Senior Mobile Engineer – Kotlin & Cross-Platform Lead

Hiya Inc.; Seattle (WA); Hybrid; USD 140,000 - 180,000; Full time

Job summary

Hiya Inc. seeks a Senior Mobile Engineer to design, build, and ship features across iOS and Android apps, with backend changes. You will own releases, extend automation, and ensure high quality with automated tests and reviews.

You’ll drive architectural decisions, collaborate with product and design, and apply AI coding agents to enhance productivity while maintaining trust and performance of the platform. This is a hybrid role in Seattle with generous equity and growth opportunities.

Qualifications

• Proven Kotlin Multiplatform production experience.
• Delivery of features across iOS and Android with backend changes.
• Experience leading architecture/ platform changes in mobile teams.

Responsibilities

• Design, build, and ship features for iOS and Android apps and backend changes.
• Own releases from cut to store and improve release automation.
• Build tests, instrumentation, and gates for high-quality shipping.
• Drive mobile architecture decisions and adoption.
• Collaborate with product/design on what to build and why.
• Leverage AI coding agents to increase productivity and safety.

Skills

Kotlin Multiplatform

Android

iOS

Backend APIs

Release automation

Code review & PRs

AI coding agents

Architectural leadership

Tools

Kotlin/Android tooling

Compose Multiplatform

CI/CD (Bitrise/Runway)

CallKit / Telecom framework

Job description

Hiya Inc. seeks a Senior Mobile Engineer to design, build, and ship features across iOS and Android apps, with backend changes. You will own releases, extend automation, and ensure high quality with automated tests and reviews.

You’ll drive architectural decisions, collaborate with product and design, and apply AI coding agents to enhance productivity while maintaining trust and performance of the platform. This is a hybrid role in Seattle with generous equity and growth opportunities.