Data Scientist - AI/ML Specialist

CACI; Fairfax (VA); On-site; USD 120,000 - 170,000; Full time

Job summary

CA CI is seeking a Data Scientist - AI/ML Specialist to support the Department of Homeland Security's Cyber Crimes Center in developing advanced AI/ML solutions for critical investigations. You will design and deploy production-grade AI systems enabling investigators to combat cybercrime and dismantle networks, while ensuring compliance with federal standards.

You will collaborate with software, infrastructure, and cybersecurity teams to build scalable pipelines, provide model explanations, and

Qualifications

• Bachelor's degree in Data Science, Computer Science, AI, Statistics, Mathematics, Engineering, or related field.
• 5+ years of professional data science experience.
• 2+ years in AI/ML production systems.
• Advanced proficiency with ML frameworks (TensorFlow, PyTorch, scikit-learn) and deep learning architectures.
• Expert-level Python with Pandas, NumPy, and Spark.
• Experience deploying production AI systems and working with on-premise infrastructure.
• Knowledge of explainable AI techniques (SHAP, LIME) and governance.

Responsibilities

• Design and implement production AI/ML systems compliant with federal, DHS, and ICE governance requirements.
• Develop explainable and auditable AI solutions with human-in-the-loop oversight.
• Build ML models for investigative analytics including entity resolution, network analysis, and anomaly detection.
• Develop scalable data pipelines and ETL using Apache Airflow and Spark.
• Design databases optimized for AI training, fine-tuning, and real-time inference.
• Document system architecture, data flows, and model explanations for audit and transparency.
• Integrate AI capabilities with existing investigative systems via APIs and microservices.
• Ensure data provenance and lawful data acquisition per federal requirements.

Skills

TensorFlow

PyTorch

scikit-learn

Python (Pandas, NumPy)

Spark

MLOps / CI/CD

Explainable AI (SHAP, LIME)

Data governance / compliance

API / microservices

Education

Bachelor's degree in Data Science

Master's degree or PhD (desired)

Tools

Elasticsearch

Kibana

Graph databases

Investigative analytics platforms

Job description

Job Title: Data Scientist - AI/ML Specialist

Job Category: Science

Time Type: Full time

Minimum Clearance Required to Start: None

Employee Type: Regular

Percentage of Travel Required: Up to 25%

Type of Travel: Continental US

* * *

The Opportunity

CACI is seeking a 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.

You will design and deploy production-grade AI/ML systems that enable investigators to combat cybercrime and dismantle criminal networks

In addition, you will work within a collaborative technical team to deliver AI solutions that meet rigorous federal compliance standards

Apply cutting-edge machine learning techniques to solve complex investigative challenges for mission-critical national security operations while advancing responsible AI practices

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

Qualifications

Required:

• Bachelor's degree in Data Science, Computer Science, Artificial Intelligence, Statistics, Mathematics, Engineering, or related technical field
• 5+ years of demonstrated professional experience in a Data Science role
• 2+ years of AI/ML professional 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
• Willing and able to work onsite in Fairfax, VA
• Active Public Trust clearance or ability to obtain and maintain clearance

Desired:

• Master's degree or PhD in a related technical field
• Strong communication skills with ability to convey complex technical concepts to diverse audiences
• 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

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 crit