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

Berlin, de💼 Full-time🗓 2026-07-30 → 2026-09-27

Core

Design, build, and deliver highly scalable software systems for global Wallet, Payment, and Anti-Fraud solutions powering millions of customers and merchants.

Role type

Senior Fullstack Software Engineer (Backend/Infrastructure focus)

Builds

Internal Payments engine, Wallets, Credit products, and Anti-Fraud systems for Delivery Hero

Domain

Fintech / Global Payments / Distributed Systems

Required skills

Java, Kotlin, Spring / Spring Boot, Hibernate, JUnit, TypeScript, React, PostgreSQL, Distributed Systems, CI/CD, Automation

Preferred skills

Design patterns, SOLID principles, Domain-Driven Design (DDD), Secure coding practices, Technical mentorship

Technologies

Java, Kotlin, Spring Boot, Hibernate, JUnit, React, TanStack, TypeScript, PostgreSQL

Responsibilities

Lead backend and frontend engineering efforts; Own services end-to-end with 'you build it, you run it' mindset; Drive high-quality software design; Build secure, resilient systems; Influence engineering culture through hands-on leadership.

Seniority

Senior, hands-on IC with leadership responsibilities

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