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.
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.
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.
A quick overview into some of our great benefits at Cornerstone Defense:
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.
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.”
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✨ Looking Back on 2025 ✨
As we start the New Year, we’re taking a moment to reflect on everything that made 2025 unforgettable—the highs and lows, the challenges that pushed us forward, and the successes that reminded us why we do what we do.
This montage is more than just clips; it’s a celebration of resilience, creativity, and the incredible people who’ve been part of this journey. Most of all, thank you to everyone who has followed along, supported us, and shared in these moments. You’re the reason we keep striving for more!
💬 Now it’s your turn! Drop your New Year’s goals or simply share your wishes for 2026 in the comments—we’d love to hear what’s ahead for you!
Here’s to a bright, bold, and inspiring new year! 🥂
Happy New Year’s Eve! We’re back with another round of Where in the World is Cornerstone Defense! 🌍🤗Any guesses where this snowy scene with our sweet, Cornerstone logoed beanie is?! 🏂☃️❄️But more importantly, drop us a comment and let us know what your New Year’s Eve/Day plans, we’d love to hear! We hope, wherever you are, you’re staying warm and cozy, and getting excited to ring in the New Year! 🎉
It may be Christmas but guess what — we’re still hiring! 😂🎄 Okay, well, our office is closed today but we will still be up and running from now till the end of the year with plenty of new job opportunities, so don’t hesitate to reach out! Pictured, our Director of Marketing and Operations with her sweet younger sister who got to visit our office recently and enjoy our festive Christmas Tree and decorations. We love that our team can include their friends and family in our work life and work culture, most especially during the holiday seasons! 🙌🤗
All that said, Merry Christmas from our team to you! Thanks for following along with us, engaging, and supporting the work we do. We hope you’re having the happiest winter season — Happy Holidays! ❄️🎁🎉
🚨 We’re Hiring! 🚨
Are you a systems-savvy pro with a passion for secure, high-performance networks? Cornerstone Defense is looking for a Systems Administrator in San Diego, CA, with deep expertise in network infrastructure, security architecture, cloud computing, and virtualization.
🔍 What You’ll Bring:
✅IAT Level II Compliance
✅ 4+ years of system management experience
✅ Mastery of LAN/WAN, VPNs, TCP/IP, DHCP, DNS
✅ Security-first mindset: firewalls, encryption, threat mitigation
✅ Cloud fluency: SaaS, IaaS, PaaS, hybrid deployments
✅ Hands-on with virtualization, performance tuning, and fault diagnostics
🌐 If you thrive in fast-paced environments and want to make a real impact, we want to hear from you.
📢 Apply now and help us build secure, scalable systems that power mission-critical operations.
And just for fun, this video features a very popular spot somewhere in sunny San Diego 🌴 — can you guess where?
💬 Drop your guesses in the comments — and if you’ve been there, share your favorite memory!
#SystemsAdministrator #CybersecurityJobs #CloudComputing #CornerstoneDefense #SanDiego #GuessTheSpot #TechCareers #NowHiring #JoinOurTeam
🎧 Cornerstone Defense: 2025 Wrapped
We had over 13,000 applicants this year (even we’re surprised by that number! 😲). Of those, more than 7,000 were eligible—cleared and ready to support the mission. 🌎 Applicants came from over 3,000 cities across the country, bringing with them a rich tapestry of backgrounds, experiences, and perspectives—including a strong representation of veterans and diverse communities. 🇺🇸🌍 And here’s the kicker: 80% of those who interviewed were hired—because when we meet the right people, we know it. 💼✨
We’re proud of the talent we’ve connected with this year, and we’re even more excited to meet new faces, grow our team, and expand our network in 2026. 🚀 Whether you’re looking to join us or collaborate, we’re ready. We can’t wait for what’s to come in 2026! 🎉 #CornerstoneWrapped #DefenseCareers #HiringStats #2025Recap #2026Goals #VeteransWelcome #DiversityInDefense
