Senior Ios Platform Engineer

Oura Oura · Consumer · Helsinki, Finland · Software Engineering

Senior iOS Platform Engineer responsible for owning and evolving the iOS platform, build and test foundations, application observability, build performance, test stability, and CI reliability. Focuses on systemic improvements that scale across teams and measurably improve developer productivity.

What you'd actually do

  1. Act as a deep technical owner of the iOS build system, including Xcode configuration, build internals, and performance characteristics.
  2. Define and evolve test architecture for iOS unit, integration, and UI tests, with a strong focus on determinism and signal quality.
  3. Design and maintain iOS CI execution models, including simulator usage, sharding strategies, and test parallelization.
  4. Own and evolve Tuist-based project generation, structure, and tooling.
  5. Ensure iOS build and test results are clear, actionable, and surfaced early.

Skills

Required

  • iOS engineer with a focus on build systems, test infrastructure, or developer tooling
  • Deep understanding of Xcode builds, dependency graphs, and build performance optimization
  • Experience designing or evolving iOS test architectures, including integration or UI testing at scale
  • Experience operating and improving iOS build and test systems in CI environments
  • Proven ability to improve local developer build and test loops for iOS engineers
  • Comfort using CI metrics, logs, and failure patterns to guide debugging and prioritization
  • Strong root-cause analysis skills and the ability to debug complex, non-deterministic failures
  • Clear communication skills and the ability to work effectively with iOS engineers, platform teams, and partners

Nice to have

  • Familiarity with developer-facing observability or instrumentation in pre-release environments
  • Experience contributing to or shaping CI standards beyond a single platform
  • Interest in mentoring other iOS engineers in build and test best practices
  • Exposure to cross-platform mobile build or test systems