only accessible but also genuinely interested in hearing from employees at all levels. They actively solicit feedback, listen to our ideas, and take proactive steps to implement positive changes based on employee input. Furthermore, Cornerstone is committed to fostering a culture of fairness and transparency. I appreciate how decisions are made with fairness and equity in mind, and everyone’s contributions are recognized and valued. This creates a sense of trust and mutual respect among colleagues, which ultimately leads to a more harmonious and productive work environment. In summary, working at Cornerstone has been an enriching journey characterized by a supportive work culture, meaningful employee engagement initiatives, and a genuine commitment to making a positive impact both within the organization and in the broader community. I feel fortunate to be part of such a forward-thinking and employee-centric company.”

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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Flashback Friday! Not everything makes the feed— but it’s where the best ideas begin.  A scene from our old office — what do you think these ladies are they discussing?! 💬💬💬
 
We love looking back to remember the small moments—the hallway catch‑ups, the quick brainstorms, the candid laughs—that quietly built the momentum we have today.

The tools evolve, but human relationships still drive the real work. What do you think the topic was in this clip? 💡👇🎯 a new hire? 🗓️ an event plan? 💼 a client win?! Drop your guesses! 🤗🤗#FlashbackFriday #BehindTheScenes #OfficeTour #CompanyCulture
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AI is changing the industry. Human relationships still win careers. 🤖🤝✨

As the world moves faster and faster into AI, automation, and constant innovation, we’re evolving right alongside it. 🚀 But one thing that will never change for us? The importance of authenticity, culture, and real human connection. 💙

Technology can streamline processes. AI can enhance workflows. But neither can replace truly getting to know people, hearing their stories, celebrating their wins, and building genuine relationships along the way. 🫶

We came across these photos from a happy hour last year that somehow never made it to the feed 🍻📸 — and honestly, these smiles were way too good not to share.

Because no matter how advanced the industry becomes… you still can’t fake genuine laughter, authentic connections, and people who genuinely enjoy being around each other. 😊✨

The future may be powered by AI, but great teams will always be powered by people. 💫
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Hiring: Quality Assurance Linux Administration (2 roles) 🐧🛡️
If your happy place is a terminal window and you can spin up bare‑metal or virtual Linux servers before your coffee cools, we want to meet you. We’re adding two QA Linux Admins—one Level 1 and one Level 2—to help keep mission‑critical systems secure, compliant, and humming across time zones. 🌍
 
What you’ll do
Stand up and harden Linux servers (bare‑metal + virtual), then keep them secure and stable in live and lab/test environments. 🧱⚙️
Drive security compliance (SSP knowledge = big bonus ✅) and maintain systems through updates and audits. 🔐
Learn customer software/hardware capabilities—and keep them maintained like a pro. 🧠🔧
Partner directly with government leadership to roll out updates across multiple projects. 🏛️🚀
Support local + remote customers across multiple time zones (yes, we coordinate the timestamps 😉). 🕰️
 
Open roles (2)
Level 1: 4️⃣ years experience + Bachelor’s 🎓
Level 2: 9️⃣ years experience + Bachelor’s 🎓
 
Linux culture welcome here—whether you say directory or (oops) folder. Apply today and help us keep systems battle‑ready.
👉 Apply via our website!
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Hiring: Quality Assurance Linux Administration (2 roles) 🐧🛡️
If your happy place is a terminal window and you can spin up bare‑metal or virtual Linux servers before your coffee cools, we want to meet you. We’re adding two QA Linux Admins—one Level 1 and one Level 2—to help keep mission‑critical systems secure, compliant, and humming across time zones. 🌍
 
What you’ll do
Stand up and harden Linux servers (bare‑metal + virtual), then keep them secure and stable in live and lab/test environments. 🧱⚙️
Drive security compliance (SSP knowledge = big bonus ✅) and maintain systems through updates and audits. 🔐
Learn customer software/hardware capabilities—and keep them maintained like a pro. 🧠🔧
Partner directly with government leadership to roll out updates across multiple projects. 🏛️🚀
Support local + remote customers across multiple time zones (yes, we coordinate the timestamps 😉). 🕰️
 
Open roles (2)
Level 1: 4️⃣ years experience + Bachelor’s 🎓
Level 2: 9️⃣ years experience + Bachelor’s 🎓
 
Linux culture welcome here—whether you say directory or (oops) folder. Apply today and help us keep systems battle‑ready.
👉 Apply via our website!
... See MoreSee Less

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Accountability isn’t just a value — it’s a commitment that shapes every decision, every interaction, and every outcome. In last quarter’s newsletter article, our CEO reflects on what accountability and ownership really look like inside an organization — and why they must start at the top.

From the expectations we set, to the environments we create, leaders set the tone. And when accountability is present at every level, teams can truly thrive, innovate, and trust one another.

Swipe through to read the full message, including a re‑imagined thought on one of Neil Peart’s most iconic lines — and why it resonates so strongly with how we show up for our people every day.

👉 Swipe to read, and drop your thoughts in the comments: What does accountability mean to you as a leader, coworker, or part of the Cornerstone team?
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