131 CircleCI Testimonials

“If your test suite takes an hour your minimum incident resolution time can’t be faster than an hour."

“CircleCI takes care of infrastructure and resources in the background, and that frees up a lot of my time. I’m not going to block anyone else if something goes wrong on my side – and no one else is going to slow me down or clog up my tests.”

“We have to install OS-dependent libraries depending on the programming language used for a build, which requires getting root privileges for the CI tool used. It’s not a good idea to give engineers the root privileges for security reasons, so we needed to ask the CI tool administrators to install those libraries.”

“We chose CircleCI primarily for its ability to automatically parallelize tests across many workers. Another primary factor is its cost structure. The cost structure enables us to optimize infrastructure costs by provisioning spot instances on Amazon Web Services, instead of on-demand or reserved instances, and we can scale our compute up and down in response to demand. CircleCI’s robust API is also a plus, and has enabled us to implement time saving features--such as automatic bisect and time travel builds--which benefit the entire development team.”

“CircleCI got us a long way toward our ideal, and let us customize the rest of the way. We can run builds faster and tighten our cycle times to iterate with our clients faster.”

“Before using CircleCI, unit testing was a significant pain point for us. CircleCI has significantly simplified setup and maintenance of our test environment and this allows us to run and maintain a stable test suite increasing the team’s confidence in the test results.”

“For us, CircleCI is the most important piece that bridges development and deployment; we couldn’t live without it.”

“As nCino started to grow, we realized that without the right tooling and processes, technology scaling would would be prohibitively expensive, and could even hamper the growth of our business."

“CircleCI delivers developers the main things they always want: the ability to do things better, and faster, for cheaper.”

"With CircleCI, we have probably saved $75-300K in maintenance on Jenkins. We've also had fewer headaches and shipping is easy."

"Workflows + Docker caching are great with CircleCI 2.0. I’m pumped about what we can do with this! Our Docker build times have gone from ~12 minutes to less than 2 minutes on CircleCI. Fan-freaking-tastic."

"We successfully migrated both repos and see phenomenal performance improvements, especially when we leverage caching! Our project’s build times went from roughly 2:30 minutes to 1:30 (without cache) and 0:50 (with cache)."

“Using CircleCI means we can produce more features quickly, so we can get product to customers with high velocity. It also means we can maintain high availability and solid infrastructure as our platform rapidly grows.”

“The most important thing for us is that, as we scale as a team, we don’t have to set up and manage our own CI system. CircleCI does the heavy lifting.”

“CircleCI helps us optimize how we’re testing today so we can identify issues early on, which plays a big part in our customers’ happiness.”