About the job
Zscaler connects users, devices, and applications securely from anywhere, supporting organizations as they move to cloud-first strategies. The company’s Zero Trust Exchange platform relies on a large-scale security data lake to help protect against cyber threats and data breaches. Teams at Zscaler value results, encourage open discussion, and prioritize trust, accountability, and customer focus.
Role overview
The Senior Staff Machine Learning Engineer joins the Digital Experience (Core Intelligence and Data) team. This hybrid role is based in San Jose, California, with an in-office requirement of three days per week. Reporting to the Senior Manager of Software Engineering, this position supports the ongoing development and improvement of Zscaler’s cloud security platform, which serves more than 15 million users worldwide. The work centers on advancing a scalable, multitenant architecture that enables organizations to adopt cloud solutions securely.
What you will do
- Lead the creation of a troubleshooting framework by defining high-impact use cases, designing workflows and playbooks, and establishing processes across Zscaler products.
- Assess and incorporate new GenAI technologies to deliver production features, focusing on reliability and cost-effectiveness. This includes working with large language models (LLMs), machine learning models, data processing, model fine-tuning, and inference optimization.
- Collaborate with cloud platform and data lake teams to identify and develop new features.
Location
This is a hybrid position based in San Jose, California. Expect to be in the office three days each week.

