Office Administrator

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Oldcastle, a CRH company, is reinventing what's possible in building solutions. We are the leading provider of innovative outdoor living products and utility infrastructure solutions for the water, energy, and communications markets throughout North America. We're a trusted and strategic partner to engineers, contractors, distributors, specifiers, retailers, and homeowners alike as the manufacturer of precast concrete, polymer concrete, and plastic infrastructure products. Our portfolio of brands includes Oldcastle APG, Oldcastle Infrastructure, Belgard® hardscape, Echelon® Masonry, RDI® railing, Catalyst™ Fence Solutions, Sakrete® packaged concrete, Amerimix® mortar, Pebble Technology International® pool finishes, and Techniseal® sands and sealant technologies.
Job Summary
The Office Administrator supports plant, dispatch, accounting, and HR operations through daily administrative coordination, accurate data entry, and strong communication with internal and external stakeholders. This role ensures smooth office workflow while supporting purchasing, freight, customer credits, and AP processes. The Office Administrator serves as a key point of contact for carriers, vendors, customers, and internal teams across the facility.
Job Responsibilities
Provide general administrative support to plant, dispatch, and sales teams
Manage daily office tasks including documentation, scanning, uploading files, and maintaining organized records
Receive, create, and review purchase orders (PO)
Timekeeper duties for all site employees and temps
Daily production entry
Verify raw material entries and ensure inbound freight is properly received in the system
Enter pallet receivers in expense files and ensure accuracy for weekly and monthly review
Work with carriers to confirm inbound/outbound shipments and determine delivery schedules
Complete and oversee freight confirmations and uploads of proof‑of‑delivery (POD) documentation
Assist with accounts payable, including researching and resolving AP discrepancies
Review and validate site expenses
Process and oversee pallet credits
Manage voided ship tickets and manual price overrides
Update customer records and maintain accurate information in systems
Oversee and participate in month end activities
Participate in daily, monthly, and quarterly inventories
Other duties as assigned on a temporary or permanent basis
Job Requirements
High school diploma or GED required; associate or bachelor’s degree preferred
At least 2 years of administrative, office, or operations support experience
Strong verbal and written communication and interpersonal skills
At least 2 years experience with accounts payable or accounting support
Excellent organizational skills and high attention to detail
Proficiency in Microsoft Office and ability to learn new systems quickly
Dependability and ability to manage multiple tasks in a fast‑paced environment
What CRH Offers You
Highly competitive base pay
Comprehensive medical, dental and disability benefits programs
Group retirement savings program
Health and wellness programs
An inclusive culture that values opportunity for growth, development, and internal promotion
About CRH
CRH has a long and proud heritage. We are a collection of hundreds of family businesses, regional companies and large enterprises that together form the CRH family. CRH operates in a decentralized, diversified structure that allows you to work in a small company environment while having the career opportunities of a large international organization.
If you’re up for a rewa

Employment type
Full Time