Cornerstone Defense LLC is a Small Business servicing the Intelligence, Defense, and Space communities of the U.S. Government. Cornerstone Defense specializes in cloud architecture, enterprise engineering, systems and network engineering, systems and network security, and application and software development. We use these foundational technology areas to deliver solutions for data analytics, cyber, and space/mission operations, customized to meet mission requirements. We are headquartered in Herndon, VA, with employees working across the U.S including DC, MD, CO, UT, NM, HI, and CA. At Cornerstone Defense, you’ll find a partner that values strong relationships, excellence, and teamwork. Our team is a network of professionals who are dedicated to providing agile, secure, and efficient solutions to support mission success. With Cornerstone Defense, you’re not just choosing a service provider, but a committed, steadfast team with a culture designed to excel.
To find out more information on where we can help you, services we provide,
joining or partnering with our team, please select one of the links below!
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.
Learn More
HOT JOB ALERT🔥🔥🔥 We're hiring, as always, and we'd love to see your application! Job Description, below, and link to our website here: ➡️➡️➡️
cornerstonedefense.com/careers/
Cybersecurity Consultant
Reston, VA
Top Secret/SCI with Polygraph
Responsibilities and Required Skills:
Identifies potential information and network or internet security vulnerabilities.
Designs and implements information security standards for applications and databases.
Conducts analysis, investigates and recommends security technologies.
Ensures site security and provides consultation on security issues staying abreast of current malware and other potential internet security threats.
Typically requires a bachelor's degree.
Typically reports to a manager.
Works on advanced, complex technical projects or business issues requiring state of the art technical or industry knowledge.
Works autonomously.
Goals are generally communicated in "solution" or project goal terms.
Company Overview:
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.
Company Benefits:
Cornerstone Defense offers a comprehensive list of benefits, designed to give employees and their families several options to choose from when selecting benefits that best fit their needs. These offerings include not only a full suite of the traditional Medical/Dental/Vision insurances, but also a number of other benefits and perks to include, but not limited to: A 401(K) plan with a company match, tuition and training assistances, paid vacation/leave, a fitness reimbursement program, college savings plan, commuter benefits, financial advisory services, flex spending accounts, health savings accounts, STD/LTD coverage, life and AD&D insurance, employee assistance programs, life financial planning assistance, and legal resources.
A couple of our team members had a fantastic time last week at the ⭐Social Media Outlook 2025⭐ seminar hosted by Capitol Communicator and Potomac Tech Wire in Reston, VA. We made some excellent connections, had good conversations and mostly, learned plenty from the panel that included experts in the Marketing field across several different industries and careers from TikTok to the White House!
Many topics were regarding social media platform trends for the first two months of 2025. So far, 2025 has seen a drastic change across different social media platform algorithms — on LinkedIn for example, stats are currently showing the average post is receiving 65% less organic impressions than 2024! 🤯🤯💥💥Also on LinkedIn, Carousel photos seem to be performing better than videos as video reach has dropped almost 200% since 2024. 🫨🫨 Those are some pretty significant stats when you are planning marketing content!
In the world of digital marketing, everything continues to move exponentially faster as companies continue to shift and shape how they want users to engage with the platform, and if you don’t keep your eyes and ears open it’s impossible to keep up! What trends have you noticed as you engage with social media in 2025? 💹📈📉📊 Drop us a comment and let us know what you’re liking/not liking on LinkedIn, Facebook, Instagram, etc. as of late. Here’s to staying on top of the digital marketing trends in 2025, together!
Happy almost International Women’s Day! (Coming up this Saturday, March 8th!) To celebrate in advance, some of the incredible women on our team took a well-earned break for manicures, pedicures, and great conversations. Because strong teams are built by and with strong women — and a little self-care goes a long way. ✨
Here’s to supporting, empowering, and celebrating each other — today and every day! #InternationalWomensDay #WomenInGovCon #StrongerTogether
We’re on the hunt for our next volunteer adventure — and we want your ideas! 💡 As often as we can, our team rolls up our sleeves and gives back to the community, and we're always looking for new opportunities! (Specifically weekend volunteer opportunities when our team is available. 🙌🏻🙌🏻)
Got a cause close to your heart? A non-profit in need of extra hands? Let us know! Drop your suggestions in the comments or DM us — let’s make a difference together. 💛 #CommunityMatters #VolunteeringVibes #GivingBack
Employee Spotlight alert! Our Q4 Company Newsletter was about reflecting on the past year, and our Office Admin and Marketing Assistant, Terry Kim, provided a heartfelt blurb on her first six months at Cornerstone Defense. We loved to hear her sentiment, since creating a positive working environment and supporting our employees work-life balance are two things we certainly strive for. Let us know what you think of Terry’s spotlight, and if so, drop us a comment and start a conversation! ⭐⭐
“As a somewhat recent grad, I wasn’t sure what to expect when transitioning into this new chapter of my life. Throughout high school and college career, I had several part-time jobs, but I don’t recall having any truly memorable or enjoyable experiences at them. I didn’t realize how crucial a positive work environment was until I started here at Cornerstone. On my first day, I was very nervous and unsure, but by the end of it, those nerves faded. The level of positivity in the office made me reflect on how unfair I had felt at my previous jobs, where the negative atmosphere affected my mood, and in turn, my drive and motivation suffered. Having supportive colleagues and managers makes an incredible difference, and the interpersonal relationships that I’ve built here at Cornerstone have made me more eager to come into work every day and give my best. Cornerstone Defense is my first “big girl job,” and so far, it’s been filled with nothing but positive, uplifting experiences. I’m looking forward to continuing with such a warm and welcoming company as we transition into 2025!”
