Sr. Engineer - Device Engineering - In-person Commerce

Fiserv•Sunnyvale, CA

1d•Onsite

About The Position

You will join the Clover Device Engineering team, which is responsible for the core software and operations of Clover’s Android-based payment terminals. Clover delivers an elegant end-to-end Point of Sale system, powering millions of daily transactions for merchants globally. In this role, we're looking for an experienced Systems Engineer with a deep understanding of the lower end of the stack to help build, certify, and operate Clover’s Android-based payment terminals. If you are a highly energized, self-sufficient, disciplined professional with a strong passion for technology to work in an agile team of like-minded highly skilled and talented individuals, please apply today!

Requirements

5+ years of software development experience with a focus on architecture and design of Android devices and platforms.
Advanced proficiency in C programming and at least one other major language used in AOSP (Java, C++, or Kotlin).
Strong experience working at the lower end of the stack, including MCU/ARM Cortex development and RTOS.
Android app development experience using Kotlin and native code.
Experience in UI development, optimal performance tuning, and adaptation to various screen sizes.
General understanding of security protocols (encryption/decryption, PKI, HSM) and proficiency with Git/Gerrit.
Excellent teamwork and communication skills; ability to work as a strong individual contributor under pressure.

Nice To Haves

Previous experience or a strong foundational understanding of L2 payment kernels (highly preferred).
Direct experience with EMV certification processes.
Knowledge of JNI (Java Native Interface) for bridging lower-stack C code with Android applications.

Responsibilities

Design and implement solutions that span across Android applications, Inter-CPU communication, RTOS, and L2 payment kernels.
Add new features to our existing products (such as dynamic currency conversion, offline payment support, Android Pay, Apple Pay, mobile wallets, etc.).
Troubleshoot issues that may span across a wide range of device types, focusing on low-level system integration.
Take ownership of specific payment components and low-level firmware modules.
Work with international certification teams and test organizations to ensure payment kernel compliance.
Work with product management to clarify and/or create specifications.
Triage bugs related to payment applications and related infrastructure; troubleshoot complex system integration issues to ensure resolution.
Perform production support services as part of a regular on-call rotation.