Android AOSP Device Software Engineer

Fiserv

Sunnyvale, CA, United StatesFull-time$160,000–$240,000Posted Oct 16, 2026

About the role

Calling all innovators - find your future at Fiserv.

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.

Job 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 do

Lead 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 TrustZone integrations.

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

Experience you’ll need to have

7+ 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, SystemServer, 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 TrustZone / 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:

Fuel Your Life program to support your physical, financial, social, and emotional well-being

Paid holidays and generous time away policies

No-cost mental health support through Employee Assistance Programs

Living Proof program to recognize your peers’ extra effort with points redeemable for rewards

Eight Employee Resource Groups to foster a collaborative culture and expand your network

·Unparalleled professional growth with training, development, and internal mobility opportunities

Medical, dental, vision, life, and disability insurance options available from day one

Retirement planning and discounted shares with the Employee Stock Purchase Plan

Tuition assistance and reimbursement program

Paid parental, caregiver, and military leave

#LI-SH2

Salary Range

$160,000.00 - $240,000.00

These pay ranges apply to employees in Sunnyvale, California. Pay ranges for employees in other states may differ.

It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.

For incentive eligible associates, the successful candidate is eligible for an annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards in the Company’s sole discretion.

Thank you for considering employment with Fiserv. Please:

Apply using your legal name

Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).

Our commitment to Equal Opportunity:

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.

If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact AskHR.US@fiserv.com. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv’s Disability Accommodation Policy for additional information.

Note to agencies:

Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

Warning about fake job posts:

Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.

Responsibilities

  • Lead architecture and technical design for custom AOSP builds across current and next-generation payment terminals.
  • Develop and optimize Android system services, background daemons, and framework-layer components.
  • Integrate Android frameworks with native C/C++ layers, HAL, and kernel teams.
  • Build and maintain factory flashing tools, diagnostic software, and board bring-up daemons with manufacturing partners.
  • Design platform security workflows involving PKI provisioning, SELinux policies, and HSM or ARM TrustZone integrations.

Qualifications

  • 7+ years of software development experience focused on customizing, building, and deploying AOSP at the platform or OS layer.
  • Experience architecting and customizing Android devices and platform components such as frameworks/base, SystemServer, JNI, and AIDL/HIDL.
  • Proficiency in at least two of Java, C++, C, or Kotlin.
  • Hands-on experience adapting Android frameworks, system services, and HALs.
  • Proficiency with AOSP build and revision control tools, including Git, Gerrit, repo, Android.bp, and Android.mk.
  • Knowledge of platform security, encryption, PKI certificate management, and HSMs.
  • Experience with Android HAL development, Project Treble, the Linux kernel, device drivers, or ARM TrustZone/TEE is desirable.
  • Experience mentoring engineers, leading architecture reviews, and providing technical leadership is desirable.

Benefits

  • Well-being support through the Fuel Your Life program
  • Paid holidays and generous time away policies
  • No-cost mental health support through Employee Assistance Programs
  • Peer recognition rewards and Employee Resource Groups
  • Professional training, development, and internal mobility opportunities
  • Medical, dental, vision, life, and disability insurance
  • Retirement planning and discounted shares through the Employee Stock Purchase Plan
  • Tuition assistance and reimbursement
  • Paid parental, caregiver, and military leave

Skills mentioned

Android DevelopmentJavaC++CGitLinuxEmbedded SystemsEmbedded Software DevelopmentCybersecuritySystem Design

About Fiserv

Fiserv, Inc. (NASDAQ: FISV) is a global technology leader committed to delivering innovative and transformative financial services experiences for clients in more than 100 countries.

IT Services and IT Consulting10,001+ employeesMilwaukee, Wisconsin

H-1B sponsorship history

Historical employer filing data was found for Fiserv. The employer record includes 2,526 historical certified applications. This is employer-level history, not a guarantee that this role currently offers sponsorship.