It's important to make sure you're constantly re-engaging with people and maintaining the relationships that you previously made over the years working on so many different projects.
Things like a website or a well detailed up to date CV are really important though and they will need to be tweaked depending on the jobs that you are going for.
I would recommend putting together a website with client testimonials and significant projects, being as specific as possible about the role you played and the overall outcome.
Outside of talking to recruiters and cold approaches via applications and applying for jobs, I'd recommend looking at things like network groups in your sector.
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