Senior Data Scientist

Full-time, onsite position in Stuttgart, Germany. Active TS/SCI clearance with eligibility to obtain a CI Polygraph required. U.S. citizenship is mandatory.

About the role

Castalia Systems is seeking a Senior Data Scientist to leverage advanced data science, Python, AI/ML, statistical analysis, and Activity-Based Intelligence (ABI) tools and tradecraft. This role involves analyzing, integrating, and visualizing complex mission data to develop dashboards, perform data quality and preprocessing, and apply machine learning techniques to support actionable intelligence and mission-focused decision-making.

Responsibilities

• Develop and maintain Python-based data processing and analytical workflows to support mission-driven geospatial and intelligence analysis.
• Apply statistical analysis, hypothesis testing, and machine learning techniques to identify patterns, trends, anomalies, and relationships within complex datasets.
• Design and implement automated methodologies to improve the efficiency, repeatability, and scalability of data analysis processes.
• Integrate and analyze structured and unstructured data from multiple sources to support intelligence production and decision-making.
• Develop and refine AI/ML models used for classification, pattern recognition, predictive analysis, and other advanced analytical use cases.
• Create interactive dashboards, visualizations, and analytical products using Tableau, Power BI, or similar tools to communicate findings to mission stakeholders.
• Conduct data validation, quality assurance, and performance assessments to ensure analytical outputs are accurate, reliable, and mission relevant.
• Utilize Activity-Based Intelligence (ABI) tools and tradecraft to identify significant activities, relationships, behaviors, and patterns across datasets.
• Collaborate with analysts, data engineers, and mission stakeholders to translate intelligence requirements into data science methodologies and analytical solutions.
• Document data science methodologies, model performance, analytical assumptions, and results to ensure reproducibility and effective communication of findings.

Requirements

• Bachelor’s degree in Data Science/Engineering, IT, Computer Science, Information Science, or a related field from an accredited institution, or 7 years of experience conducting data science support (with at least a portion within the last 2 years), or 11 years of specific experience without a degree.
• Experience in data cleaning, basic analysis, and preparation for visualization.
• Proficiency in developing dashboards and performing routine data quality checks.
• Skills in data preprocessing, data integration, quality checks and assurance, and complex data visualization creation.
• Experience developing dashboards with tools like Tableau or Power BI, and applying AI/ML models for unstructured data analysis.

Preferred Qualifications

• Intelligence Community experience.

Work Environment

• Normal office environment in Stuttgart, Germany.
• No shift work.
• Less than 10% travel.

Benefits

• Medical, dental, and vision coverage.
• 401k matching.
• Generous PTO and paid holidays.
• Professional training opportunities.
• Pet insurance.

Pay

Salary is determined by factors including location, position knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. Eligible employees may receive a Cost of Living Allowance (COLA), relocation assistance, and per diem, with support available for both individuals and families relocating to Germany.