Principal Inmation Security Engineer

Overview About Zscaler Serving thousands of enterprise customers around the world including 45% of Fortune 500 companies, Zscaler (NASDAQ: ZS) was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. As the operator of the world’s largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, efficient, resilient, and secure. The pioneering, AI-powered Zscaler Zero Trust Exchange™ platform, which is found in our SASE and SSE offerings, protects thousands of enterprise customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. 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. Our Engineering team built the world's largest cloud security platform from the ground up, and we keep building. With more than 100 patents and big plans for enhancing services and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader, with more than 15 million users in 185 countries. Bring your vision and passion to our team of cloud architects, software engineers, security experts, and more who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy. We are looking for an experienced Principal Information Security Engineer to join our Product Security Team. Reporting to the Sr. Director, Information Security, you’ll be responsible for Leading the design and implementation of secure architectures for AI/ML components and features integrated into Zscaler's cloud security products Developing a strategic roadmap for AI/ML product security, aligning with Zscaler's product vision, business objectives, and the evolving threat landscape Conducting specialized threat modelling exercises for new and existing AI/ML product features and models, identifying unique vulnerabilities such as adversarial attacks, data poisoning, model inversion, prompt injection, and bias that could impact product efficacy or customer data Perform comprehensive security risk assessments of AI/ML product initiatives, providing actionable recommendations and driving their remediation within product development cycles Collaborate closely with AI/ML engineers, data scientists, product management, and other architecture teams to embed security requirements and controls throughout the AI/ML product development lifecycle (SDLC/MLOps) What We’re Looking For (Minimum Qualifications): 10+ years of progressive experience in Information Security, with at least 5+ years in a dedicated Security Architecture role, preferably in a cloud-native product environment 3+ years of direct experience securing AI/ML systems, models, and data within commercial software products or large-scale SaaS offerings, with a deep understanding of AI/ML specific threat vectors Proven expertise in designing and securing large-scale, distributed systems on public cloud platforms (AWS, Azure, GCP) as part of a product engineering lifecycle Strong understanding of AI/ML fundamentals, algorithms, model development lifecycles, and MLOps principles as applied in a product development context Hands-on experience with threat modeling methodologies (e.g., STRIDE, MITRE ATLAS for ML) applied to product features What Will Make You Stand Out (Preferred Qualifications): Demonstrated ability to translate complex security requirements into practical, implementable architectural designs for product teams Excellent communication, presentation, and interpersonal skills, with the ability to influence technical and non-technical stakeholders (including Product Managers) across all levels of the organization Ability to work independently and as part of a globally distributed team Diversity and Inclusion LI-SU1 At Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure. Benefits Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including: Various health plans Time off plans for vacation and sick time Parental leave options Retirement options Education reimbursement In-office perks, and more Learn more about Zscaler’s Future of Work strategy, hybrid working model, and benefits here. By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support. 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