Demo

Construction Materials Co-Op (Summer + Fall)

ECS Group of Companies
Chantilly, VA Full Time
POSTED ON 5/9/2026
AVAILABLE BEFORE 9/5/2026
The ECS Co-Op Program allows qualified students to reinforce their education through a practical, hands on, paid work experience. A Construction Materials Co-Op will participate in multiple (2-3) co-op rotations. Currently, we are looking for students to complete a Summer & Fall rotation.

  • Observing and documenting field activities related to the construction process
  • Sampling, testing, and inspecting soils, aggregates, concrete, grout, masonry, asphalt, and structural steel placement
  • Performing calculations and data reduction of test results along with drafting
  • Using field screening equipment and documenting readings
  • Reading maps, following directions, and interpreting engineering and construction plans
  • Interacting and communicating daily with contractors, technicians, and project managers

For You Experienced Co-Ops

  • Testing of soils, foundations, reinforced and post-tensioned concrete, masonry, structural steel, and asphalt pavement
  • Determining and/or performing appropriate laboratory tests
  • Attending project meetings and assisting in project resolutions
  • Assisting with preparation of proposals
  • Assisting with scheduling, training, and oversight of Field Technicians
  • Assist with managing project budgets and invoicing

Want to experience what this job entails? Click below:

  • Actively pursuing a Bachelor or Master's degree in Civil Engineering, Construction Management, or related degree
  • Interest in how building materials are utilized in the construction process
  • Must be able to provide suitable transportation for use on job sites - Mileage will be reimbursed
  • Position requires carrying 40 - 70 lbs multiple times a day or occasionally lifting 85 lbs to waist height

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 facilities consulting services. We are employee-owned with more than 3,000 employees in 100 offices and testing facilities coast to coast. ECS is currently ranked #66 in Engineering News-Record’s Top 500 Design Firms (April 2025), #148 in Engineering News-Record’s Top 200 Environmental Firms (October 2025) and #50 in Zweig Group’s Hot Firm List (May 2025). For additional information about ECS, visit: www.ecslimited.com.

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

Salary.com Estimation for Construction Materials Co-Op (Summer + Fall) in Chantilly, VA
$69,955 to $89,637
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