Apollo Client vs React Relay: Staff Frontend Decision Guide
A staff-level comparison of Apollo Client and React Relay, including when to choose each, frontend architecture tradeoffs, hook patterns, caching, errors, and interview-ready answers.
A staff-level comparison of Apollo Client and React Relay, including when to choose each, frontend architecture tradeoffs, hook patterns, caching, errors, and interview-ready answers.
A staff-level comparison of Apollo Client and React Relay, including when to choose each, frontend architecture tradeoffs, hook patterns, caching, errors, and interview-ready answers.
A staff-level comparison of Apollo Client and React Relay, including when to choose each, frontend architecture tradeoffs, hook patterns, caching, errors, and interview-ready answers.
Key points to highlight when designing a real-time chat app frontend for a staff-level interview
Staff-level frontend system design guide covering requirements, entities, APIs, streaming, state management, rendering performance, reliability, accessibility, and frontend scale.
Staff-level framework for choosing SQL vs NoSQL vs time-series databases, with Model Foundry examples and tradeoffs.
Staff-level full-stack and agentic system design for an assistant that answers questions about campaigns, audiences, content, and customer journeys, then executes approved actions.
A staff-level leadership story about building EngX as a reusable internal platform for authentication, shared components, accessibility, performance, and seamless upgrades.
End-to-end frontend and backend system design for an enterprise Q&A and action-taking copilot that exposes existing internal APIs through MCP.
A detailed interview narrative for explaining how I led feature drift detection from ambiguous product needs to a scalable production system.
Staff-level frontend system design guide for diagnosing and fixing poor LCP, INP, and memory usage on a -style web app.
A staff-level frontend system design interview guide for building scalable light/dark mode architecture with persisted user preferences, design tokens, accessibility, and trade-off analysis.
Staff-level system design for a durable, fair, isolated, real-time CI/CD workflow execution platform similar to GitHub Actions.
Google calendar component architecture and request flow
Comprehensive GraphQL interview preparation guide with staff-level explanations, examples, system design prompts, and evaluation rubrics.
Comprehensive GraphQL interview preparation guide with staff-level explanations, examples, system design prompts, and evaluation rubrics.
Comprehensive GraphQL interview preparation guide with staff-level explanations, examples, system design prompts, and evaluation rubrics.
Staff Frontend Engineer interview story covering Relay-style GraphQL usage, useLazyLoadQuery, usePreloadedQuery, useFragment, object-return errors, and GraphQL vs REST tradeoffs.
Staff Frontend Engineer interview story covering Relay-style GraphQL usage, useLazyLoadQuery, usePreloadedQuery, useFragment, object-return errors, and GraphQL vs REST tradeoffs.
Staff Frontend Engineer interview story covering Relay-style GraphQL usage, useLazyLoadQuery, usePreloadedQuery, useFragment, object-return errors, and GraphQL vs REST tradeoffs.
Staff-level frontend system design guide for a Stripe-like live payment, webhook, and alert monitoring dashboard: transport, ingestion pipeline, backpressure, virtualization, and reconnect strategy.
Staff-level system design for a conversational AI agent that reuses Model Foundry metrics APIs to answer questions, detect unhealthy models, explain anomalies, and recommend approved actions.
Staff-level frontend system design guide for a real-time notification system: requirements, architecture, data model, multi-device consistency, and reconnect/failure handling.
Interview-ready frontend and backend system design for an online chess playing platform using single-writer game ownership, WebSockets, server-authoritative clocks, event sourcing, and async downstream processing.
Staff-level system design for a code/text sharing platform
Staff-level frontend system design checklist for an Instagram-style photo-sharing app interview
Checklist and framework for tackling a staff-level Pinterest-style frontend system design interview
Staff-level frontend system design guide for building and discussing a poll widget in interviews
Staff-level guide to choosing between React.memo, useMemo, useCallback, useDeferredValue, startTransition, useSyncExternalStore, Web Workers, and requestAnimationFrame based on the actual bottleneck.
Staff-level interview guide for designing an accessible, responsive, performant, and internationalized calendar date-picker.
Staff-level frontend system design guide for a shared, headless DataGrid / List / Card platform used by many product teams.
Staff-level frontend system design guide for building a rich-text editor (Notion/Google-Docs-style): document model, selection, input handling, formatting, undo/redo, collaboration, and performance.
Staff-level interview guide for designing, building, distributing, and operating a cross-framework component library with Stencil.js, including a comparison with Lit.
Staff-level frontend system design guide for a scalable sprint dashboard with strong performance and reliability.
High level design system for SPV
High level system design for SPV webhook
Interview-ready leadership story and technical playbook for using GraphQL directives such as @include and @skip to conditionally load frontend modules with Apollo Client.
Interview-ready leadership story and technical playbook for using GraphQL directives such as @include and @skip to conditionally load frontend modules with Apollo Client.
Interview-ready leadership story and technical playbook for using GraphQL directives such as @include and @skip to conditionally load frontend modules with Apollo Client.
Staff-level frontend interview preparation tailored to MLOps observability, reusable EngX components, frontend reliability, performance, accessibility, and cross-functional leadership.
Staff-level frontend system design guide for a reusable tooltip system: CSS-only vs React/portal implementations, positioning/collision logic, accessibility, mobile design, and performance.
Staff-level frontend system design checklist for Airbnb-style travel booking interviews