Roblox
Senior
Build the service mesh powering Roblox's hybrid Cloud Bursting infrastructure
Roblox's Application Networking team is hiring a senior engineer for the Service Mesh team to build the networking fabric behind Cloud Bursting — letting core services transparently burst from on-prem data centers to the cloud. You'll own service mesh integration with Kubernetes (sidecar injection, mTLS, traffic policies, observability) and be a primary escalation point for Envoy/Istio issues at billions-of-requests scale.
Step into this interview
Free · a live voice mock calibrated to this exact role
What this interview tests
- Service mesh architecture (Istio/Envoy/Consul/Linkerd) and sidecar tradeoffs
- Multi-cluster, multi-region traffic management and service discovery
- Kubernetes networking model and production operations
- Envoy proxy internals and xDS control plane APIs
- mTLS, traffic policies, and observability at scale
- On-call incident response and reliability-first mindset
Common question themes
Design a service mesh for hybrid on-prem + cloud bursting
Debug a production mTLS or sidecar injection failure
Explain Envoy xDS control plane architecture
Tradeoffs of sidecar-based mesh vs. alternatives at scale
Mentoring junior engineers on mesh/networking best practices
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