Welcome & Win-Back Email Sequence Writer

We run an online store (a course platform works too — I'll share specifics once we agree on scope) and want to move away from one-off newsletters written whenever someone remembers to. Right now a new subscriber gets a single generic email and then nothing, so we lose people in the week they're most curious about us. I'm looking for someone who thinks in sequences rather than single messages: each letter should pick up where the last one left off and nudge the reader toward a clear next step, not just repeat the same pitch in different words.

The core piece is a welcome series for people who just subscribed or made their first purchase — introduce the brand, build trust, lead naturally toward a second purchase without sounding pushy. Alongside it I need a short reactivation sequence for subscribers who've gone quiet for months, with a different hook than the welcome letters, plus a compact set of sales-driven emails tied to a specific offer or seasonal promotion. Tone should read like a real person wrote it, and every email needs an alternate subject line for testing.

Rough scope:
— 5-7 welcome letters with a logical arc: intro, value, proof, offer
— 3-4 reactivation letters with a distinct angle for lapsed readers
— 2-3 promo letters tied to one concrete offer
— Subject line variants and short preview text for each email