Mid
Build the data-plane infrastructure behind Google Cloud's NAT gateways (PSC, Cloud NAT)
Own core data-plane software for Google Cloud's Andromeda network stack, focused on NAT-based products like Private Service Connect and Cloud NAT. This role sits at the intersection of systems programming and large-scale networking, with production on-call responsibility for a service that gates traffic for enterprise customers in 200+ countries.
Step into this interview
Free · a live voice mock calibrated to this exact role
Likely format
Typical Google SWE loop: phone screen(s) with coding, followed by an onsite/virtual onsite with multiple rounds covering coding, system design/googleyness, and behavioral (this JD does not itself specify a format).
What this interview tests
- Cloud networking data plane (NAT, PSC)
- Systems programming in C++ / Unix-Linux internals
- Large-scale distributed systems design
- Production on-call and incident troubleshooting
- Networking protocols (TCP/IP, load balancers, SDN)
Common question themes
Design a scalable NAT gateway component
Debugging a kernel/user-space networking issue
Tradeoffs in optimizing a cloud networking datapath
Handling a production packet-latency incident on-call
Data structures & algorithms coding problem
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