Nhà tuyển dụng ở công ty.

Nhà tuyển dụng means employer or recruiter, depending on context.

The word nhà does not only mean house. In many compounds, it can also mean something like person associated with / professional in. For example:

• nhà báo = journalist
• nhà văn = writer
• nhà nghiên cứu = researcher

So nhà tuyển dụng is literally something like the hiring person/party.

A small nuance: in job-related Vietnamese, nhà tuyển dụng often refers to the employer or the hiring side in general, not always a specific individual recruiter. If you want to be very specific about a person whose job is recruiting, nhân viên tuyển dụng or người tuyển dụng may also be used.

Here, ở means to be at / to stay at / to be located at.

So in Nhà tuyển dụng ở công ty, ở công ty means at the company.

Common uses of ở include:

• Tôi ở nhà. = I am at home.
• Cô ấy ở trường. = She is at school.
• Anh ấy ở Hà Nội. = He is in Hanoi / He lives in Hanoi.
  (The exact meaning depends on context.)

So in your sentence, ở is marking location.

Vietnamese does not always use a separate word like English is/am/are.

In this sentence, ở itself carries the idea of being at a place, so you do not need an extra verb like is.

That is why:

• Nhà tuyển dụng ở công ty. = The recruiter is at the company.

Using là here would usually be wrong:

• Nhà tuyển dụng là ở công ty. ✘

That is because là is mainly used to link one noun to another noun, as in:

• Anh ấy là giáo viên. = He is a teacher.

But for location, Vietnamese normally uses ở, not là.

The basic structure is:

• Subject + ở + location

So:

• Nhà tuyển dụng = subject
• ở = is at
• công ty = location

This is very similar to English The recruiter is at the company, except Vietnamese does not need an article and does not use a separate is here.

Vietnamese does not have articles like English a/an/the.

Whether a noun means a recruiter, the recruiter, or recruiters in general is usually understood from context.

So:

• nhà tuyển dụng could mean a recruiter, the recruiter, or even employers in a general sense
• công ty could mean a company or the company

If you want to make things more specific, Vietnamese often uses other words, such as:

• một nhà tuyển dụng = a recruiter
• nhà tuyển dụng đó = that recruiter
• công ty này = this company
• công ty đó = that company

By itself, Nhà tuyển dụng ở công ty most naturally means the recruiter is at the company as a location statement.

It does not automatically mean works for the company.

If you want to say someone works there, Vietnamese usually says that more clearly, for example:

• Nhà tuyển dụng làm việc ở công ty. = The recruiter works at the company.
• Nhà tuyển dụng làm ở công ty. = The recruiter works at the company.

So ở alone usually focuses on where someone is, not necessarily on employment.

Not always. Vietnamese strings like this can sometimes be understood in more than one way, depending on context.

With a period and no extra words, it is naturally read as a full sentence:

• Nhà tuyển dụng ở công ty. = The recruiter is at the company.

But the same sequence could also be part of a larger noun phrase, such as:

• Nhà tuyển dụng ở công ty này rất thân thiện.
  = The recruiter at this company is very friendly.

So Vietnamese often relies heavily on context and punctuation.

Vietnamese nouns usually do not change form for singular or plural.

So nhà tuyển dụng can be:

• singular: the recruiter
• plural: the recruiters
• generic: employers / recruiters in general

Context tells you which one is meant.

If you want to make number clearer, Vietnamese can add words such as:

• một nhà tuyển dụng = one / a recruiter
• các nhà tuyển dụng = recruiters
• những nhà tuyển dụng = recruiters / some recruiters

No, not in this sentence.

Classifiers in Vietnamese are commonly used with numbers, demonstratives, and some noun phrases, for example:

• một công ty = a company
• công ty này = this company

But in Nhà tuyển dụng ở công ty, no classifier is needed.

You also generally do not put a classifier before occupational or role nouns in a plain sentence like this unless the structure specifically calls for it.

A rough pronunciation guide is:

• Nhà — low falling tone
• tuyển — hỏi tone
• dụng — heavy/nặng tone
• ở — hỏi tone
• công — level tone
• ty — level tone

Very rough English-style approximation:

• Nhà tuyển dụng ở công ty
  ≈ nyah twee-en zoong uh kong tee

But that approximation is imperfect. The tones matter a lot, especially on:

• nhà
• tuyển
• dụng
• ở

Also note:

• d in southern Vietnamese can sound like English y
• d in northern Vietnamese sounds more like z

So dụng will sound different depending on accent.