Junior Full-Stack Software Engineer (FAP-BC-DL-2026-143-GRAE)
Hybrid · Genève, Geneva, Switzerland
Job Summary
Junior Full-Stack Software Engineer to design and develop full-stack enterprise applications for CERN's Corporate Information Systems. Responsibilities include designing and implementing both frontend and backend features with Java, Spring Boot, and JavaScript/React; optimizing SQL queries and integrating with messaging/integration systems; configuring and debugging integration/messaging workflows; providing user and production support; working in an agile self-organised team; contributing to CI/CD and containerised development workflows; maintaining and enhancing legacy applications; collaborating with Product Managers and stakeholders and participating in knowledge sharing.
Required Qualifications
- Experience developing full-stack enterprise applications using Java, Spring Boot, and JavaScript frontend frameworks (e.g. React).
- Experience with build, test, and deployment toolchains.
- Experience working with SQL and relational databases and Java database integration.
- Experience working in agile development teams.
- Experience with modern development workflows including Git, CI/CD (e.g. GitLab), containerisation, and GitOps.
- Experience maintaining and implementing features in legacy applications.
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