哪位能用英语描述一个职业(任意一个职业就可,只要是大家你我都知道的)50字左右.包括他们平时都做些什么；都有什么责任等等

Physical Design Engineers
Job Responsibilities:
-In Charge of Digital Back-end Physical Design & automation;
-Main responsibilities include circuit synthesis,physical synthesis,static timing analysis,chip floorplanning,auto place and route,capacitance and resistance extraction,design rule checking and delay back-annotation;
-Responsible for clock tree synthesis,scan chain generation,critical path timing analysis and power analysis.
-DRC/LVS command file writing and maintainence
Requirements:
-BS or above with major in EE or Computer Science related field;
-Familiar with floorplan,placement/routing,CTS,and LVS/DRC design flow and be capable of running projects independently;
-Experience with timing driven design flow preferred;
-Experience with DSM IC design or process,and familiar with device modeling,crosstalk,IR drop analysis,preferred.

I am sorry.I don't know.