Staff Software Development Engineer- CC++

About Zscaler

Zscaler is a pioneer and global leader in zero trust security. The worlds largest businesses critical infrastructure organizations and government agencies rely on Zscaler to secure users branches applications data & devices and to accelerate digital transformation initiatives. Distributed across more than 160 data centers globally the Zscaler Zero Trust Exchange platform combined with advanced AI combats billions of cyber threats and policy violations every day and unlocks productivity gains for modern enterprises by reducing costs and complexity.

Here impact in your role matters more than title and trust is built on results. We believe in transparency and value constructive honest debatewere 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 champion an AI Forward People First philosophy to help us accelerate and innovate empowering our people to embrace their potential. If youre driven by purpose thrive on solving complex challenges and want to make a positive difference on a global scale we invite you to bring your talents to Zscaler to help shape the future of cybersecurity.

Role

We are looking for a Staff Development Engineer Nanolog to join our team. This is a Hybrid (San Jose 3 days in office) role reporting to the Sr. Director Software Engineering in the Zero Trust Exchange department.

You will play a critical role in the evolution of the Zscaler Nanolog Service driving the design and optimization of our proprietary timeseries database. By identifying system bottlenecks and implementing kernel-level enhancements you will ensure our platform continues to deliver high-performance scalable security solutions for our global customer base.

What Youll Do (Role Expectations)

• Design develop and test enhancements to the Zscaler Nanolog Service powered by the proprietary timeseries database.
• Profile and analyze system performance identify bottlenecks and deliver code improvements in areas such as memory management file I/O and data structures.
• Stay updated on emerging database technologies and trends to evaluate new concepts for our database kernel.
• Work closely with cross-functional teams including product managers and other engineering leads to define and prioritize technical requirements.
• Troubleshoot and debug complex database issues reported by internal teams or customers.

Who You Are (Success Profile)

• You thrive in a dynamic environment seeing ambiguity not as a hindrance but as the raw material to build something meaningful.
• You act like an owner operating with integrity because you genuinely care about the outcome.
• You seek out challenges because you are energized by finding solutions knowing that solving the hard problems delivers the biggest impact.
• You are customer-obsessed championing their needs from start to finish because their success is our success.
• You are driven by innovation believing in the power of technology to accelerate transformation and always looking for a better more secure and scalable way.

What Were Looking For (Minimum Qualifications)

• 5 years of C programming experience on Unix/Linux platforms.
• Deep proficiency in algorithms and data structures.
• Solid understanding of distributed systems and experience building scalable systems.
• Deep expertise in Unix/Linux OS internals and command-line utilities to build debug and optimize high-performance services.
• Bachelors degree in Computer Science or a related technical field.

What Will Make You Stand Out (Preferred Qualifications)

• Understanding of database kernels and internal architectures.
• Proficiency in schema design and management for database and big data environments.

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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:

By applying for this role you adhere to applicable laws regulations and Zscaler policies including those related to security and privacy standards and guidelines.

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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.