Atelier Hirono LLC
Jumpei Hirono
Enterprise Platform Builder for B2B Startups
I help B2B platform services, data platform, and AI startups turn early products into scalable product platforms, working directly with founders to align product, engineering, and go-to-market.
Current product leader for a Series B startup in retail. Former Microsoft Azure AI business development leader.
The Problem
Many startups ship a first product, then hit a wall. Sales asks for features. Engineering responds ticket by ticket. Product direction becomes fragmented. The company keeps shipping, but the product system itself does not scale.
What I Build
I help founders move from feature delivery to product platform thinking by connecting strategy, execution, customer value, and GTM into a system that can scale.
- Platform strategy beyond reactive roadmap work
- Alignment across product, engineering, sales, and support
- Operating rhythms that improve prioritization and learning
How I Work
- Fractional VP of Product for teams that need part-time product leadership and platform thinking
- Product / platform strategy engagements for clarifying ICP, value proposition, packaging, and the next stage of growth
Why Me
My background spans finance, marketing, sales, business development, and product management. That lets me work across functions and help founders align the company, not just manage a backlog.
- Product leader for a Series B startup in retail
- Microsoft Azure AI
- Built Microsoft AI business development in Japan from scratch, including partner ecosystem, training programs, community growth, and go-to-market evangelism
AI-Native Product Development
I actively use LLM-enabled workflows to accelerate product development and decision-making. The goal is not AI theater, but helping teams ship and learn faster.
Selected Writing
Contact
If you are building a B2B platform services, data, or AI company and want to talk, reach out on LinkedIn.