Zscaler
Tech / AI / Software
Sr.PlatformEngineer
“Sr. Platform Engineer at Zscaler. Skills: Kubernetes, Platform Engineering, Automation, Cloud Networking, Observability, Security. Own architecture and lifecycle of multi-tenant Kubernetes clusters across public and sovereign environments. Deliver 99.999% uptime with multi-region HA, failover, DR, scaling, and security hardening”
Industry & Context.
Problem-solver; Seek out challenges because you are energized by finding solutions; Solving the hard problems delivers the biggest impact
What They're Looking For.
Must Have
3+ years in platform/infra engineering, 2+ years operating Kubernetes in production at multi-cluster, multi-region scale, Hands-on knowledge of Kubernetes internals and operations, including control plane components, etcd health, scheduling, HPA/VPA, Cluster Autoscaler, and upgrade strategies, Experience in Go and Python for building operators, controllers, CLI tools, and automation, Expertise in cloud networking and service connectivity, including CNI, Ingress/Gateway API, Istio, and observability stacks like Prometheus and Grafana
Nice to Have
Multi-cloud operations across AWS/GCP/Azure including EKS/GKE/AKS, hybrid/on‑prem setups, and experience in sovereign or regulated environments, Experience with performance, storage, and networking at scale, including kernel tuning, backup/restore/DR, eBPF/Cilium, and zero trust implementation, Contributions to CNCF/open source projects or published technical talks and papers
What You'll Do.
Own architecture and lifecycle of multi-tenant Kubernetes clusters across public and sovereign environments
Deliver 99.999% uptime with multi-region HA
and security hardening
Build and automate platform capabilities
Define standards for networking
and multi-tenancy isolation
Lead observability and performance initiatives to drive cost efficiency and manage SLOs
Drive supply chain and runtime security
Operate safe CI/CD rollouts with automated change management
Troubleshoot complex production issues across control and data planes
Lead incident postmortems
Evaluate emerging technologies
How You'll Work.
Team & Collaboration
Build high-performing teams; Collaboration; Mentor engineers
Communication Scope
Transparency; Constructive, honest debate
Applying for this Sr. Platform Engineer role?
Most applicants get filtered before a human reads their resume. See if yours makes the cut.
How to Apply on Greenhouse
- Create a Greenhouse profile before applying — it saves time across multiple applications.
- Upload your resume as a PDF; the parser handles it better than Word.
- Answer all knockout questions carefully — wrong answers auto-reject before a human sees you.
- Enable email notifications to track application status in real time.
ANONYMOUS · UNFILTERED
What do employees actually say about Zscaler?
Real rants from real employees. Read before you apply.