Pros
Salary can really go high if working hard. One of the main incomes are through travelling, there are types of allowances that motivates the staffs to work more, it is tempting especially towards young people who just started their career. A lot of opportunities, you get to see the whole picture of what telecommunication market is, it's good if you really having a clear target on what you gonna achieve here. Also another good thing is that there are plenty of resources to get whenever you encounter a problem, either through some experts working in RnD team, or through some libraries from their intranet, you will just need to be hardworking enough to go through those materials, In short, there are no lazy people here (most of the cases), everyone strikes for a same goals to work and earn. It will be an unforgettable experience throughout your whole work life. Taking myself as example, I got to travel more than 10 times a year in about 6 coutntries, talking about exposure and pay, i think there is no any other company in KL is able to offer this kind of opportunity.
Cons
As everyone knows, the working culture in the company is usually "working day and night", it is somehow usual here to have meeting (internally) at night because everyone is having works or meetings with customer during the daytime. Not only impact on your life, where you will have no time for hobbies, but even for your family, or partner. Moreover, you really need to have a good physically condition to continue this working lifestyle in long term. However, this probably not applicable to all cases, I am just saying this probably because of my own experience.