Staff Mobile Engineer (P4)
Core
Build and own mobile SDKs for Stytch's identity and fraud detection platforms, powering authentication, fraud prevention, and emerging agentic identity use cases for Twilio's customer base.
Role type
Staff Mobile Engineer (IC)
Builds
Mobile SDKs for identity and fraud prevention products
Domain
Cybersecurity / Identity Management / Mobile Development
Required skills
Android development (Kotlin/Java), mobile SDK design, device internals, software architecture, technical leadership, observability, incident response, mentoring
Preferred skills
iOS development, Kotlin Multiplatform, C/C++, Swift, Go, building developer tools
Technologies
Kotlin, Java, Android, iOS, Swift, Go, Kotlin Multiplatform
Responsibilities
Design and build mobile SDKs for authentication and fraud detection; partner with leadership to set technical direction; collaborate across teams on architecture; drive technical decisions and code reviews; improve production resilience; mentor engineers
Seniority
Staff, high-ownership IC with strategic impact
