Demo

Administrative Assistant

Mortenson
Omaha, NE Full Time
POSTED ON 4/15/2026
AVAILABLE BEFORE 5/14/2026
Summary 

Mortenson is currently seeking an Administrative Assistant to handle a wide range of administrative and executive support tasks. Your ability to remain flexible, inventive, dedicated, and efficient with a high level of integrity and confidentiality is vital to your success in this role. Excellent written and verbal communication skills are necessary as you will be interacting with staff at all levels in an ever-changing environment. Your extraordinary customer service abilities will ensure every customer has a superb experience when they are at Mortenson facilities.

Accepted Locations: Omaha, NE; Lincoln, NE

Responsibilities

  • Perform regular administrative tasks and overall office organization, greet visitors and customers with a positive demeanor, coordinate and set up meetings, handle calendars, and schedule travel
  • Set up, organize, and manage filing systems, prepare documents, perform record keeping and filing duties, and proofread communications and documents carefully
  • Prepare billing/invoices as needed, coordinate between numerous support groups (Safety, Human Resources, IT, Legal), and procure miscellaneous goods using Mortenson’s internal procurement system
  • Understand the operating group and company resources and assist Operating Group Leadership members with miscellaneous duties such as expense reports and travel
  • Perform regular safety administrative tasks and overall program organization, including reviewing Hazard Recognition submissions, managing safety logs and spreadsheets, tracking permits and inspections, and supporting daily, weekly, and monthly safety operations.
  • Set up, organize, and maintain safety filing systems and records, including permits, authorizations, audit documentation, Trade Partner safety records, and orientation files, ensuring proper retention and compliance with operational requirements.
  • Prepare safety-related materials and communications, including orientation packets, signage, slides, EAP maps (physical and virtual), audit calendars, and meeting agendas; distribute updates and post-meeting notes as required.
  • Coordinate with multiple internal and external support groups (Safety, Operations, Trade Partners, HR, IT, and Leadership), assist with training logistics, meetings, catering, safety week planning, and procure safety supplies, equipment, prizes, and tokens within budget.
  • Understand site safety programs, procedures, and resources to assist Safety Leadership with reporting, training coordination, inventory management, OSHA course assignments, and special safety initiatives; perform all other duties as assigned.
  • Perform all other duties as assigned

Qualifications ,

  • Associate or bachelor's degree preferred
  • Minimum three years administrative support experience required
  • Detail orientation and the capability to proofread effectively
  • Demonstrate flexibility as well as excellent organization and multi-tasking skills
  • Display proficient skills in Microsoft Word, Excel, Outlook, and Power Point
  • Exhibit effective communication and active listening skills
  • Positive professional attitude and strong customer service skills
  • Construction-related business experience preferred
  • Experience with billing, invoicing, and timekeeping preferred

A few benefits offered include: 

(for Non-Craft & Non-Union Craft working 25 hours / week)

  • Medical and prescription drug plans that includes no additional cost vision coverage 
  • Dental plan 
  • 401k retirement plan with a generous Mortenson match
  • Paid time off, holidays, and other paid leaves 
  • Employer paid Life, AD&D, and disability insurance 
  • No-Cost mental health tool and concierge with extensive work-life resources
  • Tuition reimbursement 
  • Adoption Assistance  
  • Gym Membership Discount Program  

The base pay range for this role is $59,300 MIN - $80,000 MAX. (Actual range is higher for the following office locations: Denver, CO and Chicago, IL – 5%, Seattle, WA, and Portland, OR – 10%, Washington, D.C. – 12.5%).

Base pay is positioned within the range based on several factors including an individual’s knowledge, skills, and experience, with consideration given to internal equity.

Please Make Note

  • Visa sponsorship is not offered for this position.
  • Our postings are typically open a minimum of 5 days and an average of 44 days. 

About Mortenson

As a top builder, developer, and EPC (Engineering, Procurement, and Construction), our expertise spans markets like sports, renewable energy, data centers, healthcare, and more. We are builders at heart, working to ensure the built environment has a lasting positive impact. 

Let’s Redefine Possible® 

Equal Employment Opportunity

Your uniqueness brings new and creative perspectives to the team. Mortenson is committed to providing equal opportunities of employment (EOE) to all individuals, regardless of your race, religion, gender, national origin, age, veteran status, disability, marital status or any other legally protected category.

Other Items To Note

  • Mortenson reserves the right to hire any individual without legal or financial obligation on unwanted solicitations. No agency emails, calls, or solicitations are accepted without a valid agreement.
  • Must be currently legally authorized to work in the U.S. without sponsorship for employment visa status (e.g., H1B status, 0-1, TN, CPT, OPT, etc.). We are unable to sponsor or take over sponsorship of an employment Visa at this time.

Salary : $59,300 - $80,000

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