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Mechanical Engineer; on-site

Job in Catoosa, Rogers County, Oklahoma, 74015, USA
Listing for: Westerman, Inc.
Full Time position
Listed on 2026-08-31
Job specializations:
  • Engineering
    Mechanical Engineer, Manufacturing Engineer, Process Engineer, Engineering Design & Technologists
Job Description & How to Apply Below
Position: Mechanical Engineer (on-site)
Location: Catoosa

Mechanical Engineer (On-site)

Mechanical Engineer

Westerman, Inc., an employee-owned company, is a multiple site manufacturer of production and storage equipment within the oil, gas, and nuclear industries. Our equipment helps optimize well pad design, improve separation efficiency and lower overall equipment spend through high-performance surface separation and processing technology. Our equipment is setting new standards for performance and economics nationwide.

The Mechanical Engineer is responsible for supporting both pre-sale technical as well as post-sale detailed engineering activities. Overall accountability for defining the technical solutions that are proposed/quoted to Westerman's customers for assigned opportunities. Once a project is awarded to Westerman, this role picks up from the pre-sale activities and develops the detailed engineering to support development of a fabrication drawing package and Bill of Materials.

This position is the lead technical representative for assigned proposals/quotes and projects.

This position is fully on-site and will be located at one of our facilities:
Casper, WY;
Bremen, OH;
Tulsa, OK.

Responsibilities include:

  • Evaluate customer supplied data (3D CADD files, drawings, scopes of work, and quality documents) to extract requirements that impact the designs and ultimately the end product for purposes of quoting and performing detailed engineering
  • Actively engage with external customers, project managers, and the commercial team in discussions about gaps in defined scope of supply as compared with customer requirements
  • Passionately pursue the identification of customer induced scope change and escalate to the project manager or commercial lead for consideration
  • Develop P&'s from scratch or via redlining of existing drawings to communicate project requirements to Estimators and Drafting
  • Perform equipment sizing calculations using process simulation software (Pro Max), in-house developed spreadsheets, etc.
  • Provide review and approval of all 3D model and drawings for assigned projects in accordance with Westerman's standard operating procedures
  • Perform process design calculations for control valves, pressure regulators, pressure safety valves, and pressure vacuum relief valves
  • Perform ASME pressure vessel code calculations using Codeware COMPRESS
  • Other duties as required and assigned

Qualifications include:

  • Bachelor's degree in Chemical, Mechanical, Petroleum, Electrical or Instrumentation Engineering from an ABET accredited university
  • 3-5 years of experience working in a similar capacity in a manufacturing environment with engineered to order products
  • Knowledge of ASME, API, NFPA, ANSI and other standards
  • Experience in applying NFPA requirements for electrical area classification to designs
  • Experience specifying and designing process control systems comprised of a mix of pneumatic, electro-mechanical, and electronic devices
  • In depth knowledge of national and international codes and standards for Oil & Gas process equipment design and fabrication
  • Experience working within multidisciplinary teams and in managing work against safety, quality, cost and time constraints
  • Ability to develop process equipment scheme and layout from conceptual design basis considering operability, maintenance and safety
  • Multi-tasking and ability to work well under pressure with multiple competing priorities
  • Excellent written and verbal communication skills
  • Ability to comprehend project specifications and contract documents
  • Ability to review and comprehend Piping & Instrumentation Drawings (P&'s)
  • Strong interpersonal communication skills
  • Strong problem solving and organizational skills
  • Software-efficient in Microsoft Office (Outlook, Word, Excel, Project, PowerPoint)
  • Software proficiency in Pro Max and Codeware COMPRESS

Physical demands/work environment include:

  • Must be able to sit at a desk for extended periods of time and work on a computer.
  • May be required to lift up to 15 pounds in an office setting.
  • Must be able to sit, stand, reach, stoop, kneel, crouch, climb, and bend.
  • Must be able to see, speak, hear, and read.
  • Must use fingers and hands to manipulate/utilize office machines.
  • Must be able to walk over both even and uneven surfaces.
  • Must be able to wear appropriate PPE
  • Some aspects of this position may require close vision, depth perception, the ability to see small detail, and the ability to adjust focus.
  • Must be able to travel by car and airplane to other facilities if needed.
  • Driving is an essential function of this position; clean driving record is required.

Westerman, Inc. is an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, national origin, sex, sexual orientation, gender identity, disability, veteran status, or other legally protected status.

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