Skip to content

Sr. Security Data Scientist

Develops ML models for threat detection, risk assessment, and anomaly detection using security graphs and telemetry data. Collaborates with product teams to integrate insights into cybersecurity platform features. Requires 5+ years in security data science with Python/ML expertise.

170k – 196kSunnyvale, CAData ScienceOnsite5+ YOE

About the role

Your Impact

Threat Intelligence and Risk Modeling

  • Examine large-scale security datasets to identify threat patterns, attacker TTPs (Tactics, Techniques, and Procedures), and emerging risks.
  • Construct and iterate on threat risk models using statistical and machine learning methods to evaluate breach likelihoods and segmentation efficacy.
  • Utilize security graphs to model attack paths, recommend segmentation strategies to reduce the risk of lateral movement, and suggest mitigation strategies.

Detection and Analytics Engineering

  • Create ML models for anomaly detection, behavioral profiling, and breach identification across multi-cloud, hybrid, and on-premises setups.
  • Work with threat researchers and engineers to enhance datasets, test hypotheses, and develop detection algorithms based on real-world threats.
  • Assess and refine model performance to deliver reliable detections with low false positives.

Product Collaboration and Strategic Guidance

  • Team up with product managers, engineers, and designers to integrate threat insights into roadmaps, user interfaces, and analytics tools.
  • Advise on threat assessment frameworks, data needs, and incorporating external intelligence sources.
  • Deploy and monitor models in production, ensuring scalability and reliability.

Research and Thought Leadership

  • Investigate cutting-edge techniques for graph-based threat detection, like graph neural networks or AI-optimized policies.
  • Contribute to internal research, patents, and potential publications to position Illumio as an industry leader.
  • Track adversary trends, regulatory shifts, and innovations to influence our detection and risk strategies.

Your Toolkit

  • 5+ years of experience in data science, detection engineering, threat intelligence, or security analytics, ideally in dynamic environments like cloud or network security.
  • Proficiency in Python for data handling and modeling (e.g., Pandas, NumPy, Scikit-learn, TensorFlow/PyTorch), complemented by solid SQL skills for large dataset queries.
  • Hands-on experience developing and deploying ML or statistical models for security applications, such as anomaly detection or risk assessment.
  • Familiarity with threat detection principles and frameworks (e.g., MITRE ATT&CK).
  • Security telemetry sources (e.g., EDR, NDR, AWS or Azure flow logs, AWS GuardDuty, Azure Defender data, etc).
  • Network security fundamentals, including zero-trust and segmentation concepts.
  • Proven ability to evaluate models, tune parameters, and manage challenges like imbalanced data in security scenarios.
  • Skill in communicating technical insights to diverse audiences, from engineers to product leaders.
  • Experience with large-scale telemetry datasets from varied sources.

Preferred Qualifications

  • 7-10+ years in the field, with a track record in high-impact security roles.
  • Knowledge of graph databases and analytics (e.g., Neo4j, graph algorithms applied to security).
  • Experience productionizing ML models in cloud environments (e.g., AWS, GCP, Kubernetes).
  • Background at a cybersecurity product company (e.g., in endpoint, SIEM, or network security).
  • Expertise in identity threats or integrating threat intel APIs.
  • Publications, open-source contributions, or certifications (e.g., CISSP, GIAC, advanced ML certs).

Skills

PythonpandasNumPyscikit-learnTensorFlowPyTorchSQLMachine LearningMitre Att&CkGraph Neural NetworksNeo4JAWSGCPKubernetesAnomaly Detection

Similar roles

Data Science jobs

Quantitative Researcher

Conduct original quantitative research and build analytics capabilities using private markets data to generate insights, develop indices, and support product and marketing efforts. Requires 6-10 years experience in equities markets, advanced programming skills, and a Master's degree.

170k – 220kSan Francisco, CAData ScienceHybrid6+ YOEsqlpython

Quantitative Researcher

Conduct original quantitative research and build analytics capabilities using private markets data to generate insights and indices for clients and internal teams. Requires 6-10 years experience in equities markets, advanced programming skills, and a Master's degree.

170k – 220kNew York, NYData ScienceHybrid6+ YOEsqlai/ml

Senior Manager, Data Science & Analytics

Lead and grow a data science & analytics team that partners with Product, Marketing, Sales, and CX to drive forecasting, experimentation, behavioral analytics, and measurement at a B2B SaaS company.

170k – 200kUnited StatesData ScienceRemote7+ YOEsqldbt

Senior Data Scientist - Fraud Data Infrastructure & Automation

Senior Data Scientist builds scalable data pipelines, agentic AI/LLM systems, and ML models for fraud detection and identity verification using diverse data types. Owns end-to-end projects, ensures data quality, evaluates vendors, and collaborates cross-functionally. Requires 5+ years experience, Master's/PhD, Python/SQL/ML expertise.

170k – 200kCarson City, NV +5Data ScienceRemote5+ YOEsqlray

Senior Data Scientist

Senior Data Scientist building and deploying ML models for customer prediction, segmentation, and growth at a fintech company. Requires 5+ years experience, Python ML expertise, and SQL.

170k – 220kNew York, NYData ScienceOn-site5+ YOEsqlgcp