Security Engineer Interview Prep
An interview prep path for security engineering loops. Deep on application and web security (OWASP, authn/authz, crypto), grounded in the network and OS fundamentals attacks exploit, extended into cloud and container security, with system-design rounds viewed through a security lens and the behavioral themes that screen for ownership under pressure.
Application and web security
The core of most security loops: OWASP categories, injection classes, authentication/authorization, session and cookie hardening, and applied cryptography. This is where to spend the most time.
Systems and network foundations
You can't reason about attacks without the substrate they run on. Anchor how the OS isolates processes and how the network moves and filters packets.
Cloud and container security
Modern security work is cloud and container security: IAM least privilege, secrets, metadata-service hardening, and workload isolation in Kubernetes.
System design through a security lens
Security engineers are asked to design defensively - rate limiting and abuse prevention, safe data flows, and detection. Walk these with threat modeling in mind.
- 01DesignDesign a Rate Limiter (API Throttling)System Design · Medium
- 02DesignDesign a Distributed Cache (Memcached / Redis Cluster)System Design · Hard
- 03DesignDesign a Payments / Checkout System (Stripe-style)System Design · Hard
- 04DesignDesign an Observability Platform (Metrics, Logs, Traces)System Design · Hard
Behavioral: ownership under pressure
Security behavioral rounds screen for incident ownership, going deep on root cause, and acting under ambiguity. Bring stories with concrete risk and impact.
Browse other learning paths
Three role-targeted paths are live: Backend, SRE / DevOps, and ML Engineer. More are on the way - if you have a role you want covered, let us know.
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