Sr. Android Engineer

Sr. Android Engineer — Clover Sport

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.

Clover is a pioneer in the fintech space, dedicated to transforming the way small and medium‑sized businesses operate. As a part of Fiserv, we provide an all‑in‑one point‑of‑sale (POS) and business management platform that handles everything from seamless payment processing to inventory and staff management. With over 15 billion transactions processed annually, Clover empowers merchants worldwide to run their businesses more efficiently and grow with confidence.

As a Senior Android Engineer for Clover Sport, you will own the development of high‑volume, mission‑critical point‑of‑sale software that powers concessions and retail for professional sports teams and venues nationwide. Operating in packed stadiums with unpredictable networks, you will ensure our applications remain fast, stable and highly reliable under pressure. You will drive feature delivery from concept to launch across multiple POS applications and a shared library platform, balancing technical modernization with practical, business‑driven decision‑making while mentoring your peers.

• Design, build and ship features across three POS applications and a shared ecosystem of supporting libraries and applications
• Work within a multi‑module Gradle architecture, making sound decisions about where code belongs and how modules expose their APIs
• Build robust order, payment and fulfillment flows
• Integrate with the broader device and hardware ecosystem via AIDL, Content Observers and Android Intents, plus specialized payment and receipt hardware (printers, scanners, kitchen display systems, etc.)
• Write new code in Kotlin, applying modern patterns while pragmatically maintaining and improving legacy Java
• Contribute to UI using Conductor navigation, View Binding and Epoxy, plus Jetpack Compose (Material
  3)
• Write meaningful unit tests (JUnit, MockK, Robolectric) and instrumented/UI tests (Espresso, UiAutomator), keeping CI green
• Participate in code reviews, uphold the team’s code‑style standards and mentor mid‑level engineers
• Lead by example, treat everyone with respect and prioritize quality above all else
• Work directly with third‑party vendors to define technical requirements and build integrations

• 5+ years of professional Android development, with significant Kotlin experience and comfort working in mixed Kotlin/Java codebases
• Strong command of multi‑module Gradle projects and dependency management at scale
• Deep understanding of Android fundamentals: lifecycle, background work, IPC (AIDL, Intents, Content Observers) and threading/concurrency
• Experience with networking (OkHttp, Retrofit) and local persistence (Room / SQLite)
• A solid testing discipline across unit and instrumented tests
• Proven ability to maintain and refactor large, long‑lived production codebases without breaking things
• Comfort working in a Git‑flow branch/release model and CI/CD pipelines (Git Hub Actions)

• Fintech, POS, payments or hardware‑integration experience (Clover SDK, card readers, receipt printers, barcode scanning)
• Jetpack Compose and modern UI architecture experience
• Experience modernizing legacy code (e.g., RxJava → coroutines, kapt → KSP, migrating to Compose)
• Hands‑on experience with dependency injection (Dagger
  2) and reactive programming (RxJava), ability to reason about complex asynchronous flows
• Experience leveraging AI‑assisted development tools (e.g., Git Hub Copilot, Google Gemini) to accelerate coding, debugging, code review and test generation while applying strong judgment to validate and…