Android Developer

Sanas•Palo Alto, CA

76d

About The Position

We're looking for a hands-on Senior Android App Developer to lead development of our Androidc application that delivers near real-time, voice-to-voice translation. You'll own core client features-from FaceTime-like calling and live captioning to buttery-smooth UI animations-and collaborate closely with our iOS developer, designer, and product team members to ship a high-quality, low-latency experience. Experience with Kotlin and working independently on an Android project from scratch is required. AV/WebRTC experience is a plus.

Requirements

5+ years building and shipping consumer-grade mobile apps; 3+ years with Android
Demonstrated ownership of a major app or feature used by real customers (Play Store)
Strong UI/UX instincts with animation
Experience integrating real-time or streaming features (sockets, WebRTC)
Comfortable porting iOS to Android
Fluency with mobile CI/CD, OTA updates, crash reporting, and performance tooling
Excellent product judgment, collaboration, and communication; thrive in fast- paced, in-person startup environment
Start-to-finish launch experience for a high-quality mobile app

Nice To Haves

WebRTC
Android FCM
Android media
Live captions, speech recognition, local VAD
Analytics/attribution (PostHog, Branch or alternatives), deep linking, and
growth experiments
Localization/i18n, accessibility, and app security best practices

Responsibilities

Build major app features in Android
Auth
Audio/video calling
Onboarding flow
Growth features
Consecutive translation
Conversation translation
Real-time media & low latency
Integrate with our real-time translation backend and media pipelines
Work with WebRTC, handle audio routing, interruptions, and seamless crossfades from original to translated audio
Performance, reliability, and quality
Optimize connection time, frame budget, memory, and jank
Instrument crash/error reporting; build resilience for poor networks and Backgrounding
Instrumentation & growth
Add analytics, deep-links, and attribution (e.g., PostHog, Branch or equivalents).
Support A/B experiments, notifications, and "call non-users" funnels.
Platform collaboration
Port iOS modules in Swift to Kotlin with maintainability consideration in mind
Partner with backend team on streaming APIs, caption timing, and voice Pipelines.
Security, accessibility, and internationalization
Implement privacy-first features, localization/i18n, and accessible UI.