Our Story

Moy Tarin Ramirez Engineers, LLC (MTR) is a full service Civil Engineering and Surveying Firm located in San Antonio, Texas previously in operation under the name of Moy Civil Engineers since 2002. Rolando Ramirez, P.E. and Raymond Tarin, Jr., P.E. joined Duane A. Moy, P.E. to create Moy Tarin Ramirez Engineers, LLC on January 1, 2010. MTR provides civil engineering and survey services which span a wide variety of land development types including commercial, residential, governmental, medical, religious, recreational, municipal and educational facility projects.

55+ years in the engineering industry

With over 55+ years of experience in the engineering industry, we at MTR are committed to providing our clients with engineering excellence utilizing creativity and sound engineering principles, while keeping an eye on quality workmanship and responsiveness to our client’s needs and deadlines.  We take pride in our efforts to keep our clients 100% satisfied, which we believe is critical to maintaining great working and personal relationships that will last for many years to come.  MTR is a privately owned business that provides reliable, trustworthy Project Managers (Professional Engineers) to run the day to day operations of our company.  We have a diversified culture of employees who all seek high achievement, both in their personal lives as well as in their work product at MTR.  As a company, we take pride in being able to give back to the community by participating in a variety of public charity functions, donating to public school districts to the benefit of teachers and students, donating to private schools and providing internships to help guide the “engineers of tomorrow”.

Meet The Team

Raymond Tarin - MTR Engineers-1

Raymond Tarin, P.E., CFM, LEED AP


Rolando ‘Ron’ Ramirez, P.E.


Stephanie James - MTR Engineers-1

Stephanie L. James, RPLS


Paul Landa - MTR Engineers-1

Paul Landa JR., P.E, CFM

Vice President - Design Team Lead

Sean S. Smith P.E.

Vice President

Nick Van Delist - MTR Engineers-3

Nicholas J. Van Delist P.E., CFM, LEED AP

Vice President

Licensing & Certifications

TBPE License

Texas Board of Professional Engineers

TBPLS License

Texas Board of Professional Land Surveying

SBE/MBE Certificate

Small Business Enterprise/Minority Business Enterprise

MTR Engineers - HUB

HUB Certificate

Historically Underutilized Business


NAICS (North American Industry Classification System)Engineer Services #541330 Surveying Services #541370