Senior Mobile App Developer – Android & iOS, End-to-End

Avathon, Inc; Austin (TX); On-site; USD 90,000 - 130,000; Full time

Job summary

Avathon, Inc. is seeking a Mobile Application Developer to build and ship high-quality Android and iOS apps. You will own features end-to-end—from design and API integration to testing, release, and performance tuning—collaborating with product, design, backend, and QA teams.

You will design modern UIs, implement MVVM/MVI and Clean Architecture, and contribute to CI/CD pipelines for automated builds and releases on Google Play and Apple App Store.

Qualifications

• Experience delivering mobile apps across Android and iOS.
• Experience consuming RESTful APIs and JSON.
• Experience integrating third-party libraries and SDKs.
• Familiarity with CI/CD tools (GitHub Actions/Jenkins/Bitrise/GitLab CI/Fastlane).
• Has published or contributed to at least one app on Google Play or App Store.

Responsibilities

• Design, build, and maintain mobile applications for Android and iOS.
• Develop modern, responsive UIs and adapt to different screen sizes.
• Integrate with REST APIs and manage offline data and error states.
• Ensure clean architecture (MVVM/MVI, Clean Architecture) across platforms.
• Write unit and UI tests and contribute to CI/CD pipelines.

Skills

Android

iOS

Kotlin

Java

Swift

REST APIs

CI/CD

Education

B.E./B.Tech/MCA in CS/Engineering

Tools

GitHub Actions

Jenkins

Bitrise

GitLab CI

Fastlane

Xcode

Android Studio

Job description

Avathon, Inc. is seeking a Mobile Application Developer to build and ship high-quality Android and iOS apps. You will own features end-to-end—from design and API integration to testing, release, and performance tuning—collaborating with product, design, backend, and QA teams.

You will design modern UIs, implement MVVM/MVI and Clean Architecture, and contribute to CI/CD pipelines for automated builds and releases on Google Play and Apple App Store.