Ad Type: Looking for a job Seeking work in the fields of supervision and laboratories. Contact number ( Phone number appears when clicking the contact button ) . Laboratory technician with long experience, proficient in all types of soil tests: backfill, grade pouring, base pouring, base course, and concrete and asphalt designs. I am also proficient in site supervision for backfill, excavation, layer leveling, and supervising workers and machinery on site.