Personal Operating System
Jersey · GMTEst. 2026Get in touch →
Practitioner notes · AI applied to finance & operations

Jewel Nguyen

An operator who builds — turning back-office problems into systems that run themselves.
Case Studies · Selected Work

Things I built because the manual way annoyed me.

Each one started as a personal annoyance and ended as a repeatable system. Some live, some portfolio.

The Builds

Three systems, in production or portfolio
Reliability · Live

The System That Audits Itself

Automations fail silently — you only notice when something downstream breaks days later. So I built two checks on top of the work: a daily heartbeat that confirms every job actually ran, and a weekly pass that cross-checks whether my own notes, plans and status still agree. Blind spots surface as alerts, not nasty surprises.

Self-checking systems · silence-means-healthy alerting

Read the build note →
AI Governance · Live

Four Eyes on a Robot

Letting an AI build and change things unsupervised is how quiet mistakes reach production. So I borrowed the control every finance team already trusts — four-eyes review — and wired it into the machine: every piece of automated work runs plan → build → an independent fresh-eyes audit, and nothing ships without a human approving it.

Review controls · human-in-the-loop · trust earned in steps

Ask me about it →
Finance Ops · Case study

Building a Finance Function From Scratch

A newly merged, private-equity-backed group with no shared system and board reporting stitched together by hand each month. Over a year I designed the data model, automated the reporting, and stood up the first standard workflows — turning thirteen-step manual processes into one. The lesson: AI didn't win on model quality, but on ownership, process and clean data.

Post-M&A · ERP & reporting · AI-assisted build

Ask me about it →

How These Get Built

The pattern behind every project
01 · Scope

Find the leak.

Map the manual steps and lost context before writing a line of code.

02 · Build

Smallest system.

One automation that removes one step, wired into existing tools, documented to hand over.

03 · Run

Make it self-watching.

Schedules and alerts that only fire on failure. Silence means healthy.

Get in touch

Have a process that should be one click?

I'm open to conversations about building systems in finance & operations — and about any of the work above.