Construction Materials Internship (Level 1)

ECS Southwest, LLP; Oklahoma City (OK); On-site; USD 2,066,000 - 3,031,000; Full time

Job summary

ECS Group of Companies is seeking a Construction Materials Testing (CMT) Intern Level I in Oklahoma City to observe and perform routine field and laboratory testing tasks. You will assist with data collection, documentation, and testing under supervision while gaining familiarity with testing methods and project workflows.

The role emphasizes foundational technical skills, customer service, and ECS core values as you work with senior staff and participate in meetings.

Qualifications

• Pursuing an Associate, Bachelor, or Master degree in Civil Engineering, or related field.
• Strong communication skills (verbal and written).
• Able to follow directions and work under close supervision.
• Must be willing to work in outdoor environments and field conditions.

Responsibilities

• Assist with construction materials observation and testing in the field and laboratory.
• Observe and participate in testing of soil, concrete, asphalt, and other materials.
• Document site conditions and testing results in field reports.
• Prepare and organize field and laboratory equipment.
• Perform basic data entry, calculations, and data reduction tasks.
• Communicate with field staff, contractors, and project team members.

Skills

Strong communication

Detail-oriented

Team player

Ability to lift 85 lbs

Dependable

Adaptable in outdoor environments

Education

Pursuing Associate/Bachelor/Master in Civil Engineering or related field

Job description

What You'll Do

The Construction Materials Testing (CMT) Intern Level I observes and begins performing routine field and laboratory testing tasks in support of construction materials testing projects. This role assists with data collection, documentation, and testing activities under the direction of more experienced staff while gaining familiarity with construction practices, materials testing methods, and project workflows. The CMT Intern Level I develops foundational technical skills and professional competencies while maintaining a positive customer service attitude and demonstrating ECS Core Values.

Responsibilities

• Assists with construction materials observation and testing activities in the field and laboratory
• Observes and participates in testing of soil, concrete, asphalt, and other construction materials
• Documents site conditions and testing results accurately in field reports
• Assists with the preparation and organization of field and laboratory equipment
• Performs basic data entry, calculations, and data reduction tasks
• Communicates with field staff, contractors, and project team members
• Keeps supervisors informed of changing site conditions or additional testing needs
• Assists with reviewing laboratory results and supporting project documentation
• Supports laboratory testing activities, including sample preparation, curing, and testing
• Maintains cleanliness and organization of field and laboratory work areas
• Notifies supervisors of damaged or missing equipment
• Attends project meetings with senior staff as requested
• Performs other duties as assigned

What We're Looking For

Required Qualifications

• 0 years of related experience
• Must be pursuing an Associate, Bachelor, or Master degree in Civil Engineering, or other degree related to our services
• One certification must be completed within the 90-day introductory period, and all basic certifications must be completed within 270 days of employment, including: Radiation Safety, Soils I, and Concrete I
• If driving for or on behalf of any ECS subsidiary, a valid driver's license is required
• Strong communication skills (verbal and written)
• Dependable, detail-oriented, and organized work ethic
• Ability to work both independently and as part of a team
• Ability to follow directions and work under close supervision
• Basic problem-solving and observational skills
• Willingness to work in outdoor environments and field conditions
• Must be able to lift a minimum of 85 pounds a number of times each day

Military Qualifications

• The following US Military ranks would qualify for this position:
• E-4

Please note: relocation assistance is not provided for this position

Who We Are

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.