.Two Postdoctoral Contracts Exoplanets and Astrobiology 2023 (PS-2023-076) The IAC (Tenerife) announces TWO postdoctoral contracts to work on the project linked to the line of research "Exoplanets and Astrobiology: preparatory science for the ARIEL mission". The contracts are funded by the project "Science and Technology for the ARIEL Mission: IAC Contribution" (PID2021-125627OB-C32), led by Prof. Enric Palle.Tasks: The "Exoplanets and Astrobiology" group at IAC participates in the Guaranteed Time Observations (GTO) programs of the MUSCAT2 collaboration, the CHEOPS satellite and the CARMENES and ESPRESSO spectrographs. We have a leading role in the development of the ARIEL and PLATO space missions, as well as the ANDES spectrograph for the ELT. Finally, we are also involved in the follow-up of the TESS mission, and have a lively research team in the area of planetary atmospheres characterization.The successful candidate will pursue research in the following fields:Characterization of exoplanet atmospheres by means of high-resolution spectroscopy using spectrographs such as HARPS-N, GIANO, CARMENES and/or ESPRESSO, or by means of low resolution spectrographs using 8-10 m class telescopes.Ground-based follow-up of the TESS mission, including photometric and radial velocity measurements.Analysis and observations of rocky planets with the JWST, and the use of molecular mapping for the analysis of atmospheres of giant planets with the JWST.Biomarkers and habitability of Earth-like planets.Requirements: The candidates must have an excellent research record, commensurate with the duration of their research career. They must be in possession of a Ph.D. degree in Astrophysics or Physics by the application deadline. Candidates who have not received their doctorate before the deadline will not be admitted to the selection process. Applicants who prepared their thesis at the IAC have to present accreditations of complementary training at other research centers (this period should be either 1 continuous year or 18 accumulated months) by the application deadline.Selection process: The selection process consists of two phases: merit assessment and interview.1. First phase: merit assessment. The Selection Panel will verify and rate the merits documented by the applicants. The maximum score that can be awarded in this phase is 80 points.a) CV (maximum score: 60 points) Main criteria include scientific contributions, appointments at prestigious institutions, conference contributions, and other indicators of research activity.b) Adequacy to the objectives of the contract (maximum score 20 points) includes experience in transmission spectroscopy studies, data reduction, and programming skills.2) Second phase: interview. (maximum score 20 points) Candidates who have obtained at least 50 points in the first phase will be invited to an interview