Senior Machine Learning Engineer

Zscaler

Remote regions

US

Salary range

$115,500–$165,000/yr

Benefits

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Role Expectations:

  • Translate risk identification methods into agent logic, ensuring quality in risk analysis, explanations, and recommendations.
  • Collaborate with threat-research to understand data and threats, developing security heuristics and data requirements.
  • Follow a data-driven quality approach to threat detection, including backtesting, precision/recall tuning, and production deployment.

Success Profile:

  • Thrive in ambiguity and build the path forward in unstructured environments with ownership and passion.
  • Act like an owner, balancing high-level strategy with hands-on execution and a data-driven mindset.
  • Bring constructive energy to complex challenges, inspiring teams to stay solution-focused and impact-driven.

Minimum Qualifications:

  • Experience building LLM-powered agents in production with tool calling, prompt engineering, and orchestration frameworks.
  • 3+ years of Python development with production-quality systems, SQL, and data analytics libraries.
  • Demonstrated ownership of production reliability, CI/CD, containerization, and observability in live distributed systems.

Preferred Qualifications:

  • Experience with production AI/ML systems balancing cost, latency, and accuracy with model selection and regression testing.
  • Background in cyber threat research, detection engineering, fraud detection, or close collaboration with risk analysis teams.
  • Data engineering experience with large-volume event data, pipelines, and search-backed or columnar stores.

Zscaler

Zscaler accelerates digital transformation with its Zero Trust Exchange platform, protecting customers from cyberattacks and data loss. The company is the world's largest in-line cloud security platform, distributed across 160+ exchanges, with an AI-native culture focused on ownership, collaboration, and trust.

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