At CircleCI, we enable thousands of developers to do better work every day. We're looking for full-stack folks to nurture the systems that make it possible.

The Core mission is to provide best-in-breed Continuous Integration and Continuous Delivery. As a Core member, you’ll own essential microservices and build features at the heart of our platform: Orbs, Pipelines, permissions, our data model, and the CLI, for example. You’ll also collaborate daily with colleagues across North America and western Europe.

This is a full-time role at the E3-level and requires participation in our on-call support rotation.

What You’ll Do:

  • Design and build new features, simplify existing services, and scale our systems as we rapidly grow and evolve.
  • Write sustainable, testable, high-quality, high-performance code.
  • Support, maintain and debug microservices in a complex distributed system.
  • Foster a culture of observability and monitoring: use operational data to help your team increase the stability, performance, and usage of our systems.
  • Partner with members of a cross-functional team and other partners to set the direction of our product: learn about our business problems, explore solutions, weigh design tradeoffs, write effective user stories, and prioritize them to deliver maximum value in a balanced, incremental fashion.

What we're looking for:

  • 3+ years of professional experience building and debugging distributed systems in production environments.
  • You write code that’s easily readable, testable, and maintainable, with an eye towards baking in observability from the beginning.
  • You enthusiastically approach everything from working on the UI to API design with the same level of respect and intention. You don’t need to be a specialist in everything; T-shaped folks are ideal for these roles.
  • You’re interested in learning new languages and technologies. We use JavaScript/Typescript and React for our frontend services; Go and Clojure for our backend services; MongoDB and PostgreSQL, and RabbitMQ, but it’s okay if you haven’t yet. You can find more details on our tech stack here.
  • You’re good at adapting to the dynamics of a rapidly-growing company with a remote-first environment - quickly adjusting when priorities change and making conscious tradeoffs with incomplete information.

We’re Particularly Interested In People Who:

  • Work transparently and collaboratively within a distributed team.
  • Favor regular, incremental delivery over perfection.
  • Strive for continuous learning and improvement for themselves and their teams.
  • Are interested in ensuring that all of our systems - software and human - scale efficiently.

CircleCI Engineering Competency Matrix 

The Engineering Competency Matrix is our internal career growth system for engineers. This position is level E3. If you are not sure this is you, we encourage you to apply. Find more about the matrix in this blog post.

Work remotely with our globally distributed team!

We’re a distributed company with teammates across the world. For this role, we are hiring engineers to work remotely in The United States, Ireland, Germany, United Kingdom and through our affiliate, Continuous Labs, in the following Canadian provinces: Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island and Saskatchewan.

About CircleCI

CircleCI is the world’s largest shared continuous integration and continuous delivery (CI/CD) platform, and the central hub where code moves from idea to delivery. As one of the most-used DevOps tools that processes more than 1 million builds a day, CircleCI has unique access to data on how engineering teams work, and how their code runs. Companies like Spotify, Coinbase, Stitch Fix, and BuzzFeed use us to improve engineering team productivity, release better products, and get to market faster.

CircleCI is proud to be an Equal Opportunity and Affirmative Action employer. We do not discriminate based upon race, religion, color, national origin, sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law.

Colorado Salary Range: $133,500 - $157,000/yr


Level: Mid-Senior Level

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At CircleCI we deeply understand the value of bringing together a team with different perspectives, backgrounds and experiences, and welcome all applicants regardless of race, color, religion, creed, age, national origin or ancestry, ethnicity, sex, sexual orientation, gender identity or expression, disability, military or veteran status.

While the disclosure of your personal information is optional, completely anonymous and not attached to your application, we ask you to consider sharing this information to help us understand who is interested in working here, and help us get better at providing a positive, fair and unbiased experience for all applicants.  We understand that many applicants, especially those of marginalized groups, are often fearful that disclosing this personal information might create a barrier of entry for them.  We want to assure you that your answers will remain absolutely anonymous, and that we will use this data only to help us get better at supporting all candidates as they move through our interview process.

We appreciate your help and for your trust in our efforts to make CircleCI a place of equal opportunity for everyone.

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