Senior Software / Senior Staff/ Staff Engineer( C | Networking Protocol |TCP/IP | HTTPS)

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 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. 

As a  Staff Software Engineer(multiple levels), you will work on building the next generation Zscaler Private Access (ZPA) product and Shift product in the Emerging Technology group. You will play a crucial role in designing, building and enhancing distributed systems components, write high performance code using very efficient algorithms and ensure that memory is used efficiently so that system responsiveness is maintained during high load times. You must also be able to process packets at both ingress and egress points at very high speed so that client using the system does not perceive any increased latencies. Additionally, you will collaborate with the operations team (OPS) to deploy, monitor and if required patch the changes with fixes and enhancements as well as continuously scale the systems as more customers/users get added, the engineer should be able to identify hotspots, and timely alleviate/remediate the situation.

Come and join our team and be part of this exciting transformation to cloud based security.

Responsibilities / Requirements:

• 7+ years of experience in C programing in a highly distributed and enterprise-scale environment 
• Very strong design and development skills for high-volume production applications
• TCP/IP protocol stack, HTTP, DNS, and other related protocols
• Experience developing distributed software product architectures
• Unix/Linux Kernel & file system
• Experience coding in C/C++ and other technologies
• Experience working with large data sets
• Strong software design, profiling, and verification skills
• Deep understanding of the concepts behind solid software design: Abstraction, Modularity, Design Patterns, Representation Invariants, etc.
• Networking, wireless, and/or security experience or knowledge preferred
• Work experience through complete software project delivery cycles

 Big Plus:

• Experience working with Identity stores such as AD/ADFS, authentication and authorization protocols & standards such as SAML, OAuth, MFA and Kerberos
• Knowledge of Identity Management solution such as Okta, Sailpoint, Cyberark
• Experience working in Security, Encryption, TLS, SSH 
• Knowledge of OT/IoT, Industrial Control System security will be an advantage

Education Required:

• Master's or Bachelor’s degree in either Computer Science, Computer Engineering, Electrical Engineering or Software Engineering

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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 proud to be an equal opportunity and affirmative action employer. We celebrate diversity and are committed to creating an inclusive environment for all of our employees. All qualified applicants will receive consideration 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 characteristics protected by federal, state, or local laws.

See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link.

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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.