ABOUT SEAN RHEA

The operating partner who builds the machine

I am not a deputy, and I am not here to take your seat. I build the system your company now requires, so you can return to the work only you can do.

ABOUT SEAN RHEA

The Operating Partner Who Builds the Machine

I am not a deputy, and I am not here to take your seat. I build the system your company now requires, so you can return to the work only you can do.

28

years in technology operations

3

Chief of Staff appointments

$620M

technology portfolio governed

1,600

engineers supported

28

years in technology

operations

3

Chief of Staff

appointments

$620M

technology portfolio

governed

1,600

engineers

supported

0
years in technology operations
0
Chief of Staff appointments
$0M
technology portfolio governed
0
engineers supported

THE RECORD

Judgment built inside serious engineering organizations

“Everything reports green” is not an acceptable answer. I learned that as a crew member on Marine One, where the status of the aircraft is never a matter of opinion.

The discipline started in the United States Marine Corps, on the helicopter that carries the President. Twenty-eight years in technology followed: twelve at Dell, three at AMD, and thirteen at General Motors, moving from software engineering through program leadership into three Chief of Staff appointments. The numbers on the front page are the outcomes. This page is how they happened.

The 12-to-110 scale-up ran on an 18-month clock, during a shift from outsourced to internally delivered analytics. I co-designed the organizational structure and the hiring strategy, including a senior-to-junior pairing model that let the team grow without an all-senior payroll. That is how you scale capability under a real budget, and it is the same thinking founder-led companies need.

The operating model shift, from roughly 20 percent internally delivered capability to 90, meant building execution muscle inside the business instead of renting it. Through that transformation I served as executive proxy in the steering forums, trusted to hold the seat when decisions could not wait. And the systems held after I moved on: a governance architecture I designed was adopted into GM corporate policy, and a reporting platform I delivered still runs enterprise decisions today. I build systems designed to outlast their author.

The $1.5 billion was long-term cloud contractual exposure, taken off the table through financial modeling and vendor negotiation. Any founder fighting a cloud bill knows that number does not happen by accident.

Founder-led companies don't need the bureaucracy. They need the twenty percent of that discipline that does eighty percent of the work, installed without slowing anyone down. That is the work of Rhea Advisory.

THE RECORD

Judgment Built Inside Serious Engineering Organizations

“Everything reports green” is not an acceptable answer. I learned that as a crew member on Marine One, where the status of the aircraft is never a matter of opinion.

The discipline started in the United States Marine Corps, on the helicopter that carries the President. Twenty-eight years in technology followed: twelve at Dell, three at AMD, and thirteen at General Motors, moving from software engineering through program leadership into three Chief of Staff appointments. The numbers on the front page are the outcomes. This page is how they happened.

The 12-to-110 scale-up ran on an 18-month clock, during a shift from outsourced to internally delivered analytics. I co-designed the organizational structure and the hiring strategy, including a senior-to-junior pairing model that let the team grow without an all-senior payroll. That is how you scale capability under a real budget, and it is the same thinking founder-led companies need.

The operating model shift, from roughly 20 percent internally delivered capability to 90, meant building execution muscle inside the business instead of renting it. Through that transformation I served as executive proxy in the steering forums, trusted to hold the seat when decisions could not wait. And the systems held after I moved on: a governance architecture I designed was adopted into GM corporate policy, and a reporting platform I delivered still runs enterprise decisions today. I build systems designed to outlast their author.

The $1.5 billion was long-term cloud contractual exposure, taken off the table through financial modeling and vendor negotiation. Any founder fighting a cloud bill knows that number does not happen by accident.

Founder-led companies don't need the bureaucracy. They need the twenty percent of that discipline that does eighty percent of the work, installed without slowing anyone down. That is the work of Rhea Advisory.

THE RECORD

Judgment Built Inside Serious Engineering Organizations

“Everything reports green” is not an acceptable answer. I learned that as a crew member on Marine One, where the status of the aircraft is never a matter of opinion.

The discipline started in the United States Marine Corps, on the helicopter that carries the President. Twenty-eight years in technology followed: twelve at Dell, three at AMD, and thirteen at General Motors, moving from software engineering through program leadership into three Chief of Staff appointments. The numbers on the front page are the outcomes. This page is how they happened.

The 12-to-110 scale-up ran on an 18-month clock, during a shift from outsourced to internally delivered analytics. I co-designed the organizational structure and the hiring strategy, including a senior-to-junior pairing model that let the team grow without an all-senior payroll. That is how you scale capability under a real budget, and it is the same thinking founder-led companies need.

The operating model shift, from roughly 20 percent internally delivered capability to 90, meant building execution muscle inside the business instead of renting it. Through that transformation I served as executive proxy in the steering forums, trusted to hold the seat when decisions could not wait. And the systems held after I moved on: a governance architecture I designed was adopted into GM corporate policy, and a reporting platform I delivered still runs enterprise decisions today. I build systems designed to outlast their author.

