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Salary: USD 154,000 - 200,000 / annual
Adyen is a global financial technology platform providing payments, data, and financial products for enterprise customers including Meta, Uber, H&M, and Microsoft. The company is seeking a Software Engineer II (Kotlin) to develop and maintain in-person payment solutions across a large fleet of payment terminals and SDKs.
In this role, you will work on Kotlin-based solutions for payment terminals and SDKs, including features such as accepting payments via credit/debit cards, Apple Pay, Google Pay, QR codes, and integrating with various point-of-sale systems. Your code will be deployed across Android and Linux-based payment terminals as well as backend systems using Kotlin Multiplatform. You will also contribute to C++ libraries central to payment business logic.
Key responsibilities include:
- Developing and maintaining payment features for global merchants
- Building and testing payment solutions using unit testing, integration testing, and automated testing via programmable robots
- Collaborating with engineers, product designers, and business stakeholders
- Debugging and solving cross-functional issues within Android applications
- Mentoring other engineers through code reviews, design reviews, and technical guidance
- Investigating new technical possibilities while working within existing frameworks
The role is based in the Chicago office. Adyen is an office-first company that values in-person collaboration and does not offer remote-only positions.
REQUIREMENTS:
- 5+ years of professional experience writing code in Kotlin
- Proficiency in building software for the Android platform
- Experience developing enterprise-level SDKs
- Expert-level knowledge of Kotlin, Android SDK, Jetpack Compose, Coroutines, Gradle, and Dependency Injection
- Experience writing and maintaining comprehensive automated unit and integration tests
- High level of personal accountability with strong technical skills, creative problem-solving, and collaborative spirit
- Demonstrated ability and desire to mentor and grow other engineers through code reviews, design reviews, and technical guidance
- Excellent verbal and written communication skills in English
NICE-TO-HAVE:
- Experience in non-JVM languages such as C or C++
- Experience building libraries used by other engineers
- Knowledge of security best practices and standards
- Experience working with Bluetooth-connected devices
- Background in the payments industry
