Senior Data Scientist

castaliasystems; Arlington (VA); On-site; USD 130,000 - 170,000; Full time

Benefits offered by this job

Medical, dental, and vision coverage

401k matching

Generous PTO

Paid holidays

Professional training opportunities

Pet insurance

Job summary

Castalia Systems is seeking a Senior Data Scientist to leverage Python, AI/ML, and advanced analytics to analyze mission data and support decision-making. The role emphasizes developing dashboards, data preprocessing, quality checks, and actionable intelligence across structured and unstructured data.

You'll collaborate with analysts and engineers to translate requirements into scalable data science solutions, employing ABI tools and visualization platforms like Tableau or Power BI to

Qualifications

• Bachelor's degree in a related field or 7+ years of relevant data science experience.
• 11 years of experience without a degree may be considered.
• Experience in data cleaning, preprocessing, and visualization preparation.
• Experience developing dashboards and performing data quality checks.
• Experience with AI/ML models for unstructured data analysis.

Responsibilities

• Develop Python-based data processing and analytical workflows for mission data.
• Apply statistical analysis and ML to identify patterns and trends in complex datasets.
• Design automated methods to improve efficiency and scalability of analyses.
• Integrate structured and unstructured data from multiple sources for intelligence production.
• Develop AI/ML models for classification, pattern recognition, and predictive analysis.
• Create interactive dashboards and visualizations using Tableau/Power BI for stakeholders.
• Perform data validation and quality assurance to ensure reliable outputs.
• Collaborate with analysts and engineers to translate requirements into data science solutions.
• Document methodologies, model performance, and analytical results.

Skills

Python

AI/ML

Statistics

ABI tools

Data visualization

Education

Bachelor's degree in Data Science / CS / IT or related

Tools

Tableau

Power BI

Job description

Job Type: Full time

Workplace Type: Onsite in Stuttgart, Germany

Clearance: Active TS/SCI with eligibility to obtain a CI Polygraph

Must be a U.S. Citizen

Benefits: Medical, dental, and vision coverage, 401k matching, generous PTO, paid holidays, professional training opportunities, and even pet insurance to ensure your furry friends are cared for too.

Job Summary

Castalia Systems is currently searching for a Senior Data Scientist who will leverage advanced data science, Python, AI/ML, statistical analysis, and ABI tools and tradecraft to analyze, integrate, and visualize complex mission data. This role will develop dashboards, perform data quality and preprocessing activities, and apply machine learning techniques to support actionable intelligence and mission-focused decision-making.

Roles and Responsibilities

A qualified candidate will perform the following duties and responsibilities, but are not limited to:

• 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.

Required Qualifications

• Bachelor’s degree in an area related to the labor category (i.e., Data Science/Engineering, IT, Computer Science, Information Science) from a college or university accredited by an agency recognized by the U.S. Department of Education or 7 years of experience conducting data science support, with at least a portion of the experience within the last 2 years
• 11 years of specific experience without a degree may be considered
• Produce data cleaning, basic analysis, and preparation for visualization
• Develop dashboards and perform routine data quality checks
• Perform data preprocessing, data integration, quality checks and assurance, and complex data visualization creation
• Develop dashboards with tools like Tableau or Power BI, and apply AI/ML models for unstructured data analysis

Preferred Qualifications

• Intelligence Community experience preferred

Requirements/Work Environment

• Normal office environment. No shift work.

Travel

• Less than 10% travel

Company Description

Castalia Systems is a proven business partner providing mission critical solutions to the Federal Government. We provide cutting edge solutions from Securing and Managing Data to Systems Engineering and Development. Castalia Systems is a pioneer in Artificial Intelligence Design and Application.

With our vast knowledge of our customers’ needs and relevant technology, our team is able to bring successful solutions to every mission. We are one‑upping our competitors by providing premium IT solutions and platforms with cutting‑edge technology so it’s so evident when you compare us with anyone.

Compensation

At Castalia Systems, we provide you with opportunities and choices and support your total well‑being. Our benefits include: Medical, dental, vision coverage, 401k matching, generous PTO, paid holidays, professional training opportunities, and even pet insurance to ensure your furry friends are cared for too. All regularly scheduled employees working at least 30 hours per week are eligible to participate in Castalia Systems’ benefit programs. Individuals that do not meet the threshold are only eligible for select offerings, not inclusive of health benefits.

Salary at Castalia Systems is determined by various factors, including but not limited to location, position knowledge, skills, competencies, and experience, as well as contract‑specific affordability and organizational requirements. In addition to competitive base compensation, we offer a comprehensive overseas compensation package designed to make your transition to Stuttgart as seamless as possible. Eligible employees may receive Cost of Living Allowance (COLA), relocation assistance, and per diem, with support available for both individuals and families relocating to Germany.

Disclaimer

Castalia Systems is an equal employment opportunity and affirmative action employer and strives to comply with all applicable laws prohibiting discrimination based on race, color, creed, sex, sexual orientation, age, national origin, or ancestry, physical or mental disability, veteran status, marital status, HIV‑positive status, as well as any other category protected by federal, state, or local laws. All such discrimination is unlawful, and all persons involved in the operations of the company are prohibited from engaging in this type of conduct.