Your responsibilities

Join our team as a CRAB Operator! You'll be instrumental in the development and operation of CRAB, a tool used by CMS physicists for data analysis on the distributed computing Grid. As part of our dynamic team, you'll receive training, collaborate with experts, and play a key role in maintaining and improving CRAB's codebase.

Your responsibilities will span code maintenance, defect resolution, code cleanup, and creating validated releases on GitHub. On the operational side, you'll deploy and ensure the smooth operation of services, troubleshooting and collaborating on problem-solving. The role also involves leveraging CERN's data analytics cluster for monitoring dashboards and exploring analytics using tools like Elastic Search, Kibana, Grafana, and Spark. Gain expertise in CRAB, its internal architecture, and HTCondor infrastructure while contributing to the largest worldwide condor pool. Your skills will be vital in high-throughput job execution across Grid, Cloud, and other resources.

Join us for a challenging and rewarding opportunity!

More information here: https://cms.cern.ch/

Your profile

Skills and/or knowledge

• Scientific data management and mass storage systems
• Grid infrastructure and Grid technologies
• Testing and troubleshooting distributed systems
• Monitoring of distributed systems
• User support or communication with large groups of internationally distributed colleagues
• Knowledge of Python
• Knowledge of DevOps tools such as Kubernetes, Docker, Git, Puppet Knowledge of Linux and bash scripting
• Experience of monitoring tools like Prometheus, Grafana and Opensearch
• Usage of distributed computing infrastructures
• Experience with SQL and RESTful technologies is a plus
• Experience with HTCondor is a plus
• Experience with CMS analysis workflows and/or CMS computing tools is a plus
• Experience with Continuous Integration tools is a plus
• Fluent in English, the ability to work in French would be an advantage.

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State.

• You have a maximum of two years of professional experience since graduation in Computer Science or Physics (or a related field) by the application deadline.

• Your highest educational qualification is either a Bachelor's or Master's degree.

• You have never had a CERN fellow or graduate contract before

• Applicants without University degree are not eligible.

•  Applicants with a PhD are not eligible.

   

Job closing date: 19.01.2024 at 23:59 CET.

Job reference: EP-CMG-CO-2023-48-GRAE

Contract duration: 24 months, with a possible extension up to 36 months maximum.

Target start date: 01-June-2024