To wish someone “good luck” professionally, say “Best of luck with your future endeavors” or “wishing you all the best.” These synonyms for good luck mean that you hope the person has great success with a future job or professional situation.
This saying works well in farewell messages to professional or academic contacts who are starting new opportunities.
When you’re writing messages to colleagues, QuillBot’s free Paraphraser can help you find synonyms for phrases like “good luck.”