Curated Staff+ interview question bank — Java, system design, Kafka, AI/GenAI, behavioral, EM/Architect.
→ Live study UI — search, filter by track, recall mode, two-stage reveal
| # | Track | Questions |
|---|---|---|
| 01 | Java Core | 25 |
| 02 | Concurrency | 7 |
| 03 | Spring / Spring Boot | 12 |
| 04 | Databases & SQL | 10 |
| 05 | Kafka & Streaming | 6 |
| 06 | Distributed Systems | 8 |
| 07 | System Design | 31 |
| 08 | LLD & Design Patterns | 14 |
| 09 | DSA & Coding | 35 |
| 10 | Cloud, DevOps & Observability | 8 |
| 11 | Security | 8 |
| 12 | Behavioral & Leadership | 27 |
| 13 | EM & Architect | 25 |
| 14 | AI / GenAI / Agentic | 33 |
Say this (30s) — one sentence that satisfies the interviewer alone
In plain words — one sentence a smart non-expert understands
Why it works — mechanism + one everyday analogy
Real example — actual numbers, actual scenario
If they push back — three follow-up questions, one-line answers
Remember it as — a single memory hook
Read only as deep as you need. Layer 1 gets you through the interview. Layers 2–4 are for building the intuition that lets you answer follow-ups you haven't seen before.
git clone https://github.com/raphy78626/interview-mastery
node tools/build.mjs # regenerates docs/data.json from questions/**/*.md
open docs/index.html # or: serve the docs/ directoryOr use the live version — no install.
This bank targets the Staff IC and EM/Architect interview loop — not juniors, not generic algorithm questions. The 14 tracks match the loop structure I see at Staff+ levels at companies running multi-round technical loops in 2025–2026.
Track 14 (AI/GenAI/Agentic) is the newest and most under-served — LLM foundations, RAG, agents, evals, agentic architectures — and the gap that costs engineers the most in 2026 loops.
| Project | What it is |
|---|---|
| screenshot-api | MCP server — give AI agents eyes (URL → screenshot) |
| agentic-sdlc-url-shortener | Multi-agent SDLC orchestrator (DAG engine + LLM agents) |
| vigil | Passive QA capture → self-healing Playwright tests |
| atlas | PDF/URL/YouTube → RAG → spaced-repetition cards |
MIT — use freely, adapt for your own prep, attribution appreciated.