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Salary: USD 130,000 - 160,000 / annual
Flock Safety is building custom headless operating systems for a fleet of field-deployed devices that support criminal investigations and missing person cases at scale. This role focuses on core Android framework engineering—architecting and implementing custom system services, AIDL interfaces, and hardware abstractions for headless AOSP builds that run continuously in the field without standard UI components or app store frameworks.
You will own the design and implementation of system-level features using Kotlin, Java, Rust, and C++ to interface directly between the kernel and application layer. Key responsibilities include diagnosing complex OS-level memory leaks, concurrency deadlocks, and performance bottlenecks using tools like Perfetto and Android Profiler; developing automated CTS and VTS test suites and system update pipelines to maintain fleet reliability over the air; and conducting root-cause analysis on system tombstones, bug reports, and kernel logs across custom Qualcomm-based hardware platforms.
This is not a mobile app development role—you won't write UI code, manage Fragments, or deploy to Google Play Store. Instead, you'll spend time deep in the AOSP stack writing AIDL interfaces, system services, and low-level IPC frameworks. You'll debug live code running on physical, headless camera hardware in real-world deployment states.
You bring practical experience designing versioned service interfaces using AIDL or HIDL; proficiency in Kotlin and Java with strong knowledge of OS threading, coroutines, synchronization, and memory management; experience building or debugging custom AOSP environments, shell scripts, init.rc configurations, and SE Linux security policies; and capability to trace execution flow across Android stack layers using Perfetto, tracing utilities, and tombstone logs. Experience with C/C++, Linux kernel drivers, or Qualcomm camera stacks is a plus.
Flock has 1,700 employees, over $1B in funding, and last year supported over 1 million criminal investigations and helped locate more than 10,000 missing people. The company prioritizes candidates in Atlanta and Boston for in-person collaboration, but this role is open to remote work across the US.
