Tinc no només el currículum sinó també experiència laboral.

Because Catalan usually drops the subject pronoun when it is clear from the verb ending.

• tinc already means I have
• the verb form tells you it is 1st person singular

So Tinc is normally enough. You would add jo only for emphasis or contrast, for example:

• Jo tinc experiència, però ell no. = I have experience, but he doesn’t.

Tinc is the 1st person singular present indicative of tenir = to have.

So:

• tenir = to have
• tinc = I have

This is an irregular verb, so the form is not something you can predict just by adding a regular ending.

It is the Catalan equivalent of not only ... but also ....

In this sentence:

• no només = not only
• sinó també = but also

So the structure is:

• no només A sinó també B

Here:

• A = el currículum
• B = experiència laboral

Both parts are being presented as things the speaker has.

Yes. They are both direct objects of tinc.

You can think of the sentence as roughly equivalent to:

• Tinc el currículum i també tinc experiència laboral

The actual sentence avoids repeating tinc by using the paired structure no només ... sinó també ....

This is a very common question.

• sinó = but rather / but instead / but also in this kind of contrast structure
• si no = if not

In your sentence, it must be sinó, written as one word and with an accent:

• no només ... sinó també ...

If you wrote si no, it would change the meaning completely.

Because the two noun phrases behave a little differently.

• el currículum sounds like a specific résumé/CV
• experiència laboral is more like an uncountable, general quality: work experience

Catalan often uses no article with abstract or mass-type ideas like this, especially in job-related language.

So:

• el currículum = the CV / the résumé
• experiència laboral = work experience

If the context changed, other article choices could also be possible.

Yes. That is also correct, and many learners may find it easier to understand because the not only ... but also ... structure starts earlier in the sentence.

Compare:

• Tinc no només el currículum sinó també experiència laboral.
• No només tinc el currículum, sinó també experiència laboral.

Both are grammatical. The difference is mainly one of focus and style.

• With Tinc no només..., the contrast falls more directly on the things you have.
• With No només tinc..., the paired structure is highlighted from the start.

Yes. currículum is a normal and common word, especially in formal or professional contexts.

It is usually masculine:

• el currículum

Its plural is:

• els currículums

You will also often hear or see CV, especially in practical job-search contexts.

Yes. experiència laboral is very natural and standard, especially in employment, recruitment, and CV contexts.

A close alternative is:

• experiència professional = professional experience

That can sound slightly more formal or polished, depending on context.

A phrase like experiència de treball would be understandable, but it is usually less idiomatic in this kind of sentence.

A comma is often used there in writing, especially to make the contrast clearer:

• Tinc no només el currículum, sinó també experiència laboral.

In a short sentence, you may also see it without a comma. So the version without a comma is understandable, but the comma is often a good stylistic choice in formal writing.

També strengthens the parallel with English but also.

So:

• no només ... sinó també ... = not only ... but also ...

Sometimes Catalan can use sinó without també, but in this structure sinó també is very common and sounds complete and balanced.