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Thales

Global defense and aerospace electronics

Research Engineer Intern - Towards a multimodal optical / SAR / IR foundation model for Earth observation

Computer Vision +1Confirmed live in the last 24 hours
InternshipCannes, FranceNo salary listedIn-person

About the Job

Requirements

  • A BAC+5-level educational background focused on deep learning, computer vision, mathematics, or physics.
  • Seeking a six-month internship.
  • English proficiency sufficient to read, understand, communicate, and write using technical terminology.
  • Rigor, analytical and synthesis skills, initiative, interpersonal skills, and autonomy.

Responsibilities

  • Establish the state of the art in multimodal self-supervised pretraining (optical, MWIR/LWIR infrared, and SAR; contrastive or masking approaches) and reproduce two or three reference methods for comparison.
  • Assemble and align multimodal image pairs, pretrain a model using PyTorch or JAX on the team's unannotated image dataset, and compare it with public foundation models to measure the contribution of the team's data.
  • Study whether annotations from one modality can be used for another through pseudo-labels and active learning, and plot object-detection performance against annotation volume compared with the team's existing single-channel networks.
  • Evaluate model robustness and calibration when a modality is degraded or missing, and propose mitigation strategies for operational use and possible onboard implementation.
  • Use image-formation physics—including SAR viewing geometry and speckle, infrared thermal emission, and optical reflection—as inductive biases, for example by integrating a differentiable physical model into the architecture or loss function.
  • Document results through reproducible code, a report, and a publication.

About the Company

Thales

Global defense and aerospace electronics

Thales designs and delivers critical technology for aerospace, defense, and digital security. Its products include electronics, software, and data-security systems that power air travel, payments, and modern military platforms, by integrating hardware and software to build systems such as avionics, radar, cybersecurity, and secure communications that collect sensor data and protect networks. It stands out through deep industrial experience, end-to-end solutions across defense, aerospace, and cybersecurity, and a focus on AI and quantum tech, aided by strategic acquisitions and partial state ownership. Its goal is to provide reliable, secure, and connected technologies that support national security, public safety, and everyday life by solving complex security and connectivity challenges.

Company size
10,001+
Company stage
IPO
Headquarters
Meudon, France
Founded
1893

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