Own and coordinate releases across Web, Android, and iOS. Manage the full release lifecycle, from build validation to production rollout. Validate builds, versions, artifacts, and CI/CD pipelines. Perform manual and automated testing, with a strong focus on critical user journeys. Ensure cross-platform quality and consistency before each release. Collaborate closely with engineering and product teams to identify risks early and unblock launches. Act as the final quality checkpoint before anything reaches production.