Practice your way to the top — earn badges recruiters trust.
Free AI mock interviews built from the real questions companies ask. Practice up to 3 times a month, pass one real test, and earn a verified skill badge that makes your profile shine.
From practice to badge in four steps
Set it up once, then turn monthly practice into proof recruiters can see.
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Step 1
Set your preferences
Pick your role, skills, and target companies. We tailor every question set to the exact jobs you want — no generic quizzes.
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Step 2
Attempt up to 3 mock tests / month
Warm up risk-free. Get instant AI feedback and a confidence score after every attempt, so you walk in knowing your weak spots.
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Step 3
Give 1 real test / month
When you're ready, take the proctored real test. One serious attempt a month keeps your badge credible to recruiters.
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Step 4
Earn an exclusive skill badge
Pass and a verified skill badge lands on your profile — the proof recruiters trust over another line on a CV.
A badge is proof — not just a claim
Recruiters skim hundreds of profiles. A verified skill badge is the signal that gets you read, ranked, and shortlisted first.
Your profile shines to recruiters
Verified badges make your profile stand out in recruiter search and rank you above unproven candidates for the same role.
Prove your skills, don't just claim them
Anyone can list 'React' on a resume. A passed skill test is independent proof — the difference between saying and showing.
Higher shortlist odds
Badged candidates get noticed first. Recruiters filter for verified skills, so a badge moves you straight to the shortlist.
Walk into interviews calm
After mock rounds built from real questions this company asks, the live interview feels like one you've already aced.
Improve with every attempt
Instant AI coaching pinpoints exactly what to fix — turn three monthly mock tests into measurable, week-on-week progress.
Credibility you keep forever
Earned badges stay on your profile and travel with every one-click application — proof that never expires.
Explain how you'd prevent unnecessary re-renders in a large React list.
Cover memoization, keys, and windowing — give a concrete example.
Solid structure. Add a windowing example (react-window) to push past 90%.
How AI mock interviews work
An AI mock interview is a simulated interview where AI asks you real, role-specific questions, evaluates each answer, and gives instant feedback on structure, relevance, and confidence. It's a tireless practice partner: rehearse HR, technical, and behavioral rounds as many times as you need, see exactly where each answer falls short, and fix it before the real interview.
On OnJob.io you get 3 mock tests and 1 real test every month free. Questions are drawn from what companies actually ask, and passing a real test earns a verified skill badge — proof recruiters can see before they open your resume.
Start a free mock testWhat the AI scores on every answer
- Structure. Is the answer organized — STAR for behavioral, clear reasoning for technical?
- Relevance. Does it actually address the question and the skills the role needs?
- Depth. Concrete examples, trade-offs, and detail — not surface-level statements.
- Confidence. Pacing and clarity, so you sound sure of yourself under pressure.
The 4 interview rounds — and how to prep each
Most India tech and corporate hiring runs through these. Practice the ones your target company uses.
| Round | What it asks | How to prep |
|---|---|---|
| HR / screening | Tell me about yourself, why this role, notice period, salary expectations, gaps. | A tight 60-second pitch, honest gap answers, and researched salary range. |
| Technical / coding | DSA, language and framework questions, debugging, live problem-solving for your stack. | Drill core data structures, your language, and timed problems out loud. |
| Behavioral | ‘Tell me about a time you…’ — conflict, failure, leadership, deadlines. | 4–5 STAR stories with measurable results you can adapt on the fly. |
| System design | Design a scalable system (feed, URL shortener, chat) — for senior/backend roles. | Practice requirements → high-level design → data model → trade-offs out loud. |
How to prepare for an interview
Five steps to walk in confident — practice with feedback, not just repetition.
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Research the role
Re-read the JD, study the company and product, and list the exact skills they'll test.
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Map the rounds
Figure out which rounds you'll face — HR, technical, behavioral, system design — and prioritize.
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Practice with feedback
Run AI mock interviews per round, get scored on structure and confidence, fix weak answers.
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Prep STAR stories
Write 4–5 strong situation-task-action-result stories you can adapt to any behavioral question.
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Full timed mock + badge
Do a full mock under real conditions, then pass one real test to earn a verified skill badge.
Interview prep by role
What to expect — and where to focus — for the most-applied-for roles in India.
Software / full-stack
Heavy DSA + your stack (React, Node, Java, Python). Expect 2–3 coding rounds and one design discussion.
