Subject: [job title] at [company]
Hey [hiring manager's name] —
I️ think I️ might be a great fit for the [job title] at [company]. I am a [job function] with [your experience] in [industries you've worked in]. In particular, I️ worked [your best accomplishment(s) that are relevant to the job description].
As someone who has [reason you can relate to the company's mission], I️ truly resonate with your mission and what you are building at [company]. [Expand on the reason you can relate to their mission].
Attached I️ have included my resume and below is a link to my LinkedIn profile.
Thanks in advance for your consideration,
[Your name]
[your linkedin profile link]