Interviews
Vector
Prepare
The Interview Guide
The complete guide to Senior, Staff & Principal interviews — what's tested, by level, and how to prepare.
Readiness Score
A role-calibrated score for your Senior, Staff, or Principal interview — and what to study next.
Companies
12 company-specific Staff/Principal loops.
Problems Catalog
22 canonical system design problems with deep dives.
Architecture Judgment
75 Staff and Principal system design decisions with interview rubrics.
Decision Guides
SQL vs NoSQL, REST vs gRPC, Kafka vs RabbitMQ — the verdict, framework, and follow-ups.
Cheatsheets
Latency numbers, Big-O, capacity math, consistency models — the figures a senior keeps on reflex.
20-Minute Warm-Up
The judgment moves and reflexes to skim right before an interview.
Playbook
12 cross-cutting patterns Staff candidates must know.
Resources
Books, courses, mocks, negotiation reading.
AI Architect
AI/ML Interview Hub
Canonical ML, LLM, RAG, agents, MLOps, and production interview answers.
Overview
The self-directed AI Architect track.
Architecture Studio
Design AI systems on a canvas with live cost + AI review.
Skill Matrix
Self-assess 49 skills across 8 domains.
Assessments
10 architect-level quizzes with rationale.
Career Ladder
AI Engineer → Principal Architect, level by level.
Resources
Curated papers, books, and blogs.
Courses
Production AI Systems
The Staff Engineer's Playbook — LLM & ML system design.
Distributed Systems in Practice
The Senior Engineer's Field Manual — 10 modules, runnable code.
Learn
Languages & frameworks
Python
Semantics, data model, asyncio, performance, and production reasoning.
React
Rendering, state, effects, performance, accessibility, and frontend architecture.
Java
Core Java, JVM, concurrency, and production engineering.
JavaScript
Language mechanics, asynchronous patterns, and coding challenges.
Angular
Signals, RxJS, change detection, debugging, and architecture.
Data & architecture
Data Science
Statistics, experimentation/A-B testing, product analytics, and case studies.
SQL
Query reasoning, execution plans, performance, and database engineering.
System Design
Architecture patterns, scaling trade-offs, and worked interview systems.
Supporting resources
Academy
Structured learning paths and guided curricula.
Blog
Technical explanations, examples, and engineering notes.
Tools
Roadmap Generator
Personalized prep plan for your target role + company.
Resume Analyzer
AI feedback on your resume.
AI Interview
Live AI mock interview.
Radar
My Progress
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