A case study on Yuzu

Health insurance is a $1.3 trillion industry still run on fax machines, Excel macros, and misaligned incentives. Yuzu is rebuilding health plan administration with a single platform that gives employers real transparency and control over their health spend.

When self-funded employers trust you with their members' healthcare, you need to ship fast while keeping your production systems reliable and performant. So for a company like Yuzu, code review was not optional; it was a necessity.

And after scaling from 5 to 15 engineers in a year, the Yuzu engineering team found themselves with a growing backlog of PRs that felt impossible to manage. So they decided to try Stage.

A mountain of PRs to review

"We were drowning under hundreds of PRs every week - every five minutes I was getting asked to review something that I had very little context on."

— Ryan Soderberg, Engineering Manager at Yuzu

As coding agents starting taking off at the end of 2025, it became obvious that code review was becoming the bottleneck to getting features into production. Engineers would constantly bump PRs in a dedicated #code-review Slack channel, and reviewers would resort to rubber stamping them and “trusting the author.”

Getting set up with Stage

It’s never easy asking engineers to sign up for a new product that changes their workflow. But with Stage, getting started took less than 5 minutes.

Supporting sign in with GitHub meant that no one had to go through the hassle of making a new account. Having an “Open in Stage” button in PR descriptions made it easy to open them directly on Stage. And everything being two way synced with GitHub meant that they never had to worry about disrupting their existing code review workflows.

Better code reviews, faster

"When I opened my first PR on Stage, something just clicked. Being able to read things in a structured way allowed me to give more meaningful feedback faster."

— Ryan Soderberg

Stage changed the way how engineers at Yuzu do code review almost immediately.

Instead of spending hours trying to piece together thousand line diffs, Stage enabled reviewers to read the most important parts of the PR first and understand the context behind why certain changes were being made.

This allowed reviewers to not only give better feedback but also give it faster, leading to quicker turnaround times and higher quality code.

And for Yuzu, it helps them deliver what matters most: a high quality experience for the thousands of members that they serve.

"It's made code review not feel like a chore anymore - and given us much more confidence in what we're shipping."

— Ryan Lee, CTO