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About the Role

ECS Limited is offering a unique opportunity for a talented and certified Construction Materials Testing (CMT) Senior Laboratory Technician to join our Austin team. In this role, you'll perform a variety of tasks in our concrete and soils laboratories, collaborate with experienced professionals, and continue to develop your skills.

Responsibilities

• Perform specific tasks of increased complexity associated with conducting laboratory testing on construction materials for various projects under the supervision of lab leadership.
• Assist in preparation for and demonstrations of testing procedures as requested.
• Train and mentor other lab technicians.
• Conduct routine laboratory tests using various methodologies and testing equipment following industry standards and compliance.
• Assist with tasks to maintain laboratory organization and cleanliness in compliance with Quality Assurance (QA) and Quality Control (QC) initiatives.
• Maintain accreditation compliance with various organizations, including DOT, AMRL, CCRL, and AASHTO.
• Perform calibration and maintenance of laboratory equipment following the manufacturer’s schedule and records.
• Notify supervisor of broken or missing equipment as needed.
• Conduct routine laboratory tests for soils including Atterberg limits, gradation analyses, swell testing, moisture content testing, unconfined compressive strength testing, standard and modified proctor testing, and begin learning how to visually classify soils.
• Conduct routine laboratory tests for concrete including labeling and setting samples for curing, monitoring temperature logs, and breaking of samples.
• Perform calculations and data reduction based on interpretations of test results.
• Document results accurately using laboratory software.
• Prepare reports and summaries, as well as additional administrative tasks as requested.
• Support the enhancement of professional skills.
• Encourage participation and advancement in internal and external training programs and certification opportunities provided by ASTM or other organizations.

Requirements

• High school diploma or GED.
• 2 years of experience.
• Must have and be willing to maintain laboratory certifications for concrete, soils, or both depending on where work is performed.
• Must be able to lift a minimum of 75 pounds.
• Willing to continue to enhance knowledge of CMT laboratory equipment, testing methods, and ASTM laboratory standards, leading to certifications in soils, concrete, or both with NICET, WACEL, or other organizations.
• Strong data interpretation and documentation skills.
• Strong communication skills (speaking, reading, and writing).
• Ability to work effectively with peers and supervisors.
• US Military ranks E-4/E-5 will qualify IF they also meet the education and certification requirements.

Skills

• Concrete testing
• Soils testing
• Laboratory testing
• Data interpretation
• Documentation
• Communication

Location

• Austin

Work Type

• Full-time

Experience Level

• 2 years

Education Level

• High school diploma or GED

About the Company

• 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 #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 #50 in Zweig Group’s Hot Firm List (May 2025).
• For additional information about ECS, visit: www.ecslimited.com.

Equal Opportunity

• ECS is an Equal Opportunity Employer.