Administrative Assistant

Engineering Consulting Service; Oklahoma City (OK); On-site; USD 28,000 - 36,000; Full time

Job summary

ECS Group of Companies in Oklahoma City is seeking an administrative assistant to support daily office operations. You will handle document processing and transmission, word processing, data entry, filing, scanning, and general clerical tasks to keep projects organized.

The ideal candidate has a high school diploma (or GED) and 0–2 years related experience. We offer an equal opportunity environment with opportunities for growth within a nationwide engineering services firm.

Qualifications

• High school diploma or GED.
• 0-2 years related experience.

Responsibilities

• Document processing and transmission in a timely manner
• Word processing and data entry
• Registering projects and proposals
• Creating folders
• Filing, assembling and binding reports
• Formatting and scanning documents
• Transmitting documents
• Assisting with answering phones and office mail delivery
• Providing backup to other administrative personnel during absences, lunch breaks, training, etc.
• You may also perform other clerical tasks as required

Education

High school diploma or GED

Job description

Responsibilities

• Document processing and transmission in a timely manner
• Word processing and data entry
• Registering projects and proposals
• Creating folders
• Filing, assembling and binding reports
• Formatting and scanning documents
• Transmitting documents
• Assisting with answering phones and office mail delivery
• Providing backup to other administrative personnel during absences, lunch breaks, training, etc.
• You may also perform other clerical tasks as required

Qualifications

• High school diploma or GED

• 0-2 years related experience

About Us

ECS Group of Companies (ECS) was founded in 1988 with the goal to raise the standards of professional engineering consulting. Today, we are a leader in geotechnical, construction materials, environmental and building science + infrastructure consulting services. We are employee-owned with more than 3,00 employees in 100+ offices and testing facilities coast to coast. ECS is currently ranked #60 in Engineering News-Record’s Top 500 Design Firms (April 2026), #148 in Engineering News-Record’s Top 200 Environmental Firms (October 2025) and #38 in Zweig Group’s Hot Firm List (June 2026). For additional information about ECS, visit: www.ecslimited.com.

ECS is an Equal Opportunity Employer. To learn more, click here.