female engineer wearing blue cap outdoors

technician outdoors woman safetyhelmet exterior protection females architect project engineer concentration officebuilding concentrated girl maintenanceman person instructor worktool working constructionworker protectiveworkwear constructionindustry buildingcontractor constructionframe plan constructionsite selectivefocus cap examining scaffolding trainee professional sitemanager safetyequipment safetyjacket people absorbed builder manualworker worker