CGG

Geoscientist Researcher - Internship (6 months)

France · On-site · Full time

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About the role

Description from the employer’s posting. Check the employer’s page for the current version.

EmployerCGG
LocationFrance
Work styleOn-site
Employment typeFull time
Employer posted5 Oct 2026

Viridien (www.viridiengroup.com) is an advanced technology, digital and Earth data company that pushes the boundaries of science for a more prosperous and sustainable future. With our ingenuity, drive and deep curiosity we discover new insights, innovations, and solutions that efficiently and responsibly resolve complex natural resource, digital, energy transition and infrastructure challenges.

Job Summary

Viridien's Reservoir Research department works on better characterizing the subsurface for resource recovery, a well-established discipline where new technologies are now key to speeding up the integration of seismic information into reservoir models. This requires precise 3D modelling, advanced seismic imaging and well data to accurately quantify available resources.

Several seismic inversion methodologies can extract quantitative elastic attributes that provide reliable input for geological modelling. Depending on the seismic data available, Viridien runs various inversion algorithms: Elastic inversion, PP-PS inversion, Time-lapse (4D) inversion or Azimuthal inversion. Each with its own input data, parameters and QC to optimize within a user-friendly interface.

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About the Team

During your internship, you will be working in the subsurface imaging R&D team, in close collaboration with our software and production departments, to meet their demands and industry trends.

Our R&D team consists of passionate scientists with very diverse backgrounds including geology, theoretical physics, engineering, as well as seismic reservoir characterization. We are all committed to support the Reservoir and Imaging teams on the delivery of the projects and to develop new technologies that will strengthen Viridien’s technical leadership on our competitive market.

Key Responsibilities

Work closely with seismic inversion researchers to adapt inversion schemes to the defined elastic domain
Participate in the development and implementation of a prototype to be able to handle all the requirements of each inversion.
Implement and test the methodology on real data to validate its application, to understand the impact of the different parameters as well as the limitations

Qualifications

Required

Last year of Engineer School or Masters degree with strong skills in Mathematics, Physics and Numerical computation
Strong background in Mathematics, Physics and Numerical Computation
Strong analytical approach to problem solving
Collaborating with external R&D partners
Strong knowledge of C++
Curiosity, interest for research and teamwork

Preferred

Theoretical bases of inversion process
Knowledge of geophysics is not essential but will be useful

Benefits

An international culture in which the well-being and development of our employees are a top priority·
Access to company restaurant with subsidized price
Access to benefits from Company works council·
Reimbursement of 50% of public transportation card in Ile-de-France region
Attractive sustainable mobility incentive
Love sports? Access to equipped Gym with reasonable price
Confidential employee assistance program to support our staff covering counselling, wellbeing, legal & financial issues

Our Hiring Process

At Viridien, we are committed to delivering a respectful, inclusive, and transparent recruitment experience.

Due to the high volume of applications we receive, we may not be able to provide individual feedback to every applicant. Only candidates whose qualifications closely match the role criteria will be contacted for an interview. We do, however, aim to share personalized feedback with those who progress to the first round of interviews and beyond.

We are also dedicated to ensuring that our hiring process accessible to all. If you require any reasonable adjustments to fully participate in the application or interview stages, please don’t hesitate to contact your recruiter directly.

We see things differently. Diversity fuels our innovation, we value the unique ways in which we differ, and we are committed to equal employment opportunities for all professionals.

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