Castellum Inc. · 7 hours ago
Senior Data Scientist
Washington, DC, US
Full-time
Onsite
Senior Level
$140K/yr - $160K/yr
5+ years expCastellum Inc. is seeking a Senior Data Scientist to support mission-focused programs in the National Capital Region. The role involves collaborating with various stakeholders to derive actionable insights from complex datasets, utilizing statistical and machine learning models to optimize products and processes.
Information ServicesInformation Technology
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Work with stakeholders throughout the organization to identify opportunities for leveraging company data to drive business solutions
Mine and analyze data from company databases to drive optimization and improvement of product development, marketing techniques and business strategies
Assess the effectiveness and accuracy of new data sources and data gathering techniques
Develop custom data models and algorithms to apply to data sets
Use predictive modeling to increase and optimize customer experiences, revenue generation, ad targeting and other business outcomes
Develop company A/B testing framework and test model quality
Coordinate with different functional teams to implement models and monitor outcomes
Develop processes and tools to monitor and analyze model performance and data accuracy
Qualification
Required
5-7 years of experience manipulating data sets and building statistical models
Master's or PHD in Statistics, Mathematics, Computer Science, or another quantitative field
TS/SCI Level Security Clearance
Strong problem-solving skills with an emphasis on product development
Experience using statistical computer languages (R, Python, SLQ, etc.) to manipulate data and draw insights from large data sets
Experience working with and creating data architectures
Knowledge of a variety of machine learning techniques (clustering, decision tree learning, artificial neural networks, etc.) and their real-world advantages/drawbacks
Excellent written and verbal communication skills for coordinating across teams
Coding knowledge and experience with several languages: C, C++, Java, JavaScript, etc
Knowledge and experience in statistical and data mining techniques: GLM/Regression, Random Forest, Boosting, Trees, text mining, social network analysis, etc
Experience using web services: Redshift, S3, Spark, DigitalOcean, etc
Experience creating and using advanced machine learning algorithms and statistics: regression, simulation, scenario analysis, modeling, clustering, decision trees, neural networks, etc
Experience analyzing data from 3rd party providers: Google Analytics, Site Catalyst, Coremetrics, Adwords, Crimson Hexagon, Facebook Insights, etc
Experience with distributed data/computing tools: Map/Reduce, Hadoop, Hive, Spark, Gurobi, MySQL, etc
Experience visualizing/presenting data for stakeholders using: Periscope, Business Objects, D3, ggplot, etc
Company
Castellum Inc.
Castellum, Inc.
51-200 employees
Funding
Current Stage
Public CompanyTotal Funding
$23.32MKey Investors
Live Oak Bank
2025-06-12Post Ipo Equity· $5M
2025-03-16Post Ipo Equity· $4.5M
2024-12-23Post Ipo Equity· $3.6M
Leadership Team
Mark C Fuller
Chairman/President & CEO
Recent News
2025-12-09
Castellum, Inc.
2025-11-08
2025-11-08
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