Research engineer: satellite altimetry for climate

Research engineer


Ramonville-Saint-Agne, France

#climate #satellite #monitoring

CLS is looking for a research engineer ready to work, operate & maintain our climate-oriented processing chains and software.

Host organisation

CLS, a subsidiary of the French Space Agency CNES and of CNP, is a worldwide company and pioneer provider of monitoring and surveillance solutions for the Earth since 1986. Its mission is to deploy innovative space-based solutions to understand and protect our planet, and to manage its resources sustainably. CLS employs 900 people, at its headquarters in Toulouse (France) and in its 34 other sites around the world.

The company works in 5 strategic areas of activity: sustainable fisheries management, environmental monitoring, maritime surveillance, mobility and energies & infrastructures monitoring.

The Ocean Mission Performance (aka Cal/Val) team is responsible for the evaluation of the overall performance of the observing system over ocean, and is also responsible for the monitoring of the long-term stability of the observing system and the calculation and validation of the global mean sea level record.

Position description

We are looking for a new team member to contribute to our climate-oriented activities :

  • Operate & maintain our climate-oriented processing chains and software,
  • Lead technical and scientific studies to validate the long-term stability of the altimeter record, including comparisons to in-situ measurements,
  • Contribute to the evolution of the mathematical framework used for the expression of errors and uncertainties affecting climate records,
  • Investigate the potential of novel methods to validate the stability of the GMSL record,
  • Foster communication within the local climate science and satellite radar altimetry experts,
  • Communicate results to the wider climate science & altimetry audience through peer-reviewed papers and conferences.

Profile and skills

  • PhD in climate science, oceanography or remote sensing or a demonstrated experience in one of those fields and a strong knowledge of signal processing theory.
  • A previous experience with Earth Observation data and/or in-situ data is a plus.

Professional skills

  • Python programming skills, especially a working knowledge of numpy, scipy and xarray packages.
  • Familiar with some metrology notions such as error and uncertainty.
  • Good communications skills (both oral & written)
  • Team player, with the ability and desire to learn & explore new things, capable of rigorous analysis and with an attention to detail.

Contract type

Permanent contract


Ramonville-Saint-Agne, France

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