Senior CI / Build Systems Engineer

About the role

The App DevX team at Oura is seeking a Senior CI & Build Systems Engineer to enhance our mobile CI, build, and observability systems. This role involves owning and evolving our CI pipelines for iOS and Android, ensuring high-quality builds and tests, and providing visibility into app performance and regressions.

Responsibilities

• Design, maintain, and improve PR, merge, and release pipelines for iOS and Android
• Drive improvements in CI runtime, queue time, and merge failure rates through systematic measurement and iteration
• Manage CI runner fleets including capacity planning and reliability
• Implement caching, sharding, and parallelization strategies
• Partner with infrastructure teams on capacity and performance expectations
• Serve as technical owner for Gradle (Android) and Xcode / Tuist (iOS)
• Improve build performance, determinism, and local–CI parity to reduce "works on my machine" failures
• Define and evolve test architecture for unit, integration, and UI tests
• Set standards for flaky test detection, quarantine, and remediation
• Partner with Testing and Release teams to shift meaningful signals earlier into CI
• Own logging, metrics, and tracing practices for pre-release workflows
• Ensure CI environments surface actionable signals about app behavior, performance, and regressions
• Set technical direction and long-term strategy for mobile CI, build systems, and observability
• Mentor other engineers; act as a technical partner to infrastructure and backend teams

Requirements

• 8+ years in software engineering, CI/CD, or build systems with meaningful ownership of production systems
• Experience operating CI, build, or test systems across multiple teams or a large codebase
• A systems-first mindset with a track record of improving reliability, performance, and developer productivity at scale
• Comfort reasoning about distributed systems, shared infrastructure, and capacity-related failure modes
• Strong root-cause analysis skills and comfort debugging complex, non-deterministic failures
• Excellent communication skills and ability to work effectively across teams and org boundaries

Technical Expertise

• Mobile CI systems at scale: runner fleets, caching, sharding, and parallel execution
• Mobile build systems: Gradle (Android) and/or Xcode / Tuist (iOS)
• Test stability tooling and diagnosing flaky or non-deterministic failures
• Ci observability: metrics, dashboards, and alerting
• Scripting and automation (e.g. Bash, Python), Linux and macOS environments, Git workflows
• Familiarity with cloud-based execution environments (e.g. AWS)

Benefits

• Competitive salary and equity packages
• Health, dental, and vision insurance
• Lunch and wellness benefits
• Flexible working hours and work-life balance
• An Oura Ring of your own plus employee discounts for friends & family
• Latest equipment of choice

Pay

Region 1: $172,550 - $203,000
Region 2: $158,950 - $187,000
Region 3: $147,900 - $174,000

Schedule

Flexible working hours and work-life balance