Arncliffe to Bella Vista
You'd be right next door to the EEVblog lab!
Google maps reckons 1hr 5mins, but that's now in the middle of the day, public transport says 1hr 30mins which I'm guessing will be the same or quicker than car in rush hour but I would have to give both a go to find out.
Good news is that is completely against the flow of traffic.
But ouch, that is about as bad as it gets. Basically anything that crosses North-South will be a dog.
Also, you will get hit with the worst possible polls path in Sydney - M2, Lane Cove Tunnel, Bridge (coming in), and I think another one getting under the city. That could be in the order of a couple of hundred bucks a week!
M5-M7 is another option, but that might more of a dog.
There is only one bus route that goes to Bella Vista, and you'd have to swap in the city, probably 1.5hrs total each way, awful.
I would really think long and hard about taking that job, IMO it's just not worth it to travel that far.
Looks for jobs on the south side of the city, they often have a hard time getting people in electronics because probably the majority live on the north side.