Learn Farsi: سازنده‌ی این برنامه یک تولیدکننده‌ی موفق است. - The creator of this program is a successful manufacturer.

It uses the suffix -ande, which turns a verb into an agent noun (someone doing the action). It is attached to the present stem of the verb ساختن (sâxtan, to make/build), which is ساز (sâz). So, ساز + -ande becomes سازنده (sâzande, maker or creator).

The word for manufacturer is تولیدکننده (towlid-konande). How does the -ande suffix work with a compound verb?

For compound verbs like تولید کردن (towlid kardan, to produce), you apply the -ande suffix to the present stem of the light verb (the second part). The present stem of کردن (kardan) is کن (kon). You stick the parts together: تولید + کن + -ande, giving you تولیدکننده (towlid-konande, producer/manufacturer).

Why is there an extra letter ی at the end of سازنده‌ی and تولیدکننده‌ی in this sentence?

Both words natively end in the short 'e' vowel written with a silent ه. Because they are linked to the word following them (using the Ezafe grammar rule to show possession or description), we need a bridge sound. After a final 'e' vowel, the Ezafe is pronounced as '-ye' and is written with the letter ی (ye).

Can برنامه (barnâme) mean things other than a computer program?