Android AOSP Device Software Engineer

Calling all innovators - find your future 're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved.

If you want to make an impact on a global scale, come make a difference  Title Android AOSP Device Software Engineer About your role Clover, a Fiserv company, is a global leader in point-of-sale platforms powering millions of small businesses worldwide with integrated hardware, software, and payment solutions. The DeviceOS engineering team owns the core platform software running across all physical Clover smart devices and supports global mass manufacturing software pipelines.

As a Staff AOSP Engineer based in Sunnyvale, CA, you will serve as the technical authority driving custom Android OS architecture, system framework modifications, low-level platform security, and factory provisioning to deliver a secure, high-performing device experience.

What you’ll doLead functional solution architecture, product requirements, and technical designs for custom Android Open Source Project (AOSP) builds across current and next-generation payment terminals.  Design, develop, and optimize Android system services, background daemons, and framework-layer components (frameworks/base/) compatible across multiple Android OS versions.

Bridge high-level application frameworks with low-level C/C++ native layers, working alongside Hardware Abstraction Layer (HAL) and kernel teams. Partner directly with global manufacturing partners and test engineers to build, maintain, and optimize factory flashing tools, diagnostic software, and board bring-up daemons to achieve 100% manufacturing yield. Architect platform security workflows, including PKI certificate provisioning, SELinux/SEAndroid policies, and HSM or ARM Trust Zone integrations.

Responsibilities listed are not intended to be all-inclusive and may be modified as necessary.

Experience you’ll need to have7+ years of hands-on software development experience with a primary focus on customizing, building, and deploying AOSP at the platform/OS layer. Proven track record in the architecture, design, and customization of Android devices and platforms (frameworks/base, System Server, JNI, AIDL/HIDL) rather than consumer applications. Technical proficiency in at least two major languages used in the AOSP stack:
Java, C++, C, or Kotlin. Hands-on experience adapting Android frameworks, system services, and Hardware Abstraction Layers (HAL). Proficient with AOSP build tools and revision control workflows, including Git, Gerrit, repo, Android.bp, and Android.mk. Deep understanding of platform security protocols, encryption/decryption, PKI certificate management, and Hardware Security Modules (HSM).Experience that would be great to have Hands-on experience with Android HAL development or Project Treble architecture.

Experience working directly with the Linux Kernel for Android, device drivers, or ARM Trust Zone / TEE environments. Demonstrated experience mentoring engineers, driving architecture reviews, and providing technical leadership to cross-functional teams.

How you’ll work:

This role is on-site Monday through Friday. Fiserv considers in-person collaboration to be an essential part of this role as in-person office experiences help you with your overall onboarding experience and leads to stronger productivity.

This role requires use of a computer and audio equipment.

Benefits at Fiserv:

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