Kleinanzeigen reaches 36M+ monthly users and is Germany’s leading online classifieds market. We are a sustainability-focused platform where you won't just write code; you will power the services that bridge our high-traffic backend with seamless user experiences.
Joining the Edge team means working on the bedrock of Kleinanzeigen, dealing with high-throughput, low-latency and highly-efficient services that require a 'you build it, you run it' mindset, offering you deep exposure to modern infrastructure and platform architecture.
As a Backend-Heavy Full Stack Engineer, you’ll be a central driver for the services that power user privacy and media delivery at scale. You will own the full development lifecycle: from design and implementation to deployment and maintenance. Designing and scaling critical microservices using mostly Java and Spring Boot that support 36M+ monthly users.
Full Lifecycle Responsibility: Applying "build it, run it" mentality—you aren't just writing code; Crafting seamless user experiences by integrating our robust backend APIs with high-quality, maintainable frontends in TypeScript and React.
Driving improvements in our development practices, testing standards,



and CI/CD pipelines to keep our team velocity high and our systems healthy. For frontend components, you will maintain high standards using tools like Vitest and Playwright.
We believe in picking the right tool for the job. Backend: Java, Spring Boot, Golang, python
Frontend: NextJs, React, TypeScript
Infrastructure & Messaging: AWS, Kafka, CloudFormation, Kubernetes
Autonomy: We operate in a highly autonomous, cross-functional environment where teams own their services end-to-end.
We follow Agile methodologies with a focus on code quality, pair programming, and CI/CD best practices.
We work in a hybrid configuration that values flexibility, deep focus time, and collaborative problem-solving.
Tech Stack: You have strong experience in Java/Go, and you are comfortable balancing that deep backend work with frontend execution using React/TypeScript.
The chance to be a key player in a growing, highly skilled team
~ Benefits like private health insurance.
~ Career development, including individual training budget.
~ 28 days of holidays

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📌 Full Stack Engineer (hybrid or remote) (Barcelona)
🏢 Adevinta
📍 Barcelona