Senior Software Engineer

Visa - USC/ GC

• Board and kernel level development
• AOSP builds, Android framework
• Integrating packages and creating hardware layer codes
• Applying vendor patches
• Cybersecurity risk assessment
• Regulated industry required

Job Title - Senior Software Engineer

Project

Location:

Irvine, CA (Onsite)

Duration: 12+ months contract

Visa - USC/ GC

HM Notes:
Previous subs only had experience at the application layer/app developers. This is focused on impact assessments and patches of AOSP at the kernel level.

• Board and kernel level development
• AOSP builds, Android framework
• Integrating packages and creating hardware layer codes
• Applying vendor patches
• Cybersecurity risk assessment
• Legacy Android (5)
• Operating System level work
• Regulated industry required

We are looking for a Senior Software Engineer with deep experience in Android OS and AOSP platform engineering. In this role, you will own and enhance a customized Android 5 based operating system used within a Class III medical device. You will customize and harden the OS, improve system performance, integrate hardware components, and ensure the platform meets strict medical device cybersecurity and regulatory requirements.

This role requires strong Android platform experience-not just app development-and includes work across OS frameworks, kernel, BSP, HAL, and system level validation.

• Update and modify Android OS (version
  5) to address security issues and compliance needs.
• Customize and maintain an AOSP fork, including frameworks, system services, and configuration.
• Apply OS level patches and security settings aligned with FDA and EU cybersecurity guidance.
• Integrate BSPs, HALs, vendor patches, and hardware drivers with the Android platform.
• Perform board bring up (U Boot, device tree, kernel integration).
• Conduct low level debugging using UART, JTAG, and similar tools.
• Modify Linux kernel components and device drivers when required.
• Improve system performance, resource usage, and inter process communication (Binder/AIDL).
• Use system level profiling tools to identify and fix issues.
• Fix OS and kernel level vulnerabilities and reduce OS/kernel attack surfaces.
• Implement OTA update mechanisms.
• Support cybersecurity risk analysis and threat modeling.
• Perform OS level verification and validation following IEC 62304.
• Support risk management efforts aligned with ISO 14971.
• Participate in audits and reviews to maintain regulatory compliance.
• Work with app developers to ensure compatibility.
• Partner with cybersecurity, system engineering, and quality teams.
• Create and maintain architecture docs, test plans, and traceability matrices.
• Ensure documentation is complete and audit ready.

• Bachelor's or Master's degree in Computer Engineering, Computer Science, Electrical Engineering, or related field.
• 7+ years of software engineering experience.
• 3+ years working with Android OS / AOSP.
• Strong experience with AOSP builds, Android frameworks, and kernel modification.
• Solid understanding of Linux internals and embedded systems.
• Experience in regulated environments.
• Knowledge of IEC 62304, ISO 14971, and related standards.
• Familiarity with cybersecurity risk assessment and vulnerability remediation.

• Experience with legacy Android (Android
  5).