Senior Data Scientist, Cybersecurity ML & LLM

Varonis; Northern (KY); Hybrid; USD 140,000 - 190,000; Full time

Job summary

Varonis is seeking a Senior Data Scientist to advance our machine learning and LLM capabilities in cybersecurity. You will collaborate with engineers, researchers, and product managers to design, build, evaluate, and deploy ML models and LLM-based features addressing complex security challenges.

You will lead end-to-end experimentation, implement robust evaluation, and help scale solutions into production while staying current with ML and NLP advances.

Qualifications

• Bachelor's degree in CS/Engineering/Math or related field.
• 5+ years of hands-on data science or ML experience.
• Proficiency in Python and ML/DL; experience with NLP and text classification.
• Experience with LLM-based applications, embeddings, and vector search.
• Experience with PySpark/Databricks is a plus.
• Strong communication and collaborative skills.
• Proven ability to deliver high-quality solutions in fast-paced environments.

Responsibilities

• Analyze large, complex datasets to identify patterns and trends for security threats.
• Collaborate with cybersecurity researchers to address emerging threats with ML/LLM approaches.
• Design, develop, evaluate ML and LLM-based solutions from experimentation through production.
• Develop and optimize LLM techniques including prompting, retrieval, embeddings, RAG, and fine-tuning.
• Design robust evaluation methodologies and experiments for classification and LLM-based systems.
• Stay up to date with ML/NLP/LLM advancements and evaluate their applicability.
• Collaborate with software and data engineers to integrate ML/LLM solutions into scalable production systems.
• Take ownership of complex data science problems from problem definition to deployment.

Skills

Machine Learning

Deep Learning

NLP

Python

PySpark

Vector Databases

LLMs

Model Evaluation

Team Collaboration

Education

Bachelor's degree in CS/Engineering/Math

Master's or PhD preferred

Tools

OpenAI

Hugging Face

Databricks

PyTorch

Vector databases

Job description

Varonis is seeking a Senior Data Scientist to advance our machine learning and LLM capabilities in cybersecurity. You will collaborate with engineers, researchers, and product managers to design, build, evaluate, and deploy ML models and LLM-based features addressing complex security challenges.

You will lead end-to-end experimentation, implement robust evaluation, and help scale solutions into production while staying current with ML and NLP advances.