DAVID J KOELZER - 443.852.5263

35 years of experience working in the Construction, Oil, Gas, Mining and Power Generation Industries. Extensive background as Project Director, Project Manager, Operations Manager, Construction Manager/Superintendent and Shutdown Manager.

  • Directly involved with over 1 billion dollars work in place.
  • Experienced SAP super user and P6 user.
  • Certified Reliability Leader (CRL)
DONALD BARRUS P.E. - 713.476.2687

Pressure Vessel Certifying Engineer

Designing Systems | Responsible Team Leader | Maximizing Revenue

Goal-driven professional mechanical engineer with over 20 years experience in the design of Pressure Vessels to ASME Section VIII Div. 1 & 2 requirements. static equipment. Proven ability to successfully meet safety, quality, and performance standards. Skilled in linear and non-linear finite element analysis and design, including pressure vessels, heat exchangers, piping components, and structural supports. Extensive background in the petrochemical and power industries. Holder of two patents. Taught Mechanical Design drafting at the University of California, Irving and Finite Element Analysis at California State University, Fullerton. Served as a United States Navy Lieutenant, on nuclear submarines and qualified as an engineering officer.


  • Mechanical Design
  • Pressure Vessel Design
  • Fatigue Analysis
  • Computer Simulation (FEA)
  • Client Communication
  • Heat Exchanger Design
  • Piping Design
  • Leadership
  • Team Building
  • Increasing Productivity