Construction Administrative Assistant

Tasman, Inc.; Greeley (CO); On-site; USD 36,000 - 40,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

401(k) Match

HSA

FSA

PTO

Paid Sick Time

Paid Holidays

Tuition Reimbursement

Safety Equipment

Employee Assistance Program

Job summary

Tasman Inc. is seeking a Construction Administrative Assistant for our Greeley, CO office. You’ll support day-to-day operations in the Construction Earthwork division, handling billing, project data tracking, and documentation to keep projects moving.

Ideal candidates are detail-oriented, organized, and capable of multitasking in a fast-paced environment. This full-time, non-exempt role offers growth potential and hands-on exposure to construction and job cost accounting.

Qualifications

• High school diploma or equivalent.
• 1+ year of accounting, billing, or administrative experience (construction preferred).
• Proficiency in Microsoft Office (Excel, Word, Outlook).
• Able to learn accounting and project management systems.
• Strong organization, attention to detail, and communication.

Responsibilities

• Create and support monthly client billings.
• Manage and track multiple project spreadsheets and data.
• Communicate project data clearly to managers.
• Generate job cost reports and assist with budgets.
• Review and code AP invoices and input data into NetSuite.
• Support documentation distribution and project coordination.

Skills

Communication

Organization

Attention to detail

Multitasking

Teamwork

Education

High school diploma or equivalent

Associate’s degree in Accounting or related field

Tools

Microsoft Office

NetSuite

Job description

Construction Administrative Assistant

Support Projects. Manage Data. Keep Construction Moving.

Pay: $26.00 – $29.00 per hour

Position Type: Full-Time, Non-Exempt

Location: Greeley, Colorado (Office-Based)

Travel: Minimal

Reports To: Makaila Carey

The Role

The Construction Administrative Assistant supports day-to-day operations within Tasman’s Construction Earthwork division. This role provides critical administrative and job cost support, assisting with billing, tracking project data, managing documentation, and supporting project lifecycle activities from startup through closeout.

This position offers hands-on exposure to construction operations and job cost accounting, making it ideal for someone detail-oriented, organized, and eager to grow within a dynamic environment. The ideal candidate thrives in multitasking, problem-solving, and maintaining structure in a fast-paced setting.

What You’ll Be Doing Administrative & Project Support

• Create and support monthly client billings
• Manage and track multiple project spreadsheets and data
• Communicate project data clearly and concisely to managers
• Generate job cost reports and assist with tracking budgets

Accounting & Data Management

• Review and code accounts payable (AP) invoices
• Enter equipment units and project-related data into NetSuite
• Support cost control tracking and documentation accuracy

Operational Support

• Assist with documentation distribution and project coordination
• Maintain organized project records and files
• Support project startup and closeout processes
• Perform additional administrative tasks as assigned

What You Bring

Required

• High school diploma or equivalent
• 1+ year of experience in accounting, billing, or administrative roles (construction or related field preferred)
• Proficiency in Microsoft Office (Excel, Word, Outlook)
• Ability to learn accounting and project management systems
• Strong organizational skills and attention to detail
• Strong written and verbal communication skills
• Ability to manage multiple priorities and adapt quickly
• Ability to work both independently and as part of a team
• Strong time management and task prioritization skills
• Ability to maintain confidentiality
• Valid driver’s license and authorization to work in the U.S.

Preferred

• Experience in oil & gas industry
• Associate’s degree in Accounting or related field

Work Environment

Office Conditions

• Regular use of computers, phones, and office equipment
• Collaboration with project managers and operations teams

Physical Requirements

• Sit, stand, walk, and use hands for standard office tasks
• Occasionally lift up to 30 pounds
• Stand for periods of time and move within office environment

Schedule

• Full-time
• Monday – Friday, typically 8:00 a.m. – 4:00 p.m.
• Occasional evenings or weekends based on project needs
• Daily schedule may vary depending on workload

Work Authorization

• Must be authorized to work in the United States
• Must possess a valid driver’s license

Benefits

• Medical, dental, and vision insurance
• 401(k) with company match (up to 4%)
• Health Savings Account (HSA) & Flexible Spending Account (FSA)
• Paid time off (PTO)
• Paid sick time
• Company-sponsored paid holidays
• Tuition reimbursement
• Safety equipment provided
• Employee Assistance Program (EAP)

Why Join Tasman?

At Tasman Inc, we deliver environmental, construction, and consulting solutions with a strong commitment to safety, integrity, and excellence. Our teams support impactful projects that protect infrastructure, communities, and the environment.

Our Work Is Guided By Three Core Values

WE ARE OUR PEOPLE

Safety is #1. We ensure every employee makes it home safe every day and succeed together as a team.

DO THE RIGHT THING

We operate with integrity, accountability, and respect for people and the environment.

PURSUE EXCELLENCE

We apply expertise, innovation, and high standards to everything we do.

As a Construction Administrative Assistant, you’ll play a key role in keeping projects organized, accurate, and on track—while building valuable experience in construction and project support.