Sr Android Developer

Senior Android Platform Engineer
Sterling, VA
Full-Time
U.S. Citizenship Required

About the Role
We are building a hardened, custom Android platform for deployment across managed device fleets.
We are hiring engineers who can own this domain end to end: custom OS builds, OTA delivery, kernel
maintenance, device security, and fleet management infrastructure.
This is a founding platform engineering role. You will define the architecture, set the standards, and
lead as we scale. You will work alongside a growing engineering organization focused on
clients ore product lines.

What You'll Do
• Maintain and extend a custom AOSP-derived platform build, including device trees, vendor
partitions, HAL customizations, and system image signing
• Design and operate reproducible build pipelines with CI/CD automation and secure release
key management
• Build an end-to-end OTA update system engineered for reliability in degraded environments - including phased rollout, rollback, and fault-tolerant installation
• Build, patch, and maintain custom Linux kernel images for the target platform, including
kernel module development and upstream security patch integration
• Own the secure boot chain: AVB key infrastructure, bootloader security, SELinux policy
authoring, and code signing with proper key lifecycle management
• Implement encryption, remote wipe, tamper detection, and rollback protection appropriate
for high-assurance environments
• Evaluate and integrate cryptographic modules aligned with U.S. government cybersecurity
frameworks and standards
• Architect device management strategy - enrollment, provisioning, policy enforcement,
health monitoring, and compliance reporting across the fleet

Required Qualifications
• 7+ years software engineering experience, with 4+ years focused on Android platform and
system-level development (not application development)
• Experience building, modifying, and flashing custom Android system images from AOSP or
comparable open-source base
• Hands-on experience with Android Verified Boot, bootloader security, and the secure boot
chain
• Linux kernel development: building from source, module development, devicetree,
debugging
• Familiarity with Android OTA internals: update_engine, A/B partitioning, payload generation,
boot control HAL
• Strong security engineering fundamentals: PKI, code signing, chain of trust, FDE/FBE, key
management
• Proficiency in C/C++, Python, and Shell; working knowledge of Java/Kotlin for framework
level modifications
• U.S. citizenship required
Preferred Qualifications
• Experience with FIPS 140-2/3 cryptographic module integration
• Familiarity with U.S. government and regulated environment security frameworks (NIST 800
53 or equivalent)
• Experience managing device fleets at scale in operational environments
• Experience with Android Enterprise device owner and fully managed device APIs
• Contributions to AOSP or open-source Android platform projects
• Experience designing update and delivery systems for intermittent or degraded
connectivity
• HSM-backed signing infrastructure experience