confusion about the past perfect continuous

I'm writing the profile section of my résumé/CV.

I'm hesitating about the proper verb form:

During my work experience I have applied engineering methods to solve problems.

I have been involved in the development of new products.

Is it right? Or should I use "I have been applying engineering methods" instead?

More information: I still do apply that methods. I'm not involved in the development anymore.

Regards

‘I have been applying engineering methods’ would better convey the fact that you are continuing to do so.

If you were involved in the development of new products in the past, but are not involved any more, it might be preferable to write ‘I was involved . . .’ and then give more details about when and how long you were involved.