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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # AI / Machine Learning Engineer - **Company:** Mantle8 - **Location:** Grenoble, France - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Geographic Information Systems, Artificial Intelligence, Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, Artificial Neural Networks, Databases, Data Infrastructure, PostgreSQL, Machine Learning, Network Architecture, Open Source Technology, Tensorflow, Software Deployment, Web Application Frameworks, Pytorch, Retrieval-Augmented Generation, Large Language Models, Apache Spark, Model Validation, Amazon Relational Database Service, Scikit Learn, Machine Learning Operations, Databricks - **Published:** July 24, 2026 - **Apply:** https://fr.indeed.com/viewjob?jk=f22f4d26f0edb0a2 ## About the Role * Minimum 5 years of professional experience applying AI/ML workflows * Hands-on fluency with the modern ML stack (pipelines, training infrastructure, model evaluation, MLOps) * Experience with AWS (S3, EC2, RDS) and production databases, ideally PostgreSQL * Proven ability to work with unstructured/non-tabular data (text, PDFs, images, geospatial data) * Fluent English (spoken and written), the team operates in English daily * Master's in AI, Machine Learning, Data Science, or related field * Strong grasp of neural networks and modern frameworks (PyTorch, TensorFlow, Scikit-learn, JAX, Spark, Ray) * Demonstrated portfolio of AI/ML use cases (open-source, internships, theses, or production deployments) * Strong analytical mindset, comfortable turning ambiguous problems into clean solutions * Comfortable in a fast-paced, lean team, owning models end-to-end Highly valued: * Interest in the energy transition and clean-tech * Physics-informed neural networks or simulation surrogates * RAG (retrieval augmented generation) experience in production * Exposure to subsurface, geoscience, or geophysics use cases * Experience building agentic AI systems (LLM agents, tool use) * Experience with Databricks in production * Willingness to relocate to the Grenoble area, French Alps * Startup/scale-up experience; familiarity with French HPC ecosystems ## Description As AI / Machine Learning Engineer, you'll join Mantle8's Data Team, reporting to the Data Lead, applying AI/ML to accelerate workflows company-wide - from technical R&D to portfolio decisions. You'll work closely with geoscience, exploration, and technology teams to improve Simul8 (our hydrogen digital twin), HOREX (our 4D subsurface imaging tech), portfolio decisions, and our data infrastructure. The role requires deep AI/ML fluency, curiosity to spot high-leverage use cases in subsurface/clean-tech, and an entrepreneurial mindset - comfortable owning models end-to-end in a lean team. What you'll be doing : * Improve Simul8 and HOREX with AI surrogates, neural-network architectures, and production-grade pipelines. * Bring AI into portfolio management: play assessment, prospect ranking, Go/No-Go decisions, decision-grade insights for leadership. * Build AI agents that autonomously explore Mantle8's datasets/dashboards. * Design, train, and industrialise neural-network models across modalities (geophysical signals, geological models, tabular data, text), with rigorous evaluation on subsurface/physics-constrained problems. * Prototype new AI use cases across teams; upskill the team on AI tools and data workflows. What we offer : * Corporate welfare plan & supplementary health insurance * Indefinite contract with full French employment protections * A meaningful role building a new clean, affordable, sovereign energy source * Significant impact in a fast-growing clean-tech start-up, in the French Alps ## Related Videos - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [WeAreDevelopers LIVE - CSS is DOOMed](https://www.wearedevelopers.com/videos/1838-wearedevelopers-live-css-is-doomed) - [Photonic Computing: Programming a New Class of AI Accelerators (incl. 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