To strengthen its Project Office in La Palma, Spain, the CTAO Central Organisation is seeking a CTAO-North Site Telescope Operator to work on the CTAO-North site, initially, on the commissioning of the telescopes and then to operate the new instrumentation – telescopes and ancillary calibration instruments.

Your key responsibilities:

  • Set-up, operate and monitor the LST-1 telescope and subsystem, computer system and instruments, as needed at night- and day-time, to ensure optimal performance and data collection.
  • Work with the LST and CTAO Central Organisation staff in finalizing the plan for night observations and report at the end of the shift.
  • Understand and document the techniques used to operate the Large-Sized Telescopes (LSTs), which will be part of the future CTAO-North site.
  • As other LSTs and MSTs (Medium-Sized Telescopes) are added to the CTAO-North site in the future, learn and help document their use.
  • Perform simple troubleshooting tasks, detecting and diagnosing any problems found.
  • Prioritize observing targets based on scientific objectives and weather conditions.
  • Assist in the development and implementation of observing strategies and data reduction pipelines.
  • Develop familiarity with instrument configuration and setup to provide back-up for absences of other support staff.
  • Participate in outreach and educational activities to promote public engagement with astronomy and the mission of the observatory.
  • Strictly adhere to safety protocols and procedures to ensure the well-being of personnel and equipment.

Your qualifications and experience:

  • University degree in Astronomy, Physics, Engineering, Technical Physics, or other relevant fields, or equivalent experience.
  • A minimum of three years of experience working in operating telescopes or astronomical instruments.
  • Familiarity with Unix, Linux and common computing software and OS.
  • Familiarity with astronomical data analysis software and techniques.
  • Certification for work at height and altitude is required.
  • Valid driver’s license, clean driving record, and the ability to drive manual transmission, AWD vehicles on mountain roads.
  • Ability to work night shifts, during the weekends and holidays as required.
  • Strong systematic and problem-solving skills.
  • Ability to work effectively both solo and as part of a team.
  • Excellent communication skills, both oral and written, in English, while command of the Spanish language is an advantage.

You will be reporting to: CTAO-North Site Manager

Your duty station: The CTAO-North Site on the Island of La Palma, located in the Canary Islands, Spain. The Telescope operators will be required to work during night shifts, mainly at the Observatorio de Los Roque de Los Muchachos (2200m asl). Daily work may also be carried out at the CTAO office situated at low altitude in La Palma. Occasional travels to the CTAO headquarters in Bologna, Italy, or to the location of in-kind contributor teams may be required.

What we offer: This position is full-time and is funded for the duration of the CTAO construction and operation project.

Apply here:

By applying you acknowledge that the CTAO Central Organisation might contact referees at any stage of the process without prior notice, unless specifically instructed otherwise, and authorize the processing of their personal data as stated in CTAO Privacy policy on the personal data processing of candidate.

Deadline for applications is July 31, 2024.

Further information about the position can be obtained from Dr. Paolo Calisse, For more information on the CTAO, visit

Applications are accepted without distinction on any grounds of gender, race, colour, ethnic or social origin, genetic features, language, religion or belief, political or any other opinion, membership of a national minority, gender identity, property, birth, disability, age or sexual orientation.

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CTAO-North Site Telescope Operator - CTAO