Built for people serious about landing competitive software, data, ML, and quant roles.
Most platforms teach you to solve problems. Nobi teaches you to solve problems the way interviewers evaluate them. Practice thinking out loud, get real-time feedback on your communication, and master the skills that actually matter in technical interviews.
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The biggest difference between passing and failing technical interviews isn't just solving the problem—it's how you communicate your thought process. Nobi Interviewer simulates a real interview experience where you practice articulating your approach, thinking through problems out loud, and getting feedback on your communication style.
Voice & text communication: Practice speaking your thought process as you code, just like in real interviews. Get feedback on clarity, structure, and how well you explain your approach.
Interviewer-style feedback: Learn how interviewers actually evaluate candidates. Get guidance on what to emphasize, how to structure your explanations, and how to demonstrate strong problem-solving communication.
A curated question bank covering coding, SQL, machine learning, system design, and technical reasoning. Each question is designed to build core concepts and problem-solving frameworks, not memorization.
Train how interviewers evaluate your reasoning, not just whether the final answer is correct.
Get instant hints, explanations, and answers to your questions without spoiling the solution. Nobi guides you toward the right approach while helping you understand the underlying concepts and how to communicate your thinking.
This teaches how interviews are evaluated: Learn not just what the answer is, but why it's the right approach and how interviewers assess your problem-solving process and communication.
Practice technical questions with real-time feedback to help you structure answers,
clarify your thinking, and communicate clearly under interview pressure.
Backend Engineer
Focused on APIs, system design, scalability, and backend problem-solving.
Data Analyst
Focused on SQL, data analysis, and turning results into clear, actionable insights.
Data Engineer
Emphasizes SQL, data pipelines, and practical system design scenarios.
Data Scientist
Focused on SQL, statistics, and explaining analytical decisions clearly.
Deployment Strategist
Blends technical reasoning, business context, and clear communication in applied problem-solving interviews.
DevOps Engineer
Centered on infrastructure, reliability, and operational decision-making.
Frontend Engineer
Tailored to frontend logic, UI architecture, and communication around tradeoffs.
Full Stack Engineer
A broad track covering frontend, backend, and system design interviews.
Machine Learning Engineer
Balances ML fundamentals with system design and applied modeling questions.
Product Manager
Covers product sense, execution, and behavioral interviews common to PM roles.
Quantitative Researcher
Designed for probability, math, and structured problem-solving interviews.
Software Engineer
A well-rounded track covering coding, system design, and behavioral interviews.
Practice behavioral questions with personalized feedback that evaluates your answers using the STAR method. Get specific guidance on structure, clarity, and how to demonstrate the qualities interviewers are looking for.
Practice behavioral interview questions to improve your storytelling, communication, and ability to articulate your experiences.
Upload your resume, your role, and practice technical questions tailored to your experience, focused on clear explanations and decision-making.
Read our latest articles and insights on interview preparation, tech industry trends, and career growth.
Nobi brings your entire interview prep workflow into one focused platform so you can spend less time organizing and more time improving.
Get the right plan for your interview prep journey. Plans can be upgraded or downgraded at any time.
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Built by Engineers Who Understand Interviews
Nobi is built by engineers and data scientists who've been on both sides of technical interviews—as candidates and interviewers. We focus on how interviews are actually evaluated, so you're practicing skills that matter, not just memorizing solutions.