2 sentences

1. 他是公司市场部的部长。

   tā shì gōng​sī shì​chǎng​bù de bù​zhǎng.

   He is the head of the company's marketing department.

   Source: Dong Chinese Dictionary

2. 他在公司的职位是市场部经理。

   tā zài gōng​sī de zhí​wèi shì shì​chǎng​bù jīng​lǐ.

   His position in the company is Marketing Manager.

   Source: Dong Chinese Dictionary