Senior Mobile Engineer - Offline-First React Native

Ontrac Solutions; United States; Remote; USD 130,000 - 190,000; Full time

Job summary

Ontrac Solutions is seeking a Senior Software Engineer (Mobile) to lead the build of an offline-first React Native platform for a state government licensing and regulatory system. You will own features end-to-end, collaborating with client tech lead, backend engineers, and stakeholders to ensure delivery.

The role requires shipping production apps to iOS/Android, deep mobile experience, and strong security practices, including OIDC/OAuth 2.0 integration and secure storage.

Qualifications

• 7+ years of professional software engineering experience.
• 3+ years with React Native and production app shipping.
• Bachelor's degree in Computer Science or equivalent.

Responsibilities

• Build the offline-first React Native mobile app for iOS/Android.
• Implement encrypted local storage and data synchronization.
• Integrate Okta/OIDC authentication and secure session handling.
• Deliver unit and E2E test coverage and participate in code reviews.

Skills

React Native

TypeScript

Expo toolchain

Offline-first

SQL

OIDC/OAuth 2.0

REST API

Jest

Detox

Education

Bachelor's degree in Computer Science

Tools

Xcode

Android Studio

Okta (OIDC)

Job description

Ontrac Solutions is seeking a Senior Software Engineer (Mobile) to lead the build of an offline-first React Native platform for a state government licensing and regulatory system. You will own features end-to-end, collaborating with client tech lead, backend engineers, and stakeholders to ensure delivery.

The role requires shipping production apps to iOS/Android, deep mobile experience, and strong security practices, including OIDC/OAuth 2.0 integration and secure storage.