gōngsī zhèngzài zhāopìn.

The pattern is:

Subject + 正在 + Verb

So here:

• 公司 = company
• 正在 = in the middle of / currently
• 招聘 = recruit / hire

So the sentence literally works like:

The company + is currently + recruiting.

正在 marks an action that is in progress right now.

It is similar to English is/are doing or currently doing.

So:

• 公司招聘 = The company recruits / is recruiting / hires, depending on context
• 公司正在招聘 = The company is recruiting right now

Adding 正在 makes the ongoing nature of the action clearer.

Both 在 and 正在 can show that an action is ongoing.

For example:

• 公司在招聘。
• 公司正在招聘。

Both can mean The company is recruiting.

The difference:

• 在 = simpler, very common in speech
• 正在 = a bit more explicit, often feels slightly more formal or emphatic

You can think of 正在 as right in the middle of doing.

Also:

• 正 by itself can add the idea of exactly / right now
• 在 marks ongoing action
• Together, 正在 strongly highlights that the action is happening at this moment

In Chinese, the object is often omitted if it is:

• obvious from context
• not important
• meant to be general

So 公司正在招聘 simply means the company is recruiting, without saying exactly whom.

If you want to add the object, you can:

• 公司正在招聘员工。 = The company is recruiting employees.
• 公司正在招聘销售人员。 = The company is recruiting sales staff.

So 招聘 can appear without an object when the meaning is general.

It can mean either, depending on context.

Chinese does not have articles like a and the. So 公司 by itself just means company.

In actual use, the listener figures out whether it means:

• a company
• the company
• this company / that company

from the situation.

So 公司正在招聘 could be understood as:

• The company is recruiting or
• A company is recruiting

depending on context.

It can cover both ideas, but it most commonly emphasizes recruiting / looking for people to fill positions.

A useful distinction:

• 招聘 = recruit, advertise positions, seek candidates
• 雇佣 = employ, hire, take someone on
• 录用 = formally accept/select someone for a job

So in 公司正在招聘, the focus is usually on the company being in the process of looking for new staff.

Yes.

公司招聘 is grammatical, but it is less specifically focused on right now.

Compare:

• 公司招聘。 = The company recruits / is hiring / hires
• 公司正在招聘。 = The company is currently recruiting

Without 正在, the sentence can sound more general or more like a statement of fact.

For example:

• 这家公司招聘有经验的人。 = This company hires people with experience.
• 这家公司正在招聘。 = This company is hiring right now.

Because 招聘 is a verb, and Chinese does not use 是 before ordinary action verbs.

Incorrect:

• 公司是正在招聘。

Correct:

• 公司正在招聘。

Use 是 mainly for linking nouns or noun phrases:

• 他是经理。 = He is a manager.

But with action verbs like 招聘, 吃, 工作, 学习, you do not use 是 before the verb.

Usually not in the same way.

公司正在招聘。 is about an action in progress.

If you say:

• 公司招聘了。

that sounds incomplete or unnatural in many contexts, because 了 often suggests a completed action or a new situation, and 招聘 often wants more information.

A more natural sentence might be:

• 公司招聘了很多员工。 = The company hired/recruited many employees.
• 公司开始招聘了。 = The company has started recruiting.

So for is recruiting now, 正在 is the natural choice.

Pinyin:

• 公司 = gōngsī
• 正在 = zhèngzài
• 招聘 = zhāopìn

Full sentence:

• gōngsī zhèngzài zhāopìn

Tone pattern:

• gōng = 1st tone
• sī = 1st tone
• zhèng = 4th tone
• zài = 4th tone
• zhāo = 1st tone
• pìn = 4th tone

One useful note: 正 can have different pronunciations in different words, but in 正在, it is pronounced zhèng.

It is quite neutral and natural. It would work well in:

• job ads
• company notices
• news
• everyday conversation

Because 招聘 is a somewhat standard word used in employment contexts, it can feel a little more formal than very casual expressions like:

• 招人 = to look for people / hire people

For example:

• 公司正在招聘。 = neutral, standard
• 公司正在招人。 = more colloquial

Both are common, but 招聘 is especially common in written and professional contexts.