We build systems to safely evolve the last generation of software into the next one.

BrontoSource enables organization to evolve their mission critical code in place by providing safe, deterministic, traceable changes that scale to the largest codebases in the world.

WHAT WE DO

From Large Codebases to Safer Systems

BrontoSource enables teams to build, deploy, and scale intelligent systems with confidence. We bring together compute, inference, and orchestration into a unified architecture allowing organizations to move from experimentation to production without friction.

Our focus is on performance, reliability, and simplicity, so teams can spend less time managing systems and more time building impactful AI products.

We take a solution-centric approach, where the end results is driven by the desired outcomes. We combine deep language knowledge with compiler analysis and practical experience to drive reliable outcomes and low compute costs.

values

the principles that guide how we design, build, and scale modern aI systems

We build for scale

We design systems that perform under real-world pressure and grow with demand.

We plan for traceability

Outputs are transparent and reproducible, so teams can review with confidence.

We think in systems

We don’t build isolated tools. We create ecosystems that work together.

We move with purpose

We focus on solving meaningful problems, not adding unnecessary complexity.

Team

The People Behind BrontoSource

We’re a small, focused team of engineers with deep experience in large-scale systems, developer tooling, and long-term codebase health.

Matt Kulukundis

CEO

Matthew Kulukundis

CEO, co-founder

Prior to BrontoSource, Matt spent eleven years at Google where he led Software Ecosystems as a Principal Engineer. Go's map and Rust's std::collections::HashMap
are based directly on his work. When he isn't exploring ways to make software evolve smoothly, he watches fish over coral reefs all over the world.

Andy Soffer

CTO

Dr. Andrew Soffer

CTO, co-founder

Prior to founding BrontoSource, Andy spent eight years at Google where he led the C++ Refactoring team. During that time he designed and implemented novel technologies and techniques for source-to-source migrations across Google’s monorepo, as well as executing those migrations over hundreds of millions of lines of code.

Shahms King

Engineer

Shahms King

Engineer

Prior to BrontoSource, Shahms worked on Kythe, the knowledge graph that powers all of Google’s code understanding. When he isn’t coding, Shahms enjoys walking in the woods and coaxing a scared dog into exploring more of the world.

Eric Li

Engineer

Eric Li

Engineer

Prior to BrontoSource, Eric built tools to execute code migrations across all of the C++ code at Google. He also worked on the internal engine for Rock Band 4 and enjoys rock climbing whenever he can find a vertical surface.

Team

The People Behind BrontoSource

We’re a small, focused team of engineers with deep experience in large-scale systems, developer tooling, and long-term codebase health.

Matt Kulukundis

CEO

Matthew Kulukundis

CEO, co-founder

Prior to BrontoSource, Matt spent eleven years at Google where he led Software Ecosystems as a Principal Engineer. Go's map and Rust's std::collections::HashMap
are based directly on his work. When he isn't exploring ways to make software evolve smoothly, he watches fish over coral reefs all over the world.

Andy Soffer

CTO

Dr. Andrew Soffer

CTO, co-founder

Prior to founding BrontoSource, Andy spent the eight years at Google where he led the C++ Refactoring team. During that time he designed and implemented novel technologies and techniques for source-to-source migrations across Google’s monorepo, as well as executing those migrations over hundreds of millions of lines of code.

Shahms King

Engineer

Shahms King

Engineer

Prior to BrontoSource Shahms worked on Kythe, the knowledge graph that powers all of Google’s code understanding. When he isn’t coding, Shahms enjoys walking in the woods and coaxing a scared dog into exploring more of the world.

Eric Li

Engineer

Eric Li

Engineer

Prior to BrontoSource, Eric built tools to execute code migrations across all of the C++ at Google, where he spent eight years. He also worked on the internal engine for Rock Band 4 and enjoys rock climbing whenever he can find a vertical surface.

Eric Li

Engineer

Eric Li

Engineer

Prior to BrontoSource, Eric built tools to execute code migrations across all of the C++ at Google, where he spent eight years. He also worked on the internal engine for Rock Band 4 and enjoys rock climbing whenever he can find a vertical surface.

Eric Li

Engineer

Eric Li

Engineer

Prior to BrontoSource, Eric built tools to execute code migrations across all of the C++ at Google, where he spent eight years. He also worked on the internal engine for Rock Band 4 and enjoys rock climbing whenever he can find a vertical surface.

talks

Deep Dives Into Infrastructure, Systems, and Design.

Explore how we think about designing systems, scaling processes, and maintaining large codebases.

Declarative Refactoring for the Masses in C++ - Andy Soffer - C++Now 2025

Is The Future of C++ Refactoring Declarative? - Andy Soffer - CppCon 2025

Growing Your Toolkit From Refactoring to Automated Migrations

CppCon 2017: Matt Kulukundis “Designing a Fast, Efficient, Cache-friendly Hash Table, Step by Step”

Abseil's Open Source Hashtables: 2 Years In - Matt Kulukundis - CppCon 2019

Reflect *this!: Design and Implementation of a Mixin Library with Static Reflection - Andy Soffer

Building a Lock-free Multi-producer, Multi-consumer Queue for Tcmalloc - Matt Kulukundis...

Lightning Talk: Your Very Own Godbolt - Andy Soffer - C++Now 2025

Lightning Talk: Ship Comms - How do They Work? - Matt Kulukundis - C++Now 2025

LET’S CONNECT

ready to build with BrontoSource?

If you are interested in learning more, partnering with us as an early customer, or investing, please reach out!
You can also subscribe to our announcement list to receive updates about what we are doing.

Get a Demo