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Spend Time on the Things That Matter

Opendoor relies on CircleCI for fast, bug-free software builds

Why CircleCI?

Opendoor helps take the hassle out of home buying and selling, so people can sell their houses quickly and get great deals on new homes. The company has been using CircleCI since Opendoor launched in 2014, and can roll out new product features faster while improving developer productivity. “As we grow, it’s important that software quality doesn’t deteriorate,” says Zain Memon, Opendoor engineer. “CircleCI helps us make sure that quality remains high.”

The Challenge

Opendoor splits its development team between product engineering and data science, since it builds tools for home buyers and sellers and also crunches data to predict home values and market risk. Since developers are always iterating new features, like an app for scheduling home viewings, they need to test dozens of new builds a day.

The Solution

With CircleCI, Opendoor developers can quickly run tests on every commit. By finding and fixing bugs before going into production, developers can be sure they’re delivering quality software. Since they spend less time on iterating while also boosting quality of software, Opendoor developers can focus on brainstorming new product features that customers need. “CircleCI helped us shave many minutes off our build time. We save tons of developer time with CircleCI,” says Zain.


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Adam Haney
CTO at Bellhops

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CTO at Kit Check

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CTO at Shyp

Kyle Espinola
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Senior Software Engineer Team Lead at Procore

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Software Engineer at GatsbyJS

Emily Atkinson
“CircleCI is the hub, and the brain of our global automation.”

Emily Atkinson
Software Engineer at Condé Nast

James Sewell
“We deploy all of this infrastructure with CircleCI. It's quite a large amount of our real estate around the world. If you want to make a change...that's done through CircleCI.”

James Sewell
Lead Platform Engineer at Condé Nast

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Calvin-French Owen
CTO/Co-founder at Segment

“Switching to CircleCI has allowed our engineers to build and release mobile and web projects with far greater simplicity, speed and performance.”

Matt Wise
Senior Systems Architect at Nextdoor

“With CircleCI our DevOps team spends less time on busy work that bottlenecks our engineers and more time improving productivity.”

Jason Riggins
Director, Production Engineering at Manheim

“We could not ask for more from a CI service in today’s mobile-first world.”

Jason Bosco
“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.”

Jason Bosco
VP of Engineering, Core Platform & Infrastructure at Dollar Shave Club

Jason Bosco
“CircleCI is one of those tools that silently chugs along in your stack doing some serious heavy-lifting while staying out of your way. That’s what you want in your unit testing infrastructure - something to get the job done with zero maintenance overhead.”

Jason Bosco
VP of Engineering, Core Platform & Infrastructure at Dollar Shave Club

Ian Lotinsky
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Ian Lotinsky
CTO at LearnZillion

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Felix Rodriguez
DevOps Engineer at Bleacher Report

Oliv Vaussy
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Oliv Vaussy
Software Developer at Wit

Tomoaki Kobayakawa
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Tomoaki Kobayakawa
Deputy General Manager at Sony

Peter Tilsen
“With our last CI solution, we had all the unnecessary work of hosting, configuring, and extending our own server. With CircleCI we don’t have to spend a single thought on CI infrastructure or maintenance, it’s just there and does the job.”

Peter Tilsen
CTO at Uniplaces

Peter Tilsen
“When running into performance troubles, adding new containers was a piece of cake. Every issue that I came across was quickly solvable, even when I needed technical support from the CircleCI team. The initial configuration was just a charm.”

Peter Tilsen
CTO at Uniplaces

Darby Frey
“CircleCI makes it incredibly easy to get new apps running. With our old service we had to manually setup the build for each app, but now CircleCI can figure out what we need automatically.”

Darby Frey
Director of Platform Engineering at Belly

Baron Schwartz
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Baron Schwartz
Founder and CEO at VividCortex

Baron Schwartz
“We also pride ourselves on iterating fast. It’s common for customers to request a feature or improvement and we ship it within hours or days—sometimes within minutes. Every time we do this, we can metaphorically hear jaws dropping on the other end of the support thread. We’ve won several deals this way, especially against competitors that can’t match our speed and quality. I can’t imagine how we could do this without CircleCI.”

