Field Notes.

Operating principles and playbooks from years of hands-on growth work — paid acquisition, tracking, and the data that ties them together. Published when there's something worth saying.

Field note · 005 · Featured 06 Jul 2026

What is a fractional
growth engineer?

How the role differs from a fractional CMO, an agency and a full-time hire — what it costs, when it fits, and the questions to ask anyone wearing the title.

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№004Operating

The best growth teams ship faster than they strategize.

Three observations from years of growth work — and what makes the high-leverage teams different.

17 May 2026
№003Tracking

You don't have a data problem. You have a definitions problem.

Why "active user" means seven different things across your tools — and how to fix it in one afternoon.

02 May 2026
№002Paid

Server-side conversion APIs aren't optional any more.

iOS attrition, browser deprecations, and the work that recovers the signal most accounts are quietly losing.

18 Apr 2026
№001CRO

The five experiments every onboarding should run.

A field-tested playbook — what to test, in what order, and why sequence beats volume.

04 Apr 2026
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