Android AOSP Device Software Engineer

We'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 at Fiserv.

Android Application Framework Developer - Device Engineering

Clover is a global leader in point-of-sale (POS) platforms powering millions of small businesses worldwide with integrated hardware, software, and secure payment solutions. We are seeking a highly energized, disciplined, and tech-passionate Android Application Framework Developer to join our Device Engineering team in Sunnyvale, CA. In this high-impact systems role, you will help build, certify, and operate Clover’s next-generation Android-based smart terminal devices.

You will bridge the gap between high-level Android applications and low-level hardware, taking direct ownership of core Android framework services, POS peripheral integration, and hardware communication architectures. If you thrive in an agile environment alongside like-minded, highly skilled engineers and are excited about building software that interacts directly with physical devices, we want to talk to you!

• Android Framework & Hardware Integration:
  Design and build Android application framework services and background daemons that directly interface with external hardware peripherals, payment kernels, and low-level microcontrollers.
• Peripheral Architecture & Vendor SDKs:
  Integrate POS vendor SDKs and build robust communication pipelines for external hardware including receipt printers, cash drawers, barcode scanners, and weighing scales.
• USB & Network Protocol Management:
  Manage Android USB OTG Host APIs, handle USB attach/detach events, manage dynamic USB hardware permissions, and implement socket programming for network-connected peripherals.
• System Infrastructure & Data Sync:
  Add new capabilities to core platform infrastructure and services, ensuring low-latency, sub-second data synchronization and communication across diverse terminal device types.
• Defect Triage & Troubleshooting:
  Investigate, isolate, and resolve complex system integration issues, OS regressions, and hardware peripheral bugs across production devices.
• Cross-Functional Certification & Product Alignment:
  Partner with product management to refine technical specifications and collaborate directly with international certification teams and hardware test labs.
• Production Reliability:
  Participate in a regular on-call rotation to provide production support and maintain fleet-wide device health.
• AI-First Engineering:
  Apply an AI-first mindset, leveraging AI-powered development tools (such as Claude Code, Git Hub Copilot, and coding agents) to accelerate framework development, optimize infrastructure, and streamline root-cause analysis.

• Experience & Mindset: 2+ years of professional software development experience with a strong focus on Android platform architecture, framework design, and a genuine eagerness to learn and innovate in POS device engineering.
• Android Application & Framework Depth:
  Hands-on experience developing native Android applications and background services in Kotlin and Java, with proven experience communicating with external physical hardware.
• USB & Networking Protocols:
  Practical proficiency with Android USB Host APIs (USB OTG), managing USB device permissions/events, and socket programming for network IP printers…