Is the word jornalista the same in Brazilian and European Portuguese?

Yes

The only difference between the usage of "jornalista" in Brazilian Portuguese and Continental Portuguese is pronunciation.

In Brazilian Portuguese, the vowels are generally more open and clearly articulated. The unstressed vowels in the word are pronounced with more clarity.

In Continental Portuguese, there is a phenomenon called "vowel reduction." Unstressed vowels (like the "a" at the end of the word) are often shortened or "swallowed," making them sound more like a neutral, muffled "uh" sound. The rhythm of the word in Portugal is also more "stress-timed," meaning the syllables between the main stresses are clipped much shorter than in Brazil.

Brazilian Portuguese Examples

1. Ela é uma jornalista muito famosa. (She is a very famous journalist.)
2. O jornalista chegou atrasado para a entrevista. (The journalist arrived late for the interview.)
3. Eu quero ser jornalista quando crescer. (I want to be a journalist when I grow up.)
4. Aquele jornalista está fazendo uma reportagem incrível. (That journalist is doing an incredible report.)
5. Os jornalistas estão cobrindo a manifestação. (The journalists are covering the protest.)

Continental Portuguese Examples

1. Ela é uma jornalista muito famosa. (She is a very famous journalist.)
2. O jornalista chegou atrasado à entrevista. (The journalist arrived late for the interview.)
3. Eu quero ser jornalista quando crescer. (I want to be a journalist when I grow up.)
4. Aquele jornalista está a fazer uma reportagem incrível. (That journalist is doing an incredible report.)
5. Os jornalistas estão a cobrir a manifestação. (The journalists are covering the protest.)