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

CERN

Geneva, GENEVA, ch·1h ago

Entry LevelFull-timePythonJavaSpringKubernetesDockerREST APIMicroservicesCI/CDAPIML

Salary Range

$44,880 - $60,720 /year

Estimated

This salary is estimated based on similar roles. The actual salary may vary.

About the Role

We are looking for a Big Data Processing Engineer to join our team and work on a 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.

Key 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.

Requirements

✓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.
✓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.
✓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.