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Salary: GBP 325,000 - 390,000 / annual
Anthropic is seeking a Staff Software Engineer to join the Continuous Integration (CI) team within the Developer Productivity organization. The CI team is responsible for the infrastructure that enables hundreds of engineers to ship code safely and efficiently to production.
The role involves designing and building highly reliable, scalable CI infrastructure that supports thousands of daily builds across multiple cloud providers. Key responsibilities include:
- Design and build CI infrastructure for automated testing and code quality assurance across a large monorepo, architected to scale with rapid growth
- Develop intelligent test selection systems that reduce CI time while maintaining code quality
- Manage test infrastructure running on Kubernetes clusters across multiple cloud providers, handling test execution, selection, and reporting for complex test suites
- Build and improve incident response automation, including cluster load shedding, automatic recovery, and observability tooling
- Improve test infrastructure reliability through flake detection, quarantine systems, and test state management
- Implement merge queue management and complex branching strategies that ensure code quality at scale
- Create CI tooling and automation to improve developer productivity and reduce operational overhead
Ideal candidates have 10+ years of experience building and operating large-scale CI/CD systems, deep expertise with CI orchestration tools (Buildkite, Jenkins, GitHub Actions, or similar), and experience with container orchestration at scale. Strong candidates may also have experience with merge queues, test infrastructure, CLI tools, and GitHub API automation. The role requires excellent communication skills, a focus on developer productivity, and a commitment to building reliable systems.
