I've friends working in KK branch n Swak one...the one in Swak used his diploma only to get in, basic around 1.4k only but could easily reach near 3-4k when OT and he have OT almost everyday so...
I think they have this project with Petronas on doing the lab test for samples taken and its so many that they need to stay overtime. But while waiting my friend said they just happily watching movies. The environment could be so busy and relax at some time. The manager is great,someone he can really look up to in this field. He seems really enjoy working there.