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THE PRODUCT ENGINEER / RESEARCH

The research behind the Field Notes.

Each report publishes its data, method and limits, so every number in the Field Notes can be checked.

Working definition · v0.5

The Product Engineer Mental Model

What does a Product Engineer actually do? A working definition from 15 public practitioner sources and 74 verbatim excerpts: The Product Engineer Path from the user's problem to the decision, the build and what you learn after shipping, and the 11 practices along it.

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Edition Sep–Oct 2026

Product Engineer Opportunity Map

77 job postings titled Product Engineer read against the Mental Model: which ask for all of The Product Engineer Path, which of the 11 practices they ask for, and what they offer. Every posting, mark and excerpt, with the data file.

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