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# Senior Android Framework Engineer

- **Company:** WorldCoin Pro Ltd
- **Location:** San Francisco, CA, United States
- **Experience:** Expert
- **Salary:** $220,000.0 - $270,000.0
- **Contract:** Permanent contract
- **Skills:** Abstraction Layers, Android Software Development, UClibc (C Standard Library), Computer Engineering, Linux on Embedded Systems, Middleware, Firmware, Linux Kernel, Performance Tuning, Software Engineering, Systems Integration, Yocto, Build Tools
- **Published:** August 31, 2026
- **Apply:** https://www.careerboard.com/us/en/find-jobs-in-United-States/-70782470F4CC40A838/

## About the Role

* Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or related field
 * 7+ years of hands-on experience in software development, with a strong understanding of all levels of the software stack
 * Experience working with Android and AOSP based platforms
 * Experience developing and maintaining consumer electronics systems at large scale
 * Strong proficiency in C/C+/Rust and experience with Linux Kernel and user-space programming
 * Have shipped high volume mobile Android based devices
 * Deep understanding of AOSP internals, HAL framework, and Android system bring-up
 * Experience implementing custom HALs and IPC interfaces (Binder, HIDL, AIDL, or similar)
 * Experience working with cross-compilation toolchains, device trees, and hardware abstraction layers
 * Comfortable working in a start-up or high-velocity team environment, with a proactive, hands-on approach

Nice-to-Haves

 * Familiarity with Yocto, Buildroot, or Android build systems
 * Hands-on experience with Embedded Linux, BSP development, and system integration

## Description

Tools for Humanity is looking for a Senior Software Development Engineer to join as one of our first device software engineers at our new San Francisco office. This is a great opportunity to join a newly formed, dynamic team and contribute to the full stack development of our next generation proof of human devices., * Design, implement, and maintain Embedded Linux and Android system components, including Kernel modules, init scripts, and system daemons.

 * Develop and extend AOSP and custom HALs and in to support new hardware features and platform services.
 * Work to define robust communication interfaces between system components.
 * Manage entire software development lifecycle from concept to production with a focus on developing scalable systems
 * Serve as an interface between firmware/hardware teams and Android application teams
 * Collaborate with cross-functional teams (hardware, software, product) to optimize system performance with a clear understanding of UX and customer needs
 * Supporting overseas development with JDM/ODM partners
 * Integrate and optimize low-level drivers and Middleware for performance, reliability, and power efficiency.
 * Mentor junior engineers in development best practices


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