AI Research Scientist (Paris)

Story Terrace Inc.; Paris; On-site; EUR 70,000 - 110,000; Full time

Job summary

Lexsi Labs in France is seeking a research scientist to push forward AI explainability, safety, and alignment at scale. You will tackle large-scale industry problems and collaborate with ML researchers and engineers in a startup‑like environment.

The role requires a strong academic background in ML/DL/RL, a Master or PhD in CS or Mathematics, publications or open‑source contributions, and hands‑on experience with TensorFlow and PyTorch; cloud/on‑prem deployment, and ML explainability methods.

Qualifications

• Solid academic background in ML/DL/RL concepts.
• Master or PhD in CS or Mathematics is required.
• Should have published peer‑reviewed papers or contributed to opensource tools.
• Hands‑on experience with DL frameworks like TensorFlow and PyTorch.
• Experience with diverse data types (text, tabular, images).
• Cloud and/or on‑prem deployment experience.
• Strong fundamentals in MLOps and productionising ML models.
• Experience with ML explainability methods (LRP, SHAP, LIME, IG, CEM).
• 2+ years of hands‑on DL/ML experience.
• Hands‑on experience with Transformer models, GANs, DL.

Responsibilities

• Work on AI explainability, safety, and alignment.
• Flexible in specialization areas within ML/DL.
• Create new techniques around ML Observability & Alignment.
• Collaborate with MLEs and SDE to roll out features and ensure quality.
• Create and maintain technical and product documentation.
• Publish papers in open forums like arxiv and present in industry forums like ICLR NeurIPS.

Skills

TensorFlow

PyTorch

ML/DL fundamentals

Transformer models

GANs

MLOps basics

Explainability methods

Education

Master's or PhD in CS or Mathematics

Job description

Lexsi Labs is one of the leading frontier labs focusing on building aligned, interpretable and safe Superintelligence. Most of the work involves on creating new methodologies for efficient alignment, interpretability lead-strategies and tabular foundational model research. Our mission is to create AI tools that empower researchers, engineers, and organizations to unlock AI's full potential while maintaining transparency and safety.

Our team thrives on a shared passion for cutting-edge innovation, collaboration, and a relentless drive for excellence. At Lexsi.ai, everyone contributes hands‑on to our mission in a flat organizational structure that values curiosity, initiative, and exceptional performance.

As a research scientist at Lexsi.ai, you will be uniquely positioned in our team to work on very large-scale industry problems and push forward the frontiers of AI technologies. You will become a part of the unique atmosphere where startup culture meets research innovation, with key outcomes of speed and reliability.

Responsibilities

• You’ll work on advanced problems related to AI explainability, AI safety, and AI alignment.
• You’ll have flexibility in picking up the specialization areas within ML/DL and problem types that address the above challenges.
• Create new techniques around ML Observability & Alignment.
• Collaborate with MLEs and SDE to roll out the features and manage their quality until they are fully stable.
• Create and maintain technical and product documentation.
• Publish papers in open forums like arxiv and present in industry forums like ICLR NeurIPS etc.

Qualifications

• Has a solid academic background in concepts of machine learning or deep learning or reinforcement learning.
• Master or Ph.D in key engineering topics like computer science or Mathematics is required
• Should have published peer-reviewed papers or contributed to opensource tools
• Hands‑on experience in working with deep learning frameworks like Tensorflow, Pytorch etc
• Enjoys working on various DL problems that involve using different types of training data sets - textual, tabular, categorical, images etc
• Comfortable deploying code in cloud environments/on‑premise environments.
• Good fundamentals in MLOps and productionising ML models.
• Prior experience on working on ML explainability methods - LRP, SHAPE, LIME, IG, CEM etc.
• 2+ years of hands‑on experience in Deep Learning or Machine Learning.
• Hands‑on experience in implementing techniques like Transformer models, GANs, Deep Learning, etc.