Justin Winter
Head of Growth at Forager
Justin leads growth at Forager, the B2B data API for people, companies and jobs. He writes about how platform teams put contact and company data inside their products: waterfalls, enrichment APIs, data feeds and the billing rules behind them.
He is a founder and growth executive who has worked in VC-backed startups and B2B SaaS, and he advises software companies on growth.
He writes The Compositor, a series on how companies are built from specialized, proven parts, and lives in the San Francisco Bay Area.
Posts by Justin
All posts-
Job postings data: turning a feed or API into hiring signals
What a job post record contains, how to query it by company and date, and how to turn new posts into a hiring signal your users can act on.
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B2B data decay: how to measure it on your own list
Every data-decay article quotes someone else's rate. Here is how to compute yours from a sample, per field, using the date each record was last checked.
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Enrichment match rate: what it measures and what it hides
Match rate is records returned over records sent. It says nothing about whether the number connects or reaches the right person. How to measure the rest.
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Data enrichment API: how to add enrichment to your product
What a data enrichment API takes and returns, how it is billed, and when a bulk feed or a waterfall slot is the better shape for your product.
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How to build an enrichment waterfall into your product
A developer's guide to waterfall enrichment: order the steps, run each one only on misses, pay only on found, and handle not-found, errors and retries.