A profile is not a one-time project -- it should be revisited at natural checkpoints: after completing a significant project, a new certification, a role change, or roughly every three to six months even without a major change, since skills and priorities shift gradually and an untouched profile quietly becomes outdated. LinkedIn provides free analytics worth checking regularly: 'who's viewed your profile' shows the kind of people your current positioning attracts, and post-level impressions and engagement show which content pillars are actually resonating versus which are being ignored, letting you double down on what works rather than guessing. A sign that repositioning is needed is a mismatch between the opportunities you're attracting and the ones you actually want -- for example, if you're being approached for junior roles when targeting senior ones, that is a signal the profile's narrative, not just its formatting, needs to change.