Staff Mobile Engineer
Core
Architect high-performance, low-latency mobile applications for stock trading, crypto, and banking platforms serving millions of users.
Role type
Staff Mobile Engineer (Individual Contributor)
Builds
High-frequency trading and fintech mobile client applications
Domain
Fintech / Mobile Engineering
Deliverable
production ML models | product features
Required skills
Native mobile architecture (Android/Kotlin or iOS/Swift), Clean architecture, Modularization, Performance tuning (memory/rendering), Security (encryption/certificate pinning), Concurrency/Asynchronous programming, Technical leadership
Preferred skills
AI tool integration, Offline-first data synchronization
Technologies
Kotlin, Swift, Coroutines, Reactive streams, EncryptedSharedPreferences, Keychain/Keystore, WebSocket
Responsibilities
Architect and scale high-performance mobile clients, Drive mobile engineering roadmap and SDK libraries, Optimize app rendering and resource consumption, Design offline-first sync and secure storage, Mentor senior engineers and lead technical reviews (via careerplan.io/jobs/b66932c6-6cb8-43c6-9563-535c413356cf-staff-mobile-engineer-at-ajaib)
Seniority
Staff, high-level IC with strategic impact