Mobile Engineer — Privacy & Security (iOS/Android)

RealDefense; California; On-site; USD 120,000 - 160,000; Full time

Job summary

RealDefense is seeking a mobile engineer to join a small, hands-on team focused on privacy and security apps for iOS and Android. You will navigate Kotlin Multiplatform and native iOS development, shaping the platform as it grows and mentoring others along the way.

You will own features end-to-end from planning through production, participate in code reviews, and collaborate with our head of mobile to set architecture.

Qualifications

• CS degree or equivalent practical experience.
• 1+ year of full-time iOS development in Swift.
• At least one shipped App Store app you can walk us through end to end.
• Strong Swift and SwiftUI fundamentals with testing.
• Willingness to learn Kotlin Multiplatform and Compose Multiplatform.
• Based in the Los Angeles area and able to work from the office 3 days a week.

Responsibilities

• Build privacy and security features with Apple’s system extensions.
• Build subscriptions and accounts with StoreKit 2.
• Write shared Kotlin alongside Swift, and review both iOS and Android code.
• Own features in production: TestFlight, App Store review, crash and log triage, performance tuning.
• Work with AI coding agents every day: plan, review, and test what they write.
• Write a short plan before you build and keep it current as the work changes.

Skills

Swift

SwiftUI

Kotlin Multiplatform

Compose Multiplatform

AI coding agents

Education

CS degree or equivalent

Tools

Xcode

StoreKit 2

Instruments

Job description

RealDefense is seeking a mobile engineer to join a small, hands-on team focused on privacy and security apps for iOS and Android. You will navigate Kotlin Multiplatform and native iOS development, shaping the platform as it grows and mentoring others along the way.

You will own features end-to-end from planning through production, participate in code reviews, and collaborate with our head of mobile to set architecture.