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Principal Data Scientist

Zscaler

$182,000 - $260,000
Aug 20, 2025
Remote, US
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As organizations increasingly embrace AI, Zscaler's new product is designed to help them do so safely, securely, and responsibly by providing a trusted platform that supports both user-driven and agentic AI, ensuring data privacy and governance are never compromised.

Requirements

  • Possess an advanced degree (PhD preferred) in Computer Science, Machine Learning, Statistics, or a related field, combined with a strong understanding of ML algorithms, deep learning, neural networks, and their applications.
  • Demonstrated experience (3-5+ years) in applying diverse data science models and advanced Natural Language Processing (NLP) techniques for large-scale data analysis.
  • Proficiency in Python and SQL, with hands-on experience using key ML frameworks (e.g., TensorFlow, PyTorch).
  • Skilled in data manipulation, visualization, and analysis techniques and tools.
  • Proven ability to independently solve complex problems and collaborate effectively within a team environment.
  • Possess a strong foundation in mathematics and statistics, applying these to ML and AI, with hands-on experience in large generative models for text and image.
  • Proficient in cloud computing platforms (AWS, Azure, GCP), big data technologies (Hadoop, Spark), and data engineering principles, including SQL and NoSQL databases.

Responsibilities

  • Design, build, and implement machine learning models, including SLMs/LLMs, to enhance the intelligence and functionality of Zscaler’s internal and external platforms.
  • Conduct research and development in sophisticated AI/ML areas such as generative AI, predictive analytics, and anomaly detection.
  • Analyze complex datasets to extract key insights, continuously refining model accuracy and performance.
  • Collaborate with engineering and product teams to effectively integrate AI/ML technologies into Zscaler’s core solutions.
  • Stay current with advancements in ML, AI, and cybersecurity, applying specific knowledge of underlying frameworks and methodologies to ensure technical excellence.

Other

  • This is a remote position within the United States.
  • Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry.
  • If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler.
  • Zscaler’s salary ranges are benchmarked and are determined by role and level.
  • Zscaler is committed to providing equal employment opportunities to all individuals.