Hi [Name],
I just applied for the [Job Title] role and wanted to reach out directly. I have spent 15 years in [CSM / implementation / PM] work and what caught my attention about [Company] was [one specific thing].
Happy to share more about my background if helpful.
Hi [Name],
I applied for the [Job Title] role about a week ago and wanted to follow up. I am still very interested and happy to answer any questions about my background.
Hi [Name],
Thank you for taking the time to speak with me today. I appreciated learning more about [specific thing from interview]. I am excited about the opportunity and look forward to next steps.