Senior Construction Material Field Technician

ECS Group of Companies (ECS) is a premier engineering consulting firm established in 1988 with a mission to elevate professional engineering standards. Over more than three decades, ECS has grown into a leader in geotechnical, construction materials, environmental, and facilities consulting services. With an employee-owned structure, ECS boasts a workforce of over 3,000 professionals spanning more than 100 offices and testing facilities across the United States. The company has been recognized in the industry for its excellence, currently ranked number 60 in the Engineering News-Record's Top 500 Design Firms as of April 2026, number 148 in the Top 200 Environmental Firms as of October 2025, and number 50 on the Zweig Group’s Hot Firm List as of May 2025. ECS is committed to diversity and inclusion and operates as an Equal Opportunity Employer, reflecting its dedication to creating an equitable work environment for all employees.

ECS Limited is offering a unique opportunity for a talented and certified Construction Materials Testing (CMT) Senior Field Technician I to join the King of Prussia team. This full-time position presents an excellent chance for candidates seeking to grow their professional development within the field services department. The Senior Field Technician role entails a variety of responsibilities centered on performing field observations, inspection, sampling, and testing of construction materials such as soils, aggregates, concrete, grout, masonry, asphalt, and structural steel placement. Essential tasks involve executing routine field tests using industry-standard methodologies and equipment, followed by thorough data collection, calculations, and documentation to ensure project compliance and excellence.

A key aspect of this role is strong collaboration with project managers, senior technicians, contractors, and other site personnel to maintain clear communication and effectively respond to changing site conditions and additional testing requests. The Senior Field Technician also participates in project meetings and receives ongoing training in ECS methodologies, enabling them to document findings precisely in accordance with accepted engineering practices. As experience grows, ECS actively supports continuous career advancement, encouraging participation in internal and external training programs and professional certification opportunities from organizations such as ACI, ASNT, AWS, ICC, NICET, NRCA, RCI, various State DOTs, and WACEL.

The position requires candidates to have at least two years of related experience, maintain basic and advanced certifications, and adhere to safety protocols including heavy construction safety practices. Candidates should be physically capable of carrying substantial weight regularly and have a valid driver’s license with suitable transportation for job sites, with mileage reimbursed. Strong communication skills, proficiency with electronic devices, ability to read maps and interpret engineering plans, and basic knowledge of MS Office are also necessary. The pay range for this role in the King of Prussia area is $23 to $35 per hour, with final compensation dependent on location and individual qualifications. This opportunity invites motivated professionals who want to advance their technical skills, collaborate with industry leaders, and contribute to high-quality construction materials testing within a respected national company.