Não deixe de atualizar o currículo, mesmo que o processo pareça longo.

Because this is a negative command directed at você.

In Brazilian Portuguese, commands for você use the present subjunctive form:

• deixar → deixe

So:

• Deixe... = Do...
• Não deixe... = Don’t...

That is why the sentence says Não deixe... rather than Não deixa...

Deixar de + infinitive is a very common structure.

By itself, deixar de fazer algo can mean to stop doing something or to fail to do something, depending on context.

In the expression não deixe de + infinitive, it usually means:

• don’t fail to...
• make sure you...
• be sure to...

So:

• Não deixe de atualizar o currículo = Be sure to update your résumé / Don’t forget to update your résumé

It is more idiomatic than translating word by word as don’t leave of updating.

Because deixar de is a fixed expression.

The verb deixar on its own means to leave, to let, or to allow, but in this pattern it becomes:

• deixar de + infinitive

Examples:

• Ela deixou de fumar. = She stopped smoking.
• Não deixe de ligar. = Don’t forget to call / Be sure to call.

So the de is required by the structure, not by atualizar.

Portuguese often uses the definite article more often than English does.

Here, o currículo means the résumé/CV, but in natural English we often just say your résumé or simply the résumé, depending on context.

In Portuguese, using the article can make the noun sound more natural and complete:

• atualizar o currículo

If the speaker wanted to be extra explicit, they could also say:

• atualizar seu currículo

But o currículo sounds perfectly normal.

Mesmo que introduces a concessive idea, similar to:

• even if
• even though

In this sentence, it means something like:

• even if the process seems long
• even though the process may seem long

It sets up a contrast:

• Don’t fail to update your résumé, even if the process seems long.

This expression commonly triggers the subjunctive, which is why you see pareça later.

Because mesmo que normally requires the subjunctive mood.

The verb is parecer:

• indicative: parece
• subjunctive: pareça

So:

• o processo parece longo = the process seems long
• mesmo que o processo pareça longo = even if the process seems long

The subjunctive is used because the clause is presented in a more hypothetical, concessive, or uncertain way.

The subject is o processo.

So the structure is:

• o processo = subject
• pareça = verb
• longo = adjective describing the subject

Literally:

• even if the process may seem long

So longo agrees with processo, which is masculine singular.

Because longo describes o processo, and processo is a masculine singular noun.

Adjectives in Portuguese usually agree with the noun they describe:

• processo longo = masculine singular
• etapa longa = feminine singular
• processos longos = masculine plural
• etapas longas = feminine plural

So longo is the correct form here.

It depends on context, but in a sentence about updating a résumé, o processo most likely refers to something like:

• the application process
• the hiring process
• the overall procedure involved

Processo is a broad word in Portuguese, just like process in English. It does not have to mean only a legal case.

So here it probably means the steps involved in applying or moving forward professionally.

Yes. The command form would change depending on who you are addressing.

For você:

• Não deixe de atualizar o currículo...

For tu:

• Não deixes de atualizar o currículo...

For vocês:

• Não deixem de atualizar o currículo...

For o senhor / a senhora:

• Não deixe de atualizar o currículo...

So deixe shows that the original sentence is aimed at você or a formal singular o senhor / a senhora.

Yes, it is natural and correct here.

The part after the comma:

• mesmo que o processo pareça longo

is a subordinate clause adding a concessive idea. In Portuguese, it is very common to separate that kind of clause with a comma, especially when it comes after the main clause.

So the punctuation helps the sentence read clearly:

• Não deixe de atualizar o currículo, mesmo que o processo pareça longo.

It sounds like encouraging advice or a gentle recommendation, not a harsh order.

Depending on context, a Brazilian speaker might hear it as:

• Make sure to update your résumé
• Don’t forget to update your résumé
• Be sure to keep your résumé up to date

So although it is grammatically a command, the tone is often practical and supportive rather than strict.