Sr. Software Development Engineer - Python Automation / Kubernetes / Networking

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 Senior Software Development Engineer to join our Platform & Reliability Engineering department in Bangalore, reporting to the Director of Platform & Reliability Engineering. In this role, you will play a key role in ensuring the quality, scalability, and reliability of ZDX solutions. You will lead automation initiatives to build robust frameworks, validate feature functionality, optimize system performance, and champion an AI-first approach to development. This is an exciting opportunity to contribute to cloud-based systems that process large volumes of data while delivering world-class user experiences.

What You’ll Do (Role Expectations)

• Design and develop scalable, reusable, and maintainable test automation frameworks using an AI-first development methodology
• Develop and execute end-to-end tests to ensure seamless operation of ZDX components, including cloud services, analytics dashboards, APIs, and user-facing applications
• Collaborate with engineering and DevOps teams to integrate testing pipelines into CI/CD workflows, ensuring faster release cycles without compromising quality
• Utilize analytics tools, logs, and testing outputs to identify bottlenecks and troubleshoot issues systematically
• Continuously refine testing methodologies to improve coverage, detect issues earlier, and maximize efficiency

Who You Are (Success Profile)

• You thrive in ambiguity. You’re comfortable building the path as you walk it. 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. Your passion for the mission fuels your bias for action. You operate with integrity because you genuinely care about the outcome. True ownership involves leveraging dynamic range: the ability to navigate seamlessly between high-level strategy and hands-on execution.
• You are a problem-solver. You love running towards the challenges because you are laser-focused on finding the solution, knowing that solving the hard problems delivers the biggest impact.
• You are a high-trust collaborator. You are ambitious for the team, not just yourself. You embrace our challenge culture by giving and receiving ongoing feedback—knowing that candor delivered with clarity and respect is the truest form of teamwork and the fastest way to earn trust.
• You are a learner. You have a true growth mindset and are obsessed with your own development, actively seeking feedback to become a better partner and a stronger teammate. You love what you do and you do it with purpose.

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
• 4+ years of experience in automation testing, preferably within cloud or SaaS environments
• Proficiency in programming languages such as Python, Java, or JavaScript for building automation…