12+
Years across ecommerce, marketplaces, and software.
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Who we are
Small studio.
Deep commerce DNA.
Ensembl3 builds apps, agents, and custom systems for merchants whose operations need sharper product thinking, faster prototypes, and production-grade software.
2018
Return Magic acquired by Shopify.
0 to 1
Product lead work at Shopify on platform products.
Now
Apps, agents, and bespoke merchant systems.
Founder and focus
Research, product, prototype, ship.
Guillaume Racine has spent 12+ years in commerce software: Amazon commerce work, Return Magic, and product leadership at Shopify on zero-to-one platform products including returns APIs, customer accounts, and developer-facing APIs.
That background shapes the studio: start from customer and operator truth, prototype the risky part, then ship the smallest system that makes the workflow better.
What we do
- Custom Shopify apps and workflow systems
- AI agents for catalog, merchandising, gifting, and ops
- Product discovery, customer research, and prototype sprints
- Technical product advisory for commerce teams
Best fit: merchants and commerce teams with a workflow too important to keep patching together manually.
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