Senior Java Developer

Job description

About the Role As a Senior Java Developer in KSB’s Digital Unit, you will be at the forefront of innovation, contributing to cutting-edge projects in Industrial IoT (IIoT), factory digitalization, sales automation, and digital sales platforms. You will work in a collaborative, international environment with teams across Germany and other European countries. We are looking for a passionate team player with strong technical expertise, leadership qualities, and a commitment to delivering high-quality, maintainable, and scalable software solutions. Key Responsibilities · Lead the design and development of complex software components using modern Java technologies. · Apply software architecture principles and design patterns to build robust systems. · Guide and mentor junior and mid-level developers through code reviews and joint implementation. · Collaborate with cross-functional teams across geographies. · Participate in the full software development lifecycle (Agile or Waterfall). · Ensure high standards of code quality, performance, and security. · Contribute to CI/CD pipelines and containerized deployments in cloud and on-prem environments. Required Experience · Minimum 6 years of hands-on experience in Java development. · Participation in more than 3 customer projects. · Proven experience in: · - Designing non-trivial software components. · - Applying design patterns and architectural principles. · - Leading or mentoring development teams. Technical Skills (at least 3 from each category) · Frameworks & Tools: · Spring / Spring Boot / Spring REST · Hibernate, JUnit · Maven, Jenkins, GIT · Swagger, · Protocols & Data Formats: · HTTP, MQTT, OAuth · XML, JSON, JWT, OData · Infrastructure & DevOps: · Docker, Docker Swarm, Kubernetes · Kafka, ActiveMQ · Azure (IaaS, PaaS, Functions), AWS (Lambda, S3) · Databases: · MS-SQL, Oracle, PostgreSQL, MySQL · Hadoop, Apache Spark, SAP HANA, Redis Other Qualifications (at least 3 from each category) · Strong understanding of SDLC and Agile methodologies · Experience with code reviews, JIRA/Confluence · Familiarity with REST APIs, API gateways · CI/CD practices and Infrastructure as Code · Container orchestration with Kubernetes or Docker Swarm