Onsite Office Manager | Operations & HR Support

mwhconstructors; Broomfield (CO); On-site; USD 39,000 - 47,000; Full time

Benefits offered by this job

Health & welfare benefits

Company-paid life & AD&D

401(k) plan with match

Paid holidays

Paid time off

Parental leave program

Employee referral program

Job summary

MWH Constructors in Broomfield, CO is seeking an Office Manager to support the corporate office and ensure smooth day-to-day operations. The role will report to leadership and cover receptionist duties, onboarding coordination, and administrative oversight.

The ideal candidate has 3+ years in office management or executive support, strong organizational skills, and the ability to handle confidential information with discretion.

Qualifications

• Minimum of three (3) years of professional experience as an Office Manager or Executive Assistant.
• High School diploma or equivalent.
• Proficiency in Microsoft Office (Word, Excel, PowerPoint) and Outlook.
• Ability and willingness to work onsite from the office five (5) days/week.
• Well-organized, flexible, and capable of independent work with minimal supervision.
• Discretion handling confidential and time-sensitive information.

Responsibilities

• Represent the company at our reception desk and greet visitors, clients, and vendors.
• Ensure a smooth operational flow of the corporate, field, or project office.
• Coordinate onboarding, HR paperwork, and employee records.
• Manage accounts payable, expense reports, and supply requisitions.
• Coordinate meetings, travel, calendars, and prepare meeting minutes.
• Oversee vendor relations, maintenance, and office equipment.
• Maintain records, charts, spreadsheets, and databases.

Skills

Office management

Executive support

MS Office

Education

High school diploma

Associates or Bachelors preferred

Tools

Microsoft Office

Outlook

Job description

MWH Constructors in Broomfield, CO is seeking an Office Manager to support the corporate office and ensure smooth day-to-day operations. The role will report to leadership and cover receptionist duties, onboarding coordination, and administrative oversight.

The ideal candidate has 3+ years in office management or executive support, strong organizational skills, and the ability to handle confidential information with discretion.