Platform & Developer Experience
Building track
Kubernetes 38% · IaC 19%
3 · Infrastructure & Cloud Platform Engineer
The substrate everything else runs on. The closest thing to a classical engineering role in this family.
What the job actually is
You build and run the compute, network and storage layer that product teams deploy onto — clusters, provisioning, networking, identity, multi-tenancy and the cost of all of it. Unlike SRE this is predominantly build work rather than operate work, and unlike archetype 4 your customer is the system rather than the developer.
Titles this hides behind
Infrastructure EngineerSoftware Engineer, Infrastructure
Cloud Infrastructure EngineerPlatform Engineer
Core Infrastructure EngineerKubernetes Orchestration Engineer
Security Infrastructure Engineer
Prepare like this
- Know Kubernetes past the manifest. Scheduler behaviour, admission control, what actually happens on a node under memory pressure, and why your pod is pending. Interviewers probe the layer below the one candidates studied.
- Be fluent in one cloud and conversant in a second. All three sit at roughly 50% of postings, so the credible position is depth plus translation, not claimed parity across three.
- Bring a migration story. Something moved, with the rollback plan you prepared and whether you used it.
- Learn the cost dimension — only 5% of postings name FinOps, but it comes up in nearly every senior conversation because it is how platform teams justify themselves.
- Go matters here at 35%, more than anywhere else in either family.
Be ready for
- "Design multi-tenant isolation for untrusted workloads." Namespaces are the wrong first answer. They want to hear about the kernel boundary.
- "Your Terraform apply would delete a production database. How did your process let that happen?" Plan review, state management, and blast-radius control.
- "Cut cloud spend 30%. Where do you look first?"
Compensation
United States — base$165k – $280kSits at the corpus median and above.
India — total₹25L – ₹55LEstimated.
What this role tests
Themes, and where to learn them
These chapters are shared across every role that tests them, so preparation here compounds rather than being spent once.
Design under constraintThe decisive round for SRE, AI Platform, Infrastructure — and the reason strong engineers fail it.READ THE CHAPTER →Latency and cost arithmeticThe one piece of maths that is genuinely counterintuitive — and it comes up in every agent interview.READ THE CHAPTER →
Practice questions across all themes → · Back to Platform & Developer Experience →