Sr. Staff Software Engineer - API Tooling and Frameworks

Zscaler, Inc.
parental leave, sick time, tuition reimbursement
United States, California, San Jose
Jun 24, 2025
About Zscaler Serving thousands of enterprise customers around the world including 40% 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, and security experts who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy. We're looking for a talented Senior Staff Software Engineer to join our API & Cloud Platform team. Reporting to the Sr. Director, Engineering/Shared Services, you'll be responsible for: Contributing to the design of an API platform for Zscaler products, focusing on standardization, governance, and delivering an exceptional developer experience Driving innovation and refining the API development processes, tools, and integration methodologies across Zscaler's product portfolio Developing scalable microservices and SDKs for programming languages like Java, Go, and JavaScript, ensuring smooth API integration and high availability Participating in system performance monitoring, troubleshooting, and optimizing operability to ensure reliability and security Mentoring engineering teams and fostering collaboration across cross-functional groups to enable scalability, secure architecture, and efficient solutions What We're Looking for (Minimum Qualifications): 7+ years of experience in one or more programming languages (e.g., Go, Java, JavaScript) and 5+ years in API framework design and cloud technologies focused on developer experience Strong knowledge of API design standards, best practices (e.g., Swagger/OpenAPI 3.0, REST, JSON, Authn/z), and API-first design principles Proficiency in developing microservices and containerized environments (e.g., Kubernetes, Docker) Familiarity with distributed systems concepts, including caching, queues, pub/sub architectures, and monitoring solutions Experience collaborating with product managers to align development efforts with external-facing products and business goals What Will Make You Stand Out (Preferred Qualifications): Proven ability to build SDKs and developer tooling that integrate seamlessly with APIs across various ecosystems Expertise in workflow automation, developer environment setup, and process standardization using open-source or proprietary tools Background in using cloud platforms (AWS, GCP) and deep knowledge of observability for high-performing distributed systems #LI-JM1 #LI-Hybrid Zscaler's salary ranges are benchmarked and are determined by role and level. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations and could be higher or lower based on a multitude of factors, including job-related skills, experience, and relevant education or training. The base salary range listed for this full-time position excludes commission/ bonus/ equity (if applicable) + benefits. Base Pay Range $154,000 — $220,000 USD 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 vacation and sick time Parental leave options Retirement options Education reimbursement In-office perks, and more! 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.