Mobile Engineer (iOS / Android)

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

Job summary

Evlo AI is hiring a mobile engineer to build and maintain native apps for iOS (Swift/SwiftUI) and Android (Kotlin/Jetpack Compose), focusing on performance, offline resilience, and polished UX. You will ship features with a weekly cadence and own the full mobile surface area.

This hands-on role partners with product and design, defines architecture patterns (MVVM, MVI, Clean Architecture), and mentors junior engineers while improving crash-free rates and test automation.

Qualifications

• 3–7 years of engineering experience building consumer mobile apps.
• Proficiency in Swift and Kotlin with modern UI frameworks.
• Experience with MVVM, MVI, and Clean Architecture.
• Strong REST/GraphQL API integration and offline data access.
• Experience with CI/CD and automated testing.
• BS in Computer Science or equivalent.

Responsibilities

• Design, build, and ship features across iOS (Swift, SwiftUI) and Android (Kotlin, Jetpack Compose) with weekly release cadence.
• Own mobile architecture decisions: modularization, navigation patterns, dependency injection, and offline-first data layers.
• Improve app performance measurably — cold start time, frame rendering, ANRs, memory footprint — using profiling and performance tools.
• Build and maintain CI/CD pipelines for mobile including automated testing, code signing, and staged rollouts.
• Instrument and monitor production quality through Crashlytics, Sentry, and analytics to drive crash-free rates.
• Partner with product managers and designers to scope features and trade off native vs. cross-platform approaches.
• Conduct rigorous code reviews and mentor mid-level engineers on mobile best practices and platform conventions.

Skills

Swift

Kotlin

SwiftUI

Jetpack Compose

Performance tuning

CI/CD

Crashlytics/Sentry

REST/GraphQL

Code reviews

Education

BS in Computer Science or equivalent

Tools

SwiftUI

Jetpack Compose

Instruments

Android Profiler

Firebase Performance

Fastlane

Bitrise

GitHub Actions

App Store Connect

Google Play Console

Crashlytics

Sentry

Room

Core Data

Job description

About The Role
The role builds and maintains native mobile applications used by millions of customers daily — shipping features across iOS (Swift/SwiftUI) and Android (Kotlin/Jetpack Compose) with a focus on performance, offline resilience, and polished UX.

About The Role
The role builds and maintains native mobile applications used by millions of customers daily — shipping features across iOS (Swift/SwiftUI) and Android (Kotlin/Jetpack Compose) with a focus on performance, offline resilience, and polished UX.
This is a hands-off-the-roadmap, hands-on-the-codebase role: the team owns the full mobile surface area, works directly with product and design, and sets the standard for how the company's mobile apps are built.Key Responsibilities

• Design, build, and ship features across iOS (Swift, SwiftUI) and Android (Kotlin, Jetpack Compose) codebases with weekly release cadence
• Own mobile architecture decisions: modularization, navigation patterns, dependency injection, and offline-first data layers (Room, Core Data, GraphQL/REST clients)
• Improve app performance measurably — cold start time, frame rendering, ANRs, memory footprint — using tools like Instruments, Android Profiler, and Firebase Performance
• Build and maintain CI/CD pipelines for mobile (Fastlane, Bitrise, or GitHub Actions) including automated testing, code signing, and staged rollouts
• Instrument and monitor production quality through Crashlytics, Sentry, and analytics, driving crash-free rates above 99.5%
• Partner with product managers and designers to scope features, prototype interactions, and trade off native vs. cross-platform approaches
• Conduct rigorous code reviews and mentor mid-level engineers on mobile best practices and platform conventions
  

What We Are Looking For

• 3–7 years of engineering experience, with at least 3 years building and shipping consumer mobile apps on iOS, Android, or both
• Deep proficiency in Swift/Kotlin and modern UI frameworks (SwiftUI or Jetpack Compose); comfort owning the full feature lifecycle from spec to store release
• Experience with mobile architecture patterns (MVVM, MVI, Clean Architecture) and building testable codebases (XCTest, JUnit, Espresso)
• Track record of improving real app performance metrics and managing releases through App Store Connect and Google Play Console
• Hands-on experience with REST/GraphQL API integration, background processing, push notifications, and secure storage on mobile
• BS in Computer Science or equivalent practical experience