Senior Machine Learning Engineer, AI Security

Job overview

The Senior Machine Learning Engineer role is remote within the United States and reports to the Manager of AI Platform and Data Science. The stated annual base salary range is $115,500–$165,000. Zscaler’s AI Platform and Data Science team focuses on high-fidelity risk identification in customer data, aiming to detect threats while minimizing noise. The engineer builds AI, machine learning, and data engineering components that automate security analysis. The role works with threat research and data engineering to develop, evaluate, deploy, and monitor data-driven threat detection solutions.

What you'll do

• Translate risk-identification methods into agent logic
• collaborate with threat research on data, threats, and security heuristics
• identify data requirements and work with data engineering on pipelines, enrichments, and aggregations
• evaluate threat detection through backtesting, precision-recall balancing, tuning, and quality control
• deploy and monitor solutions in production within the CI/CD framework.

What we're looking for

Skills & competencies

senior machine learning engineer

machine learning

llm agents

ai security

threat detection

python

sql

data engineering

ci/cd

remote usa

zscaler

risk identification

$115,500–$165,000/year

Work arrangement

• Weekend coverage required

Benefits & perks

• Health plans, vacation and sick time, parental leave, retirement options, education reimbursement, and in-office perks.

Why this role

Production-focused machine learning role involving LLM-powered agents, threat research, and data-driven risk analysis.

About the employer

Zscaler is hiring for this role. Industry: Software Publishers. Sector: 51.