The $1.5 billion was long-term cloud contractual exposure, taken off the table through financial modeling and vendor negotiation. Any founder fighting a cloud bill knows that number does not happen by accident.

Founder-led companies don't need the bureaucracy. They need the twenty percent of that discipline that does eighty percent of the work, installed without slowing anyone down. That is the work of Rhea Advisory.

HOW I THINK

Three convictions behind the work

It's a system problem, not a founder problem.

The informal way you ran a lean, fast company was never built for the size you have become. The fix is not more hustle, and it is not a big-name executive hire. It is an operating system built for where you are going.

No subjective green.

Status is a matter of evidence, not optimism. I install reporting with measurable criteria, so problems surface while they are small and nothing waits for the quarter something green turns red overnight.

Built to end.

An engagement that never ends is a seat, not a system. The goal is a company that runs without me, and without running through you. The measure of the work is what holds after I leave.

It's a system problem, not a founder problem.

The informal way you ran a lean, fast company was never built for the size you have become. The fix is not more hustle, and it is not a big-name executive hire. It is an operating system built for where you are going.

No subjective green.

Status is a matter of evidence, not optimism. I install reporting with measurable criteria, so problems surface while they are small and nothing waits for the quarter something green turns red overnight.

Built to end.

An engagement that never ends is a seat, not a system. The goal is a company that runs without me, and without running through you. The measure of the work is what holds after I leave.

WHY FOUNDER-LED SOFTWARE COMPANIES

Because that is where the technical depth matters. I have operated at engineering scale, so your architecture conversations, your roadmap tradeoffs, and your team's language are not foreign to me. Somewhere between $8M and $30M, the way you run the company starts to strain. That strain has a structure, and I have spent a career learning it.

HOW I THINK

Three Convictions Behind the Work

It's a system problem, not a founder problem.

The informal way you ran a lean, fast company was never built for the size you have become. The fix is not more hustle, and it is not a big-name executive hire. It is an operating system built for where you are going.

No subjective green.

Status is a matter of evidence, not optimism. I install reporting with measurable criteria, so problems surface while they are small and nothing waits for the quarter something green turns red overnight.

Built to end.

An engagement that never ends is a seat, not a system. The goal is a company that runs without me, and without running through you. The measure of the work is what holds after I leave.

WHY FOUNDER-LED SOFTWARE COMPANIES

Because that is where the technical depth matters. I have operated at engineering scale, so your architecture conversations, your roadmap tradeoffs, and your team's language are not foreign to me. Somewhere between $8M and $30M, the way you run the company starts to strain. That strain has a structure, and I have spent a career learning it.

FROM THE OPERATOR'S DESK

Thinking in public about

how companies actually run

Essays on decisions, reporting, meetings, and the operating systems that let a founder-led software company scale without running through its founder. New pieces are shared on LinkedIn and archived here.

FEATURED · ON DECISIONS

Why every decision still

finds its way back to you

Your leadership team is capable. Your meetings are full. And somehow the calls that matter still wait for you. The problem is not the people; it is the absence of decision rights anyone can name.

The piece to start with, for founders new to the argument.

THE NEXT STEP

Your company shouldn't need you in

every decision

Thirty minutes. An honest read of your situation against the seven operating failure patterns, and a straight answer on whether I can help. If I can't, I will just say that.

Scheduled within one week of request.

FROM THE OPERATOR'S DESK

Thinking in Public About How Companies Actually Run

Essays on decisions, reporting, meetings, and the operating systems that let a founder-led software company scale without running through its founder. New pieces are shared on LinkedIn and archived here.

FEATURED · ON DECISIONS

Why Every Decision Still

Finds Its Way Back to You

Your leadership team is capable. Your meetings are full. And somehow the calls that matter still wait for you. The problem is not the people; it is the absence of decision rights anyone can name.

The piece to start with, for founders new to the argument.

FROM THE OPERATOR'S DESK

Your Company Shouldn't Need You in

Every Decision

Thirty minutes. An honest read of your situation against the seven operating failure patterns, and a straight answer on whether I can help. If I can't, I will just say that.

Scheduled within one week of request.

Fractional Chief of Staff for founder-led B2B software companies, $8M to $30M in revenue.

CONTACT

5900 Balcones Dr., Suite 100, Austin, TX 78731

Fractional Chief of Staff for founder-led B2B software companies,

$8M to $30M in revenue.

THE ENGAGEMENTS

CONTACT

5900 Balcones Dr., Suite 100 Austin, TX 78731

Copyright 2026. Sean Rhea Advisory LLC. All Rights Reserved.