My most useful tip for writing job postings is the same as my most commonly shared tip for writing, period: show, don't tell.
You want to give lots of little, hard-to-lie details that SHOW you mean what you're saying.
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Don't write 'you'll have a lot of autonomy'. Write 'we want you to iterate on picking, experimenting, and measuring new marketing channels, with the support of leadership'.
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Don't write 'you'll receive on-the-job training'; write 'you don't need to have domain experience because we'll teach you that. What we need you to have is a strong grasp of marketing fundamentals, so you can hit the ground running on execution.'
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I mean, I think this is all fairly obvious, but it's surprising how often the quality of a job posting goes up the instant I say 'show, don't tell', and then redline all the parts where the author is telling.
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(This also assumes that the overall structure of the JD is sound — you need to answer the 'why is this job opportunity attractive?' question up front.)
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