The ABS publishes a detailed monthly and quarterly series from the monthly labour force survey. the most recent print of both came out in the past week. Here are quarterly estimates of the number employed by industry sector since 2000. It is interesting to see in which sectors employment has grown and contracted, and how each sector was affected by the mining booms and the GFC.
We can use the original series data to drill into industry sub-divisions. I have smoothed these charts with a 17-term Henderson moving average (to make the broader long-run narrative clearer).