Interview Practice

Virtual DOM, CORS, browser rendering, accessibility, and performance questions every frontend candidate faces.

Database indexing, race conditions, API versioning, REST vs gRPC, and scaling patterns for backend roles.

Client vs server logic, end-to-end feature walkthroughs, and cross-stack trade-off discussions.

iOS/Android lifecycle, offline state, React Native vs Flutter, and mobile-specific performance questions.

Blue-green deployment, infrastructure as code, CI/CD pipelines, and deployment risk reduction.

SLOs, error budgets, incident response, toil reduction, and chaos engineering concepts.

Unit vs integration vs E2E tests, flaky tests, test plans, and shift-left quality practices.

ETL vs ELT, data lineage, pipeline reliability, streaming, and modern data stack vocabulary.

Model drift, precision vs recall, feature engineering, and explaining ML to non-technical stakeholders.

OWASP Top 10, threat modelling, incident response, zero-trust, and security trade-off discussions.

Complex system design walk-throughs, conflicting requirements, and communicating trade-offs to executives.

Scope creep, sprint planning, backlog prioritisation, and stakeholder communication language.

Diatáxis framework, SME interviews, documentation quality measurement, and tutorial vs guide distinctions.

Smart contract execution, reentrancy attacks, consensus mechanisms, and ZK rollup security.

RAG systems, LLM evaluation in production, prompt injection defence, and fine-tuning vs retrieval.

Game loop architecture, ECS pattern, client-side prediction, mobile draw call optimisation, and delta time.

RTOS vs bare metal, interrupts/ISR, hard fault debugging, OTA update risks, and power optimisation.

Slow query investigation, clustered indexes, HA replication, ACID transaction isolation, and PITR.

Missed sprint goals, disengaged Product Owner, impediment removal, and retrospective facilitation.

Managing low performers, tech debt vs features, team scaling, and engineering performance reviews.

Scope creep in requirements, MoSCoW prioritisation, complex use case documentation, and stakeholder alignment.

HA multi-region design, shared responsibility model, cost optimisation, and zero-trust architecture.

BGP session establishment, OSPF vs BGP, routing troubleshooting, VXLAN encapsulation, and SD-WAN.

Explaining your process, handling scope changes, late requirements, rate negotiation, and project walk-throughs.