Data Scientist
ThetaRay
Posted: November 27, 2025
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Job Description
Madrid, Spain
Description
About ThetaRay:
ThetaRay is a trailblazer in AI-powered Anti-Money Laundering (AML) solutions, offering cutting-edge technology to fintechs, banks, and regulatory bodies worldwide. Our mission is to enhance trust in financial transactions, ensuring compliant and innovative business growth.
Our technology empowers customers to expand into new markets and introduce groundbreaking products.
Thetaray is a culture-driven company. Our values are at the heart of our success. By joining us, you'll have the opportunity to embody these values and inspire others through your actions.
ThetaRay is looking for a Data Scientist for customer-facing projects that combine data science with deep knowledge and understanding of machine learning and big data technologies to create solutions for customers’ challenges and needs, defining and developing appropriate technical and business solutions. The Data Scientist will work closely with ThetaRay’s Product Management, Algorithm, Engineering, and Customer Success teams and lead external partners to successful implementations of the ThetaRay platform and solutions.
Key Responsibilities
Deliver successful deployment and Pilots
Manage and design the Customer-specific technical solution throughout the project life cycle
Technical leadership of Data Science and engineering aspects and team members including partners
Work on various data sources and apply sophisticated feature engineering capabilities
Bring and use business knowledge
Extract insights and actionable recommendations from large volumes of data and Investigate anomalies in Big Data
Build and manage technical relationships with customers and partners
Provide product requirements input to the Product Management team
Train the customers on the system – system usage and monitoring aspects
Travel to customer locations both domestically and abroad
Requirements
2+ years of experience as a data scientist/data engineer/big-data developer
BSc or equivalent in Mathematics, Statistics, Computer Science, Economics, or another related field
Must have proven professional experience in data analytics for financial services with strong data mining and forensic skills
Experience working with customers - an advantage
Must have Hands-on experience and knowledge of scripting languages: Python/PySpark as well as DS workflow management tools including MLflow, Airflow, etc.
Experience in NLP or Graph Algorithms - an advantage
Working experience with Linux OS - an advantage
Fluent English - written and spoken
Core Competencies
Able to solve tech problems for customers; improvise; cope with unexpected challenges
Able to drive relevant internal functions to deliver/solve a problem for customers/partners
A motivated, self-starter who can demonstrate high analytical and technical skills
Ability to design creative solutions for complex requirements
Ability to learn and lead projects independently, and to work with minimal supervision with customers (tech & business)
Strong interpersonal relationship building
Ability to execute multiple projects and drive key business results under tight deadlines