This is Adyen Adyen provides payments, data, and financial products in a single solution for customers like Meta, Uber, H&M, and Microsoft - making us the financial technology platform of choice. At Adyen, everything we do is engineered for ambition.  For our teams, we create an environment with opportunities for our people to succeed, backed by the culture and support to ensure they are enabled to truly own their careers. We are motivated individuals who tackle unique technical challenges at scale and solve them as a team. Together, we deliver innovative and ethical solutions that help businesses achieve their ambitions faster. Adyen is seeking an (Senior) Android Engineer to shape the future of mobile payments for leading companies. This role demands a proactive, detail-oriented engineer with deep expertise in building robust, enterprise-level Android SDKs. A typical day for a Senior Android Engineer at Adyen involves a mix of focused Kotlin development for enterprise-level Android SDKs, collaborating with teams on new payment features, and architectural design. You'll be actively involved in code reviews, ensuring high quality, and may research new technologies like Jetpack Compose or security best practices. Interesting projects often include integrating novel payment methods, enhancing secure data flows, or optimizing SDK performance for global businesses. Who you are:  * A motivated, enthusiastic team player: collaborate with other engineers, product designers, and business stakeholders * Able to provide reliable and clearly understandable code * Willing to learn and improve * Flexible, open to new ideas * Have a keen eye for detail * Able to debug and solve problems within the Android application and collaborate effectively on cross-functional issues * Proactive in bringing great ideas to improve our solution * Enthusiastic to investigate new technical possibilities, yet able to work within existing frameworks * Self-disciplined and enjoy working at a fast pace while managing and prioritizing goals Must have qualifications: * A minimum of 5 years of experience writing code in Kotlin * A minimum of 8 years of experience building software for the Android platform * Experience in development of enterprise level SDKs. * Expert level knowledge of Kotlin, Android SDK, Jetpack Compose, Coroutines, Gradle, Dependency Injection  * Experience writing and maintaining a comprehensive suite of automated unit and integration tests * A high level of personal accountability and a blend of strong technical skills, creative problem-solving, and a collaborative spirit * Ability and desire to mentor and grow other engineers through code reviews, design reviews, and over-the-shoulder debugging * Excellent verbal and written communication skills in English.  Good to know: * Experience with building libraries used by other engineers * Knowledge about security best practices and standards * Experience working with Bluetooth-connected devices * Experience working in payment industry   This role is based out of our Amsterdam office. We are an office-first company and value in-person collaboration; we do not offer remote-only roles. Our Diversity, Equity and Inclusion commitments  Our unique approach is a product of our diverse perspectives. This diversity of backgrounds and cultures is essential in helping us maintain our momentum. Our business and technical challenges are unique, and we need as many different voices as possible to join us in solving them - voices like yours. No matter who you are or where you’re from, we welcome you to be your true self at Adyen.  Studies show that women and members of underrepresented communities apply for jobs only if they meet 100% of the qualifications. Does this sound like you? If so, Adyen encourages you to reconsider and apply. We look forward to your application! What’s next? Ensuring a smooth and enjoyable candidate experience is critical for us. We aim to get back to you regarding your application within 5 business days. Our interview process tends to take about 4 weeks to complete, but may fluctuate depending on the role. Learn more about our hiring process here. Don’t be afraid to let us know if you need more flexibility. This role is based out of our Amsterdam office. We are an office-first company and value in-person collaboration; we do not offer remote-only roles.