Senior Fullstack Software Engineer (Kotlin/Java/React) - Fintech

As the world’s pioneering local delivery platform, our mission is to deliver an amazing experience, fast, easy, and to your door. We operate in around 65 countries worldwide, powered by tech, designed by people. As one of Europe’s largest tech platforms, headquartered in Berlin, Germany, Delivery Hero has been listed on the Frankfurt Stock Exchange since 2017 and is part of the MDAX stock market index. We push hard, learn quickly and stay human along the way. It’s this wonderful mix of high performance and real community that makes Delivery Hero a place where ambition and belonging grow side by side. If you’re curious, collaborative and ready to dive deep into meaningful work, you’ll fit right in. We are on the lookout for a Senior Fullstack Software Engineer (Kotlin/Java/React)  to join our Fintech team and build worldwide innovative Wallet, Payment, and Anti-Fraud solutions with us. Work and scale our internal Payments engine that would handle payments for the entire Delivery Hero. If you're a creative problem solver who is eager to deliver solutions and hungry for a new adventure, an international workplace is waiting for you in the heart of Berlin! Be part of building the financial backbone of Delivery Hero. You’ll develop products that empower millions of customers and merchants, from seamless payments to innovative financial solutions like wallets and credit. Design, build, and deliver highly scalable software systems operating in complex, global business environments, used across more than 70 countries Lead backend and frontend engineering efforts with a strong focus on distributed systems, leveraging Java, Kotlin, modern frameworks such as Spring / Spring Boot, Hibernate, and JUnit and frontend technologies such as React / TanStack. Own services end-to-end by embracing a true “you build it, you run it” mindset, with deep involvement in infrastructure automation and continuous deployment. Drive high-quality software design by systematically applying design patterns, SOLID principles, and Domain-Driven Design (DDD). Build secure, resilient systems by applying secure coding best practices throughout the development lifecycle. Influence engineering culture through hands-on leadership, technical mentorship, and continuous improvement. Proven experience designing and delivering software systems in highly complex business domains at global scale, within fintech /payments. Deep backend engineering expertise with a strong preference for distributed systems. Hands-on mastery of Java, Kotlin, Spring / Spring Boot, Hibernate, and JUnit. Strong hands-on experience with TypeScript and React and PostgreSQL. A strong engineering ownership mindset with a passion for automation, CI/CD, and reliability. — Published by Delivery Hero. Apply on the employer's own posting.