Mobile Engineer (iOS / Android)

Evlo AI; San Francisco (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

Evlo AI is seeking a mobile engineer to own user-facing iOS and Android features for a consumer-scale product. You will ship native apps with a focus on performance, offline-first behavior, and reliability, collaborating with design, backend, and QA.

You’ll influence architecture, tooling, and platform decisions and mentor mid-level engineers. Join a fast-paced team delivering high-visibility mobile experiences used by millions daily, with opportunities to advance mobile tooling and CI/CD

Qualifications

• 3–6 years of mobile engineering experience shipping consumer apps to the App Store and/or Google Play.
• Deep fluency in Swift and/or Kotlin with modern UI frameworks.
• Experience integrating REST/GraphQL APIs, auth, caching, and offline sync in mobile clients.
• Track record of owning releases: App Store/Play Store submission processes, feature flags, staged rollouts, and crash-rate management.
• Strong debugging and profiling skills across concurrency, memory management, and networking.
• BS in Computer Science or equivalent practical experience.
• Bonus: Kotlin Multiplatform, React Native, or Flutter; mobile CI/CD infra ownership; open-source contributions.

Responsibilities

• Design, build, and ship production features in Swift/Kotlin across iOS and Android.
• Own features end-to-end: scoping, API contracts with backend teams, implementation, testing, rollout, and post-launch monitoring.
• Optimize app performance — startup time, render performance, memory footprint, and battery usage — using profilers and APM tooling.
• Build and maintain modular, testable architecture with strong unit and UI test coverage.
• Instrument analytics and crash reporting and drive down crash rates and ANRs to best-in-class levels.
• Participate in code reviews, feature RFCs, and weekly release trains; contribute to shared mobile platform tooling and CI/CD.
• Mentor mid-level engineers and help set mobile engineering standards across the team.

Skills

Swift

Kotlin

iOS

Android

REST/GraphQL APIs

App Store/Play Store releases

Debugging & profiling

Unit/UI testing

CI/CD

Education

BS in Computer Science or equivalent practical experience

Tools

Firebase Performance

Sentry

XCTest

Espresso/JUnit

Fastlane

Bitrise

GitHub Actions

Amplitude

Crashlytics

Job description

About The Role

The role owns user-facing mobile experiences for a consumer-scale product — building and shipping native iOS and Android features used by millions of users daily, with a focus on performance, reliability, and offline-first behavior.

You will work closely with product designers, backend engineers, and QA to ship features on a fast release cadence, and you will have real influence over mobile architecture, tooling, and platform decisions.

Key Responsibilities

• Design, build, and ship production features in Swift/Kotlin (or Kotlin Multiplatform/React Native where appropriate) across iOS and Android codebases
• Own features end-to-end: scoping, API contracts with backend teams, implementation, testing, rollout, and post-launch monitoring
• Optimize app performance — startup time, render performance, memory footprint, and battery usage — using profilers and APM tooling (Firebase Performance, Sentry)
• Build and maintain modular, testable architecture with strong unit and UI test coverage (XCTest, Espresso/JUnit)
• Instrument analytics and crash reporting (Amplitude, Firebase, Crashlytics) and drive down crash rates and ANRs to best-in-class levels
• Participate in code reviews, feature RFCs, and weekly release trains; contribute to shared mobile platform tooling and CI/CD (Fastlane, Bitrise, GitHub Actions)
• Mentor mid-level engineers and help set mobile engineering standards across the team

What We Are Looking For

• 3–6 years of mobile engineering experience shipping consumer apps to the App Store and/or Google Play at scale
• Deep fluency in Swift and/or Kotlin, with strong command of UIKit, SwiftUI, Jetpack Compose, or equivalent modern UI frameworks
• Experience integrating REST/GraphQL APIs, handling auth, caching, and offline sync patterns in mobile clients
• Track record of owning releases: App Store/Play Store submission processes, feature flags, staged rollouts, and crash-rate management
• Strong debugging and profiling skills across concurrency (async/await, coroutines), memory management, and networking
• BS in Computer Science or equivalent practical experience
• Bonus: Experience with Kotlin Multiplatform, React Native, or Flutter; mobile CI/CD infrastructure ownership; contributions to open-source mobile libraries