Is 26500 CNY is sufficient for living near Pudong with 15000 saving ?

Let me explain a few things to you:

Pudong means eastern side of the river, technically half of Shanghai. I bet you company is located somewhere in Zhangjiang High-Tech park or Zhoupu sub- district in Pudong.

Transportation:
It's not going to be cheap and convenient to commute if your office and home are not nearby a subway line. I'd suggest to live somewhere along line 2 even if your company has a shuttle bus.

Allowances:
It's normal for local and foreign companies to pay (in full or part) accommodation and transportation on behalf of their foreign staff or Chinese from other cities.

Expenses and saving:
30k net / month is probably a good start for a single professional in Shanghai but a bad choice for a family man with a jobless wife.
I don't think you will be saving anything from the above salary and more likely struggling and hating China, lol
Oh, I forgot to mention it's very standard to pay 2-3 months upfront plus one month deposit before moving into new apartment. Let's say the current rental price for a decent 2 bedrooms in suburbs Pudong, nothing fancy, about 10k/month plus utilities...

If you are desperate to take the position and the company are open to negotiation then make sure you have a "comprehensive" health plan for ALL family members and allowances for housing and transportation plus one-round trip ticket back home.