Data Scientist - AI/mL Specialist

CACI is seeking a Senior Data Scientist to support the Department of Homeland Security’’s Cyber Crimes Center (C3) in developing advanced AI and machine learning solutions for critical law enforcement investigations. In this role, you will:

• Design and deploy production-grade AI/ML systems that enable investigators to combat cybercrime and dismantle criminal networks
• Work within a collaborative technical team to deliver AI solutions that meet rigorous federal compliance standards
• Contribute to mission-critical national security operations while advancing responsible AI practices
• Apply cutting-edge machine learning techniques to solve complex investigative challenges

This position requires U.S. citizenship and eligibility to obtain a DHS Public Trust clearance.

Responsibilities:

• Design and implement production AI/ML systems compliant with federal, DHS, and ICE governance requirements
• Develop explainable and auditable AI solutions with integrated human-in-the-loop oversight mechanisms
• Build machine learning models for investigative analytics including entity resolution, network analysis, and anomaly detection
• Develop scalable data pipelines and ETL processes using Apache Airflow, Spark, and on-premise infrastructure
• Design database solutions optimized for AI training, fine-tuning, and real-time inference on investigative data Implement continuous monitoring systems to detect bias, performance degradation, and security vulnerabilities
• Support AI Use Case approval processes, Security Authorization (ATO), and risk management protocols
• Document system architecture, data flows, and model explanations for audit and transparency requirements
• Integrate AI capabilities with existing investigative systems through APIs and microservices
• Ensure data provenance documentation and lawful data acquisition per federal requirements
• Collaborate with software engineers, infrastructure architects, and cybersecurity specialists on cross-functional projects
• Communicate technical concepts and model decisions to both technical and non-technical stakeholders
• Maintain compliance with AI Security Control Baseline and federal governance frameworks
• Contribute technical expertise to team initiatives and share knowledge and best practices with team members

• Bachelor’’s degree in Data Science, Computer Science, Artificial Intelligence, Statistics, Mathematics, Engineering, or related technical field
• 5+ years of demonstrated AI/ML experience with a proven track record of delivering production AI systems
• Advanced proficiency with machine learning frameworks (TensorFlow, PyTorch, scikit-learn) and deep learning architectures
• Expert-level Python programming with extensive experience in Pandas, NumPy, and Spark
• Demonstrated experience deploying and maintaining production AI systems at scale
• Experience with on-premise infrastructure, data centers, and physical server environments
• Deep knowledge of explainable AI techniques and model interpretability methods (SHAP, LIME)
• Proven experience developing AI systems that comply with federal governance and ethical standards
• Proficiency with MLOps practices, model versioning, CI/CD pipelines, and workflow orchestration
• Strong communication skills with ability to convey complex technical concepts to diverse audiences
• Active Public Trust clearance or ability to obtain and maintain clearance

Desired:

• Master’’s degree or PhD in a related technical field
• Experience with Generative AI, large language models, prompt engineering, and fine-tuning techniques
• Knowledge of AI security, bias detection and mitigation, and adversarial machine learning
• Background in federal law enforcement or intelligence community AI applications
• Expertise in Open-Source Intelligence (OSINT) analysis and cyber threat intelligence
• Proficiency with Elasticsearch, Kibana, graph databases, and investigative analytics platforms
• Familiarity with federal AI policies including Executive Orders 13960/14110, OMB guidance, and DHS/ICE directives
• Experience with real-time streaming analytics and Change Data Capture (CDC), Access Authorization, Apache Spark, Application Programming Interface (API), Artificial Intelligence (AI), Artificial Intelligence (AI) Programming Languages, Best Practices, Centers for Disease Control and Prevention (CDC), Communication Skills, Computer Science, Computer Security, Continuous Deployment/Delivery, Continuous Integration, Cross-Functional, Data Collection, Data Management, Data Modeling, Data Science, Database Analysis, Database Design, Database Extract Transform and Load (ETL), Database Optimization, Deep Learning, Documentation, Elasticsearch, Federal Compliance Regulations, Federal Contracts, Federal Government, Federal Laws and Regulations, Government Contracts, Homeland Security, Intelligence Community, Internet Security, Law Enforcement, Machine Learning, Maintain Compliance, Mathematics, Microservices, Modeling Languages, Network Operations Center, Network Performance/Analysis, Production Systems, Python Programming/Scripting Language, Risk Management, Safety/Work Safety, Scalable System Development, Security Compliance, Software Engineering, Statistics, System Architecture, Systems Maintenance, Team Player, Technical Delivery, Use Cases, Willing to Travel

This position is contingent on funding and may not be filled immediately. However, this position is representative of positions within CACI that are consistently available. Individuals who apply may also be considered for other positions at CACI.

What You Can Expect:

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose - to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation’’s most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.

Pay Range:

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The proposed salary range for this position is:

$94,400 - $198,200