Senior Mobile Engineer - iOS/Android, End-to-End Ownership

Nous Research; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Nous Research is seeking a Software Engineer, Mobile to own the Hermes Agent mobile experience across iOS and Android. You will drive the native apps from UI through APIs, ensure offline resilience and efficient resource use, and collaborate with Product, Design, and AI teams to bring new capabilities to life.

The role demands hands-on experience shipping mobile apps, proficiency in Swift or Kotlin, and comfort with a cross-platform layer like React Native.

Qualifications

• 5+ years of software engineering experience with a strong focus on mobile.
• Shipped and maintained production iOS and/or Android apps used by real people.
• Strong with native mobile development (Swift, Kotlin) and comfortable with React Native.
• Solid backend/API sense; experience with TypeScript/Node.js or Python is a plus.
• Real product intuition and a high standard for mobile UX.
• Comfortable owning features end to end in a fast-moving environment.

Responsibilities

• Build and own the Hermes Agent mobile apps on iOS and Android, from UI down to the APIs that feed them.
• Ship native-quality experiences: smooth interaction, offline resilience, push notifications, and efficient battery/data use.
• Work across the mobile stack from Swift/Kotlin to a cross-platform layer where it speeds us up.
• Partner with Product and Design to turn ideas into polished mobile features and iterate on data.
• Handle app-store realities: release pipelines, review processes, versioning, and staged rollouts.
• Keep mobile experience consistent with desktop/web while preserving platform strengths.
• Build automated testing to keep releases reliable across devices and OS versions.
• Collaborate with Research and AI teams to integrate new model capabilities into the mobile app.

Skills

Mobile development

iOS/Android

React Native

Swift/Kotlin

API integration

Testing & QA

Tools

REST APIs

Node.js

Python

Job description

Nous Research is seeking a Software Engineer, Mobile to own the Hermes Agent mobile experience across iOS and Android. You will drive the native apps from UI through APIs, ensure offline resilience and efficient resource use, and collaborate with Product, Design, and AI teams to bring new capabilities to life.

The role demands hands-on experience shipping mobile apps, proficiency in Swift or Kotlin, and comfort with a cross-platform layer like React Native.