Contact Information

  • Stephen Marymee
    (281) 734-1568


Mechanical engineer with experience in the detailed engineering design and troubleshooting of piping systems for petroleum, gas, and petrochemical facilities. Projects have included refineries, chemical plants, upstream production, pipeline terminals, and water treatment.


Service & Technology Corporation – Bartlesville, OK
Mechanical Engineer – 2020-2021
- Designed custom elbow support bracket for active pressure relief pipe in confined space
- Improved speed of mechanical department by upgrading Caesar II stress software
- Visited client facilities to assess the requirements of proposed projects
- Created and revised ISO drawings for proposed systems and components
- Created and revised P&IDs to illustrate system processes
- Walked down and measured existing systems for the creation of ISO drawings and P&IDs
- Performed stress analysis to assess the durability of proposed system configurations
- Wrote project reports informing clients of work performed

AOI International
Technical Support Engineer – 2016-2020
- Performed hydraulic pressure, capacity and shear calculations for well control equipment
- Selected applicable standards for parts and equipment

Waldemar S. Nelson and Company, Inc. – Houston, Texas
Mechanical Engineer – 2014-2016
- Prevented damage to $1.4 million of equipment by redesigning connecting pipe
- Prevented improper plastic material from being used in pipeline station design
- Improved stress analysis process to increase the precision and efficiency of future project work
- Reconciled dimensions to facilitate seamless assembly of offshore gas processing module
- Performed stress analysis to assess the durability of proposed system configurations
- Reviewed ISO drawings and P&IDs for accuracy
- Prepared data sheets for parts, equipment, and standards

WEST Engineering Services – Brookshire, Texas
Intern – 2008-2010
- Created and updated lists of drilling equipment used by offshore drilling rigs
- Emphasized primary subjects within surveyor reports and company documentation
- Updated codes and standards on file to current editions
- Prepared drilling rig safety alerts for internet database and distribution
- Measured property dimensions for planned facility expansion
- Updated SharePoint contact database

Awards and Certifications

Mechanical Engineer-in-Training (EIT) Certification - Texas Board of Professional Engineers

Outstanding Committee Award - March 2018 Hiring Event


Caesar II
Isometric Drawings
Stress Analysis
ASME Standards
Project Reports


Bachelor of Science: Mechanical Engineering (BSME)
University of Texas at San Antonio – 2013

Associate of Science: Science
Lone Star College – 2010