Senior Construction Materials Field Technician

ECS Group of Companies; Tempe (AZ); On-site; USD 55,000 - 75,000; Full time

Job summary

ECS Group of Companies, based in Phoenix, is seeking a certified Construction Materials Testing Senior Field Technician to join our field services team. You will perform observation, testing, sampling, and inspection of soils, aggregates, concrete, and related materials on construction sites, under guidance from experienced staff and project managers.

We support professional development through certifications and ongoing training; opportunities to advance your skills are encouraged within ECS’s

Qualifications

• 2+ years of related experience.
• High School diploma or GED.
• Must maintain current basic level certifications plus 2 advanced certifications.
• OSHA 10 is a plus.
• Valid driver’s license and insurance required.
• Ability to lift 40–70 lbs multiple times daily; up to 85 lbs.
• Effective communication and safety awareness on job sites.
• Proficiency with basic MS Office and mobile devices.

Responsibilities

• Perform observation, testing, sampling, and inspection of materials on construction sites.
• Execute tasks per project requirements under guidance of senior staff and project managers.
• Conduct routine field tests for soils, aggregates, concrete, grout, masonry, asphalt, and structural steel.
• Draft field reports documenting site observations and test results.
• Maintain daily communication with site contractors and project teams.

Skills

Strong communication

Strong math

Safety awareness

Education

High School diploma or GED

Tools

MS Office

Job description

ECS Limited is offering a unique opportunity for a talented and certified Construction Materials Testing (CMT) Senior Field Technician to join our Phoenix 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.

Responsibilities

• 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

• 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.

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.

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

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.