Learn Turkish: Hizmet kalitesini güçlendirmek maksadıyla eğitimler veriyoruz. - We are giving trainings with the intent of strengthening service quality.

While güçlendirmek için (in order to strengthen) is perfectly correct and common in daily speech, maksadıyla adds a more formal, professional, or corporate tone. It translates literally as "with the purpose of" or "with the intent of". It is formed from the noun maksat (purpose), combined with the compound marker -ı and the instrumental ending -(y)la (with).

Why do we use the full dictionary infinitive güçlendirmek before maksadıyla?

When the subject of the purpose clause (the ones doing the strengthening) is the same as the subject of the main verb (the ones giving the training), you use the standard infinitive -mAk directly before words like amacıyla or maksadıyla. You do not need any personal endings on güçlendirmek because the "we" is already clear from veriyoruz.

Why does kalitesini have both an -si and an -ni suffix?

It starts as a noun compound: hizmet kalitesi (service quality), where -si links "quality" to "service". Because this entire compound is the specific direct object being strengthened, it needs the accusative case. The buffer letter -n- connects the compound marker -si to the accusative ending -i, resulting in kalitesini.