Our Team


Rey Ruiz – Executive


Rey Ruiz CEO and founder of Advanced Biomedical.

USAF military – trained biomedical technician certified with years of experience in the field of biomedical engineering equipment repair and maintenance.

Multiple credentials and Factory trained on life safety and critical care instrumentation.


David Majeno – Executive


David Majeno has been a service technician for over 17 years. David has taken on many roles in the industry and is now division manager of the Advanced Biomedical Central Valley area.

He works with the local service organization CMIA to further support the biomedical profession. Another endeavor is volunteering biomedical services to Medical Ministries International to send patient ready equipment to needy parts of the world.

As a father of four David stays busy guiding young minds through the perils of life. In his off time he loves the ocean at the coast and swimming at home.
David has multiple training certifications on many modalities of equipment.


Rob Bosi – Technician


Born in Manila, Philippines. Rob moved to the United States  seventeen years ago.
He thrives on situations that require critical thinking and problem solving.
He has always been interested in technology and electronics and curious as to how electronics work.

Rob is striving to learn more about the medical field and the modern technologies that are shaping the industry.


Kylee Williams – Office Staff

Administrative Assisant

Kylee was born and raised in San Luis Obispo county. She has always been driven by her eagerness to help others and is happy to have found a job that does so. She strives to make your experience with us efficient so you can get back to helping your patients as soon as possible. 

Kylee loves animals, traveling and music. She hopes to one day own her own animal shelter where she can continue helping those in need. 


Victor Duran – Executive


Born in Ojai California and Served our country as a flight medic in the United States Air Force.

Attended school of Aerospace Medicine for Flight medicine.

Over 20 Years of critical Care experience as a Registered Respiratory Therapist.
Lived in Ventura county his whole life and involved actively in community.

Youth coaching and Public service through YAC outreach program.


Brandon Moss – Technician


Brandon Moss born in Visalia and raised in Clovis. He obtained an automotive science degree and greatly enjoys diagnostics and repair.


"I am intrigued by the medical industry. I am fascinated with technology and eager to advance my knowledge in the medical field."


Ryan Carri – Technician


Ryan Carri was born in the Los Angeles area and raised in Hanford, CA.

He is a trained BMET II and strives to provide the best possible service for clients.

Ryan enjoys camping, hiking and playing music.


John Magana – Technician


John received a soccer scholarship to a University in Iowa. Shortly after graduating, he moved to California with a bachelors degree in criminal justice.

"Working in the medical field has always been something I would love to do. As a kid my dream was to work somewhere I could save lives and still is. Although I’m not saving lives I like to think in a way I am with our service."

John hopes to provide the best service and better the company in every way he can. What strives him to be better every day is seeing the customer happy and satisfied.


Albina Hartlein – Office Staff

Office Supervisor

Albina Hartlein is the Office Supervisor at Advanced Biomedical. I moved to California seven years ago from Russia. The medical field has always been interesting to me and now I found my passion.