Marine Officer San Jose

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Marine Officer San Jose U.S. Marine Corps, Officer Selection Team San Jose I am Captain Sebastian Magraner and my duty is to identify those who will be worthy leaders of Marines.

The path to becoming an Officer in the United States Marine Corps begins with the Officer Selection Officer (OSO). Our area extends from Palo Alto. CA to Salinas, CA and covers all American Territories in the Pacific, to include Hawaii. Our team will answer questions and help you decide which commissioning program best suits you. Once you have made the commitment to become an officer, we will guide your physical and academic training regimen and prepare you for the rigorous challenges of Officer Candidate School (OCS) and The Basic School (TBS).

Earlier this summer, the San Jose OSO had the privilege of representing the Bay Area at the 2026 Marine Corps Officer Pr...
08/23/2026

Earlier this summer, the San Jose OSO had the privilege of representing the Bay Area at the 2026 Marine Corps Officer Programs Educators Workshop!

It was amazing to meet coaches and educators from across the country who share a common passion with our military leaders: to educate, coach, and mentor young men and women become the best versions of themselves. It was inspiring to watch some of these mentors go through a transformation of their own as they learned and experienced first-hand some of the training our Officers go through along their journey to lead Marines.

From fitness tests, leadership reaction courses and obstacle courses, to an introduction of the Marine Corps Martial Arts Program, osprey rides, lessons on weapons handling and shooting, a tour through the pentagon, and a first-look at our courtrooms; it was incredible to see these folks embrace our culture and step up to every challenge along the way.

To any professors, coaches, directors, and staff that might be interested in seeing what the Marine Corps is all about and what your students could gain from such an experience, I encourage you to reach out to your local Officer Selection Officer (OSO). An educators workshop is organized every year, specifically for college and law school personnel. πŸŽ“

Congratulations are long overdue to our latest graduates and commissioned Officers from the winter class πŸ‘ 🎊 After 10 we...
04/17/2026

Congratulations are long overdue to our latest graduates and commissioned Officers from the winter class πŸ‘ 🎊

After 10 weeks of intense challenges, evaluations, and enduring the harsh winter weather, we are proud to welcome you into the Marine Corps as the future generation of leaders.

Next up! TBS, MOS school, and finally the mythical fleet βš“οΈπŸš’πŸ•

Preparation to become an Officer involves more than just getting in shape. You have to study the academics, you must get...
01/26/2026

Preparation to become an Officer involves more than just getting in shape. You have to study the academics, you must get familiar with tactics, land navigation skills, you have to get familiar and comfortable with weapon systems and start adopting fundamental concepts that will follow you for the rest of your life. Master the basics now so you can achieve excellence in the near future, and let this mindset flow to every aspect of your life. THAT is what makes Marines uniquely proficient πŸ˜‰

Huge thank you to our local Resevre unit for making this possible!

"Winter" FEX 2025! May this be the first in a long-standing tradition to take advantage of some winter backpacking in pr...
01/14/2026

"Winter" FEX 2025! May this be the first in a long-standing tradition to take advantage of some winter backpacking in preparation for the Winter OCS course. Over the period of 24 hours, OST San Jose successfully completed a backpacking trip to grown accustomed to the cold environment around us and brush up on essential OCS skills to include: uniform wearing, hiking preparation, cold weather care, map work, 5-paragraph orders, and SULE evaluations.

No better way to prepare our candidates for the Winter OCS class! β„οΈπŸ”β›„οΈ

Address

210 N 4th Street
San Jose, CA
95111

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm
Saturday 9am - 2pm
Sunday 9am - 5pm

Telephone

+16503531252

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