Data / ML
SQL, Python, statistics, and case-style problems. Be ready to explain a project end to end with metrics.
Product / project manager
Product sense, prioritization, metrics, and behavioral. Practice structuring ambiguous problems out loud.
Freshers
Fundamentals, projects, and aptitude. Lead with what you built and the exact technologies you used.
Frequently asked questions
Everything you need to know before you create your free profile.
Create My Free Profile What are OnJob.io mock tests and skill badges?
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Mock tests are free AI-powered practice interviews built from the real questions companies ask for your target role. After a proctored real test you earn an exclusive skill badge — verified proof of a skill that sits on your profile and ranks you higher in recruiter search.
How many mock tests and real tests can I take?
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You can attempt up to 3 mock tests every month to practice and improve, plus 1 real (proctored) test per month. Limiting real tests to one a month is what keeps every earned badge credible to recruiters.
Are mock interview tests free?
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Yes. Mock tests and skill badges are free to start on OnJob.io — create your free profile, set your preferences, and start your first mock test in under a minute. No credit card required.
How does the confidence score work?
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After each mock test our AI scores your answers on accuracy, structure, and clarity, then returns a confidence score plus specific coaching on what to improve before your next attempt — so you know exactly where you stand.
Do skill badges actually help me get hired?
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Yes. Recruiters filter and rank candidates by verified skills, so a badge moves you onto the shortlist faster than an unproven profile. Combined with mock-interview practice, OnJob.io candidates report 3.1× more interview calls.
What is an AI mock interview?
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An AI mock interview is a simulated job interview where AI asks you real, role-specific questions, listens to or reads your answers, and gives instant feedback on structure, content, and confidence. It works like a tireless practice partner: you can rehearse HR, technical, and behavioral rounds as many times as you need, see exactly where each answer falls short, and improve before the real thing — without scheduling a human.
Is the OnJob.io mock interview free?
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Yes. On the Free plan (₹0/month) you can take up to 3 mock tests and 1 real (badge-earning) test every month — no credit card. The mock tests are built from the real questions companies ask, and the real test earns a verified skill badge recruiters trust. Pro (₹99/month) unlocks more attempts and deeper analytics.
How do AI mock interviews actually work?
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Pick a role or skill, and the AI serves questions drawn from real company interviews. You answer, and it scores each response for structure, relevance, and confidence, then suggests a concrete improvement (for example, 'add a windowing example' or 'use the STAR method here'). Practice up to 3 times a month, then pass one real test to earn a verified badge on your profile.
How do I prepare for an interview in a week?
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Spend day one researching the company and role and re-reading the job description. Days two to four, drill the three core rounds — HR/behavioral with the STAR method, technical/coding for your stack, and role-specific scenarios — using mock interviews so you get feedback, not just practice. Days five to six, do timed full mocks under real conditions. Day seven, rest, prep your questions for them, and review your strongest stories.
What types of interview rounds should I practice?
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Most India tech and corporate hiring runs through four round types: HR/screening (about you, motivation, salary, availability), technical/coding (DSA, language, and tool questions for your role), behavioral (past situations answered with the STAR method), and — for senior or backend roles — system design. OnJob.io has mock tests for each so you can practice the rounds your target company actually uses.
What is the STAR method for behavioral interviews?
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STAR stands for Situation, Task, Action, Result. You frame each behavioral answer by setting the scene (Situation), explaining your responsibility (Task), describing what you specifically did (Action), and ending with a measurable outcome (Result). It keeps answers concrete and concise — and OnJob.io's mock interviews flag when an answer is missing the Result.
How many mock interviews should I do before the real one?
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Aim for at least 5–8 focused mock attempts per round type before a real interview — enough to make your core stories automatic and tighten weak answers. Because OnJob.io scores every attempt, you can stop guessing and practice specifically the questions you keep scoring low on.
Will practicing here help me with real company interviews?
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Yes. The questions are modeled on what real companies ask, and the feedback targets the same things interviewers grade: clarity, depth, structure, and confidence. Candidates who practice and earn a verified skill badge report 3.1× more interview calls, because the badge is proof recruiters can see before they even open your resume.
Practice with real interview questions
Deep guides with the exact questions companies ask — pair them with your mock tests.
Practice today. Get shortlisted tomorrow.
Create your free profile and start your first mock test in under a minute. Free to start, no credit card required.