Baron Schwartz
Founder and CEO at VividCortex

Baron Schwartz
“Jenkins systems always end up being magical special snowflake servers that only a few people have the knowledge or willingness to deal with… it causes tremendous loss of productivity for the entire team.”

Baron Schwartz
Founder and CEO at VividCortex

Rob Witoff
“One of the best assets we have as a company is the smartest engineers we can find. Rather than provide slow or cumbersome tools, we want to provide self-service workflows for our engineers who can use them on their own time, in their own way. That’s why we have moved over to CircleCI.”

Rob Witoff
Former Director at Coinbase

Rob Witoff
“The fact is that in today’s world, companies need to make merge time to deploy time as short as possible. When looking for a CI solution that can scale really quickly, parallelize, distribute and optimize the run time in the split—and manage Docker as a first class citizen to help us manage the many systems inside—CircleCI comes out on top.”

Rob Witoff
Former Director at Coinbase

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

Toshimasa Ishibashi
Co-founder and CTO at Kaizen Platform

Toshimasa Ishibashi
“From simple setup and easy integration across GitHub, Chat apps, Docker (and more) to the ability to deploy to different environments from production, QA, and staging—CircleCI has proven to be completely indispensable for our business.”

Toshimasa Ishibashi
Co-founder and CTO at Kaizen Platform

Hemal Shah
“fastlane is built around the principle of continuous deployment. Having a partner like CircleCI that is consistent and reliable enables us to not only deliver the best value to our customers, but deliver it with total confidence.”

Hemal Shah
Product Manager for Mobile Developer Tools at Fabric

Hemal Shah
“A huge secondary selling point for us with CircleCI is the company’s encouragement and support of open source projects. CircleCI has jumped in head first, always with a can-do attitude when it comes to offering the necessary support and scalability needed to maintain a rapidly growing open source tool like fastlane.”

Hemal Shah
Product Manager for Mobile Developer Tools at Fabric

Casey Link
“Switching to CircleCI eradicated the time sink of maintaining our own build cluster. With CircleCI’s top-line support for git and BitBucket, our developers spend more time reviewing code and writing tests, and less time waiting for builds to complete.”

Casey Link
Software Developer at Cropster

Terence McDevitt
“CircleCI has allowed our development teams to focus more on our solutions and less on our DevOps. We were up and running builds out of our Bitbucket repositories within minutes of signing up. I wish we had this years ago.”

Terence McDevitt
Enterprise Content Management Solution Architect at Blue Fish Group

“This is soooo easy to use. I’ve been using CircleCI with Github for a long time. Glad to see its integrated with Bitbucket. Now my BB repos can get the CI love they need. For anyone wondering... just get it and USE IT!”

Review
from Atlassian Marketplace at Joe Rzepiejewski

“BitBucket and CircleCI is a great combination if you want to develop your private project with continuous integration for free. BitBucket gives you free private repos, and CircleCI gives you a free container. It’s the easiest CI service that I’ve ever used.”

Review
from Atlassian Marketplace at Thai Pangsakulyanont

Jason Garber
“CircleCI is a big part of our dev process and we wouldn’t deploy without it.”

Jason Garber
COO & Software Engineer at Promptworks

Jason Garber
“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.”

Jason Garber
COO & Software Engineer at Promptworks

Dan Barrett
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Dan Barrett
Web Developer at Humaan

Brian Triplett
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Brian Triplett
Director of Release Management at nCino

“Overall, Avant saved over 50% of their previous end-to-end build time from the performance improvements mentioned above.”

Tim Mertins
Test Engineering Manager at Avant

“This has had a very positive impact on our build pass rates and productivity which previously suffered when a test would fail across all branches just because the date rolled over.”

Tim Mertins
Test Engineering Manager at Avant

“The @circleci 2.0 is a huge improvement. Build times have gone below 1 minute. Loving it!”

via @abey_alex

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Adrian Macneil
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Adrian Macneil
Director of Infrastructure Engineering at Cruise

“holy moly @circleci down from ~5 mins (version 1.0) to ~2 mins (version 2.0) for testing and deploying. great job!”

via @zemirco

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via @qnmco

Matti Schneider
“There are so many challenges in building working software within government that you deliver to the public in 6 months. CircleCI lets us focus on the things that matter.”

