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Junior Software Engineer

Wearehaystack — Germany · Posted ~2 hours ago

Junior Full-time

Skills

Java Spring Boot Gradle Kubernetes relational databases NoSQL databases React TypeScript Material UI Clean Code automated testing Microsoft Azure Amazon AWS SQL NoSQL

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Summary ✨ AI‑Generated

A fast-growing technology organization is seeking a Junior Software Engineer to build and maintain payment-domain microservices while contributing to frontend applications and cloud operations. You will work with Java, Spring Boot, Kubernetes, relational and NoSQL databases, React, and TypeScript, applying Clean Code and automated testing practices across critical workflows.

Highlights

Junior engineering role offering hands-on exposure across backend microservices, frontend development, cloud operations, databases, automated testing, and payment technology. The position emphasizes clean, maintainable code, reliability, monitoring, and sustainable product development.

Description

We are working with a fast-growing tech company that's disrupting the monetization and subscription management space. They are a European market leader in subscription management solutions, with their innovative cloud platform used in over 70 countries to help scale-ups and international corporations automate financial processes. The Role Implement and maintain microservices for the payment domain using Java, Spring Boot, Gradle, and Kubernetes. Work with relational and NoSQL databases in the backend and React, TypeScript, and Material UI in the frontend. Apply Clean Code principles for extendability and readability, especially for critical payment flows. Monitor and alert to identify technical issues before they impact customers. Support users and customer service with technical problems, providing quick and pragmatic solutions. Ensure high quality through automated testing for sustainable product development. Engage in platform operations within Microsoft Azure and Amazon AWS clouds, collaborating with DevOps. What You'll Need Initial professional experience in software development with solid Java knowledge; experience with Spring Boot is a plus. Interest in digital payment and financial processes with a willingness to learn new technical domains. Curiosity and eagerness to develop clean system architectures, including Domain-Driven Design, Microservices, and Hexagonal Architecture. Ability to question existing code to create maintainable solutions and continuously improve. Fluency in German (min. B2) and good English communication skills. Openness to using modern AI tools to enhance efficiency and problem-solving. What's On Offer Opportunity to take on responsibility and contribute ideas within a high-performing development team. Collaboration with experienced colleagues to develop solutions for real product and customer requirements. Modern AI tools provided as sparring partners to support your development work. A dynamic and inspiring company culture with flat hierarchies and cross-functional teams. Apply via Haystack today!