Employment Opportunities

The Cherenkov Telescope Array Observatory (CTAO) will be the first and world’s largest and most sensitive ground-based gamma-ray observatory covering the full sky. It will detect high-energy radiation from the Universe with unprecedented accuracy and better sensitivity than any current instrument, providing novel insights into the most extreme events in the Universe. The CTAO gGmbH is the interim legal entity in the preparation of the design and implementation of the CTAO, until the final legal entity, a European Research Infrastructure Consortium (CTAO ERIC), is achieved. The CTAO ERIC will be responsible for the construction and operation of the Observatory.


CTAO has four locations: the Headquarters currently in Heidelberg (Germany) moving to Bologna (Italy), the Science Data Management Centre (SDMC) in Zeuthen (Germany), and the two array sites at the two hemispheres. CTAO’s Northern Array Site is located on the existing site of the Instituto de Astrofísica de Canarias’ (IAC’s) Observatorio del Roque de los Muchachos on the island of La Palma (Spain). CTAO’s Southern Array Site is less than 10 km southeast of the European Southern Observatory’s (ESO’s) existing Paranal Observatory in the Atacama Desert (Chile). Three classes of telescopes spread over a large area will be installed: Large-Sized Telescopes (LST, 23m diameter), Medium-Sized Telescopes (MST, 12m diameter), and Small-Sized Telescopes (SST, 4m diameter).


CTAO gGmbH is an equal opportunity employer. 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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In addition to the CTAO gGmbH employment opportunities, this page features the open CTAO Secondment Positions and some of the available positions within the Cherenkov Telescope Array Consortium (CTAC) institutes.

CTAO gGmbH Positions

CTAO Secondment Positions

CTA Consortium Positions

The UMCE Physics Department is searching for candidates who may propose research projects to the Chilean funding agency FONDECYT, sponsored by UMCE professors. Among different fields, there are available positions for very high-energy astrophysics (CTAC and SWGO) sponsored by Andreas Reisenegger ( Chile hosts many of the largest telescopes in the world, 10% of whose observing time is reserved to local scientists. It will also host several next-generation telescopes and observatories, including the Vera C. Rubin Observatory (LSST), Giant Magellan Telescope (GMT), European Extremely Large Telescope (E-ELT), and Cherenkov Telescope Array Observatory (CTAO).


FONDECYT has an open call with deadline 28 April 2022 for 2- or 3-year postdoctoral grants starting on 15 April 2023 and covering salary, research expenses, and a relocation allowance. Candidates should have obtained their PhD between 1 January 2019 and 31 August 2022, with extensions to earlier dates for female applicants who have had children since then.


We urge candidates to contact ASAP the professor closest to their interests, sending their CV (including PhD graduation date and a list of publications) and a brief description of research interests.


All details: Link

Job applications and further inquiries: Prof. Andreas Reisenegger (