Demo

Estimator - Heavy Infrastructure

Slayden Constructors Inc.
Portland, OR Full Time
POSTED ON 4/9/2026
AVAILABLE BEFORE 5/16/2026
Slayden Constructors Inc. (SCI), a wholly owned subsidiary of MWH Constructors, Inc. (MWH), is seeking a qualified candidate for a Heavy Infrastructure Estimator based in our Salem office.

This position will prepare cost estimates at different levels of design for various delivery systems such as General Contractor (CMGC), Design Build, and Hard Bid. Projects will consist of wastewater treatment facilities, potable water treatment facilities, hydro-power facilities, fisheries, pipelines, and various water infrastructure ranging from $1-250 million dollars.

Essential Functions

  • Prepare cost estimates on proposals, projects, and studies and ensure that the content of the estimate is complete, accurate, and meets the requirements of the Estimating Manager.
  • Adjust productivity, material prices, and means / methods depending on varying project conditions.
  • Review solicitation documents such as specifications and drawings to identify risks and opportunities related to competitive pricing.
  • Coordinate and review the variable estimating factors in each area with Engineering, Procurement and Operations.
  • Provide technical advice and assistance to the Estimating Team in the preparation of all levels of estimates ranging in scope and complexity.
  • Assist the Estimating Team with an independent assessment of an estimate’s accuracy (upon completion of the estimate and summarization of all detailed man-hours, material, construction and home office costs).
  • Coordinate the performance of pricing structure development and application to takeoffs, derived quantities, quantity assumption, and cost allowances.
  • Obtain and verify construction quotations for facilitation of construction projects, addenda’s and contract changes.
  • Obtain and verify subcontractor questions for construction projects and ensures compliance with construction documents.
  • Compile and analyze bids.
  • Develop reports for all review processes.
  • Provide constructability reviews and guidance to the operations team to ensure the preliminary costs of the projects.
  • Actively research, solicit, and develop a network of relationships within the supply chain.
  • Review and incorporate historical data from purchase orders, subcontractors, and productivity analysis reports in order to continuously improve estimating accuracy.

Basic Qualifications

  • Bachelor's degree in Construction Management, Engineering or a related field; equivalent combination of construction field experience, skills and training may be substituted.
  • Minimum of 5 years of previous experience on heavy construction projects or industrial projects.
  • Minimum of 5 years of estimating experience in heavy civil or water infrastructure construction.
  • Strong understanding of civil construction methods, with a focus on treatment facilities, pump stations, & dams.
  • Working knowledge of construction equipment and techniques, drawings and specifications, building materials, and required standards applicable to the discipline desirable.
  • Proficient in estimating software (e.g., HCSS, Sage Estimating, Bid2Win) and Microsoft Excel.
  • Ability to read and interpret civil, structural, and mechanical drawings, specifications, & geotechnical reports.
  • Effective time management skills with the ability to meet strict bid deadlines.
  • Must be proficient in using MS Word, and Excel.
  • Ability to interface and communicate effectively with others.

Preferred Qualifications

  • 5 years of relevant estimating experience, including water/wastewater treatment facilities
  • Field experience
  • Knowledge or experience in CMAR, Design-Build, and Hard-Bid estimates
  • Experience working with designers and project managers through all levels of design from conceptual to 100% complete.
  • Cost control and scheduling exposure is a plus
  • HCSS Heavybid estimating software knowledge is a plus
  • Agtek or Trimble software knowledge is a plus

Benefits

  • Health Insurance (medical, dental and vision)
  • Flexible Time Off Policy (includes vacation, sick and personal time)
  • Paid Parental Leave Program
  • 10 Paid Holidays
  • 401(k) Plan (company matching contributions up to 4%)
  • Employee Referral Program

Slayden, including its parent company MWH, is dedicated to the principles of equal employment opportunity. We prohibit unlawful discrimination against applicants or employees on the basis of age, race, sex, color, religion, national origin, disability, military status, genetic information, or any other status protected by applicable state or local law.

Slayden offers reasonable accommodation in the hiring and employment process for individuals with disabilities. If you need assistance in the application or hiring process to accommodate a disability, you may request accommodation at any time.

Equal Opportunity Employer, including disabled and veterans.

Salary.com Estimation for Estimator - Heavy Infrastructure in Portland, OR
$100,357 to $127,918
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