Software Developer for a Data Platform (BE-CSS-DSP-2026-23-GRAP) at CERN

Geneva, Geneva, Switzerland -

Full Time

Start Date

Immediate

Expiry Date

17 May, 26

Salary

7004.0

Posted On

16 Feb, 26

Experience

2 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Core Java, Spring Framework, Spring Boot, gRPC, REST API Design, Distributed Systems, Microservices Architecture, Docker, Podman, Kubernetes, Spark Structured Streaming, Apache Beam, Kafka Streams, Knative, OpenFaaS, Python

Industry

Research Services

Description

Job Description Join our team of experienced software engineers and work on our new cutting edge big data processing and analysis platform. This platform will extend UCAP, our real-time stream processing platform, and combine it with NXCALS, our petabyte-scale offline data storage and analysis system. Your responsibilities Carry out hands-on research on open-source data processing frameworks such as Spark Structured Streaming, Apache Beam, Kafka Streams, and on modern Kubernetes-based deployment solutions such as Knative and OpenFaaS, based on your research, together with your new colleagues. Design, implement, and optimise a high-performance and scalable data analysis platform using Java, based on your research and in collaboration with your new colleagues. Work closely with accelerator physicists and equipment specialists, to design tailored and user-friendly libraries, APIs and configuration facilities to enable this user community to quickly and easily develop and deploy both traditional and ML algorithms written in Python and Java. More information here. Your profile Proven experience as a Backend Software Engineer or similar role. Practical experience with the Spring Framework (Spring Boot). Experience with serverless frameworks, particularly Knative and/or OpenFaaS, is desirable, but not mandatory. Experience with Python and its ecosystem is desirable, but not mandatory. Experience with CI/CD pipelines and tools is desirable, but not mandatory. Experience with data processing frameworks (e.g. Apache Kafka, Apache Beam, Apache Spark) is desirable, but not mandatory. Experience with monitoring and logging tools (e.g. Prometheus, Grafana, ELK Stack) is desirable, but not mandatory. Skills Proficiency in Core Java and its ecosystem. Knowledge of gRPC & REST API design and development. Understanding of distributed systems and microservices architecture. Familiarity with containerisation and orchestration tools (e.g. Docker/Podman, Kubernetes) is a plus. Spoken and written English, with a commitment to learn French. Eligibility criteria: You have a professional background in Software Engineer (or a related field) and have either: a Master's degree with 2 to 6 years of post-graduation professional experience; or a PhD with no more than 3 years of post-graduation professional experience. You have never had a CERN fellow or graduate contract before. Additional Information Job closing date: 15.03.2026 at 23:59 CET. Contract duration: 24 months, with a possible extension up to 36 months maximum. Working hours: 40 hours per week Job flexibility: Fully Onsite Target start date: 01-March-2026 Job reference: BE-CSS-DSP-2026-23-GRAP Field of work: Software Engineering and IT Benchmark job: 200020 - Computing Engineer Global Benefits A monthly stipend between 6372-7004 Swiss Francs per month (tax free) depending on your degree. 30 days of paid leave per year plus 2 weeks annual closure. Coverage by CERN’s comprehensive health insurance scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund. Family, child and infant monthly allowances depending on your individual circumstances. A relocation package (installation grant and travel expenses) depending on your individual circumstances. Possibility to extend your contract up to 36 months. On-the-job and formal training including language classes. Overview of CERN - Discover a world where the impossible is made possible! At CERN, the European Organization for Nuclear Research, we are pushing the frontiers of science and technology. Our groundbreaking work brings together not only physicists but also a diverse range of professionals from engineering, technical, scientific, and administrative fields. Together, we foster an environment where innovation and collaboration thrive. Every day, we face exciting new challenges and opportunities to contribute to cutting-edge research that shapes our understanding of the universe. We meet these challenges through the diverse perspectives within our teams, ensuring every contribution is valued and driving our shared sense of inclusion and purpose. Diversity is a core value of CERN since its foundation, and it remains central to our mission and continued success. If you are ready to be part of a dynamic, inclusive community pushing the boundaries of knowledge, CERN is the place where your curiosity and skills can thrive. Be part of our mission to uncover what lies at the heart of the universe! TAKE PART! More information about us, here: careers.cern

Responsibilities

The role involves hands-on research into open-source data processing frameworks and modern deployment solutions, followed by designing, implementing, and optimizing a high-performance, scalable data analysis platform using Java. Responsibilities also include collaborating with specialists to create user-friendly libraries and APIs for deploying traditional and ML algorithms written in Python and Java.