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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend Developer (Spring / Kotlin) - **Company:** ALS Holding GmbH - **Location:** Hilden, Germany (Remote available) - **Contract:** Temporary contract - **Skills:** Clean Code Principles, Confluence, JIRA, Automation of Tests, Microsoft Azure, Cloud Computing, Code Review, Continuous Integration, Relational Databases, Software Design Patterns, Github, Hibernate (Java), Java Persistence API, PostgreSQL, Microsoft SQL Server, OAuth, Performance Tuning, Scrum Methodology, Software Architecture, RabbitMQ, Prometheus, Swagger, JSON Web Token, SQL Databases, TypeScript, Openapi, Data Logging, File Transfer Protocol (FTP), Grafana, Spring-boot, Software Security, Reliability of Systems, Backend, Vue.js, Kotlin, Event Driven Architecture, Build Management, Containerization, Gitlab-ci, Git Flow, Kubernetes, Apache Kafka, Front End Software Development, Api Design, Restful APIs, Docker, Microservices - **Published:** June 2, 2026 - **Apply:** https://de.indeed.com/viewjob?jk=4f0fedb44898fe01 ## About the Role Do you have experience in TypeScript?, * Strong experience with Spring Boot; Kotlin experience preferred (or willingness to learn) * Solid knowledge of relational databases (e.g. PostgreSQL, SQL Server), SQL, schema design, and ORMs such as Hibernate / Spring Data JPA * Experience with HTTP/REST APIs, SFTP, and API design/documentation (OpenAPI / Swagger) * Commitment to clean, maintainable code (Clean Code, SOLID, design patterns, code reviews) and automated testing (unit, integration, end-to-end) * Experience with Git workflows and modern development practices * Experience with microservices and event-driven architectures (e.g. Kafka, RabbitMQ) and cloud-native development, ideally on Microsoft Azure * Familiarity with Kubernetes, Docker, and CI/CD pipelines (GitLab CI/CD, GitHub Actions) as well as basic understanding of application security (OAuth2, JWT, secure API design) * Experience with monitoring, logging, and tracing tools (e.g. Grafana, Prometheus, ELK, OpenTelemetry) and understanding of scalability, resilience, and performance optimization * Agile mindset with experience in Scrum/Kanban and tools such as Jira or Confluence, willingness to support frontend topics (Vue.js / TypeScript is a plus) * Strong communication skills in English ## Description * Work on a large-scale Customs Management System processing thousands of declarations every day * Design and build modern backend services with Spring Boot, Kotlin, and cloud-native technologies * Take ownership of technical solutions and contribute to architectural decisions * Work with modern technologies such as Kubernetes, Docker, Kafka/RabbitMQ, and Microsoft Azure * Collaborate closely with international, cross-functional teams in an agile environment * Opportunity to shape engineering standards and improve system reliability * Drive technical innovation and contribute proactively with your ideas * A culture that values ownership and continuous learning * High level of flexibility and autonomy in how you approach technical challenges * Fully remote setup with flexible working hours and regular team events in European cities ## Related Videos - [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) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [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) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) ## Related Articles - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023) - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023) - [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) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Software Developer Salary in Austria [2023]](https://www.wearedevelopers.com/magazine/213-software-developer-salary-in-austria-2023) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)