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Varonis

Data security platform with threat detection

Applied Data Scientist

Applied Machine LearningConfirmed live in the last 24 hours
Full-timeUnited StatesNo salary listedIn-person

About the Job

Requirements

  • A bachelor's degree in Computer Science, Engineering, Data Science, Statistics, or a related field is required; a master's degree is a plus.
  • Strong hands-on foundation in machine learning, applied statistics, and data science, including supervised learning, unsupervised learning, anomaly detection, model evaluation, and experimentation.
  • At least three years of experience applying data science or machine learning in production or applied settings.
  • Proficiency in Python and common data science and machine learning libraries.
  • Experience working with large language models in applied or production contexts, including prompt engineering, model selection, evaluation, retrieval-augmented generation, and safe deployment.
  • Familiarity with embeddings, vector databases, retrieval systems, and retrieval-augmented generation workflows for security, knowledge-intensive, or analyst-facing applications.
  • Understanding of AI and large language model security considerations, including adversarial inputs, prompt injection, data privacy, model misuse, governance, and safe system design.
  • Experience partnering with engineering teams to deploy, monitor, and improve machine learning models, AI workflows, or data products in production environments.
  • Ability to reason under uncertainty, work with noisy and incomplete data, and make pragmatic tradeoffs between model performance, explainability, latency, reliability, and operational value.
  • Ability to independently frame ambiguous problems, develop and validate solutions, and drive them from experimentation through production and measurable impact.
  • Strong communication and collaboration skills, with the ability to work effectively across security, engineering, data, product, and research teams.

Responsibilities

  • Apply machine learning, statistical analysis, large language models, and agent-assisted techniques to solve practical cybersecurity problems across detection, triage, investigation, and response.
  • Analyze large, complex security datasets to identify behavioral patterns, anomalies, attack signals, and trends that can improve threat detection and analyst workflows.
  • Translate real-world cybersecurity use cases into data science problems, including problem framing, dataset creation, feature development, model selection, evaluation, and iteration.
  • Design, develop, and evaluate machine learning and large language model-powered security workflows, including retrieval, reasoning, tool use, human-in-the-loop review, feedback loops, and guardrails.
  • Build evaluation frameworks, metrics, benchmarks, and test datasets to measure model quality, reliability, precision, recall, latency, robustness, and operational impact.
  • Develop prompts, instructions, retrieval strategies, and model interaction patterns that improve the usefulness, consistency, and safety of large language model-powered features.
  • Partner with software engineers to productionize models, AI agents, and data pipelines in secure, scalable, and maintainable systems.
  • Monitor deployed models and workflows for performance drift, data quality issues, false positives, false negatives, and opportunities for continuous improvement.
  • Collaborate with cybersecurity researchers, threat analysts, and product stakeholders to ensure AI capabilities address real user needs and evolving threat scenarios.
  • Translate relevant advances in machine learning, large language models, agentic AI, and cybersecurity into practical product improvements, evaluation methods, and internal best practices.

Desired Qualifications

  • Experience in cybersecurity, fraud, risk, abuse, observability, or other adversarial or high-noise domains is strongly preferred.
  • Experience with PySpark, Databricks, SQL, or large-scale data processing frameworks is a plus.

About the Company

Varonis

Data security platform with threat detection

Varonis Systems focuses on protecting sensitive information from cyber threats by offering a data security platform that continuously monitors data, detects threats, and automates responses through advanced analytics and automation. The platform helps large enterprises, government agencies, and educational institutions secure data and meet regulatory requirements via subscription-based access, with a heavy emphasis on data monitoring, threat detection, and automated response. The company differentiates itself through a strong recurring revenue model (95% recurring) and high renewal rates (90%), reflecting steady income and high customer satisfaction, alongside a broad customer base. Its goal is to help customers protect data, prevent breaches, and stay compliant while growing its subscription-based business.

Company size
1,001-5,000
Company stage
IPO
Headquarters
Miami, FL
Founded
2005

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