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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Java Developer - **Company:** AVILOO GmbH - **Location:** Duisburg, Germany - **Experience:** Expert - **Salary:** €47,448.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Artificial Intelligence, Amazon Web Services, Business Logic, Automation of Tests, Microsoft Azure, Cloud Computing, Software Quality, Code Review, Relational Databases, Hibernate (Java), Identity and Access Management, Java Persistence API, Junit, PostgreSQL, Apache Maven, Enterprise Messaging Systems, Microsoft SQL Server, Oracle (Applications), Scrum Methodology, Mockito, Prometheus, Systems Integration, Datadog, Enterprise Software Applications, Okta, Time Series Databases, ReactJS, Grafana, Spring-boot, Software Security, Reliability of Systems, Backend, Git, Vue.js, Event Driven Architecture, AngularJS, Kubernetes, Apache Kafka, Non-relational Database, Front End Software Development, Restful APIs, Software Version Control, Docker, Microservices - **Published:** June 17, 2026 - **Apply:** https://de.indeed.com/viewjob?jk=0932886af377fb61 ## About the Role Do you have experience in Test automation?, * 5+ years of professional experience in backend Java development. * Strong command of Java and the Spring / Spring Boot ecosystem. * Solid experience designing and consuming REST APIs and building microservices. * Hands-on experience with Docker. * Proficiency with relational databases (e.g. PostgreSQL, Oracle, MS SQL) and ORM frameworks (Hibernate / JPA). * Experience with automated testing (JUnit, Mockito) and build/version-control tooling (Maven, Git). * Comfortable working in an Agile / Scrum environment. * Professional working proficiency in English (B2 or higher). * Strong communication and presence, and a solution-oriented mindset. * Interest in exploring new topics. * Passion for using AI - you leverage technology to work faster, more accurately, and more efficiently. * Independent, precise, and pragmatic work style. * Team player who rolls up their sleeves when the situation calls for it. * A desire to work alongside colleagues in an office rather than alone at home. Nice to have: * Experience with event-driven systems and Apache Kafka. * Cloud platform experience (Azure, AWS or GCP). * Hands-on experience with Kubernetes. * Observability tooling (Grafana, Prometheus, OpenTelemetry) * Work with CI/CD pipelines. * Identity & access management (Keycloak / SSO) and API security. * Exposure to frontend frameworks (Angular, Vue or React) for full-stack collaboration. * Team-lead, mentoring or solution-architecture experience. ## Description * Design, develop and maintain robust backend systems and enterprise applications using Java and Spring Boot. * Build and operate distributed, microservices-based architectures, including containerization and deployment on Kubernetes. * Design, implement and extend REST APIs and integrate with internal and external systems. * Implement event-driven workflows and asynchronous processing with messaging technologies such as Apache Kafka. * Model data and optimize performance across relational and non-relational databases (PostgreSQL, Time Series Databases). * Develop batch and workflow processing, business logic and system integrations. * Ensure software quality through automated testing, code reviews and adherence to coding standards. * Contribute to architecture decisions and continuously improve development processes, scalability and system reliability. * Collaborate with analysts, product owners and other teams to align technical implementation with business requirements. * For all of these tasks, incorporate AI as a tool. * Creative freedom in a company that is set to increase its revenue a hundredfold in the coming years. * A workplace with a true start-up mentality, flat hierarchies, and fast decision-making. * Use of cutting-edge tools and artificial intelligence for optimization. ## Related Videos - [Agile work at CARIAD – Creating a customer web application for controlling the vehicle ](https://www.wearedevelopers.com/videos/200-agile-work-at-cariad-creating-a-customer-web-application-for-controlling-the-vehicle) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [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) - [From boy scouting to redrawing the landscape](https://www.wearedevelopers.com/videos/1140-from-boy-scouting-to-redrawing-the-landscape) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [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) - [System change: restart as developer?](https://www.wearedevelopers.com/magazine/39-system-change-restart-as-developer) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)