One of the twists in the software industry is that something that looks braggy to a non-technical recruiter can look irrelevant to someone in the know, or from the other direction something that looks braggy to a tech person can be meaningless to a non-tech person.

For example, if you say that you "developed software that saved the company $X million/year," that might look good to a non-tech person but a tech person will understand that could mean nothing. Maybe you spellchecked comments in a sub-subcomponent of a project a thousand people worked on. On the other hand you might say you "worked on v1 of the Frobnicator library" which might look like nothing to a recruiter but which is a legendary accomplishment in the field.

In my case I just say what I did in plain language that includes a bunch of keywords and hope that's enough.