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# Sr. Principal Data Scientist

- **Company:** Clarity
- **Location:** Springfield, VA, United States
- **Experience:** Expert
- **Salary:** $139,000.0 - $314,000.0
- **Contract:** Permanent contract
- **Skills:** A/B Testing, Artificial Intelligence, Data Visualization, Decision Support Systems, Python (Programming Language), Machine Learning, Natural Language Processing, NumPy, Operational Data Store, Performance Tuning, Standard Sql, SciPy, Feature Engineering, Large Language Models, Model Validation, Jupyter, Pandas, Scikit Learn
- **Published:** September 10, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=21e28b8c3f9bd43a

## About the Role

* Python
 * Pandas
 * NumPy
 * SciPy
 * Scikit-learn
 * Statistical analysis
 * Machine learning
 * Predictive modeling
 * Classification/clustering
 * Natural language processing
 * LLM evaluation
 * Data visualization
 * Jupyter
 * SQL
 * Feature engineering
 * Experimental design
 * Model evaluation
 * A/B testing
 * Data quality analysis
 * Time-series analysis
 * AI performance metrics

## Description

The Data Scientist will apply statistical, analytical, and machine-learning techniques to improve decision-support workflows and the performance of AI-enabled capabilities. The Data Scientist will analyze operational data, identify opportunities for automation and decision support, develop analytical models and evaluation methodologies, and help establish measurable performance indicators for delivered capabilities.

The role will work closely with the AI/ML Architect and AI/ML Engineer to evaluate model and agent performance, develop datasets and test cases, analyze user feedback and system behavior, and identify opportunities to improve AI outputs. The Data Scientist will also support institutional knowledge and information-synthesis capabilities.


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