La descripción del puesto incluye el requisito imprescindible.

Because in Spanish, de + el normally contracts to del.

So:

• de el puesto → del puesto

This is a very common contraction, just like:

• a + el → al

So la descripción del puesto literally has of the position/job role inside it.

One useful detail: this contraction happens with the masculine singular article el, but not with la, los, or las.

• de la empresa
• de los empleados
• de las funciones

Because the subject is La descripción del puesto, which is singular.

The sentence breaks down like this:

• La descripción del puesto = subject
• incluye = verb
• el requisito imprescindible = direct object

Even though del puesto contains another noun, the main noun of the subject is descripción, and that is singular. So the verb must also be singular:

• La descripción ... incluye
• not La descripción ... incluyen

If the subject were plural, then you would use incluyen:

• Las descripciones del puesto incluyen...

Here, puesto means something like position, post, or job role.

In workplace Spanish, especially in Spain, puesto is very common when talking about a specific role in an organisation:

• descripción del puesto = job description / position description
• puesto de trabajo = job position / workstation, depending on context

Trabajo is more general and often means work or job in a broader sense.
So:

• puesto focuses more on the role or position
• trabajo is often broader and less specific

That is why descripción del puesto sounds very natural in HR or formal employment contexts.

In Spanish, nouns have grammatical gender, and the article must agree with the noun.

So here:

• descripción is feminine → la descripción
• puesto is masculine → el puesto
• requisito is masculine → el requisito

This gender is grammatical, not necessarily logical from the meaning.

Also notice that each noun controls its own article separately:

• La descripción
• del puesto = de + el puesto
• el requisito imprescindible

A useful extra point: imprescindible has the same form for masculine and feminine singular:

• el requisito imprescindible
• la condición imprescindible

In the plural, it becomes:

• los requisitos imprescindibles
• las condiciones imprescindibles

Because in Spanish, adjectives often come after the noun, especially in neutral, standard wording.

So:

• requisito imprescindible = the normal, straightforward order

This is very common in formal or factual language.

If you put the adjective before the noun, it often sounds more literary, emphatic, or stylistically marked. So imprescindible requisito is possible, but it is not the most neutral choice here.

For a learner, the safest default is:

• noun + adjective

especially in sentences like this one.

Not exactly, although they can overlap.

• imprescindible = essential, indispensable, something you cannot do without
• obligatorio = mandatory, required by rule

So the nuance is:

• imprescindible focuses on necessity
• obligatorio focuses on obligation

In some job-related contexts, both may be possible, but they are not identical.

For example:

• un documento obligatorio = a document you are required to provide
• una herramienta imprescindible = a tool that is essential

So requisito imprescindible suggests a requirement that is absolutely necessary or essential.

Using el suggests that it is a specific essential requirement, probably one already known from the context.

• el requisito imprescindible = the essential requirement
• un requisito imprescindible = an essential requirement

So the definite article el makes it sound more specific or context-based.

In real life, both are possible, depending on what you want to say:

• La descripción del puesto incluye un requisito imprescindible.
  This introduces one essential requirement.

• La descripción del puesto incluye el requisito imprescindible.
  This refers to a particular essential requirement, as if the speaker and listener already know which one.

Without context, un requisito imprescindible may sound more natural in many situations, but el is still grammatically fine if the context makes the requirement specific.

Incluye is the third-person singular present tense of incluir.

Conjugation in the present:

• yo incluyo
• tú incluyes
• él / ella / usted incluye
• nosotros / nosotras incluimos
• vosotros / vosotras incluís
• ellos / ellas / ustedes incluyen

In this sentence, it matches La descripción del puesto, which is a third-person singular subject.

A useful thing to notice is that incluir is not fully regular in all forms, because of the y in some present-tense forms:

• incluyo
• incluyes
• incluye

But the sentence form itself is very straightforward: includes = incluye.

Because the stress falls on the last syllable: -ción.

In Spanish, words ending in a vowel, n, or s are normally stressed on the second-to-last syllable unless there is a written accent. Since descripción is stressed on the last syllable, it needs the accent mark.

So:

• descripción

The ending -ción is extremely common in Spanish and often corresponds to English nouns ending in -tion:

• descripción
• información
• comunicación
• situación

This is a very useful spelling pattern to recognise.

Yes. It is a very standard Spanish structure:

• subject + verb + object

So:

• La descripción del puesto = subject
• incluye = verb
• el requisito imprescindible = object

This word order is natural, clear, and common in both spoken and written Spanish.

Spanish can sometimes vary word order more than English, but in a formal sentence like this, the order is very normal and expected. That makes it a good model sentence for learners.