Senior Construction Materials Field Technician

Engineering Consulting Service; Tulsa (OK); On-site; USD 60,000 - 80,000; Full time

Job summary

ECS Limited is seeking a qualified Construction Materials Testing Senior Field Technician to join our Tulsa team. You will perform field observations, testing, sampling, and inspections of soils, aggregates, concrete, and related materials on construction sites.

You will collect data, draft field reports, and maintain clear communication with project managers and site personnel while adhering to safety standards and ECS methodologies.

Qualifications

• 2+ years of related experience.
• High School diploma or GED.
• Maintain current basic level certifications and 2 advanced certifications.
• OSHA 10 is a plus.
• Lift 40–85 lbs repeatedly; valid driver's license and insurance required.
• Must provide suitable transportation for job sites.

Responsibilities

• Perform observation, testing, sampling, and inspection of construction materials on sites.
• Conduct routine field tests for soils, aggregates, concrete, grout, and other materials.
• Collect data, perform calculations, and draft field reports documenting site observations.
• Maintain daily communication with site contractors and project teams.
• Receive training and document findings with precise engineering practices.

Skills

Field testing

Data collection

Communication

Safety awareness

MS Office

Driver's license

Education

High School diploma or GED

Tools

Testing equipment

Job description

Responsibilities

ECS Limited is offering a unique opportunity for a talented and certified Construction Materials Testing (CMT) Senior Field Technician to join our Tulsa team. We offer opportunities for professional development with additional incentives as you advance your skills and gain experience. In this role, you'll continue to collaborate and develop with experienced project management professionals to safely perform a variety of tasks in Field Services department.

• Field Activities: Perform observation, testing, sampling, and inspection of materials, including soils, aggregates, concrete, grout, masonry, asphalt, and structural steel placement on construction sites; Execute tasks based on project requirements under the guidance of other senior technicians, staff professionals, and project managers.
• Testing Procedures: Conduct routine field tests for soils, aggregates, concrete, grout, masonry, asphalt, and structural steel placement using various methodologies and testing equipment following industry standards and compliance.
• Data Collection: Perform calculations and data reduction based on sampling, test results, and inspections; Engage in drafting and other administrative duties as required; Develop skills in documentation and prepare field reports that document site observations for field work performed.
• Communication: Maintain daily communication with site contractors, other technicians, and project managers; Keep supervisor and project teams informed of changing site conditions and additional testing requested; Attend project meetings with senior staff as requested.
• Training and Development: Receive training in ECS methodology for project observations, inspections, and testing; Document findings with precision in accordance with accepted engineering practices.

Career Development

As your experience grows, ECS will:

• Support you in further enhancing your professional skills.
• Encourage continued participation in internal and external training programs and certification opportunities provided by organizations such as ACI, ASNT, AWS, ICC, NICET, NRCA, RCI, various State DOTs, WACEL, and others, as appropriate.

Qualifications

Required Qualifications

• 2+ years of related experience.
• High School diploma or GED.
• Must have and be willing to maintain current basic level certifications and an additional 2 advanced certifications.
• OSHA 10 is a plus.
• Position requires carrying 40 – 70 lbs multiple times a day or occasionally lifting 85 lbs to waist height.
• Must have valid driver's license and insurance.
• Must provide suitable transportation for use on job sites – Mileage will be reimbursed.
• Must have the ability to safely operate a motor vehicle and follow all local and state laws, road/driving regulations, and company policies.
• Strong communication skills (speaking, reading, and writing).
• Excellent understanding of heavy construction safety, practices, and procedures.
• Ability to work effectively with clients, peers, and supervisors.
• Proficiency with electronic devices such as phones, tablets, and laptops.
• Strong math skills with the ability to read maps, follow directions, and interpret engineering and construction plans.
• Basic knowledge of MS Office.

Military Qualifications

The following US Military ranks will qualify for this position IF they also meet the education, certification, and licenses requirements from the above section titled "Required Qualifications":

• E-4/E-5

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 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.

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