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. Understanding the value of human capital, our recruitment approach is heavily grounded in networking, established relationships, and word-of-mouth referrals that echo our strong company culture. It’s a testament to the environment we’ve created; one where individuals aren’t just numbers or seats to fill, but vital parts of a collaborative, innovative, and dynamic team.
Cornerstone Defense actively focuses on employee retention. We not only attract the top, talented candidates, but we keep them. The inclusive, positive environment that values employee contributions and promotes collaboration, teamwork, and continuous learning has engendered a loyalty that is exceptional in our industry.
Cornerstone Defense applies our proven Mission Driven Methodology to assist customers in making effective and informed decisions across their missions. We provide a team of experienced technologists, scientists, and subject matter experts to design and improve customer focused solutions. Cornerstone Defense is focused on providing core mission services and
solutions with a strong value proposition.
Cornerstone Defense was recently named the ninth fastest growing company in the government market. This award is a direct result of our customer-facing team of clients’ determination to get to ‘The Edge’ of differentiated technology in the protection of our nation.
The Cornerstone Defense Aerospace and Defense Sector spans diverse mission areas among the prestigious service branches of our nations Department of Defense and Intelligence Community. Our core capabilities are focused around cloud implementation and support, software development and engineering, exploitation of space operational data, system and network engineering, and space operations command and control.
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The Cornerstone Defense Intelligence Sector provides solutions to the United States Government for information collection, operations, exploitation and dissemination, and research activities. Our operational support team focuses on building and deploying innovative tools and monitoring their effectiveness, while our intelligence analysts and targeting team helps our customers plan and conduct informed operations based upon precise intelligence. Organizations and agencies in this market include Military Intelligence, National Intelligence, Signals Intelligence/MPO, Cyber Command, Defense Intelligence Agency (DIA), Federal Bureau of Investigations (FBI), Department of Homeland Security(DHS), Drug Enforcement Agency (DEA), and the Department of State
(DoS).
The Cornerstone Defense MPO Sector excels in servicing the U.S. Government, with capabilities spanning Cybersecurity, Collection and CNO, Data Processing & Analytics, Enterprise Infrastructure, and Network Security. Our specialized expertise enables us to create agile solutions for mission operations and data analytics. Utilizing advanced cloud architecture, enterprise engineering, and software development, we deliver comprehensive cybersecurity measures, efficient data processing, robust enterprise infrastructure, and secure network operations, seamlessly integrating each aspect to optimize mission success.
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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. Understanding the value of human capital, our recruitment approach is heavily grounded in networking, established relationships, and word-of-mouth referrals that echo our strong company culture. It’s a testament to the environment we’ve created; one where individuals aren’t just numbers or seats to fill, but vital parts of a collaborative, innovative, and dynamic team.
Cornerstone Defense actively focuses on employee retention. We not only attract the top, talented candidates, but we keep them. The inclusive, positive environment that values employee contributions and promotes collaboration, teamwork, and continuous learning has engendered a loyalty that is exceptional in our industry.
Our capabilities are always growing, so if you have a problem and need support, we are looking forward to collaborating with you. Please contact us!
We would love to work with you – Your mission, is our mission!
Learn MoreFind us on Social Media and keep up to date with job openings and the latest news!
Decode the three hex strings to reveal the role we’re hiring for (below.) If it only takes you a few seconds, this might be the job for you!
63 79 62 65 72
73 6f 66 74 77 61 72 65
65 6e 67 69 6e 65 65 72
Location: Linthicum Heights, MD
Compensation Range: $170 -$190K
Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Required Skills:
• C/C++ Software development skills
• Experience in x86/x64 assembly, software reverse engineering, kernel debugging, and protocol stacks
• Experience developing computer exploits
Preferred Technical Skills:
• Experience developing computer exploits
• Experience in Software Reverse Engineering with at least 1 of the following tool or an equivalent: IDAPro, GDB, WinDbg, Immunity/OllyDbg
• Experience in malware analysis and mitigation techniques
• Strong understanding of the Windows and Linux Operating System internals and APIs
• Knowledge of analyzing shellcode, packed and obfuscated and the associated algorithms a plus
• Experience with scripting languages such as Python, Bash, Pearl, etc
• Experience in host and network analysis to identify and characterize anomalies and vulnerabilities in the platform
• Experience documenting findings in reports and briefings
Were these clues enough to figure out what role we’re hiring for? If so, head to our website and apply today!
Success isn’t just a title or a paycheck—it’s impact, growth, and wellbeing. ✅🤗
At Cornerstone Defense, we build careers that deliver all of that and more.
Ready to join a team where your success matters?
Explore open roles today: Career Page in Comments!
#MissionDrivenCareers #TeamCornerstone #WeAreHiring
From Ops to… TriceratOps? 🦖😂
We’re hiring a Sr. DevSecOps Engineer (TS/SCI w/ CI Poly) in Tysons, VA to design, implement, and maintain secure, automated pipelines that ship reliable software—fast and safely. You’ll partner across dev, ops, and security to embed best practices end-to-end, from IaC and CI/CD to IAM and incident response.
What you’ll do:
• Build CI/CD with automated security testing, vulnerability scanning, and compliance checks
• Own IaC (Terraform/CloudFormation/Ansible) with guardrails baked in
• Run security assessments, code reviews, and pen tests; monitor logs for signals and respond fast
• Implement IAM for robust authN/authZ; guide engineers on secure coding
• Contribute to policies, procedures, and documentation that scale
Tech you’ll touch: Jenkins, GitLab CI, Artifactory, SonarQube, Selenium, Fortify, Acunetix, Prisma Cloud; AWS/Azure/GCP; Python/Bash.
Clearance: Active TS/SCI with CI Poly required.
Location: Tysons, VA
If your pipelines are secure, your IaC is composable, and your logs tell stories, apply now and help us build security into the flow—no fossils allowed.
👉 Link in comments!
#DevSecOps #TSSCI #TysonsVA #CI_CD #Terraform
✨ 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! 🎉
