Case Study: WEX achieves 30% higher developer productivity with GitHub Copilot code review

WEX boosts developer productivity by 30% with GitHub

The customer, WEX, faced significant bottlenecks in their software development lifecycle, specifically with pull requests spending an average of 73 hours waiting for human review. This led to delayed product launches, capped engineering capacity, and increased rework costs. To address this, they turned to GitHub and implemented GitHub Copilot for code review.

GitHub's solution involved standardizing development on their platform and making GitHub Copilot a mandatory reviewer using GitHub Rulesets. This provided instant, AI-powered first-pass feedback on every pull request. The result was a 30% increase in developer productivity for WEX, allowing them to accelerate velocity, improve code quality, and scale their engineering output without adding headcount.

WEX