> Markdown version of [/jobs/ext/105863-product-software-engineer-back-end-java](https://www.wearedevelopers.com/jobs/ext/105863-product-software-engineer-back-end-java). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Product Software Engineer (back end JAVA)

- **Company:** Interzero GmbH & Co. KG
- **Location:** Köln, Germany (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Automation of Tests, Relational Databases, DevOps, Hibernate (Java), Java Persistence API, PostgreSQL, MySQL, Software Product Management, Cloud Services, Next.js, TypeScript, ReactJS, Spring-boot, Gitlab, Containerization, Gitlab-ci, Front End Software Development, Software Coding, Restful APIs, Docker, Service Stack
- **Published:** May 20, 2026
- **Apply:** https://de.indeed.com/viewjob?jk=25b1dffb710e7051

## About the Role

Do you have experience in TypeScript?, * Experience: 5 + years of professional Java experience, ideally with Spring Boot and Hibernate/JPA.

 * Expertise: Deep knowledge of RESTful API design, relational databases (MySQL/PostgreSQL), and containerization with Docker.
 * Frontend-Familiarity: Familiarity with our frontend technology stack (React/Next.js/TypeScript) can be advantageous; if you want to work full-stack, you can.
 * DevOps: Familiarity with GitLab CI/CD - our DevOps team handles the heavy lifting, but you know your way around.
 * Architectural Judgment: A sense for clean architectures, test automation, and the judgement to choose the right pattern at the right time.
 * Languages: Fluent English (German is a bonus), a collaborative mindset and genuine curiosity about how products succeed in the real world.
 * EU-Work: A valid EU work permit; candidates already based in Germany (or nearby EU countries) are strongly preferred.

## Description

* Collaboration: Together with Product, UX and Front-End colleagues, design and implement the Java back ends of both brand-new and evolving products you'll stay with for the long haul.
 * Modeling: Translate business goals into sturdy domain models and reliable services that deliver real customer value.
 * Architecture: We're moving toward a headless, microservice-oriented landscape. As a senior, you'll help create clean APIs, refine coding standards and champion the right refactorings.
 * Automation: Build and refine GitLab pipelines, Docker images and workflow engines that remove manual steps - both in development and inside the products themselves.
 * Frontend partnership: Partner closely with front-end teams so the data, endpoints and performance they need are always there, making the user experience shine.
 * Leadership: Mentor junior engineers, run architecture sessions or even lead a small squad when it fits your personal goals.
 * Innovation: Experiment with new Java features, cloud services and patterns that help us close product loops faster. Your ideas are welcome.


## Related Videos

- [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of)
- [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered)
- [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform)
- [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company)
- [Coding for Good: Achieving social change with an app](https://www.wearedevelopers.com/videos/1645-coding-for-good-achieving-social-change-with-an-app)
- [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready)

## Related Articles

- [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)
- [Finding Jobs in Germany](https://www.wearedevelopers.com/magazine/375-finding-jobs-in-germany)
- [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies)
- [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)
- [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)
- [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)