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!
Ever scan the horizon looking for your next big opportunity… only to have it literally appear in front of you? ☁️⛅😂 We hope this caught your eye like it caught ours! 👀👀👀 If you’re searching, check out some info on one of our hob jobs, this week, below!
Hot Job Highlights – Systems Engineer (TS/SCI + Poly Required):
Location: Chantilly, VA
Why Cornerstone Defense:
• Employer of Choice across Intelligence, Defense, and Space
• Culture built around supporting you while you support the mission
• Work/life balance, real impact, real growth
Benefits Snapshot:
• Comprehensive Medical, Dental, Vision
• Generous PTO
• 401(k), HSA/FSA options
• Tuition Reimbursement + Training
• Fitness Reimbursement
• Referral & Leads Generation Programs
• Lifelock, Travel Assistance, Legal & Financial Planning perks
Role Overview — Systems Engineer:
• Modernize and redesign a week‑long Systems Engineering training program
• Lead technical refresh of outdated course content
• Partner with instructional designers, multimedia, graphics, and SMEs
• Convert complex engineering concepts into engaging adult‑learning materials
• Support exercises, case studies, scenarios, assessments, and practical examples
• Coordinate requirements across technical teams and stakeholders
• Refine instructor guides, student guides, slide decks, job aids, and supporting documentation
Required Experience:
• Active TS/SCI + Poly
• 10+ years Systems Engineering experience
• Intelligence Community background
• Strong systems engineering lifecycle & requirements coordination experience
• Ability to translate complex technical concepts clearly
• Communication, collaboration, and organization skills
Bonus Points:
• Experience developing or delivering SE training
• Adult learning / instructional design familiarity (ADDIE, SAM, etc.)
• Modernizing technical training content
• Scenario-based learning experience
• Background in model-based SE, architecture frameworks, or requirements tools
• Prior instructor, SME, or course developer experience
Intern series, part 2! 🌟 Our other two interns, Rachel and Grier, are making the most of their summer experience.
Here is what they are looking forward to:
Rachel: Applying her school knowledge to real business scenarios across accounting, finance, and contracts. 📈
Grier: Networking with highly qualified government contracting candidates and discovering how a business operates behind the scenes. 🤝
👉 Scroll through the photo slides to learn more about them and what brought them here! Don’t forget to drop a 👏 in the comments to give them some intern appreciation!
Summer is heating up, and so are our amazing internship projects! ☀️💼 We are absolutely thrilled to spotlight two of our fantastic summer interns, Zach and Katherine.
From day one, their fresh perspectives and drive to learn have brought so much energy to the team. 🚀 We can’t wait to see the impact they’ll continue to make!
Curious about what they are working on, their favorite coffee orders, and what brought them here? 👇
👉 Swipe through the pictures to get to know Zach and Katherine better, and drop a 👏 in the comments to give them some intern appreciation!
We work hard, but we know how to celebrate our mission! 🥂✨ So grateful for this incredible crew at our recent team dinner. We are expanding our amazing team and looking for a new rockstar to join us!
Are you a cyber mastermind with an active TS/SCI w/ Poly? If you want to tackle the nation’s toughest security challenges with Cornerstone Defense, we need to talk! 🚀🛡️
🕵️♂️ The Role: Lead Cyber Systems Engineer | Linthicum Heights, MD
💸 The Pay: $230K - $250K
Here’s what you’ll be doing:
• 🛡️ Defensive Magic: Use an offensive cyber mindset to assess DOD systems, hunt vulnerabilities, and secure architectures.
• 🤝 Lead & Inspire: Mentor and lead senior systems engineers, helping them crush their goals!
• 🏗️ Architect the Future: Build zero-trust frameworks, evaluate contractor proposals, and shape acquisition documents.
• 🌟 Mission Champion: Build strong relationships with our customers to drive mission success.
What you need to bring to the table:
• 📜 The Badge: Active TS/SCI w/ Polygraph (Required)
• 🧠 The Brains: Relevant STEM BS/MS + 15 years of systems engineering experience (including 6 years in a lead role).
• 🔒 The Skills: Zero Trust experience (INCOSE and NIST knowledge are huge pluses)!
In return, you get an epic benefits package including generous PTO, top-tier medical/dental/vision, 401(k), tuition reimbursement, and so much more! 🌟
Ready to take your career to the next level with an Employer of Choice? Send me a message, or apply directly through Cornerstone Defense Careers to join our growing family! 📥👇
✨ Posting a little early while we’re all still in the office — but we couldn’t resist sharing this shot with the stars & stripes proudly behind us! Happy almost 4th of July and America’s 250th birthday! Grateful every day for the work we do supporting U.S. government missions, and especially for our Cornerstone teammates who are veterans and active‑duty service members.
Big flag, big smiles, big purpose. ❤️🤍💙
How are you celebrating the holiday this year? Drop your plans below! 🎆👇
