Sr. Staff Software Development Engineer (Java/Spring/Distributed Systems)

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.

We are seeking an experienced and visionary Senior Staff Software Development Engineer to join our core API team. Reporting to the Senior Manager, Software Development Engineering, you will play a pivotal role in driving high-performance API design, building robust microservices, and shaping our long-term system architecture.

In this role, you will bridge the gap between complex back-end architectures and front-end interface requirements, delivering scalable, secure, and reliable systems that power our core platform.

What You’ll Do (Key Responsibilities)

• High-Impact API Development: Design and develop high-quality, performant, scalable, reusable, extensible, secure, and reliable APIs

• Microservices & Integration: Write microservices, extend in-house APIs, and develop client-side code that interacts seamlessly with internal and external APIs (RESTful services and SDKs)

• Cross-Functional Collaboration: Partner closely with front-end engineering teams to understand user requirements and build robust endpoints that power intuitive, high-performing interfaces

• DevOps Culture & Practice: Champion a DevOps mindset by actively working on continuous integration, infrastructure provisioning, automated deployment, testing, and version control

• Architectural Leadership: Drive strategic technical contributions, including system design, architectural governance, and guiding the long-term technical roadmap

Who You Are (Success Profile)

• Driven by Innovation: You have a deep curiosity for how things work and are energized by solving complex technical challenges. You believe in technology's power to accelerate transformation and continuously seek modern, scalable ways to build systems

• Think at Scale: You connect your day-to-day work to the broader business mission, designing solutions, processes, and architectures that are built to last and support high-growth global platforms

• A Problem-Solver: You seek out challenges and derive energy from finding solutions, knowing that solving hard technical problems yields the greatest impact

• A High-Trust Collaborator: You thrive in a culture of candid feedback, exchanging ideas with clarity and respect to build deep trust across cross-functional engineering teams

• Data-Driven: You leverage metrics and