Senior Java Engineer Job in Geneva, Switzerland

At CERN, the European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. They use the world's largest and most complex scientific instruments to study the basic constituents of matter, the fundamental particles. The particles are made to collide together at close to the speed of light. The process gives the physicists clues about how the particles interact, and provides insights into the fundamental laws of nature.

Senior Java Engineer Job Description

As a Senior Java Engineer, you will join a self-organised agile product team and you will be responsible for evolving, re-engineering and maintaining the back end of CERN's administrative information systems, aligned with the group's strategy to modernise, replace, and consolidate legacy architectures and business-critical applications. More specifically, you will take on the following responsibilities:

• Design, develop, and test new features and software components.
• Lead cross-team technical initiatives and deliver proof of concepts demonstrating product feasibility.
• Maintain and improve group-wide high standards and guidelines of software engineering practices.
• Identify areas of improvement in the technology landscape of the group, and recommend solutions.
• Mentor junior software developers.
• Provide user support including analysing user requirements, synthesizing, specifying and following-up on both software- and non-software related issues.

Senior Java Engineer Job Requirements

Master's degree or equivalent relevant experience in the field of computer science or a related field.

Experience:

Required:

• Demonstrated experience in the design and development of Java-based enterprise solutions built on top of industry standards (e.g. Spring Framework, Spring Boot).
• Deep understanding of modern software architectures and API design.
• Deep understanding of object-oriented and functional programming paradigms, design and architectural patterns, and their application in the Java ecosystem.
• Deep understanding of modern software development life cycles and CI/CD.
• Good knowledge of SQL, database systems, and their integration with Java applications.
• At ease with Java build tools, particularly, Maven and Gradle.
• Passionate about software craftsmanship, acquiring new skills, and exploring learning opportunities.

• Experience with modern CI/CD tools (e.g. Atlassian Bamboo, Jenkins).
• Understanding of enterprise messaging systems and/or stream-processing platforms, such as RabbitMQ and Apache Kafka.
• Familiarity with rule-based systems, particularly, Drools.
• Familiarity with Elasticsearch.
• Familiarity with Docker and Kubernetes.

• Knowledge of programming techniques and languages: deep understanding of object-oriented and functional programming paradigms, design and architectural patterns, and their application in the Java ecosystem.
• Knowledge of best practices for developing secure software: knowledge of web application vulnerabilities (as defined by OWASP), and how to prevent them.
• Design of databases/repositories: experience with relational databases and database modeling.
• Re-use, refactoring, integration and porting of existing software: working effectively with legacy code through continuous improvement, refactoring, and technology migration; provide re-usable components that can be shared between multiple repositories.
• Knowledge and application of software life-cycle tools and procedures: scrum/Kanban, issue tracking systems, Git, dependencies and build tools (Maven, Gradle).
• Technical advice and guidance: providing solutions to technical problems, and lead by example junior members of the team.

• English spoken and written, with the ability to draw-up specifications and/or reports, and/or to make oral presentations.
• The ability to understand and speak French or an undertaking to acquire it.

Senior Java Engineer Application Information

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