UK Visa for Indian National: Translation Requirements for Employment Contract and Salary Slips

I am an Indian national currently working as a research associate in Germany. I want to attend a conference in UK in July, for which I will be applying for a Standard Visitor Visa. I understand that I need to provide a copy of my employment contract and salary statements to support my claim of sufficient finances. However, my employment contract and salary statements are in German. I have the following questions :

1.)Do I need to get these documents translated to English ? If yes, where should I get it done ?

2.) Will it be sufficient, if I do not get the translation done but rather provide one additional letter from my university (in english) which states that I am employed there and the salary statements and employment contract is valid.