EST, Inc.

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EST is a rapidly growing multidisciplinary engineering firm with office in Oklahoma, Texas and Colorado.  EST provides a dynamic and exciting environment and is dedicated to collaborative and responsive client service. We are committed to upholding our core values of honesty, integrity and professionalism to the highest degree. From designing roads and bridges to providing surveys, environmental site assessments, construction management, geotechnical services, material testing, traffic studies, and site designs. We have broken down the process of providing a variety of engineering services into specialized divisions and are proud to offer our clients the most comprehensive engineering services conveniently available at one firm.

The success of EST comes from the hard work and dedication of our employees. We invest in our people and encourage them to pursue any opportunity that will produce a fulfilling career. We are committed to providing an innovative and creative environment that gives everyone the opportunity
to thrive.

Are you passionate about making a difference? We want you on our team! Send your resume and cover letter telling us about you and your career goals to hr@estinc.com.

Click Here to visit EST's Employment Page

For more Information on EST's Internship Program, please contact

Cassidy Doescher  via email at cassidy.doescher@estinc.net or phone (405) 815-3600


2018 SUmmer Intern

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Hessam (Sam) Dalili
The University of Oklahoma, Norman - Class of May 2020
Civil Engineering / Pre-Dental major

As an intern at EST, I had the opportunity to work under the supervision of Cassidy Doescher in the Norman roadway design division. My job duties include aiding in the preparation and final submittal of plans for various projects. Specifically, I have worked on the title sheets, plan and profile sheets, mass diagrams, traffic control details, cross section sheets, and etc. Throughout my time this summer at EST, I also mastered drawing typical sections. This summer, I also had the opportunity to help our environmental department with Phase 1 inspecting. By doing so, I was able to help the manager of the environmental department to read the Plan and Profile sheets, which helped us to find all the different driveways, structures, and etc. With the help of the design team and our PE, I had the opportunity to learn more about Microstation, which will be very useful throughout my last 2 years of college.