Mid Data Scientist (NLP, Machine Learning, AWS)
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About the role
We are looking for a Mid Data Scientist to join our project, working on cutting-edge AI and data-driven initiatives.
In this role, you will work with structured, unstructured, and streaming data to build advanced analytics and machine learning solutions, with a strong focus on Natural Language Processing and modern AI approaches such as RAG architectures and embeddings.
You will be responsible for transforming complex data into actionable insights, developing predictive models, and collaborating closely with product and business teams to productionise solutions.
This is a hands-on role where you will combine data science, AI, and business understanding to deliver real impact across the organization.
If you enjoy working with modern AI technologies, solving real-world problems, and communicating insights to senior stakeholders — this could be a great fit.
What you’ll do
Design and develop NLP solutions, including text classification, tokenization, and embedding models
Build and optimize RAG (Retrieval-Augmented Generation) pipelines to enhance LLM capabilities
Develop predictive models (regression, classification, neural networks, decision trees)
Collect, clean, and preprocess data from multiple sources (databases, APIs, web scraping, surveys)
Perform exploratory data analysis to uncover patterns, trends, and anomalies
Apply statistical methods (A/B testing, multivariate analysis) to validate hypotheses
Evaluate, fine-tune, and monitor machine learning models in production environments
Create dashboards and visualizations using tools like Tableau, Power BI, or Python
Communicate insights and recommendations to both technical and non-technical stakeholders
Collaborate with product and engineering teams to productionise models and solutions
Ensure data governance, quality, and compliance (e.G. GDPR)
Must Have
2–4 years of experience in Data Science / Machine Learning
Strong experience with Python (Pandas, PyTorch or similar libraries)
Solid understanding of machine learning techniques (regression, classification, clustering)
Hands-on experience in NLP (text processing, embeddings, classification)
Exposure to RAG architectures and LLM-related workflows
Experience with statistical analysis (A/B testing, hypothesis testing, multivariate analysis)
Experience working with SQL and large datasets
Familiarity with cloud environments (AWS preferred)
Experience with data visualization tools (Tableau, Power BI, or Python libraries)
Strong analytical thinking and problem-solving skills
Ability to communicate insights clearly to stakeholders
Fluent Spanish & English (C1)
Nice to Have
Experience with streaming data or real-time analytics
Knowledge of Spark or distributed data processing
Experience deploying ML models into production environments
Familiarity with data governance and privacy frameworks (GDPR)
Experience working in product-driven or digital environments
Exposure to recommendation systems or optimization problems
Experience collaborating in cross-functional teams
Hybrid Model (2 days onsite)
Why join this project?
People first – diverse and inclusive culture in an international environment.
Modern cloud platforms and large-scale, global projects.
High team stability and collaborative culture.
€1200 per year training budget and continuous learning opportunities.
Flexible compensation model.
Private health insurance and benefits package.
Flexible working hours and hybrid model.
Wellhub: fitness, wellness, and mental health support.
Football and paddle tennis teams sponsored by Capitole.
Team buildings, global events, and strong tech communities.
Want to know more about us? Click here and discover all the details.
Curious about our culture? Check out what people are saying about us on Glassdoor.
We know that not every candidate will meet 100% of the requirements. If your profile doesn’t match perfectly but you believe you can add value, we’d still love to hear from you!
Ready for the challenge? Apply now and be part of a global team driving cloud innovation and security.
Empowering People, Unlocking Innovation.
Information Security Notice
* The employee will have access to confidential information related to Capitole and the assigned project.
* Compliance with internal security and information protection policies is mandatory. xhfqzwm
* NDA signature required.