Network Administrator in ATLAS DAQ

Job Posting Organization:
CERN, the European Organization for Nuclear Research, was established in 1954 and is one of the world's largest and most respected centers for scientific research. With over 2,500 employees and thousands of scientists from around the globe, CERN operates in 23 member states and collaborates with numerous other countries. The organization is dedicated to pushing the boundaries of knowledge in particle physics and technology, fostering an environment of innovation and collaboration among a diverse range of professionals.

Job Overview:
The position of Network Administrator in the ATLAS Data Acquisition (DAQ) team at CERN involves contributing to the modernization of one of the world's most advanced scientific computing networks. The successful candidate will work closely with experienced network engineers, gaining hands-on experience in the deployment, testing, operation, and monitoring of a high-availability, multi-terabit-per-second network that supports the ATLAS experiment. This role also includes the development of future-proof monitoring and alerting solutions in collaboration with experts across CERN and the LHC experiments. The position is fully onsite and requires a commitment to work in a dynamic and challenging environment, where the candidate will be expected to participate actively in various technical tasks and collaborate with a diverse team of professionals.

Duties and Responsibilities:
The duties and responsibilities of the Network Administrator include participating in the installation, commissioning, testing, and operation of network infrastructure that supports the ATLAS Data Acquisition (DAQ) system. The candidate will deploy and maintain a production-ready network monitoring and alerting solution for critical DAQ services and equipment. Collaboration with experts from other LHC experiments is essential to identify common requirements and contribute to the development of scalable, future-proof monitoring solutions. Additionally, the role involves supporting the operation and upkeep of the ATLAS TDAQ laboratory, including infrastructure, equipment, and resource management activities. The candidate will also contribute to the maintenance and evolution of the ATLAS DAQ hardware infrastructure, which includes server deployment, hardware interventions, and providing related technical support.

Required Qualifications:
Candidates must have basic experience as a Sysadmin or Netadmin, along with hands-on experience with server and/or switch installations in a professional environment. A basic knowledge of the TCP/IP stack and Ethernet networks is required, as well as basic programming skills in Python and Bash. General knowledge of Linux systems is also necessary. The ability to work effectively in teams is crucial, and candidates must be proficient in spoken and written English, with a commitment to learn French.

Educational Background:
The educational background required for this position includes a general secondary education diploma. Candidates must be nationals of a CERN Member or Associate Member State and should have a maximum of two years of professional experience since graduation in Computing Infrastructures or a related field. It is important to note that applicants with a Bachelor's, Master's, or PhD degree are not eligible for this position.

Experience:
The level of experience needed for this position is a maximum of two years of professional experience since graduation. This experience should be in fields related to Computing Infrastructures or similar areas, ensuring that the candidate is well-prepared to handle the responsibilities of the role effectively.

Languages:
The mandatory language for this position is English, which must be spoken and written proficiently. Additionally, candidates should have a commitment to learn French, which is considered a good to have language for this role.

Additional Notes:
The contract duration for this position is 24 months, with the possibility of an extension up to a maximum of 36 months. The working hours are set at 40 hours per week, and the position is fully onsite. The target start date for this role is January 1, 202

• The position may involve work in radiation areas, interventions in underground installations, and stand-by duty as required by the needs of the organization. Candidates should also be prepared to work during nights, Sundays, and official holidays when necessary. The job reference for this position is EP-ATL-DAQ-2026-228-GRAE, and it falls under the field of Information Technologies with a benchmark job classification of 300030 - Computing Technician. The compensation includes a monthly stipend of 4687 Swiss Francs (tax-free), 30 days of paid leave per year plus 2 weeks of annual closure, comprehensive health insurance coverage, family allowances, a relocation package, and opportunities for on-the-job and formal training, including language classes.