Mega Projects Estimator – Water/Wastewater Treatment Plants

CORE & MAIN LP; Arizona; Hybrid; USD 70,000 - 90,000; Full time

Job summary

CORE & MAIN LP is seeking a Mega Projects Estimator for Water/Wastewater Treatment Plants. This role involves developing detailed quantity takeoffs for complex infrastructure projects, ensuring adherence to regulations while collaborating with various stakeholders to support project success.

The ideal candidate will have over 5 years of estimation experience, particularly in water/wastewater treatment, and excellent analytical and communication skills. Join us in advancing reliable infrastructure across Arizona.

Qualifications

• 5+ years of estimation experience in water/wastewater treatment plant construction.
• Proven experience performing detailed material quantity takeoffs.
• Strong understanding of civil and mechanical infrastructure systems.

Responsibilities

• Reviews and interprets construction plans and specifications.
• Produces detailed and accurate material quantity takeoffs.
• Collaborates with contractors to improve price competitiveness.

Skills

Attention to detail

Analytical skills

Communication skills

Collaboration

Organizational skills

Education

Bachelor’s degree in Construction Management, Engineering

Job description

Company Overview

Based in St. Louis, Core & Main is a leader in advancing reliable infrastructure with local service, nationwide. As a specialty distributor with a focus on water, wastewater, storm drainage and fire protection products and related services, Core & Main provides solutions to municipalities, private water companies and professional contractors across municipal, non‑residential and residential end markets, nationwide. With over 370 locations across the U.S., the company provides its customers local expertise backed by a national supply chain. Core & Main’s 5,700 associates are committed to helping their communities thrive with safe and reliable infrastructure.

Job Summary

The Mega Projects Estimator – Water/Wastewater Treatment Plants – Critical Infrastructure Group (CIG) is responsible for developing accurate and detailed quantity takeoffs for highly complex critical infrastructure projects. This role supports both traditional bid work and design‑build delivery, contributing early‑stage material, constructability, and cost insights to guide project development. The role ensures material selections, adherence to local, state, and federal regulations as determined in the project specifications, and collaborates closely with sales, engineering, and design teams to support winning bid strategies and deliver exceptional customer value.

Major Tasks, Responsibilities and Key Accountabilities

• Project Evaluation & Takeoff Development
  • Reviews and interprets construction plans, drawings, and specifications to determine project requirements.
  • Produces detailed and accurate material quantity takeoffs for critical infrastructure facilities and systems.
  • Identifies appropriate materials and specialty components required to meet project design criteria.
• Design‑Build Support
  • Participates in design‑build projects by evaluating material in early and late‑stage design.
  • Collaborates with contractors to identify alternative materials that maintain design intent while improving price competitiveness and delivery schedules.
• Bid Strategy, Sales Support & Customer Engagement
  • Collaborates with the sales team to develop competitive bid strategies.
  • Assists in scope and ensures timely, accurate delivery of customer quotations.
  • Conducts scope meetings with contractors to confirm alignment with project needs and expectations.
  • Leads pre and post‑takeoff calls to ensure complete and accurate knowledge transfer.
  • Communicates with vendors to clarify product applications, specialty components, and material requirements.
  • Works closely with the internal Pre‑Bid team to establish a clear and accurate scope of work.
  • Maintains strong communication across internal and external stakeholders to support project success.
  • Recommends value‑engineering options for bid projects.
  • Clarifies unusual, complex, or specialty project elements through RFIs, email, or calls.
• Leadership & Mentorship
  • Coordinates and reviews the work of associate estimators and serves as a senior technical resource as needed.
  • Provides ongoing training, mentoring, and continuing education support to estimating personnel.

Key Competencies

• Exceptional attention to detail and accuracy.
• Strong analytical and problem‑solving skills.
• Clear, professional written and verbal communication.
• Ability to collaborate across engineering, sales, and operations.
• Strong organizational and prioritization skills in a fast‑paced environment.

Preferred Qualifications

• 5+ years of estimation experience in water/wastewater treatment plant construction, or critical infrastructure projects.
• Proven experience performing detailed material quantity takeoffs from construction plan sets.
• Strong understanding of civil and mechanical infrastructure systems.
• Experience working directly with engineering teams, contractors, and vendors.
• Prior involvement in design‑build, value engineering, or complex bid strategies strongly preferred.
• Experience mentoring or reviewing the work of associate estimators is a plus.

Education

• Bachelor’s degree in Construction Management, Engineering, or a related discipline preferred. Typically requires a BS/BA in a related discipline.
• Generally 5‑8 years of experience in a related field; certification required in some areas or an MS/MA and generally 3‑5 years of experience in a related field.

Equal Employment Opportunity

Core & Main is an Equal Employment Opportunity employer. Employment at Core & Main is based solely on a person’s merit and qualifications directly related to professional competence. Core & Main does not discriminate against any employee or applicant on the basis of race, creed, color, religion, national origin, nationality, ancestry, age, disability, veteran status, pregnancy or related condition (including breastfeeding), affectional or sexual orientation, gender identity or expression, marital status, status with regard to public assistance, citizenship, or any other basis protected by law. None of the questions in this application are intended to elicit information regarding any protected characteristics, nor imply any limitation, illegal preferences or discrimination based upon non‑job‑related information or protected characteristics. For more information, please visit https://www.eeoc.gov.