Se l’azienda mi assume, inizierò lunedì.

Se means if. It introduces the condition:

• Se l’azienda mi assume = If the company hires me

In this sentence, it sets up the situation that must happen before the second part becomes true.

Because azienda starts with a vowel, la becomes l’ before it.

So:

• la azienda → l’azienda

This is a very common contraction in Italian with singular articles before vowels:

• l’amico
• l’idea
• l’azienda

Azienda usually means company, business, or firm.

In this sentence, l’azienda is naturally understood as the company that might hire the speaker.

Depending on context, azienda can refer to:

• a private company
• a business in general
• sometimes an organization or enterprise

Mi is the direct object pronoun meaning me.

Italian object pronouns normally come before a conjugated verb:

• mi assume = hires me
• literally: me hires

This is normal Italian word order. English puts me after the verb, but Italian usually puts mi before it.

Other similar pronouns are:

• ti = you
• lo / la = him / it / her
• ci = us
• vi = you all
• li / le = them

No. Here assume comes from assumere, and in this context it means to hire.

So:

• l’azienda mi assume = the company hires me

This is a very common point of confusion for English speakers because assume looks like the English verb assume, but here it means something different.

This is one of the most important grammar points in the sentence.

In Italian, when you talk about a real future condition, you normally use:

• present tense after se
• future tense in the main clause

So:

• Se l’azienda mi assume, inizierò lunedì.

Not:

• Se l’azienda mi assumerà, inizierò lunedì. (generally not the standard choice here)

This is similar to English, which also often uses the present after if:

• If the company hires me, I’ll start Monday.

not usually

• If the company will hire me...

Because it describes what the speaker will do if the condition is met.

Inizierò is the first person singular future simple of iniziare:

• io inizierò = I will start

The structure is:

• condition: Se l’azienda mi assume
• result: inizierò lunedì

So the hiring is the condition, and starting on Monday is the future result.

The accent in inizierò shows that the stress falls on the final syllable:

• ini-zie-rò

In writing, this accent is required on many future forms ending in -ò:

• parlerò
• andrò
• farò
• inizierò

It helps distinguish pronunciation and is part of correct spelling.

In Italian, days of the week usually appear without an article when you mean a specific day:

• lunedì = on Monday

So:

• inizierò lunedì = I’ll start on Monday

If you use an article with a day of the week, it often suggests habitual meaning:

• Il lunedì lavoro da casa = On Mondays / Every Monday I work from home

So in your sentence, no article is used because it refers to one specific Monday.

The comma is very normal here because the if-clause comes first:

• Se l’azienda mi assume, inizierò lunedì.

It helps separate the condition from the result.

If the order is reversed, the comma is often less necessary:

• Inizierò lunedì se l’azienda mi assume.

So the comma is standard and natural in the original sentence.

Yes. You can also say:

• Inizierò lunedì se l’azienda mi assume.

The meaning stays basically the same: I’ll start Monday if the company hires me.

The original version puts the condition first, which is very common when the speaker wants to frame the whole sentence around that condition.

Not in this sentence.

With a normal real condition like this, Italian uses the indicative, not the subjunctive:

• Se l’azienda mi assume, inizierò lunedì.

The subjunctive is not the standard form after se in this kind of sentence.

A learner often expects the subjunctive because the event is uncertain, but uncertainty alone does not automatically trigger the subjunctive after se.

Yes. Cominciare and iniziare both mean to begin / to start.

So this would also be correct:

• Se l’azienda mi assume, comincerò lunedì.

In many contexts they are interchangeable. Iniziare may sound a little more formal in some situations, but both are perfectly normal.

It is neutral and completely natural.

Nothing in the sentence is especially informal or especially formal. You could use it in:

• everyday conversation
• an email
• speaking to friends
• speaking about a job situation

If you wanted to sound a little more explicit, you could add a lavorare:

• Se l’azienda mi assume, inizierò a lavorare lunedì.

But the original sentence is already perfectly good Italian.