Treatment Plant Estimator - CIG

CORE & MAIN LP; Missouri; Hybrid; USD 55,000 - 75,000; Full time

Job summary

Core & Main, based in St. Louis, is seeking an Estimator to support critical infrastructure bid takeoffs under guidance from senior estimators.

You will learn plan interpretation, material identification, and basic takeoff procedures while collaborating with the Pre‑Bid and sales teams to ensure timely bid support. You will develop proficiency in takeoff software and plan reading, working closely with higher‑level estimators to learn best practices and company procedures, accepting feedback for

Qualifications

• 5 years prior experience in bid preparation, sales, or construction.
• BS/BA in Construction Management or Engineering (BS/BA).
• Certification required in some areas; MS/MA and 3–5 years of experience beneficial.
• 0–2 years of experience in construction, engineering, or related fields also considered.
• Associate degree or technical certificate preferred.
• Coursework in Construction Management, Engineering, or related fields beneficial.

Responsibilities

• Assists in reviewing construction plans and specifications to identify basic material requirements.
• Performs entry‑level quantity takeoffs with supervision and guidance.
• Supports the preparation of scopes and basic bid packages.
• Works with the Pre‑Bid team to confirm scope details and gather information.
• Learns takeoff software, product knowledge, and plan reading with supervision.

Skills

Bid preparation experience

Team collaboration

Plan reading

Learning ability

Education

BS/BA in Construction Management or Engineering

Associate degree or technical certificate

MS/MA with related experience

Tools

Takeoff software

Job description

About Core & Main

Based in St. Louis, Core & Main is a leader in advancing reliable infrastructure with local service, nationwide. As a specialty distributor focused 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.

Job Summary

The Estimator – Critical Infrastructure Group (CIG) supports the development of quantity takeoffs for critical infrastructure projects under direct guidance from senior estimating personnel. This role focuses on learning plan interpretation, material identification, and basic takeoff procedures. The estimator collaborates with the Pre‑Bid team, sales team, and other estimators to ensure accurate, timely bid support while building foundational estimating skills.

Key Responsibilities

• Project Evaluation & Takeoff Support – Assists in reviewing construction plans and specifications to identify basic material requirements; performs entry‑level quantity takeoffs with supervision and guidance; identifies standard materials and components needed for infrastructure systems.
• Bid Support & Collaboration – Supports the preparation of scopes and basic bid packages; works with the Pre‑Bid team to confirm scope details and gather required information; communicates with internal team members to clarify basic project elements.
• Learning & Development – Participates in training sessions to build proficiency in takeoff software, product knowledge, and plan reading; works closely with higher‑level estimators to learn best practices, workflows, and company procedures; accepts feedback and coaching to improve accuracy and efficiency.

Preferred Qualifications

• 5years prior experience in bid preparation, sales, or construction.
• Bachelor’s degree in construction management or engineering (BS/BA).
• Certification required in some areas; MS/MA and 3–5years of experience beneficial.
• 0–2years of experience in construction, engineering, or related fields also considered.
• Prior internship, training, or coursework in construction or engineering is a plus.
• Associate degree or technical certificate preferred.
• Coursework in Construction Management, Engineering, or related fields beneficial.

Equal Employment Opportunity Statement

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