The use case: how Rollbar deploys CircleCI
Rollbar uses CircleCI for CI/CD on its legacy monolith as it moves toward microservices. Docker layer caching speeds up container image builds, and parallel test runners split up the large unit test suite.
More reported results
Figures published in CircleCI’s case study. They are not independently measured by usedby.
Turning around fixes now takes 50% less time
50% reduction in build time – from 40 minutes to 16–20 minutes
In the customer’s words
Since we implemented Docker layer caching, we’ve saved about 2,000 hours of developer time in the last six months … our ability to turn around fixes has shortened by 50% or more.There were so many of our customers that were already using orbs … it was so easy that it gave them access to that feature without having to do any additional work.CircleCI users in DevTools & Infrastructure
Companies in the same sector, with public evidence.
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SolarWindsConfirmedGo straight to the source
Based on CircleCI’s published case study. We check the public evidence; the results are reported by the vendor.
circleci.com- Source published
- Nov 13, 2026
- Last checked
- Nov 13, 2026
Open source capture What the story claims, and what we checked
What we compared with the page.
- The figure: 2,000 hoursChecked
Printed word for word on the page, near the name of Rollbar.
- The passage quoted aboveChecked
Copied word for word from the page, near the name of Rollbar.
- The publication dateChecked
Read from the page’s own metadata, never guessed.
- Rollbar uses CircleCIChecked
Confirmed line.
- The result itselfNot checked
We quote it; we did not measure it.
Since we implemented better Docker layer caching, we’ve saved about 2,000 hours of developer time in the last six months,” Mattera says. “Likewise, our ability to turn around fixes has shortened by 50% or more