Demo

Office Administrator

Hydro International
Mundelein, IL Full Time
POSTED ON 4/15/2026
AVAILABLE BEFORE 5/15/2026
Job ID: 518469

Oldcastle® APG, a CRH Company, is North America’s leading provider of innovative outdoor living solutions that enable customers to Live Well Outside. The manufacturer’s portfolio of premier building products inspires endless possibilities while providing enduring outdoor spaces where people can connect, reflect and recharge. Award-winning brands include Belgard® hardscape, Echelon® Masonry, MoistureShield® composite decking, RDI® railing, Catalyst™ Fence Solutions, Sakrete® packaged concrete, Amerimix® mortar, Pebble Technology International® pool finishes, Lawn & Garden mulches and landscape features, and Techniseal® sands and sealant technologies.

Job Summary

Here at Oldcastle APG, we value our relationships with our clients and staff. As a point of contact, it is important that the Administrator has a clear understanding of what details of the job and responsibilities this role holds.

Job Responsibilities

  • Assist the Site Manager in the day-to-day office functions to ensure efficiency.
  • Assist Accounting, A/P & A/R departments with invoices and creating purchase orders
  • Enter and receive on all raw material and expense Purchase Orders
  • Prepare Purchase Card receipts and submissions
  • Update pricing on raw materials and delivery charges
  • Ensure common monthly recurring bills like utilities are paid
  • Monthly sustainability reporting: safety & environmental expenditure and usage
  • Coordinate Physical and Raw Material Inventory counts
  • Enter and report Daily Production
  • Responsible for the ordering of office supplies.
  • Maintenance of kitchen and lunchroom supplies, in addition to tracking the budget
  • Receive and distribute express packages
  • Assist other departments on special projects
  • Plan and coordinate office/company functions, parties, etc.
  • Performs a variety of clerical work involving standardized forms, reports, data, and procedures using established instruction/routines.
  • Maintains historical records by filing documents.
  • Develop and grow internal and external customer relationships for the purpose of improving company's growth.
  • Other duties and responsibilities related to the nature of the job may be assigned on a temporary or permanent basis as needed.

Job Requirements

  • High school diploma or equivalent
  • Proven experience as an Office Administrator, office assistant or relevant role
  • Outstanding communication and interpersonal abilities, establish relationships with coworkers
  • and leaders
  • Experience working in accounting or AP
  • Outgoing personality is important in establishing and maintaining strong customer relationships
  • Ability to communicate with employees, peers, supervisors, vendors and customers in an effective manner.
  • Excellent organizational skills and eye for detail
  • Excellent knowledge of MS Office (Excel, Word, PowerPoint, etc.)
  • Ability to learn new systems quickly
  • Experience in Masonry block is also a plus but will train
  • Must be dependable

Compensation

  • The hourly pay is $25-$28, based on experience
  • 401 (k) plan / group retirement savings program
  • Short-term and long-term disability benefits
  • Life insurance
  • Health, dental and vision insurance
  • Paid time off
  • Paid holidays

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 rewarding challenge, we invite you to take the first step and apply today! Once you click apply now, you will be brought to our official employment application. Please complete your online profile and it will be sent to the hiring manager. Our system allows you to view and track your status 24 hours a day. Thank you for your interest!

Oldcastle APG, a CRH Company, is an Affirmative Action and Equal Opportunity Employer.

EOE/Vet/Disability

CRH is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, status as a protected veteran or any other characteristic protected under applicable federal, state, or local law.

Salary : $25 - $28

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