I transitioned in role at my employer. I did it big-bang, changing my presentation, name and pronouns over a weekend.
I'm in my 40's with children, an Ex, and a long career, so stealth wasn't a practical option.
It's a very personal decision, but I decided to be very visible in my company, as there were no other visible trans* role models at that time.
My first point of contact at work was having a confidential chat with someone from HR, and I then brought my line manager into a follow meeting so we could plan the steps.
Good luck! X
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