Y Combinator Staff Software Engineer, Continuous Integration
Summary
Build and maintain scalable CI infrastructure for thousands of daily builds, using tools like Jenkins and Kubernetes to improve reliability and reduce test time.
Salary: £57,000 - 73,000 per year
Requirements:- We want someone with 10+ years of relevant industry experience building and operating large-scale CI/CD systems.
- We need deep experience with CI orchestration tools such as Buildkite, Jenkins, GitHub Actions, or similar.
- We value experience with container orchestration at scale.
- We are looking for excellent communication skills and a collaborative approach to supporting internal partners.
- We care deeply about reliability and systems that never fail the same way twice.
- A bachelors degree or an equivalent combination of education, training, and/or experience is required.
- The field of study should be relevant to the role, as demonstrated through coursework, training, or professional experience.
- We design and build highly reliable, scalable CI infrastructure that supports thousands of daily builds across multiple cloud providers.
- We develop intelligent test selection systems that reduce CI time while maintaining code quality.
- We build and improve incident response automation, including cluster load shedding, automatic recovery, and observability tooling.
- We improve test infrastructure reliability through flake detection, quarantine systems, and test state management.
- AI
- CI/CD
- Cloud
- GitHub
- Support
- Jenkins
- API
- Kubernetes
More:
We are Anthropic, a public benefit corporation headquartered in San Francisco, and our mission is to create reliable, interpretable, and steerable AI systems that are safe and beneficial for users and society. We are a quickly growing team of researchers, engineers, policy experts, and business leaders working together on beneficial AI systems. This role sits within our Developer Productivity organization on the Continuous Integration team, where we support the infrastructure that helps hundreds of engineers ship code safely and efficiently to production. We offer competitive compensation and benefits, optional equity donation matching, generous vacation and parental leave, flexible working hours, and a collaborative office environment. Our location-based hybrid policy currently expects staff to be in one of our offices at least 25% of the time, and we do sponsor visas for some roles and candidates.
last updated 34 week of 2026