Job Details

Ready-Mix Administrative Assistant

Job Category: Administration Requisition Number: READY003869

Posted: July 27, 2026

Full-Time

On-site

TWIN FALLS, ID 83301, USA

Description

At Knife River, we take care of our team because we know it's our people who make us successful. We are one of the 10 largest construction materials producers/contractors in the Country, and we are a PEOPLE-first company. Our team members are the key to our success, and we are committed to giving them the tools, training, and time to do their jobs productively and safely each day. Our goal is to build strong teams that, in turn, build strong communities. We are also a publicly traded company on the NYSE with the ticker symbol KNF and part of the S&P MidCap 400 index.

Knife River is looking for a reliable and detail-oriented Full-Time Administrative Assistant to support our Ready-Mix operations team. The successful candidate will provide administrative, clerical, and customer service support to ensure efficient day-to-day operations in a fast-paced environment.

Responsibilities include, but are not limited to:

• Provide administrative support to Ready-Mix management, dispatch, and sales teams
• Maintain and organize files, reports, and records for internal and external use.
• Communicate professionally with customers, vendors, and drivers.
• Maintain confidentiality and follow all Knife River policies and safety procedures

Minimum Requirements:

• Strong computer skills including Microsoft office (Excel, Word, Outlook)
• Excellent attention to detail, organizational and communication skills
• Ability to multitask and work independently in a busy environment
• Positive attitude, strong work ethic, and commitment to teamwork.
• High school diploma or equivalent

Prior administrative or office experience preferred

Knife River is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, age, color, religion, gender, gender identity, sexual orientation, national origin, disability, protected Veteran status or any other protected category under applicable state/federal law.