AI Engineer

About the company

The transition to a sustainable future requires discovering new mineral resources to power clean technologies and renewable energy solutions. From lithium for electric vehicle batteries, to copper for wind turbines, and rare earth elements for electronics — these minerals are the building blocks of our energy transition.

Lithosquare radically speeds up mineral exploration by combining foundational AI, geological expertise, and real-world data — to reduce uncertainty, prioritize the right targets, reduce costs and accelerate discovery.

Based in Paris, Lithosquare gathered an exceptional team of geologists, scientists, AI engineers, and data specialists to work as one — from field sampling to model optimization — and push the boundaries of what’s possible.

About the job

As an AI Engineer, you will play a central role in the evolution of our core product and act as the architect of the intelligence that powers our Geology OS. You won’t just be using models: you will design, fine-tune, and deploy machine learning systems that interpret complex geophysical and geochemical data, turning massive, noisy datasets into high-confidence exploration targets.

Your focus will be on building an agentic ecosystem - orchestrating intelligent workflows and tool-augmented systems that can reason through complex geological challenges. To power these agents, you will fine-tune foundational models on our proprietary datasets, ensuring they possess the domain-specific intuition required for high-accuracy discovery. By combining the reasoning capabilities of AI agents with the precision of custom-tuned models, you will transform raw data into a scalable, autonomous engine for mineral exploration.

The role is based in Paris with a flexible remote working policy.

What you’ll do

• Design, orchestrate, and optimize AI agents and agentic workflows that solve complex challenges in mineral exploration and geosciences.

• Collaborate closely with geoscientists, software engineers, and other team members to integrate AI solutions into our platform.

• Leverage state-of-the-art AI models (e.g., foundation models, fine-tuned & multimodal models) as components within broader tool-using agent frameworks.

• Lead the fine-tuning of LLMs and vision transformers to adapt general-purpose models to the niche requirements of geology and mineralogy.

• Stay up-to-date with the latest advancements in AI research and ensure their practical application within the company’s workflows.

• Continuously monitor and refine internal AI solutions, ensuring robustness, transparency and scalability.

• Contribute to the design and development of the overall AI architecture of our platform.

• Actively participate in brainstorming sessions to identify creative AI-driven solutions to complex business problems.

What we’re looking for

• 5+ years of experience applying AI and Machine Learning in production environments

• Strong working knowledge of state-of-the-art AI models and methodologies, including deep learning, generative models, fine-tuning and reinforcement learning.

• Proficiency in Python, with a strong emphasis on clean, maintainable code and best practices in software engineering.

• Experience working with modern LLM libraries.

• Proven ability to work with large-scale datasets and implement data preprocessing pipelines.

• A solid understanding of algorithm development and optimization techniques.

• Strong problem-solving skills and the ability to translate complex challenges into elegant AI solutions.

• Excellent communication and collaboration skills to work effectively in a multidisciplinary team environment.

• Passion for leveraging AI to make a positive impact.

• Nice-to-have: knowledge of geospatial data processing and analysis, experience in geosciences-related industries or earth exploration fields.

Perks & Benefits

• Offices located in the heart of Paris

• Strong culture of ownership & entrepreneurship, with clear growth paths as the company expand

• Opportunity to significantly contribute to energy transition

• Collaborative work environment with world-class experts in geology, AI, and data science

• Flexible work arrangements enabling work-life balance

• Competitive salary package

• ️ Meal vouchers and premium health insurance coverage (Alan)

Join Lithosquare and become part of a passionate team driving innovation at the intersection of AI and Earth exploration. Let’s make a tangible difference together!