I’m Sanjai, a growth and product marketer who helps early-stage B2B SaaS companies build their growth foundation—from positioning and messaging to pricing pages, onboarding flows, referral programs, and activation mechanics.
I’ve spent the last two years at Retainful working across the full growth stack - messaging, homepage optimization, pricing strategy, onboarding design, activation loops, and retention. Now I write about what I’m learning and applying—teardowns of real products, frameworks for positioning and GTM, breakdowns of what makes onboarding stick, how to design referral programs that work, and pricing pages that convert.
This isn’t about surface-level tactics. It’s about understanding your market deeply enough to position differently, write copy that converts, design onboarding that activates, and build growth loops that compound.
I publish once a week on topics like:
Positioning and differentiation for crowded markets
Homepage and pricing page teardowns with rewrite principles
Onboarding and activation flow design
Referral program mechanics and growth loops
Value prop frameworks and messaging strategy
GTM strategy for early-stage products
If you’re building a B2B SaaS or AI product and want to get better at any of this, you’re in the right place.
If you ever want to talk through your product’s positioning, pricing page, onboarding, or growth strategy, just reply to any email. I actually read and respond.
—Sanjai Kathirvel
