Mega Projects Estimator - Water/Wastewater Treatment Plants

Experience Required

5 - 20 years

Minimum Education Required

Bachelor's Degree

Compensation

$7.25 / hourly

Hours Per Week

40

Number Of Positions

1

Work Schedule and Shift Requirements

First (Day)

Job Description

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. Visit coreandmain.com to learn more.

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 designbuild delivery, contributing earlystage material, constructability, and cost insights to guide project development. This role ensures material selections, adhere to local, state, and federal regulations as determined in the project specifications. The role 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.

DesignBuild Support

Participates in designbuild projects by evaluating material in early and latestage design.

Collaborate with contractors to identify alternative materials that maintain design intent while improving price competitiveness and delivery schedules.

Bid Strategy, Sales Support & Customer Engagement

Collaborate with the sales team to develop competitive bid strategies.

Assists in scope and ensures timely, accurate delivery of customer quotations.

Conduct scope meetings with contractors to confirm alignment with project needs and expectations.

Leads pre and posttakeoff 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 PreBid team to establish a clear and accurate scope of work.

Maintains strong communication across internal and external stakeholders to support project success.

Works with contractors, sales and Pre-Bid team to recommend valueengineering options for bid projects.

Communicate with design engineers and contractors to clarify unusual, complex, or specialty project elements through RFIs, email, or calls.

Leadership & Mentorship

Coordinates and reviews the work of associate estimators and 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 problemsolving skills

Clear, professional written and verbal communication

Ability to collaborate across engineering, sales, and operations

Strong organizational and prioritization skills in a fastpaced environment

Preferred Qualifications

Experience

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 designbuild, 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 BS/BA in related discipline.

Generally 5-8 years of experience in a related field; certification is required in some areas or MS/MA and generally 3-5 years' experience in a related field.

Certification is required in some areas.

This information indicates the general nature and level of work performed by associates in this role. It is not designed to contain a comprehensive inventory of all duties, responsibilities, and qualifications required of associates assigned to this role. This description supersedes any previous or undated descriptions for this role. Management retains the right to add or change the duties of the position at any time.

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 r ace, creed, color, r eligion, national origin, nationality, ancestry, age, disability, veteran status, pregnancy or related condition (including breastfeeding), affectional or s exual 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 click here or visit

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 r ace, creed, color, r eligion, national origin, nationality, ancestry, age, disability, veteran status, pregnancy or related condition (including breastfeeding), affectional or s exual 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 click here or visit

Core & Main is an Equal Employment Opportunity employer and does not discriminate in employment opportunities or practices on the basis of r ace, creed, color, r eligion, s ex, national origin, nationality, ancestry, age, disability or status as a disabled veteran or veteran of the Vietnam era, pregnancy, affectional or s exual orientation, gender identity or expression, marital status, status with regard to public assistance, veteran status, citizenship or membership in any other legally protected class. 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. Core & Main provides reasonable accommodations for qualified individuals with disabilities in the application, offer, and during employment. If you have any difficulty using our online system due to a disability and need an accommodation you may use the following email address: View email address on click.appcast.io Please specify which position you are seeking to apply for employment, and please only use this email address for inquiries regarding accommodations. For more information, please click here for a notice that provides information concerning the laws and procedures for filing complaints of violations of the laws with the Office of Federal Contract Compliance Programs (OFCCP) AA/EOE.

Job Type

Full time

Benefits Offered

Not specified

Veteran Preference

No

Place of Work

On-site

Requisition ID

45842_20260813