Nicholas “Rhino” Rinell | Master Sergeant, USMC | MBA
Hold the Standard.
In Uniform and Beyond.
Senior military leader, educator, and founder – building at the intersection of service, leadership, and what comes next.
22+
YEARS OF ACTIVE SERVICE
E-8
MASTER SERGEANT
MBA
AMERICAN MILITARY UNIVERSITY
WHO I AM
Nicholas Rinell
Air Traffic Control Maintenance Chief
MCAS Camp Pendleton
Adjunct Faculty, AMU
Founder, The Keep
I have spent over two decades leading people in some of the most demanding environments the Marine Corps assigns, from technical operations to executive-level staff. That experience did not make me rigid. It made me precise about what standards actually mean and what it costs to abandon them.
Outside the uniform, I teach business fundamentals at the graduate level, write a newsletter read by leaders across industries, and develop work that applies military resilience frameworks to civilian performance challenges. I build in parallel because I believe the transition from service to significance is a design problem, not a default.
NEWSLETTER
The Keep
A newsletter for leaders who hold the line when it matters. Published monthly on LinkedIn: practical, grounded, no noise.
WRITING & IDEAS
Best of LinkedIn
Selected posts on leadership, transition, standards, and the parallel build. Curated from years of consistent publishing
SPEAKING
On The Record
Podcast appearances, award recognitions, and speaking engagements! A growing record of ideas shared beyond the page.
VIEW APPEARANCES
“Hold the Standard”
THE KEEP – NICHOLAS RINELL
Nicholas Rinell, MBA | Leadership in Ethical Management and Project Excellence 