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Materials Inspector

Job in Washington, District of Columbia, 20022, USA
Listing for: M&J Engineering P.C.
Full Time position
Listed on 2026-07-17
Job specializations:
  • Engineering
    Environmental Engineer, Quality Engineering
  • Quality Assurance - QA/QC
    Quality Engineering
Salary/Wage Range or Industry Benchmark: 60000 - 80000 USD Yearly USD 60000.00 80000.00 YEAR
Job Description & How to Apply Below

Overview

M&J Engineering, D.P.C. is a quality provider of multi-discipline consulting services with over 300 employees. Since its inception in 2004, M&J has grown into diversified provider of engineering, construction management, construction inspection, technology, and environmental services to a broad range of clients, including federal, state and city/local agencies, private owners, architects, engineers and contractors.

M&J is a leader in construction management and inspection, ITS, mechanical, electrical, wastewater, water supply, tunnel airport, port, marine/coastal, environmental engineering, and design-build services for both new infrastructure projects and renovations.

M&J bases its employment and personnel decisions on the principles of Equal Employment Opportunity, with the intent to further the Company’s affirmative action commitment. M&J does not discriminate on the basis of race, color, religion, national origin, sex, sexual orientation, pregnancy, gender identity or expression, age, disability, genetic information, marital status, citizenship status, employment status, veteran or military status, or any other category protected by law.

Our Company vigorously pursues opportunities to recruit and develop job candidates who have the desire and potential for becoming qualified employees through our affirmative action plan.

M&J is seeking a Materials Inspector to perform field sampling and testing of soils, aggregates, asphalt, and concrete on District Department of Transportation (DDOT) projects, ensuring materials meet specifications and maintaining accurate testing documentation and equipment calibration.

Responsibilities
  • Perform field sampling and testing of construction materials including soils, aggregates, asphalt, and concrete.
  • Conduct density testing, compaction testing, and materials sampling in accordance with project specifications.
  • Document materials testing results and maintain testing records.
  • Coordinate materials testing with project inspection staff.
  • Verify materials incorporated into the project meet applicable specifications.
  • Maintain calibration and operation of testing equipment including nuclear density gauges.
  • Assist with documentation of test results for project records.
Qualifications Required
  • Minimum 3–7 years of experience in materials inspection or testing.
  • ACI Concrete Field Testing Technician – Grade I.
  • Nuclear Density Gauge Safety Certification.
Preferred
  • NICET Level II or III – Construction Materials Testing.
  • DDOT materials testing certifications.
  • OSHA 10-Hour Construction Safety Training.
Benefits

M&J is a leader in providing quality engineering consulting services to a diverse and exciting client base. We attract experienced professionals who understand proactive client service, safety, risk management and loss prevention practices, quality control, teamwork, and the development of younger staff. We seek employees who enjoy their work, desire continuous improvement, and want to contribute to the vision and growth of a quality, employee-owned, professional firm.

To all full-time employees we provide a comprehensive package of benefits, including medical, dental and eye insurance, 401(k) retirement plan, life insurance, etc. Salary will depend on experience and credentials.

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