Ph3Backend Software Developer (Java/Python) /h3 pJob reference: BE-CSS-DSP- -GRAE /p pPosted: | Closing date: /p h3Job Information /h3 pLocation: TN Switzerland, Canton of Lucerne, Switzerland /p pEmployer: CERN /p pContract duration: 24 months, possible extension up to 36 months /p pWorking hours: 40 hours per week /p pJob flexibility: Hybrid /p pTarget start date: 01-August-2026 /p h3Job Description /h3 pYou will contribute to the design, development, testing and maintenance of the Data Processing Platform (DPP), used for both offline and online analysis of accelerator and beam data. Working within the Data Processing team of the CERN Controls Software Services group and following the Scrum methodology, you will help build reliable and scalable backend services supporting the control, monitoring and analysis of particle accelerators and equipment. /p pYou will participate in the validation and evolution of the platform architecture, develop production‑ready integrations, and contribute to the modernisation of existing services through the migration of legacy systems to the DPP. /p h3Responsibilities /h3 ul liContribute to the design, development, testing, and maintenance of software components for the Data Processing Platform (DPP). /li liCollaborate with senior developers and stakeholders to gather requirements and implement reliable software solutions for accelerator controls and data processing. /li liParticipate in the evolution of the platform by contributing to new features, integrations, and improvements to existing services. /li liContribute to software quality activities, including testing, code reviews, debugging, and documentation. /li liLearn and apply modern software engineering practices, tools, and technologies used within the CERN Controls Software Services group. /li /ul h3Profile Qualifications /h3 pExperience in software development using Java and Python. /p ul liInterest in software quality practices, testing methodologies, and maintainable software design. /li liInterest in cloud‑native technologies and modern software platforms; familiarity with Kubernetes, Knative, or similar technologies would be considered an asset. /li liGood knowledge of object‑oriented programming principles and software engineering fundamentals. /li liUnderstanding of concurrent programming and distributed systems concepts. /li liKnowledge of the Spring Framework ecosystem (Spring Boot). /li liFamiliarity with version control systems, CI/CD concepts, and automated development workflows. /li liExposure to monitoring and logging tools such as Prometheus, Grafana, or the ELK Stack would be considered an advantage. /li liSpoken and written English, with a commitment to learn French. /li /ul h3Eligibility Criteria /h3 pYou are a national of a CERN Member or Associate Member State and have never had a CERN fellow or graduate contract before. By the application deadline, you have a maximum of two years of professional experience since graduation in Software Engineering, Computer Science (or a related field) and your highest educational qualification is either a Bachelor's or Master's degree. Applicants without a University degree, or with a PhD are not eligible. /p h3Benefits /h3 ul liA monthly stipend between 5266‑5793 Swiss Francs per month (tax free) depending on your degree. /li li30 days of paid leave per year plus 2 weeks annual closure. /li liCoverage by CERN’s comprehensive health insurance scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund. /li liFamily, child and infant monthly allowances depending on your individual circumstances. /li liRelocation package (installation grant and travel expenses) depending on your circumstances. /li liPossibility to extend your contract up to 36 months. /li liOn‑the‑job and formal training including language classes. /li /ul h3Contact Information /h3 pThis role is available through Eurojobs. For further details, contact the recruitment team. /p /p #J-18808-Ljbffr