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Core Main
Core Main
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Core Main
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Inside Sales Specialist
APPLY
Core Main
Charleroi, PA
L3 Junior
July 1st, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Industrial Supplies Merchant Wholesalers
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Warehouse Associate II - Forklift, Indoor/Outdoor, Training
APPLY
Core Main
Pearl City, HI
L2 Entry
July 4th, 2026
Laborers and Freight, Stock, and Material Movers, Hand
General Warehousing and Storage
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Estimator
APPLY
Core Main
New Virginia, IA
L5 Senior
July 15th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Water/Wastewater Treatment Plant Estimator
APPLY
Core Main
California, MO
L5 Senior
July 15th, 2026
Cost Estimators
Other Heavy and Civil Engineering Construction
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Water Infrastructure Solutions Specialist
APPLY
Core Main
Lake Oswego, OR
L3 Junior
July 4th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
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Construction Project Coordinator - Timeline & Resource Lead
APPLY
Core Main
Indianapolis, IN
L4 Mid
July 15th, 2026
Project Management Specialists
Commercial and Institutional Building Construction
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Project Manager - Construction & Municipal Programs
APPLY
Core Main
Vancouver, WA
L4 Mid
July 15th, 2026
Project Management Specialists
Commercial and Institutional Building Construction
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Estimator
APPLY
Core Main
Live Oak, FL
L5 Senior
July 15th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Estimator
APPLY
Core Main
Brockton, MA
L5 Senior
July 15th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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AI/ML Data Engineer Intern - Build Pipelines & Models
APPLY
Core Main
St Louis, MO
L1 Intern
July 16th, 2026
Data Scientists
Custom Computer Programming Services
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Estimator - Water Infrastructure Bidding & Planning
APPLY
Core Main
West Point, NY
L5 Senior
July 16th, 2026
Cost Estimators
Water Supply and Irrigation Systems
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Dir,Corporate Development
APPLY
Core Main
Kansas City, MO
L7 Manager
July 16th, 2026
General and Operations Managers
Corporate, Subsidiary, and Regional Managing Offices
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Senior Estimator, Critical Infrastructure &
APPLY
Core Main
Florida, NY
L5 Senior
July 16th, 2026
Cost Estimators
Water and Sewer Line and Related Structures Construction
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Water Infrastructure Estimator & Bid Specialist
APPLY
Core Main
De Smet, ID
L5 Senior
July 16th, 2026
Cost Estimators
Water and Sewer Line and Related Structures Construction
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Entry-Level Estimator: Critical Infrastructure
APPLY
Core Main
Franklin, TN
L3 Junior
July 16th, 2026
Cost Estimators
Other Heavy and Civil Engineering Construction
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Water Infrastructure Estimator & Bid Specialist
APPLY
Core Main
Jacksonville, FL
L5 Senior
July 16th, 2026
Cost Estimators
Water and Sewer Line and Related Structures Construction
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Water Infrastructure Estimator & Bid Specialist
APPLY
Core Main
Brockton, MA
L3 Junior
July 16th, 2026
Cost Estimators
Water and Sewer Line and Related Structures Construction
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Estimator
APPLY
Core Main
Cheyenne, WY
L5 Senior
July 16th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Estimator
APPLY
Core Main
Eagle River, AK
L5 Senior
July 16th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Estimator - Water Infrastructure Bidding Lead
APPLY
Core Main
Live Oak, FL
L5 Senior
July 16th, 2026
Cost Estimators
Water and Sewer Line and Related Structures Construction
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Estimator
APPLY
Core Main
Hillsboro, IL
L5 Senior
July 16th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Junior Treatment Plant Estimator - Learn & Bid Support
APPLY
Core Main
Iowa, LA
L3 Junior
July 16th, 2026
Cost Estimators
Sewage Treatment Facilities
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Estimator
APPLY
Core Main
Eden Prairie, MN
L5 Senior
July 16th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Treatment Plant -Outside Sales Representative
APPLY
Core Main
Tampa, FL
L3 Junior
July 16th, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Industrial Supplies Merchant Wholesalers
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Branch Manager I
APPLY
Core Main
Manteca, CA
L5 Senior
July 16th, 2026
Sales Managers
Industrial Supplies Merchant Wholesalers
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Inside Sales Specialist
APPLY
Core Main
Rockledge, FL
L3 Junior
July 16th, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Industrial Supplies Merchant Wholesalers
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Welder I
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Core Main
La Habra, CA
L3 Junior
July 16th, 2026
Welders, Cutters, Solderers, and Brazers
Water and Sewer Line and Related Structures Construction
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Estimator
APPLY
Core Main
West Point, NY
L3 Junior
July 16th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Water/Wastewater Treatment Plant Estimator
APPLY
Core Main
ONeill, NE
L5 Senior
July 3rd, 2026
Cost Estimators
Water and Sewer Line and Related Structures Construction
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Inside Sales Specialist
APPLY
Core Main
Isle St George, OH
L3 Junior
July 3rd, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Industrial Supplies Merchant Wholesalers
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Treatment Plant - Outside Sales Representative
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Core Main
Bedford Park, IL
L5 Senior
July 3rd, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Sewage Treatment Facilities
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Mgr, Operations
APPLY
Core Main
Green Island, NY
L7 Manager
July 1st, 2026
General and Operations Managers
Water Supply and Irrigation Systems
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Data Integration Engineer II (MuleSoft)
APPLY
Core Main
Maryland Heights, MO
L5 Senior
June 29th, 2026
Software Developers
Computer Systems Design Services
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Senior InfoSec Engineer: SIEM, IAM & PAM Lead
APPLY
Core Main
St Louis, MO
L5 Senior
June 29th, 2026
Information Security Engineers
Computer Systems Design Services
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Driver-CDL
APPLY
Core Main
Pompton Plains, NJ
L3 Junior
July 22nd, 2026
Light Truck Drivers
Specialized Freight (except Used Goods) Trucking, Local
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Treatment Plant - Outside Sales Representative
APPLY
Core Main
St. Charles, IL
L5 Senior
July 26th, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Sewage Treatment Facilities
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Estimator
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Core Main
Denver, CO
L5 Senior
July 24th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Lead Operations Specialist
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Core Main
Winchester, VA
L5 Senior
July 23rd, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Industrial Supplies Merchant Wholesalers
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Lead Production Associate
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Core Main
Provo, UT
L5 Senior
July 23rd, 2026
First-Line Supervisors of Production and Operating Workers
Water and Sewer Line and Related Structures Construction
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Branch Manager: Infrastructure Solutions Leader
APPLY
Core Main
Brooklyn, NY
L8 Director
July 25th, 2026
Sales Managers
Commercial Banking
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