AI/ML Engineer for Defense Cyber Threat Intel

CACI International Inc.; San Antonio (TX); On-site; USD 93,500 - 196,500; Full time

Job summary

CACI International Inc. seeks a Data Scientist to design, deploy, and optimize AI/ML systems defending DoD networks. You will handle 1TB+ daily logs, lead model development, and ensure explainability for defensible intelligence. A TS/SCI clearance is required, with advanced ML experience and strong Python proficiency.

Join a mission-focused team at Lackland AFB, contributing to a resilient cyber defense posture with scalable production-grade solutions and mentorship for junior engineers.

Qualifications

• Active TS/SCI security clearance.
• DOD Directive 8140.01 (Security+ or equivalent).
• 5+ years in Machine Learning focused on deploying models into production.
• Master's in Data Science, AI, or related quantitative field preferred.
• Deep knowledge of ML frameworks such as PyTorch or TensorFlow.
• Strong Python. ML libraries including Spark MLlib, Scikit-learn, XGBoost, Keras, Hugging Face, PyTorch Geometric, MLflow.
• Explainability tools such as SHAP, GNNExplainer, or attention-based interpretation methods.
• Experience with data from multiple sources, labeling data for training, and identifying hidden patterns.
• Visualization: Matplotlib, Grafana, or Kibana.

Responsibilities

• Design & Deploy: Architect, build, and deploy high-performance ML models with 1TB+ daily ingestion across heterogeneous data sources into production.
• Drive the ML Lifecycle: Lead data preparation, model development, evaluation, monitoring, drift detection, and retraining.
• Model Innovation: Develop state-of-the-art algorithms, hybrid GNN and BiLSTM on dynamic network graphs.
• Optimize: Feature engineering, hyperparameter tuning, and advanced experimentation.
• Mentorship: Mentor junior software developers and provide technical guidance.
• Documentation: Ensure comprehensive analytics documentation and explainability from the start.

Skills

Python

ML deployment

Explainability

Data labeling

Communication

Education

Master's in Data Science, AI, or related quantitative field

Tools

PyTorch

TensorFlow

Spark MLlib

Scikit-learn

XGBoost

Keras

Hugging Face

PyTorch Geometric

MLflow

SHAP

GNNExplainer

Matplotlib

Grafana

Kibana

Job description

CACI International Inc. seeks a Data Scientist to design, deploy, and optimize AI/ML systems defending DoD networks. You will handle 1TB+ daily logs, lead model development, and ensure explainability for defensible intelligence. A TS/SCI clearance is required, with advanced ML experience and strong Python proficiency.

Join a mission-focused team at Lackland AFB, contributing to a resilient cyber defense posture with scalable production-grade solutions and mentorship for junior engineers.