SUMPRODUCT for information of MONTH and TEXT (2 criteria)

Hi all,

I am currently working on a turnover report and i am having some problems using the countif formula to count e.g. the number of staff resigning on a certain month with a certain title.
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I tried to search online and found that I will have to use SUMPRODUCT instead of COUNTIF for this matter as there are the month column and text column. However, I have not too familiar with this function.
Can anyone help so that i can have the result of:
in January, there are 1 Sales Associate leaver and 1 Senior Sales leaver and 1 Sales Associate leaver in Apr

Note that I only look at the month instead of the date.
thanks for your help in advance