Staff Software Development Engineer

About Zscaler Zscaler accelerates digital transformation to ensure our customers can be more agile, efficient, resilient, and secure. As an AI-forward enterprise , we are constantly pushing the envelope, leveraging the world’s largest security data lake to power our cloud-native Zero Trust Exchange platform. This innovation protects our customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Here, impact in your role matters more than title and trust is built on results. We say, impact over activity. We seek innovators who actively use AI to amplify their impact and who thrive in an environment where we leverage intelligent systems to stay ahead of evolving threats. We believe in transparency and value constructive, honest debate —we’re focused on getting to the best ideas, faster. We build high-performing teams that can make an impact quickly and with high quality. To do this, we are building a culture of execution centered on customer obsession , collaboration, ownership, and accountability. We value high-impact, high-accountability with a sense of urgency where you’re enabled to do your best work and embrace your potential. If you’re driven by purpose, thrive on solving complex challenges, and want to be part of the team that’s helping to secure the AI age, we invite you to bring your talents to Zscaler and help shape the future of cybersecurity. Role   We are looking for a Staff Software Development Engineer to join our team. This is a Hybrid (3 days / week) role, reporting to the Director, Software Development Engineering in the AI Security department. The engineer will own features end-to-end across the full stack, from React UI to Spring Boot microservices to cloud-native infrastructure on AWS and Kubernetes.  What you’ll do (Role Expectations) Build full-stack features across React UI, Spring Boot microservices, and cloud-native infrastructure on AWS and Kubernetes Design REST APIs and event-driven Kafka services within a microservices architecture Own features end-to-end, including logging, observability, and cross-functional collaboration with UX and PM Who You Are (Success Profile) You act like an owner. Your passion for the mission fuels your bias for action, operating with integrity because you genuinely care about the outcome while navigating seamlessly between high-level strategy and hands-on execution. You are a high-trust collaborator. You are ambitious for the team, not just yourself, embracing our challenge culture by giving and receiving ongoing feedback with candor, clarity, and respect. You are customer-obsessed. You build deep empathy for both internal and external customers, anchoring your decisions in solving real-world problems and championing their needs from start to finish. You operate with urgency. You understand that speed and quality are not mutually exclusive in a high-growth environment, bringing a relentless focus on execution to deliver high-impact results quickly. You are driven by innovation. You possess a deep curiosity for how things work, thrive when solving complex technical challenges, and constantly seek better, more secure, and scalable ways to accelerate transformation. What We’re Looking for (Minimum Qualifications) Foundational understanding of AI/ML technologies and experience leveraging, securing, or positioning AI-driven solutions to optimize outcomes within your functional domain 5+ years of software development experience building enterprise-grade solutions Proficiency in Java with Spring Boot; strong JavaScript/TypeScript skills with ReactJS and state management libraries Experience designing and consuming REST APIs in a microservices architecture Experience with Kafka or similar event-streaming platforms Familiarity with containerized deployments on Kubernetes and core AWS services What Will Make You Stand Out (Preferred Qualifications) Experience developing security guardrails, secure coding practices, or observability features for AI/ML orchestration layers and LLM applications Experience building enterprise-grade security or networking products using PostgreSQL or Elasticsearch Unit testing experience with React Testing Library, Jest, or Mocha, alongside familiarity with modern JS build tooling such as Webpack or Vite #LI-hybrid #LI-KM8 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. 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