Senior Android System Engineer

About the role

Newfire Global Partners is looking for a Senior Android System Engineer to join a team building a clinical software solution that modernizes real-time communication in busy healthcare settings. The application runs on custom Android devices built, signed and managed by the company itself, and the engineer works at the intersection of custom AOSP builds, device-level integration and over-the-air fleet management.

Key responsibilities

• Build, sign and maintain custom AOSP images, write patches (for example to mainline modules such as NetworkStack) and apply them to the OEM's RK-class tree
• Implement privileged, system-level capabilities: OTA apply via update_engine, remote reset, system log capture, input injection and screen capture, and device identity (mTLS / hardware attestation)
• Evaluate trade-offs (Privileged App vs. Device Owner, capture/injection approaches) and prototype solutions to inform roadmap decisions
• Work with hardware partners to implement device-level capabilities and custom OS integrations, and verify behaviour on real devices
• Maintain the Kotlin on-device agent and its integration with the MDM and the OTA / remote-management backend
• Take part in sprint ceremonies, peer code reviews and work with product management and client engineering leads

Required profile

• Experience building and modifying custom Android builds (AOSP) and applying patches to a vendor BSP tree (Rockchip / RK-class SoCs a plus)
• Experience with privileged apps, SELinux/sepolicy, Device Owner and Device Policy Manager APIs
• Experience with OTA / firmware updates (update_engine, A/B, AVB, ota_from_target_files) and system-level capabilities such as remote factory reset, log capture, input injection and screen capture
• Ability to interface directly with device OEMs and manufacturers, with a verify-on-device-first approach
• Track record of driving technical research spikes and presenting recommendations to stakeholders
• Experience integrating with a third-party MDM or building enrollment, remote-management and OTA workflows for managed fleets
• Clear verbal and written communication with product, application and OEM stakeholders
• Nice to have: healthcare domain knowledge, C/C++ / native, kernel or U-Boot familiarity, and strong REST and OOP understanding