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
3,000 followers on LinkedIn!? Thank you for dancing into this new era with us! 💃🏻💥
We love that so many of you engage with our content and have followed along with our team and our story as we’ve changed and grown over the years. We like to think of our social media presence as less of an advertisement and more of a place to build community — full of feedback, authenticity, and real conversation. 💬✨
GovCon and Recruiting can often feel myopic and transactional, but one of our core goals is to ensure that whether you’re a prospective, current, or future employee, that is not the experience you have with Cornerstone Defense. From our industry expertise to our cultural engagement and community-building, we work hard to set ourselves apart as a choice employer in the GovCon space — a place where our employees can grow alongside the company. 🚀🤝
Thank you again for following along. If you enjoy our content, have questions about working with us, or have ideas for what you’d like to see more of, drop us a comment or send us a DM. Let’s keep the conversation going — we’re so happy you’re here! 🌟💛
📌✨ Good news travels fast… especially on sticky notes!
💛 WE ARE HIRING!
📍 Cleared positions in the DMV
🎉 Amazing culture + benefits
💥 Work that matters
If this feels like your kind of place, let’s chat! ➡️ Reach out today! [🙂]
Fun Fact Friday! We want to use this series to drop you some interesting tidbits about our company, philosophy, history and culture. Starting with — one of the favorite phrases of our CEO, Pat Palmer, is, “You can’t boil the ocean!” 🌊🔥 It’s a simple reminder to focus on what matters most, set realistic scope, and ship value in stages rather than trying to tackle everything at once.
What it means in practice:
Prioritize ruthlessly. Define the smallest high-impact slice you can deliver now, then iterate. 📌
Clarify the outcome. Make success measurable and time-bound so the team knows when “done” is done. 🎯
Protect momentum. Smaller wins build confidence, reduce risk, and surface learnings earlier. 🚀
Avoid analysis paralysis. Big, amorphous problems get easier when you break them into chunks. 🧩
Do you agree or not?
Drop your take below: Have you seen “not boiling the ocean” help a project move faster—or do bold outcomes sometimes require boiling oceans? Let’s debate! 👇💬
#FunFactFriday #Focus #Prioritization #OperationalExcellence #CornerstoneDefense
Giveaway time! 🎁We’re back with our, “Guess the local spot” series! 👀One lucky commenter will snag Cornerstone notepads, pens (pictured), and a few other office‑supply goodies. To enter: comment your guess and tag a friend who’d enjoy following along on our page.
Clue: A boutique hideaway in a historic downtown area whose name nods to a “castle” in German. 🏰
We love our HQ life, but stepping out into the community keeps us fresh — coffee shops, hotel lobbies, libraries, parks. Where’s your favorite out‑of‑the‑office place to work for an hour or two? Tell us below, then drop your guess! We’ll close out comments on Fri, Feb 27, and DM the winner for details! Good luck! 🎲🍀🫡
HOT PRIORITY! 🔥 We’re hiring a Lead Network Engineer in McLean, VA. Read on to see the description 👇
Cornerstone Defense is seeking a Lead Network Engineer to support a dynamic network environment hosting several data feeds at varying levels of classification.
💼 Role: Sr Comp Network Technologist – Open Mission Critical
📍 Location: McLean, VA (On‑site)
👥 Team: Lead a 3‑person crew, own architecture, upgrades, security, and long‑term sustainment.
What you’ll do:
✅ Design complex networks across multiple technologies
✅ Plan & integrate new configurations for optimal performance
✅ Present to engineering review boards (yes, you’ll have a voice!)
✅ Configure, troubleshoot, and design Cisco routers & multi‑layer switches
✅ Manage small projects end‑to‑end: design → integration → testing → implementation
✅ Diagnose failures fast and restore services like a boss
✅ Document everything (Layer 2/3 provisioning, topology surveys, schematics)
✅ Be the go‑to contact for CIO network engineers
Mandatory Skills (aka your superpowers):
🎓 Bachelor’s in CS/IS/Engineering/Math OR 4 yrs equivalent experience
🔟 10+ years in network config & maintenance
🌐 Advanced networking systems knowledge
🔀 Routing & Switching mastery (Cisco preferred)
🔒 VLANs, Trunking, Multicast, Network Security Appliances
🔄 Full lifecycle: design, install, test, maintain
Why you’ll love it:
✔ Mission‑critical impact
✔ High‑trust team culture
✔ Benefits that actually benefit you
👉 Apply now and let’s build networks that never flinch.
📩 DM for details or click the link in comments.
