PhantomCode is the only AI interview preparation tool that practices with you AND helps you in the real interview. Unlimited mock rounds, role-tier-specific question banks, behavioral STAR drills, and live-mode coaching when the real round happens.
Run as many practice rounds as you want — DSA, system design, behavioral, case. The assistant grades you against a rubric, not just a yes/no.
L3, L4, L5, L6, L7. SDE, SDE-II, Senior, Staff, Principal. The right question difficulty for the level you're targeting — not generic 'interview questions' lists.
Most candidates fail behavioral by being too long or too vague. The assistant times you, scores your structure, and rewrites your answers when they're not tight enough.
L5+ design rounds are won on the follow-ups. The assistant simulates a senior interviewer poking at your design, surfacing the tradeoffs you'll be asked to defend.
Practice in Python, JavaScript, TypeScript, Java, C++, C#, Go, Rust, Swift, Kotlin, Ruby — with idioms and standard-library awareness for each.
After 10–15 drills the assistant tells you exactly where you're losing points — sliding window, graph BFS, DP-on-trees, behavioral specificity — and serves drills that close those gaps.
30 days is the standard prep window for a FAANG onsite. Here’s how to structure it with PhantomCode.
Two-pointer, sliding window, BFS/DFS, DP-on-arrays, DP-on-trees, segment trees. 3–4 drills per pattern.
45-min timed mocks with random pattern mix. The assistant grades latency, correctness, and explanation quality.
4–5 design drills per week, each followed by an adversarial follow-up round simulated by the assistant.
Map 15–20 stories to 5–6 universal prompts. The assistant rewrites for STAR-conciseness.
Run a complete onsite simulation — 5 rounds back to back. Most candidates skip this. It’s the highest-leverage day.
Deeper plan: FAANG 30-day roadmap. For busy engineers: tech-interview prep checklist.
An AI interview preparation tool is software that runs simulated interview rounds, grades your answers, identifies weak topics, and (in PhantomCode's case) carries the same coaching into the real interview when it happens.
LeetCode and HackerRank give you problems. PhantomCode is a coach — it grades how you explain the solution, the structure of your answer, and the time you take. It also covers behavioral and system design, which LeetCode and HackerRank don't.
Yes. Behavioral STAR practice with structured feedback is one of the highest-used modes. PhantomCode grades story length, specificity, and impact-statement clarity.
30 days is the standard FAANG onsite prep window. Shorter prep (7–14 days) works for non-FAANG mid-tier interviews. The tool adapts the drill mix to your remaining time.
Yes. PhantomCode's mock mode and live mode are the same model — your prep transfers directly. The assistant is invisible to screen recording during the real round.
Run an AI mock interview right now — same coach that runs in your real round.
Try a mock interviewDownload now — invisible, undetectable, and works on every platform. Plans start at $19.