Clarity AI is a general tech company founded in 2017 with a unique mission: bringing societal impact to markets. We leverage AI and machine learning technologies to provide top international investors, governments, companies, and consumers with the right data, methodologies, and tools to make more informed decisions. Together, we have established Clarity AI as a leading sustainability tech AI company backed by investors and strategic partners such as BlackRock, SoftBank, and Deutsche Börse. We are looking for a Senior Data Scientist with a strong scientific mindset and relevant experience to help us bring societal impacts to market and make a difference. You would be part of a team of +20 international Data Scientists coming from top Academic Institutions and Tech Companies with a shared passion for data science and a growing mindset.
Improving the performance and lifecycle of production ML systems, ensuring scalability and rapid issue resolution.
Collaboratively designing and deploying end‐to‐end ML models, LLMs,



and agent systems that deliver transparent and accurate sustainability data to customers.
The role is based in Madrid (Remote / Hybrid).
3+ years of experience working on Data Science products.
Strong command of the Python data science ecosystem (Pandas, Matplotlib, Scikit‐Learn, etc.).
Proficiency working in collaborative codebases and scalable machine learning production environments.
Solid software engineering fundamentals (testing, code review, design, performance).
Up‐to‐date experience with LLMs, agentic workflows, prompt engineering, RAG, vector databases, evaluation, and safety guardrails.
High motivation, independence, and a deep passion for making an impact through data science.
Excellent oral and written English communication skills (minimum C1 level proficiency).
MSc/PhD degree in CS/EE/STEM or related field.
Experience with fintech/data products or sustainability/ESG domains.
Flexibility in ways of working both in terms of your schedule as well

📌 Data Science Data Science Senior Data Scientist (Madrid)
🏢 Clarity.Ai
📍 Madrid