# AI Phone - Senior Android System Engineer at Bjak

AI Phone - Senior Android System Engineer at Bjak in Seoul, Korea. Hybrid, full-time. Posted November 4, 2026.

- Company: Bjak
- Location: Seoul, Korea
- Workplace: Hybrid
- Job type: Full-time
- Posted: 2026-11-04
- Apply: https://jobs.ashbyhq.com/bjakcareer/2b1da2c2-e58c-492b-96c7-b5f1cbd1137a/application
- Source: https://jobmagic.ai/jobs/ai-phone-senior-android-system-engineer-bjak-qhbd99

## Requirements

- Strong Android engineering experience.
- Experience with Android Framework or AOSP development.
- Strong Java / Kotlin knowledge.
- Understanding of Binder IPC, Android processes and system services.
- Experience with Android permissions and application lifecycle.
- Strong debugging and performance optimization skills.

## Description

### **About**

We are reimagining the phone. AI phones need to be proactive, intuitive, intelligent and low cost. This is a mission critical for rest of the world to adopt intelligence.
There are over 5 billion people using everyday applications such as email, messaging, notes, tasks, and calendars, yet most are not AI-native. Our mission is to build proactive applications and devices that bring intelligence into daily conversations, coordination and workflows, with minimal prompting.
**Focus:** Android Framework, system services and OS-level AI integration.

### **Responsibilities**

- Implement and modify Android system services.

- Develop privileged system APIs for AI capabilities.

- Build interfaces that allow AI agents to interact with Android system functionality.

- Work on permissions, IPC, application lifecycle and background execution.

- Integrate AI services with Android system components.

- Optimize system performance and resource consumption.

- Collaborate with agent engineers to implement reliable execution interfaces.

### **Requirements**

- Strong Android engineering experience.

- Experience with Android Framework or AOSP development.

- Strong Java / Kotlin knowledge.

- Understanding of Binder IPC, Android processes and system services.

- Experience with Android permissions and application lifecycle.

- Strong debugging and performance optimization skills.

### **Nice to have**

- Custom ROM or AOSP contributions.

- C++ experience.

- Experience with Android System UI.

- Experience with background services and power management.