[請益] 請問PS Engineer 的工作是做什麼的呢

[knives ()]

各位前輩你好

小弟我日前考過CCNP之後，沒幾天就收到Nokia的PS Engineer的面試機會

可是我看它的職務說明:
 ‧ Support Packet Core telecommunication product, namely Combi-SGSN,
Flexi-ISN, Flexi-NG & PCRF.
‧ Work in project implementation, such as commissioning, integration and
acceptance test.
‧ Responsible for technical support and performance of 2G/3G PS Core network
‧ Organize and participate in pilot and roll-out upgrades and patch
installations.
‧ Provide technical answers to customer.
‧ Share technical information and provide competence transfer with collegue.
‧ Consult with customers regarding optimization, planning, feature
activations, and network improvements.

我只看得懂核心層封包交換，像Combi-SGSN、Flexi-ISN, Flexi-NG & PCRF這些名詞

我已自行在網路上Google過了

可是由於之前的工作經驗都是從事程式設計的工作

之前上課的時候，老師也只分享Hinet的實務經驗，所以還可以自行想像工作內容

可是像PS Engineer 就不太了解了

我想請問像所謂的PS Engineer平常的工作內容為何

謝謝回答

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