BREAKING  David Aronchick named co-founder & CEO of Expanso /// 4x founder • ex-Google • ex-Microsoft • ex-Amazon • ex-Protocol Labs /// Helped launch Google Kubernetes Engine /// Co-founder of Kubeflow & Bacalhau /// Expanso raises $7.5M seed round /// “Bring the compute to the data” /// BREAKING  David Aronchick named co-founder & CEO of Expanso /// 4x founder • ex-Google • ex-Microsoft • ex-Amazon • ex-Protocol Labs /// Helped launch Google Kubernetes Engine /// Co-founder of Kubeflow & Bacalhau /// Expanso raises $7.5M seed round /// “Bring the compute to the data” ///
David Aronchick, co-founder and CEO of Expanso
SEATTLE, WA — The guy who keeps showing up wherever infrastructure gets reinvented.
Person • Founder • Builder

David
Aronchickcodfish, Kubernetes, and the case for staying put

He helped make Kubernetes mainstream. His next move is to make it look slow. Welcome to compute that travels to your data, not the other way around.

The Dispatch

A salted codfish walks into a data center

Bacalhau is Portuguese for salted cod. It is also the name David Aronchick gave to a serious piece of distributed-computing software. The joke is the point. The fish is preserved and shipped without spoiling, and that is roughly what Aronchick wants to do with computation: send a small, durable job out to wherever your data already sits, instead of dragging mountains of data back to some distant cloud.

For most of the last fifteen years, the industry has done it the other way. Collect the data, ship it to a giant warehouse, then rent enormous machines to chew through it. Aronchick spent a good chunk of that era helping build the tools that made it possible. At Google he led product for Kubernetes and helped launch Google Kubernetes Engine, the managed service that turned container orchestration from a science project into a default. He co-founded Kubeflow, the open-source toolkit that bolted machine learning onto that same stack.

Then he looked at the bill. Moving data is expensive, slow, and increasingly illegal in the places where privacy and sovereignty rules have teeth. So at Protocol Labs he ran a research effort called Compute over Data, and out of it came Bacalhau, and out of Bacalhau came Expanso, the Seattle company he co-founded and now runs as CEO. The pitch fits on a sticky note: stop moving the data.

It is a contrarian bet from someone with the resume to make it. Aronchick is a four-time founder who has worked at Microsoft, Google, Amazon, Chef, and Protocol Labs. That is less a career ladder than a guided tour of how modern computing got assembled, and he keeps choosing to stand at the edge of whatever comes next.

By The Numbers
4x
Startups founded
$7.5M
Expanso seed round
2
Stints at Microsoft
5
Cloud giants on his CV
“Technology is not neutral.”
— David Aronchick, on why builders should choose what they build
The Big Idea

Two ways to do the same job

The old model treats data like cargo. A factory floor, an oil rig, a hospital, a satellite, each one generates terabytes, and the plan is always the same: haul it across the network to a central cluster, then process it. The transfer is the slow part, the costly part, and often the part regulators object to.

Bacalhau flips the geometry. The data stays put. A tiny container of compute shows up at the source, runs the job locally, and sends back only the answer. Faster, cheaper, and the sensitive bits never leave the building. For edge computing, regulated industries, and multi-region setups, that is not a nicety. It is the whole game.

It is the kind of idea that sounds obvious right up until you realize the entire cloud economy was built on the opposite assumption.

Compute over Data, illustrated

THE OLD WAY
DATA
(at the edge)
SHIP IT ALL
to the cloud
COMPUTE
slow • costly • privacy headache
— vs —
THE BACALHAU WAY
COMPUTE
DATA
(stays put)
RESULT
only
fast • cheap • private by default
“Bring the compute to the data, not the data to the compute.”
THE EXPANSO THESIS, IN NINE WORDS
The Long Way Round

A career told in infrastructure

2001 – 2007
Microsoft, round one. Program management across Exchange, Internet Explorer security, Linux and open-source strategy, and Microsoft Research. The unglamorous plumbing of an era.
2007
Hark. Leaves to start a Seattle audio-clip sharing platform. Founder number one of eventually four.
2015
Google. Joins the Kubernetes team, leads product, and helps launch Google Kubernetes Engine - the service that made managed Kubernetes ordinary.
2017
Kubeflow. Co-founds the open-source project that brings machine learning workflows to Kubernetes, plus the SAME project for reproducible ML.
2019
Microsoft, round two. Returns as head of Open Source Machine Learning Strategy at Azure.
2021
Protocol Labs. Leads Compute over Data - the research that becomes the seed of everything next.
2022
Bacalhau. Co-founds the open-source distributed computation platform. Names it after a fish.
2023
Expanso. Named co-founder and CEO to commercialize Bacalhau.
2024
$7.5M. Expanso closes its seed round to scale the distributed data platform.
The Stops

Google

Led Kubernetes product. Launched GKE. Co-founded Kubeflow.

Microsoft

Twice. Early plumbing, then open-source ML strategy at Azure.

Amazon

Product management for Prime Now restaurants.

Protocol Labs

Ran Compute over Data. The idea that became Bacalhau.

Chef

Senior product marketing in the DevOps trenches.

Expanso

Co-founder & CEO. The current chapter, written at the edge.

What Drives Him

Three things he refuses to treat as side projects

Machine Learning

Make it accessible. Strip out the complexity so the people with the problems, not just the people with the GPUs, can use it.

Open Data

Valuable datasets should be shared for public good, not locked in private vaults. Data democratization, not data hoarding.

The Environment

Less data shuttled across continents means less energy burned. Efficiency as a climate position, not just a cost line.

The connective tissue: a conviction that technology is not neutral, and that the people who build it own a share of what it does next.
The Margins

Notes from the edges

The fish. Bacalhau is salted cod - preserved, portable, shipped without spoiling. A surprisingly precise metaphor for a portable compute job.
Not a CS major. His Dartmouth degrees are in psychology and chemistry. The infrastructure career came later, and sideways.
ironyuppie. He blogs under that handle and keeps a deep public archive of conference talks - KubeCon, PyData, WASM I/O and beyond.
Off the clock. He skis, travels, chases global cuisines, and spends time with his kids. The edge-computing evangelist likes the literal edges too.
Filed Under
distributed computing kubernetes kubeflow bacalhau edge computing compute over data open source machine learning data sovereignty seattle
In His Own Words

Watch & listen

Aronchick is a relentless conference speaker, and most of it lives online. A good place to start is his own explainer on bringing the compute to the data.

The Rolodex

Find David Aronchick