The work requires a professional knowledge of the principles, methods and techniques of risk assessment, exposure assessment, industrial hygiene/exposure science, occupational safety, and a desire to apply multi-disciplinary approaches (e.g., chemistry, biological sciences, epidemiology, biostatistics, and public health) to research projects involving potential effects from exposure to different materials, chemicals, or biological agents. M&J Engineering, P.C. (M&J) is a leader in construction management and inspection, civil, ITS, mechanical, electrical, wastewater, water supply, tunnel, airport, port, marine/coastal, and environmental engineering, and design-build services for both new infrastructure projects and renovations.