Sr Android Developer with Security Clearance

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

Employee