Fractional Head of Data
for Shopify & D2C Brands
I become your one-person data team for $5–50M e-commerce brands.
Unify Shopify, Klaviyo, Meta, Amazon, warehouses and ads into one single source of truth that doesn’t break so your numbers finally make sense and you can go back to growing.
Precision Advisory
Focused engagements designed to stabilize systemic infrastructure and secure intellectual capital in complex digital environments.
Data Unification & Audit
Full audit of your scattered data stack. I show you exactly why your numbers never match across Shopify, ads, Klaviyo, Amazon and your warehouse and what it’s costing you in bad decisions.
Single Source of Truth
I build and run one clean, always-reliable data foundation. Real-time orders, inventory, customer behavior, ad performance and P&L all in one place that actually works.
Always-On Data Reliability
Using my patented self-healing ETL technology (already cited by Bank of America & PNC), your pipelines stop breaking during big sales or new channel launches. No more firefighting or guessing.
Led by someone who solves
your exact data pain.
I’m Justus Moeller. I run all the data for a handful of $5–50M Shopify and D2C brands so founders can stop fighting over dashboards and get back to selling.
Most of my clients are marketers, operators, or ex-retail people not engineers. They live in Shopify + Klaviyo + Meta + Amazon + warehouse hell and feel the pain of wrong numbers every single day.
I become their one-person data team and give them a single source of truth that actually works.
Previously built production data systems at Fortune 500 companies. My self-healing ETL patent is cited by Bank of America and PNC.
Proven at Scale
My self-healing ETL systems and data architecture have been battle-tested in production and cited by major financial institutions.
Ready for data you can actually trust?
Book a quick 15-minute call. I’ll review your current Shopify + ads + Klaviyo setup and show you the biggest leaks and opportunities no pitch, just a real audit.
Book a 15-min Data Audit