Welcome to Arc Theory

The technical partner
your team has been missing.

A one-operator practice for technical and operational leaders who need someone to take a hard problem end-to-end — diagnosis, build, documentation, and a clean handoff.

Making the tools that make your business.

We codify organizational processes and decision logic into intelligent systems.

Generating code is easy now. Systems that survive real operations — the edge cases, the compliance, the scale — are not. That's the bar we build to.

Systems Architecture

We map how your operation actually runs, then design the system that should replace it — before a line of code gets written.

Integrations & Data

Your tools, connected — one source of truth instead of the same numbers re-entered three times.

AI & Automation

Applied where it genuinely moves the work forward — never bolted on for its own sake.

Process Design

The tech is half of it. We redesign how your team works so people and systems move together.

Meet
Danielle.

Danielle McKee is the founder of Arc Theory, a one-operator practice for solutions architecture, fractional technical leadership, and AI workflow design. She works across technical stacks and software — enterprise systems at Airbnb, Apple Music and Apple TV+, operations transformation at Deloitte — with a throughline that runs back through neuroscience research and applied-AI finance.

About me — the full background
operator.jpg
Danielle McKee, founder of Arc Theory
Danielle McKeefounder / operator
Enterprise experienceSolo technical architect on Airbnb's enterprise systems (ongoing) · Formerly Apple (Music & TV+).

Better systems.
Measurable progress.

Clearer architecture, connected workflows, and less work holding everything together. These are the outcomes we work toward.

  • 01Technical debt reduction
  • 02Margin expansion & cost control
  • 03Reduced administrative burden
  • 04Quantifiable delivery ROI

Fiscal-Sponsorship Platform

One integration layer between Airtable, Ramp, and QuickBooks — and nearly twice the clients served each month, with no added headcount.

Read the case
1.9×Clients served / month

Three ways
to move forward.

Improve what’s there, build what’s missing, or bring technical leadership into your team. Where you start shapes the work.

Start with a free fit call.
Ongoing partnership from $15,550/mo.

Explore engagements & pricing

Book an intro call.

Tell me about the problem you're staring at — the shape of it, the constraints, and how you'd know it's solved. I read everything and reply within one business day with times.

or email directlydanielle@arctheory.io