logo
Haystack

Junior Software Engineer

EU

October 8, 2026 at 10:22 AM

✨ AI summary

Location

  • Hamburg, Germany

Programming Languages

  • Java
  • TypeScript

Frameworks

  • Spring Boot
  • React
  • Material UI

Cloud Services

  • Kubernetes

Experience Level

  • Initial professional experience
We're working with a rapidly growing tech company that is revolutionising monetization and subscription management with an innovative cloud platform.

The Role

  • Implement and maintain microservices for the payment domain using Java, Spring Boot, Gradle, and Kubernetes.
  • Work on backend with relational and NoSQL databases, and frontend with React, TypeScript, and Material UI for efficient and secure payment processing.
  • Adhere to Clean Code principles for maintainability, especially for financial transactions.
  • Monitor for technical issues (tracking, alerts) to resolve them before they impact customers.
  • Provide technical support to users and customer service, finding quick and pragmatic solutions.
  • Ensure product quality through automated testing at relevant stages for sustainable development.

What You'll Need

  • Initial professional experience in software development and solid Java skills, ideally with Spring Boot.
  • Interest in digital payment and financial processes, with a willingness to learn new topics.
  • Curiosity and eagerness to learn, enjoying developing solutions collaboratively with your team.
  • Experience with payment, fintech, or integration environments is a plus (e.g., Adyen, Stripe).
  • Interest in clean system architectures, Domain-Driven Design, Microservices, and hexagonal architecture.
  • Proficiency in German (min. B2) and good English.

What's On Offer

  • Opportunity to significantly contribute to the future of monetization and subscription solutions.
  • Work in a powerful dev team that values close collaboration and provides autonomy.
  • Inspiring company culture with flat hierarchies and cross-functional teams.
  • Access to modern AI tools to support daily development tasks.

Apply via Haystack today!