Senior React Native Mobile Engineer (Android & iOS)

Ethereum Technologies LLC; Helena (MT); On-site; USD 120,000 - 180,000; Full time

Job summary

Ethereum Technologies LLC is seeking a seasoned mobile application developer with extensive React Native experience to build cross-platform iOS and Android apps. The role requires hands-on Kotlin/Swift familiarity for legacy or migration tasks and integrating apps with Java-based REST APIs.

The ideal candidate thrives in Agile/Scrum environments and has delivered public-facing or consumer mobile applications. Production-grade React Native skills are mandatory for this role.

Qualifications

• 7+ years of experience in mobile application development.
• Strong hands-on experience with React Native for cross-platform (iOS & Android) apps.
• Prior experience supporting or migrating Kotlin and Swift mobile applications.
• Experience integrating mobile apps with Java-based REST APIs using JSON.
• Experience working in Agile / Scrum development environments.
• Experience delivering public-facing or consumer mobile applications is preferred.
• React Native (production experience – mandatory).

Skills

Mobile app development

Kotlin/Swift cross-platform

Agile/Scrum

REST API integration

React Native production experience

Public-facing mobile apps

Tools

React Native

Job description

Ethereum Technologies LLC is seeking a seasoned mobile application developer with extensive React Native experience to build cross-platform iOS and Android apps. The role requires hands-on Kotlin/Swift familiarity for legacy or migration tasks and integrating apps with Java-based REST APIs.

The ideal candidate thrives in Agile/Scrum environments and has delivered public-facing or consumer mobile applications. Production-grade React Native skills are mandatory for this role.