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Experienced enough to build. Curious enough to learn.

I'm Madhav, a product manager and two-time founder working on agentic AI, go-to-market and B2B SaaS. I co-founded WisOwl AI, an agentic hiring platform that was acquired. Before that I spent eight years growing CaaStle's ~$50M+ ARR SaaS platform.

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What I bring to your team

Agentic AI & GenAIWisOwl AI · co-founder · acquired

10K+jobseeker signups, plus 10+ recruitment firms and startups as customers
  • Took an agentic hiring platform from first build to acquisition: semantic matching on pgvector, and agents that source, reach out and run AI voice screens.
  • Grew with zero paid marketing.
  • Agentic AI product strategy

B2B SaaSCaaStle · 2017–2025 · New York, remote

300+brands on CaaStle's SaaS platform: 50+ retail and 250+ creator-led brands
  • Launched rental and subscription programs for Ralph Lauren, American Eagle, AllSaints, Express and Moss Bros.
  • Migrated two acquired luxury retailers with no business disruption, and led two senior PMs as Associate Director.
  • Fractional PM for B2B SaaS

GTM & growthSubscription commerce · PLG · launches

~$50M+ARR subscription business where I ran growth and consumer experience
  • 20% lift in trial-to-paid, and 30% revenue growth in 90 days from one channel roadmap.
  • Founder-led GTM twice: Medzin to 18,000 users on a $150K seed, WisOwl to acquisition with no ad spend.
  • GTM strategy for B2B SaaS

Two ways to work together

For founders · seed to Series B

Fractional or interim PM

One to three days a week inside your team for a quarter or more, or full-time cover while you hire. I own strategy, roadmap and delivery.

  • Agentic AI and RAG products, from prototype to production
  • GTM, pricing and onboarding for B2B SaaS
  • Subscription funnels, retention and A/B testing

Starts with a 30-min call and a one-page scope.

Book a scoping call How engagements work

For hiring managers, recruiters & founders

Full-time product role

Open to senior PM, group PM and head of product roles in agentic AI and B2B SaaS. Eight years remote with a New York team, so distributed teams are home ground.

  • Founder judgment from two startups, one acquired
  • Hands-on with LLMs, RAG, vector search and agent tooling
  • Managed senior PMs on a ~$50M+ ARR platform

Need a resume? Ask on the call or on LinkedIn.

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Read along instead.

One short essay a day on startups, AI and product, from someone who has shipped all three. Free on Substack.

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Experience

  • 2025–26WisOwl AI, co-founder & PM. Agentic hiring platform.Acquired
  • 2017–25CaaStle, PM to Associate Director. ~$50M+ ARR SaaS platform, New York (remote).
  • 2015–17Medzin, co-founder & head of product. Healthtech, $150K seed.
  • 2013–15LimeTray and Vigyan Bharati. SaaS onboarding and digital programs.

Full history on LinkedIn

Writing

An essay a day on Substack about startups and AI, and ten startup ideas every week.

Subscribe on SubstackAll essays

Podcast

Joy of Building Things: short conversations about zero-to-one work.

SpotifyApple Podcasts

Side projects

All projects

Questions

Are you open to full-time product roles?

Yes. I'm open to senior product roles in agentic AI and B2B SaaS, as well as fractional and interim work. A 30-minute intro call is the fastest way to check fit.

What does a fractional engagement look like?

One to three days a week inside your team for a quarter or more, owning strategy, roadmap and delivery. Interim full-time cover while you hire, scoped projects and advisory are also options. Compare the options.

Which time zones do you work with?

I'm based in Delhi and spent eight years working remotely with a New York company. US East Coast teams get a reliable morning overlap, UK and European teams overlap most of the day, and Indian teams get me in their time zone and in person in Delhi NCR.

What happens after the first call?

For fractional work, a one-page scope with outcome, cadence, duration and price. For a full-time role, whatever your process needs next. If I'm not the right person, I'll say so on the call and point you somewhere better.

Let's talk.

Building with agents, fixing a SaaS funnel, or hiring a product lead? Thirty minutes is usually enough to know if I can help.

Book a 30-min call

How the call works

  1. Pick a 30-minute slot that suits your time zone.
  2. Tell me what you're building or hiring for. No deck needed.
  3. Leave with a clear next step, even if that step isn't me.