Senior Kotlin Engineer – Android SDKs for Payments (Chicago)

Adyen; Chicago (IL); On-site; USD 154,000 - 200,000; Full time

Job summary

Adyen in Chicago is seeking a passionate Kotlin Engineer to help build our in-person payments software powering terminals and SDKs. You will write Kotlin across Android, Linux, and backend services, with C++ interop where needed.

You’ll collaborate with product designers and other engineers to deliver reliable features, maintain an automated test suite, and mentor teammates while working in a fast-paced, office-first environment based in Chicago.

Qualifications

• 5+ years of Kotlin coding experience.
• Proficiency building software for the Android platform.
• Experience developing enterprise-level SDKs.
• Expert knowledge of Kotlin, Android SDK, Jetpack Compose, Coroutines, Gradle, Dependency Injection.
• Experience writing and maintaining automated unit and integration tests.
• Strong accountability, creative problem-solving, and collaboration.
• Ability to mentor engineers through code reviews and debugging.
• Excellent verbal and written communication skills in English.

Responsibilities

• Develop Kotlin solutions for payment terminals and SDKs across Android and Linux devices.
• Build and maintain enterprise-grade SDKs and libraries, including C/C++ interop.
• Collaborate with engineers, product designers, and business stakeholders to deliver features.
• Write and maintain automated unit and integration tests.

Skills

Kotlin

Android development

Jetpack Compose

Coroutines

Gradle

Dependency Injection

Unit & integration tests

Mentoring teammates

English communication

Education

Bachelor's degree in Computer Science or related field

Tools

Android SDK

Gradle

C/C++ interop

Android Studio

Job description

Adyen in Chicago is seeking a passionate Kotlin Engineer to help build our in-person payments software powering terminals and SDKs. You will write Kotlin across Android, Linux, and backend services, with C++ interop where needed.

You’ll collaborate with product designers and other engineers to deliver reliable features, maintain an automated test suite, and mentor teammates while working in a fast-paced, office-first environment based in Chicago.