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Core Main
Core Main
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Cost Estimators
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
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Water and Sewer Line and Related Structures Construction
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Core Main
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Water/Wastewater Treatment Plant Estimator
APPLY
Core Main
Chicago, IL
L5 Senior
July 13th, 2026
Cost Estimators
Other Heavy and Civil Engineering Construction
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HDPE Fusion Tech Field & Shop Specialist
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Core Main
Lincoln, NE
L5 Senior
July 14th, 2026
Maintenance and Repair Workers, General
All Other Specialty Trade Contractors
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CDL A Truck Driver
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Core Main
Henderson, CO
L3 Junior
July 16th, 2026
Light Truck Drivers
Specialized Freight (except Used Goods) Trucking, Local
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Treatment Plant - Outside Sales Representative
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Core Main
St Charles, IL
L5 Senior
July 8th, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Sewage Treatment Facilities
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Sales Engineer (Gemlock)
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Core Main
Midland, MI
L5 Senior
July 16th, 2026
Sales Engineers
Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
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Strategic Inside Account Manager: Territory Growth
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Core Main
New York, NY
L5 Senior
July 18th, 2026
Sales Representatives of Services, Except Advertising, Insurance, Financial Services, and Travel
Telemarketing Bureaus and Other Contact Centers
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Water Infrastructure Estimator & Bid Specialist
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Core Main
North Oaks, MN
L5 Senior
July 18th, 2026
Cost Estimators
Water and Sewer Line and Related Structures Construction
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Distribution Trainee - Fire Protection
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Core Main
Columbia, MD
L2 Entry
April 10th, 2026
Training and Development Specialists
All Other Specialty Trade Contractors
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Mega Projects Estimator – Water/Wastewater Treatment Plants
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Core Main
Arkansas, KY
L5 Senior
May 20th, 2026
Cost Estimators
Water and Sewer Line and Related Structures Construction
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Branch Manager I
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Core Main
Vancouver, WA
L5 Senior
June 16th, 2026
Sales Managers
Industrial Supplies Merchant Wholesalers
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Outside Sales Representative (Geosynthetics)
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Core Main
York, SC
L5 Senior
April 24th, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Engineering Services
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Regional Sales Manager (Trumbull)
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Core Main
Or, SZ
L6 Lead
July 13th, 2026
Sales Managers
Water Supply and Irrigation Systems
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Water/Wastewater Treatment Plant Estimator
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Core Main
May, ID
L5 Senior
July 21st, 2026
Cost Estimators
Other Heavy and Civil Engineering Construction
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Sales Engineer (Gemlock)
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Core Main
Jackson, MS
L5 Senior
July 21st, 2026
Sales Engineers
Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
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Mgr, Warehouse
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Core Main
West Hatfield, MA
L5 Senior
July 8th, 2026
First-Line Supervisors of Helpers, Laborers, and Material Movers, Hand
General Warehousing and Storage
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Inside Sales Specialist
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Core Main
Provo, UT
L3 Junior
July 3rd, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Industrial Supplies Merchant Wholesalers
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Estimator
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Core Main
Georgia, KS
L5 Senior
July 21st, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Technician
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Core Main
Bloomfield, CT
L3 Junior
April 9th, 2026
Installation, Maintenance, and Repair Workers, All Other
Water and Sewer Line and Related Structures Construction
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Branch Manager I
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Core Main
Denver, CO
L5 Senior
July 5th, 2026
Sales Managers
Industrial Supplies Merchant Wholesalers
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Driver-CDL A
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Core Main
Fort Worth, TX
L3 Junior
July 3rd, 2026
Light Truck Drivers
Specialized Freight (except Used Goods) Trucking, Local
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Mgr, District Sales
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Core Main
San Antonio, TX
L5 Senior
June 5th, 2026
Sales Managers
Industrial Supplies Merchant Wholesalers
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Pricing Analyst
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Core Main
St Louis, MO
L3 Junior
July 21st, 2026
Business Intelligence Analysts
Industrial Supplies Merchant Wholesalers
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National Accounts Growth Manager
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Core Main
Topeka, KS
L5 Senior
July 25th, 2026
Sales Representatives of Services, Except Advertising, Insurance, Financial Services, and Travel
Administrative Management and General Management Consulting Services
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Field Solutions Specialist - Water Infrastructure
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Core Main
Marienthal, KS
L5 Senior
July 16th, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Water Supply and Irrigation Systems
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Driver-CDL
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Core Main
Ogden, UT
L3 Junior
May 24th, 2026
Light Truck Drivers
Specialized Freight (except Used Goods) Trucking, Local
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Hands-On Field Tech: Water Systems & Equipment
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Core Main
Charlotte, NC
L3 Junior
June 28th, 2026
Maintenance and Repair Workers, General
Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
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Estimator
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Core Main
Morgantown, WV
L5 Senior
July 24th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Estimator
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Core Main
Blandon, PA
L5 Senior
July 24th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Estimator
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Core Main
Beaumont, TX
L5 Senior
July 24th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Estimator
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Core Main
Ogden, UT
L5 Senior
July 24th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Inside Sales and Ops Assoc
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Core Main
Perrysburg, OH
L3 Junior
July 15th, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Industrial Supplies Merchant Wholesalers
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Lead Estimator
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Core Main
Pflugerville, TX
L5 Senior
April 10th, 2026
Cost Estimators
All Other Specialty Trade Contractors
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Driver-CDL
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Core Main
Pflugerville, TX
L3 Junior
July 23rd, 2026
Light Truck Drivers
Local Messengers and Local Delivery
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Senior Estimator - CIG
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Core Main
Oklahoma City, OK
L5 Senior
May 20th, 2026
Cost Estimators
Other Heavy and Civil Engineering Construction
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Distribution Trainee
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Core Main
North Richland Hills, TX
L2 Entry
April 9th, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Water Supply and Irrigation Systems
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Intern - AI/ML Data Engineering - Onsite - St. Louis
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Core Main
St Louis, MO
L1 Intern
July 27th, 2026
Data Scientists
Engineering Services
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Senior Estimator - CIG
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Core Main
Missouri, MO
L5 Senior
July 23rd, 2026
Cost Estimators
Other Heavy and Civil Engineering Construction
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Treatment Plant Estimator - CIG
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Core Main
Tennessee Ridge, TN
L5 Senior
April 28th, 2026
Cost Estimators
Other Heavy and Civil Engineering Construction
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Inside Sales Specialist
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Core Main
Hayward, CA
L3 Junior
May 24th, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Industrial Supplies Merchant Wholesalers
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Supervisor, Product Data Management
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Core Main
St Louis, MO
L6 Lead
July 4th, 2026
Data Warehousing Specialists
Water Supply and Irrigation Systems
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