Matti Schneider
Core Team Member at beta.gouv.fr

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Josh Dover
Senior Software Engineer at CrateJoy

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Seth Ringling
Developer at Avvo

Steve Persch
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Steve Persch
Agency and Community Engineer at Pantheon

Zain Memon
“CircleCI is both the fastest and the easiest CI I’ve used to date.”

Zain Memon
Director of Engineering at Opendoor

Russell Stephens
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Russell Stephens
Mobile Software Engineer at Compass

Javeria Khan
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Javeria Khan
Systems Engineer at Branch

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Rob Eanes
CTO at Pingboard

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Jim Hanifan
Head of Product at Brandfolder

Alex Farrill
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Alex Farrill
CTO at Open Listings

Eric Nakagawa
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Eric Nakagawa
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James Sewell
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James Sewell
Lead Platform Engineer at Conde Nast

Breon Knight
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Software Engineer at CircleCI

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Solutions Engineer at CircleCI

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Software Engineer at CircleCI

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Maksim Pecherskiy
Chief Data Officer at City of San Diego

Maksim Pecherskiy
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Maksim Pecherskiy
Chief Data Officer at City of San Diego

Donald Tyler
“Using CircleCI as a SaaS tool is really important. It is the best fit for our culture.”

Donald Tyler
DevOps Technical Lead at HealthLabs.com

Donald Tyler
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Donald Tyler
DevOps Technical Lead at HealthLabs.com

Adam Nowak
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Adam Nowak
Software Development Practice Lead at Netguru

Nick Wilson
“The sea change that happened for us over the course of a couple years was removing the fear [of deploying]... It used to be that pushing to production was a really big deal.

It’s given people on the executive team and in sales and support more confidence that we can act on information that we get from customers.”

Nick Wilson
VP of Technical Operations at GoSpotCheck

Adam Zimman
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Adam Zimman
Vice President of Platform at LaunchDarkly

Andrew Brown
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Andrew Brown
Senior Software Engineer at LaunchDarkly

“There were so many of our customers that were already using orbs and already using CircleCI that their ability to take the orb and adopt it was trivial. It was so easy that it gave them access to that feature without having to do any additional work.”

Cory Virok
Co-founder and CTO at Rollbar

“Almost all of our workflows follow the same large pattern…It was really nice that we could define the ‘how to’ in one spot, get all of the repos set up with the one orb so when we made updates we only had to make that change in 1 place. It’s a noticeable time difference for when we have to roll out changes. It could save us days of updates.”

Kelsey Steinbeck
Director of Software Engineering at Indigo

Josh Bazemore
“What makes me most confident in CircleCI is knowing that I have full control over the process, and this platform can scale with whatever my needs are.

With CircleCI, things can move through the release process more quickly. It probably means an extra release a day that we couldn't do before.”

Josh Bazemore
Engineering Manager, Tools and Operations at Greenhouse

Rob Eanes
“I wasn’t convinced Jenkins was worth the effort. With CircleCI there were none of the headaches I’d experienced before. Everyone who joins our team picks up CircleCI very quickly. It’s always a positive experience.”

Rob Eanes
CTO at Pingboard

Darío Cravero
“I’ve used Jenkins, but we prefer CircleCI because it doesn’t get in the way. It has a simple UI and setting it up in our project was super fast.”

Darío Cravero
Software Engineer

Laurent Schaffner
“When we evaluate the success of our work, it comes down to quality, reliability, and the ability to innovate. CircleCI enables us to check those boxes and makes us confident in the quality of our code.”

Laurent Schaffner
Head of Backend Development at Livestorm


About Opendoor

Opendoor was started in March of 2014 to dramatically simplify home buying and selling by making it simple, instant and online. Homeowners can go to Opendoor.com and receive a competitive offer within 24 hours and close on their timeline. For home buyers, Opendoor makes it easier to find and purchase the perfect home with industry innovations like all day, every day open houses.

Languages

Ruby
Elixir
Python

Stack

Postgres
Docker
NGINX
Elasticssearch
Redis
Webpack
New Relic
Sentry

Team size

50

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