Construction Honolulu, Hawaii



The Mason is responsible for placing, smoothing out, leveling and finishing concrete at job or construction sites.



Job duties include but are not limited to:

  • Prepare site or surfaces for concrete or masonry work with hammer and chisel.
  • Mix mortar, grout, slurry, concrete, or related masonry material
  • Use machines that vibrate concrete to fill air pockets.
  • Spread concrete using groovers, hand trowels and other tools.
  • Smooth out concrete in segments to ensure the concrete poured is level making sure all lumps and bubbles are smoothed over.
  • Rub cement in with sponge-rubber float or burlap.
  • Use wood or plastic forms to shape the concrete and hold it until it is set.
  • Finish corners by hand.
  • Cut pavers.
  • Move or fit heavy objects
  • Cut or shape stone, tile, brick, or related material
  • Make concrete beams, columns, and panels. Arrange concrete forms.
  • Wash away excess concrete.
  • Apply latex and epoxy to floors.
  • Halt concrete pouring if weather looks bad.
  • Fill roadways, driveways, sidewalks, bridges, homes, and parking lots.
  • Install masonry according to specifications.
  • Install prefabricated building components
  • Pour sand in as filler.
  • Use chemical additives to speed up drying process if necessary.
  • Apply cleaning solvents, adhesives, caulking, sealants, coatings, plaster, stucco or related material
  • Erect scaffold; Climb ladders, scaffolding, or utility or telephone poles
  • Repair or replace damaged bricks, tile, or related masonry
  • Build or repair masonry structures, including kilns or furnaces



  • High School Diploma or GED.
  • Must have completed apprenticeship.
  • 5 years’ experience.
  • Must be able to provide a clean driving abstract and valid driver’s license.



GSI Service Group Inc. is an equal opportunity and affirmative action employer that consciously builds inclusive teams and is proud to support a diverse environment that considers all qualified applicants for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.