Il responsabile della selezione legge la mia candidatura con attenzione.

In this sentence, responsabile is being used as a noun meaning the person in charge / the manager / the person responsible.

The form responsabile itself can be masculine or feminine in the singular:

• il responsabile = the male person in charge
• la responsabile = the female person in charge

So the article tells you the gender here. In your sentence, il shows that it is masculine.

Because di + la normally contracts in Italian:

• di + la = della

So:

• il responsabile della selezione

is the normal form.

This kind of contraction is very common in Italian:

• di + il = del
• di + lo = dello
• di + i = dei
• di + gli = degli
• di + le = delle

It specifies what kind of responsabile this is.

So:

• il responsabile = the person in charge
• il responsabile della selezione = the person in charge of recruitment / selection

This is a di phrase, very often used in Italian to connect one noun to another, similar to English of.

Legge is the third-person singular present tense of leggere = to read.

The subject is il responsabile, which is singular, so the verb must also be singular:

• io leggo = I read
• tu leggi = you read
• lui/lei legge = he/she reads

So Il responsabile ... legge ... means The manager/person in charge reads ...

It is pronounced roughly LEHD-jeh, with a strong gg sound like the j in judge, but doubled.

A useful thing to know: the double consonant matters in Italian.
So legge has a stronger, longer consonant sound than a single g would.

Also, legge is spelled the same as the noun meaning law, so context tells you which meaning it has:

• La legge = the law
• Lui legge = he reads

In Italian, possessive adjectives usually go with a definite article.

So Italian normally says:

• la mia candidatura
• il mio libro
• la tua casa
• i suoi documenti

This is different from English, where we just say my application, not the my application.

A famous exception is with many singular family words:

• mia madre
• tuo fratello

But candidatura is not a family noun, so la mia candidatura is correct.

Because the normal Italian order is:

article + possessive + noun

So:

• la mia candidatura
• il suo curriculum
• i nostri documenti

This word order is standard and very common.

Because la mia candidatura is the direct object of legge.

In Italian, as in English, verbs like read usually take a direct object without a preposition:

• Legge la mia candidatura = He/She reads my application
• Leggo il giornale = I read the newspaper

So you do not need a, di, or another preposition here.

Both are possible.

• con attenzione = with attention / carefully
• attentamente = carefully

So you could also say:

• Il responsabile della selezione legge la mia candidatura attentamente.

The version with con attenzione is very natural and common. Italian often uses a con + noun phrase where English might prefer an adverb.

The normal, neutral order here is:

subject + verb + object + manner

• Il responsabile della selezione legge la mia candidatura con attenzione.

But Italian word order is more flexible than English, especially for emphasis. For example, you might hear:

• La mia candidatura il responsabile della selezione la legge con attenzione.

That kind of change adds emphasis or changes the flow, but the original version is the most straightforward and natural for a learner.

Because it is just a normal common noun here, not a proper name.

Italian usually does not capitalize job titles or roles unless they are at the start of a sentence or part of a formal style choice.

So:

• il responsabile della selezione = normal
• Il responsabile della selezione = capitalized only because it starts the sentence

Not always. Grammatically, candidatura means candidacy or application, depending on context.

So it can refer to:

• a job application
• a political candidacy
• an application for a role or position more generally

In this sentence, because of il responsabile della selezione, it is naturally understood as a job-related application.