Stop practicing in your head. Start getting scored.
Most candidates practice in their head. The ones who get offers practice out loud, get specific feedback, and run mocks until the answers feel natural — not memorized.
LightningHire mock interviews generate questions tailored to a specific company, role, seniority, and interview type, score each answer individually, and show you an improved version. No vague encouragement. No "great answer!" without substance.
What mock interviews actually do
- Generate questions tuned to your exact scenario (company + role + seniority + interview type)
- Score each answer for structure, specificity, relevance, and impact
- Show you an improved version of each answer — in your voice, not a template
- Add every question to your question bank so you can drill the ones you bombed
- Feed analytics so you can see your score trend over time
Free plan: 3 mocks per week. Pro: unlimited. See free vs Pro.
Set up a mock interview
Go to Interview → Mock Interview, or jump straight to https://lightninghire.com/mock/new.
Company and role
Enter the company name and role title. "Stripe — Senior Backend Engineer" produces very different questions than "Acme Corp — Engineer." Be specific.
If you have an interview coming up, configure the mock to match it exactly. Generic "software engineer at a tech company" produces generic questions — and generic prep.
Seniority level
Pick one:
- Intern
- Junior
- Mid-level
- Senior
- Staff
- Principal
- Manager
- Director+
Seniority tunes the expectations. A junior behavioral question might focus on collaboration; a director-level question probes strategic tradeoffs and org-level impact.
Interview type
| Type | What you get |
|---|---|
| Phone screen | Recruiter or hiring-manager warmup questions — motivations, background, role fit |
| Technical | Coding, algorithms, or domain-specific problems |
| Behavioral | "Tell me about a time..." — use this to drill your STAR stories |
| System design | Architecture, scaling, tradeoffs |
| Hiring manager | Role fit, team dynamics, motivation |
| Panel | Mixed styles from multiple interviewers |
| Final round | High-level culture, decision-making, leadership |
Focus areas
Pick from 14 focus areas to narrow the session:
- Data Structures & Algorithms
- Leadership & Management
- Problem Solving
- Communication
- System Design
- Collaboration & Teamwork
- And more
Select multiple for a blended session. For a behavioral round, try Leadership + Communication + Problem Solving together.
During the mock
Questions come one at a time. For each question:
- Read the question
- Type or dictate your answer — speak it out loud if you can
- Submit and move on
There's no timer. Take the time you'd take in a real interview — 60-90 seconds for behavioral, longer for technical.
The gap between "I know what to say" and "I can say it cleanly under pressure" is the whole point of practice. Typing alone skips the practice that matters.
Scoring and feedback
After you finish, you get:
Overall score
One number for the whole session. Track this over time — it's the clearest signal that prep is working.
Per-question scores
Each answer rated on:
- Completeness — did you actually answer what was asked?
- Relevance — did your example match the question?
- Structure — did you use a framework like STAR, or did you ramble?
- Specificity — did you include numbers, names, concrete outcomes?
Improved answer suggestions
For every question, the AI shows how you could've answered better. The key: it preserves your voice. It's not a generic template — it's your answer, tightened.
This is where the learning happens. The AI isn't just saying "be more specific" — it's showing you exactly where to add a number, which filler clause to cut, and how to land the result.
Drilling weak spots
Every question from a mock goes into your question bank. After a session:
- Open the Question Bank
- Sort by weakest
- Star the questions you scored lowest on
- Run a new mock focused on those themes
This is how you turn a 6/10 answer into a 9/10 answer in two weeks.
A realistic weekly rhythm
If you're actively interviewing:
| Day | Session |
|---|---|
| Monday | Behavioral mock — 5 questions at target company + seniority |
| Tuesday | Review mock results, star weak questions, rewrite two STAR stories |
| Wednesday | Technical or system design mock (match your next round) |
| Thursday | Phone-screen mock with hiring-manager focus |
| Friday | Final-round mock — panel type, mixed focus areas |
| Weekend | Rest, or one light behavioral drill |
Free tier covers 3/week. Pro unlocks this full cadence.
Tips that actually matter
Running five behavioral mocks at the same seniority gives you one data point, not five. Mix interview types and seniorities to build range.
Phone screens are conversational. System design is collaborative. Panel interviews jump around. Configure the mock to match what's actually coming.
If you don't internalize the fix, you'll make the same mistake twice. Read the improved answer, then rewrite the relevant STAR story in the Story Builder.
Five mocks in one afternoon doesn't compound. Two mocks spaced out across the week beats five on Sunday night.
Common mistakes
Answering the question you wish they'd asked. The AI catches this immediately. Score drops, relevance flagged. Read the question twice before you start.
Starting with "So basically..." Filler openers tank your structure score. Start with the situation directly.
Skipping the result. Behavioral answers without a measurable outcome get flagged. Even a soft result ("the team shipped on time," "we saved ~15 hours a week") beats no result.
Not taking the hint. If the AI flags "lacked specific metric" on three consecutive answers, that's a pattern. Fix it in your STAR stories before the next mock.
Where to go next
- Build the answer library mocks pull from: STAR stories
- Use the question bank to drill weak spots: question bank
- Get real-time coaching in the actual interview: live sessions
Run one mock today. Not tomorrow. Today.