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Experienced Android engineer needed to own and scale Motion’s Kotlin-based native Android app, delivering high-performance platform integrations and features used by hundreds of thousands of users.

Lead the design, development, and operation of Kalshi’s production-grade Flutter mobile app to deliver high-quality trading and user experiences.

Operate and optimize lifecycle marketing campaigns at Collectors, leveraging Salesforce Marketing Cloud and automation tools to deliver personalized email and push communications that drive customer engagement and growth.

Polymarket is hiring a Lifecycle Marketing Lead to own retention, CRM, and in-product messaging across web and mobile to drive repeat trading and user engagement.

Lead the architecture and implementation of Sierra’s native iOS/Android Experience SDKs to deliver polished, high-performance chat and voice integrations for customer apps.

WEBTOON Entertainment seeks a detail-oriented, data-driven Campaign Manager to run and optimize multichannel lifecycle campaigns that deepen engagement and retention across its global community.