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FFLUX Systems GmbH
Darmstadt, Germany9 months ago
Grade
Senior
Work format
Remote, Hybrid
An email or a Telegram message to the recruiter
We are looking for a Backend Developer (m/f/d) to join a small, focused team working on the further development of our core product. This is not about short-term features, but about developing a large, long-lasting system with high quality requirements. You will be responsible for services and integrations, contribute your own ideas, and actively participate in the architecture, stability, and scalability of our platform. We are looking for FLUX Systems GmbH's partner – Why FLUX Work on a product used daily in industry – real impact, real processes Small teams, direct communication, plenty of room for creativity Flat hierarchies, honest feedback, and collaboration as equals
Development and further enhancement of our microservices-based backend (Spring Boot & Quarkus) Design, implementation, and operation of stable APIs, as well as event-driven integrations (Kafka) Implementation and support of database migrations (PostgreSQL / Flyway) Ensuring code quality, stability, and long-term maintainability Creation and maintenance of unit and integration tests (including Testcontainers) Shared responsibility for building and operating services: CI/CD (Jenkins), containers/Kubernetes, and deployment with Helm Close collaboration with frontend and product management to create a holistic, functional solution Further development of our technology stack (e.g., advancing Java to Java 25) and continuous improvements in development
Many years of experience in backend development using Java Excellent knowledge of Spring Boot and/or Quarkus (microservices) Solid understanding of PostgreSQL, data modeling, and Flyway migrations Experience with Kafka or similar messaging/event architectures Hands-on experience in CI/CD (e.g., Jenkins) and basic understanding of Kubernetes/Helm Clean Code, architectural understanding, and enjoyment of working with long-lasting systems Advantageous: integrations with ERP systems (D365/NAV/SAP) or OPC-UA German language skills at a native-like level
Hybrid work model: Home Office + office in Heilbronn/Bad Friedrichshall (or remote) Responsibility for your own areas of activity and active participation in the development of architecture/processes
Development and further enhancement of our microservices-based backend (Spring Boot & Quarkus) Design, implementation, and operation of stable APIs, as well as event-driven integrations (Kafka) Implementation and support of database migrations (PostgreSQL / Flyway) Ensuring code quality, stability, and long-term maintainability Creation and maintenance of unit and integration tests (including Testcontainers) Shared responsibility for building and operating services: CI/CD (Jenkins), containers/Kubernetes, and deployment with Helm Close collaboration with frontend and product management to create a holistic, functional solution Further development of our technology stack (e.g., advancing Java to Java 25) and continuous improvements in development We are looking for a Backend Developer (m/f/d) to join a small, focused team working on the further development of our core product. This is not about short-term features, but about developing a large, long-lasting system with high quality requirements. You will be responsible for services and integrations, contribute your own ideas, and actively participate in the architecture, stability, and scalability of our platform. Your profile: Many years of experience in backend development using Java Excellent knowledge of Spring Boot and/or Quarkus (microservices) Solid understanding of PostgreSQL, data modeling, and Flyway migrations Experience with Kafka or similar messaging/event architectures Hands-on experience in CI/CD (e.g., Jenkins) and basic understanding of Kubernetes/Helm Clean Code, architectural understanding, and enjoyment of working with long-lasting systems Advantageous: integrations with ERP systems (D365/NAV/SAP) or OPC-UA German language skills at a native-like level We are looking for FLUX Systems GmbH's partner – Why FLUX Work on a product used daily in industry – real impact, real processes Small teams, direct communication, plenty of room for creativity Hybrid work model: Home Office + office in Heilbronn/Bad Friedrichshall (or remote) Responsibility for your own areas of activity and active participation in the development of architecture/processes Flat hierarchies, honest feedback, and collaboration as equals
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