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True North NexTech

Data Foundations & Governance

Lineage, quality, and governance built to carry AI workloads — the layer most AI programs discover too late.

The approach

Most AI initiatives do not fail on the model. They fail on the data underneath it.

A pilot works because someone hand-picked the inputs. Production fails because nobody can trace where the data came from, nobody measured its quality, and nobody governed who could reach it. By the time this surfaces, the model has already been blamed.

This is the work I specialize in. Data lineage you can actually follow, quality instrumented rather than assumed, and governance that survives an audit — designed specifically for the demands AI places on a data estate, which are different from and heavier than traditional analytics.

It applies whether you are preparing for your first AI use case or trying to work out why the last three stalled.

Proof

Retiring a Paid Data Vendor

A provenance and confidence layer over 7.4M healthcare providers — re-sourced onto authoritative registries, with every field carrying where it came from and how much to trust it

7.4M
Providers in the enriched spine
94.9%
License records from authoritative sources
34
State licensing boards onboarded
14
States with paid verification fully retired
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Documentation That Cannot Go Stale

A governance platform that reverse-engineers a 322-table healthcare data model into published, business-readable documentation — regenerated from live sources every morning

2,451
Fields documented and curated
322
Tables covered
213
Invisible data gaps surfaced
65+
Consecutive unattended daily runs
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Governance Out of Spreadsheets

A spec-driven admin application that let business analysts own a healthcare provider data model directly — versioned, auditable, and with no engineer in the loop

~4 weeks
Build time, solo
~2,100 lines
First-party source
~10 lines
Cost of adding a governed table
0
Engineers needed for a mapping change
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Moving a Catalog That Cannot Be Moved

A recreate → deep clone → cutover playbook for migrating Unity Catalog storage roots, with a mandatory human gate in front of the one irreversible step

None exists
SQL command that moves a catalog
5 of 6
Reversible steps in the playbook
1
Mandatory human sign-off gates
Yes
Delta history preserved
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Owning the Risk, Not the System

Setting target-state architecture and holding approval authority on the client side, as a national healthcare registry moved off a vendor-controlled stack it could not see into

250M
Member records ingested weekly
1.2 TB/wk
Compressed volume at the raw layer
12 weeks
Architecture & initiation phase
6
Medallion layers designed
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