Demo

Senior Estimator

Matrix Project Services, LLC
Catoosa, OK Full Time
POSTED ON 11/4/2026
AVAILABLE BEFORE 12/2/2026

Job Summary

The Senior Estimator is responsible for developing detailed fabrication estimates for industrial components such as pressure vessels, pipe spools, and structural steel items, requiring an understanding of fabrication processes, materials, and applicable industry standards. This will require a thorough knowledge of the project work being performed including multiple trades, the ability to do quantity take-offs from the available documents and enter those into a standardized database. The estimates will need to be organized to meet the Company’s and clients’ expected structure.

Essential Functions

  • Actively supports the Company’s commitment to safety and its “Core Values.”
  • Represents the Company at all times with high moral standards while adhering to the Company’s “Code of Business Conduct and Ethics.”
  • Discerns take-off elements of the work accurately and assigns them to the appropriate items in the database, makes recommendations about how to change the standard database items to more closely reflect field conditions. Must have a strong attention to detail.
  • Solicits subcontract and vendor pricing utilizing uniform corporate structure and evaluate returned bids for completeness.
  • Identifies deficiencies in the drawings and generates pricing to cover for them.
  • Understands the need for evaluating the team’s scope clarifications, and drafts/edits scope clarifications as needed.
  • Develops quantity-based estimates from partial information.
  • Develops detailed cost estimates for fabricated components, including pressure vessels (ASME and non-ASME), pipe spools and piping systems, structural steels and miscellaneous fabricated items. 
  • Develops detailed fabrication estimates based on partial information.
  • Monitors the scope of the project to ensure that all trades have been coordinated and a complete project is being offered.
  • Ensures that estimates are generated in a way that allows take-offs and pricing to be traced directly back to a defining document.
  • Prepares bridging documents demonstrating an understanding of how historical estimated costs have changed from previous estimates.
  • Participates in constructability reviews and cost saving enhancement discussions for constructability assessments, e.g., installation access, manlifts, scaffolding, cranes, etc.
  • Organizes the estimate in a manner required to meet the needs of the project.
  • Estimates the requirements for craft support labor, staff, equipment, and facilities based on analyzing crew sizes for each direct craft.
  • Develops preliminary lifting plans and selects appropriate cranes and other equipment to perform the work.
  • Assists the effort to generate an appropriately detailed resource loaded preliminary schedule.
  • Understands the principals of project cash flow.
  • Develops risk ranging analysis for elements of the project and uses that to assign contingency.
  • Performs other duties as required or assigned.

Qualifications

  • Bachelor’s degree in engineering or related field, or equivalent combination of education/experience in lieu of degree.
  • 7 years of field and/or office experience including a minimum of 4 years’ experience as an Estimator or a Field Engineer involved with estimating or cost monitoring. 3 years' experience with fabrication of pressure vessels, piping and structural steel.
  • Familiar with construction work and terminology.
  • Ability to quickly visualize the finished product from the drawings and other documents provided.
  • Ability to prioritize and work on multiple projects and capable of working independently. Good basic mathematical comprehension.
  • Good oral, written and interpersonal communication skills; ability to make clear and concise presentations to senior management.
  • Strong understanding of the operating process at the facilities being estimated such as refineries, terminals, power plants, mining or other heavy industrial facilities.
  • Solid technical skills with an understanding of the various classifications of estimates and the purpose that they are intended for.
  • Self-motivated enthusiastic team player willing to work/mentor with others and adopt new ideas and methods.
  • Good computer skills including an operating knowledge of Microsoft Word, Excel, Outlook and PowerPoint. Familiarity with Sage estimating, project scheduling software (MS Project or Primavera) and databases will be an advantage.
  • This position may require occasional travel and extended workdays.

Follow us at Matrix Service Company to view all of our open positions and for the latest news about our operating companies and our teams.

Full-time employees are offered a comprehensive benefits package, including medical, dental and vision plans covering eligible employees and dependents, disability benefits, life and AD&D insurance, an employee assistance program (EAP), a 401(k) plan with company match, an employee stock purchase plan (ESPP), a robust wellness program and adoption assistance. Some employees may also be eligible for paid time off, tuition reimbursement and a performance or safety bonus program.
 

At Matrix, we are dedicated to building a culture of engagement, respect, collaboration and teamwork.  We encourage all whose experience aligns with the listed qualifications to apply and explore joining our organization.

EEO/M/F/Disability/Vets Employer

We are an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, age, genetic information, marital status, disability, veteran status, or other legally protected characteristic or category. 

Applicants must be currently authorized to work in the United States on a full-time basis.

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