BOS Civil Pty Ltd in Perth, WA, is seeking a Senior Project Engineer to drive the commercial, program and technical sides of our civil projects. You will work with PMs, review cost forecasts, manage budgets, and guide site teams to deliver on time and within scope. You'll develop detailed staging plans, prepare subcontract scopes, run tenders and oversee claims, variations and EOTs, while mentoring engineers and stepping in as deputy PM when needed.