
Interviewing.io - Detailed Review
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Interviewing.io - Product Overview
Introduction to Interviewing.io
Interviewing.io is a versatile platform that caters to the needs of software engineers and employers alike, focusing on interview preparation and hiring processes.
Primary Function
The primary function of Interviewing.io is to provide a platform where software engineers can practice and improve their technical and behavioral interview skills. Users can book mock interviews with either peers or experienced engineers from top companies like Google and Facebook. This anonymous process allows users to be judged solely on their skills, without any bias related to their resume or background.
Target Audience
Interviewing.io is primarily targeted at software engineers who are looking to enhance their interview skills. The platform is beneficial for engineers of all levels, as it offers various resources such as mock interviews, mentorship sessions, and personalized courses. The audience is predominantly male (73.68%) and falls within the 25-34 age group.
Key Features
- Mock Interviews: Users can choose between free peer-to-peer mock interviews or paid interviews with senior engineers from top tech companies. These interviews cover a range of topics including data structures and algorithms, systems design, machine learning, front-end engineering, engineering management, and behavioral interviews.
- Anonymous Interviews: The platform ensures anonymity during the interview process, allowing users to be evaluated based solely on their performance. Users have the option to “unmask” themselves if they wish to proceed with the hiring process.
- Mentorship Sessions: In addition to mock interviews, users can sign up for mentorship sessions with professionals to discuss specific areas of improvement or career advice.
- Personalized Courses: Interviewing.io offers courses to help users master data structures and algorithms, machine learning, and prepare for specific company interview processes such as those at Google, Facebook, and Amazon.
- Employer Services: For employers, the platform serves as a hiring marketplace where top performers from the mock interviews are fast-tracked for real technical interviews. Employers pay for access to these top candidates, ensuring they get highly skilled engineers.
- Feedback and Improvement: The platform emphasizes providing actionable feedback after each interview, helping users improve their skills and prepare better for real interviews.
Overall, Interviewing.io is a comprehensive tool that helps software engineers prepare for interviews and connects them with potential employers in a fair and predictive manner.

Interviewing.io - User Interface and Experience
User Interface
Interface
- Interviewing.io uses a simple and intuitive interface that focuses on voice interviews, eliminating the need for video. This anonymity feature is a significant draw, as it allows candidates to feel more comfortable and avoids the risk of being recognized by colleagues or other potential employers.
- The platform includes a collaborative editor that can be set to plain text or various programming languages, and it features a diagramming whiteboard. This whiteboard mimics the tools used in real technical interviews, enabling realistic practice sessions.
Ease of Use
- The interface is designed to be straightforward. After a brief introduction, the interviewer will ask if there are specific areas the candidate wants to focus on, and then the interview proceeds in a realistic and structured manner. This setup helps candidates get accustomed to the format of technical interviews at top companies.
- The platform allows users to watch replays of their mock interviews, which is a valuable feature for reviewing performance and identifying areas for improvement. Users can also opt to share their anonymous interviews with other users on the platform.
User Experience
Quality of Interviewers
- The overall user experience is enhanced by the high quality of the interviewers. Interviewing.io has a rigorous screening process for its interviewers, ensuring they are experienced professionals from prestigious tech companies like Google, Amazon, and Facebook. This guarantees that candidates receive feedback and practice with experts who are familiar with the actual interview processes at these companies.
- After each interview, candidates receive immediate feedback and tips from their interviewers. This feedback is also added to an overall dashboard, providing a clear rating from 1-4 and helping candidates track their progress over time.
- The anonymity of the platform extends to the interview process itself, where the interviewer does not have access to any of the candidate’s information, ensuring a bias-free environment.
Additional Features
- Interviewing.io also offers free guides and resources, such as an outstanding system design interview guide, which can be very helpful for candidates preparing for technical interviews.
- The platform integrates a jobs portal where candidates who perform well in mock interviews can gain access to warm introductions to hiring decision-makers at top companies, potentially leading to actual job interviews without the need for traditional application processes.

Interviewing.io - Key Features and Functionality
Key Features of Interviewing.io
Anonymous Mock Interviews
Interviewing.io offers anonymous mock interviews, which allow software developers to practice their interview skills without the pressure of knowing their interviewer’s identity. This feature ensures honest feedback from both candidates and interviewers, as they do not see each other’s feedback until they have submitted their own.
Technical Interviews with Experienced Engineers
The platform connects candidates with experienced engineers from top companies like Google, Facebook, and Apple. These interviews simulate real technical interviews, covering topics such as data structures, algorithms, and systems design. This helps candidates prepare for actual interviews at leading technology companies.
One-Way Video Interviews
Interviewing.io provides one-way video interviews, which assess candidates’ technical and behavioral skills. This feature is particularly useful for employers looking to evaluate candidates in a more comprehensive manner.
Performance-Based Candidate Shortlisting
The platform uses data from mock interviews to shortlist candidates based on their performance. This helps employers find skill-fit job seekers more efficiently by matching them with candidates who have performed well in rigorous live tech interviews.
Interviewer Rating System
Interviewing.io has a rating system for interviewers, which ensures that the best interviewers are prioritized. After each interview, feedback is collected from both candidates and interviewers, and interviewers are rated based on this feedback. This system helps maintain the quality of the interviews and ensures that top-rated interviewers conduct the majority of the practice interviews.
Access to Top Performers for Employers
Employers can pay for access to the top performers identified through the mock interviews on the platform. This feature helps employers hire better candidates by leveraging the data and performance metrics gathered from the mock interviews.
AI Integration
While Interviewing.io does not explicitly use AI to generate questions or conduct interviews, it leverages data and feedback mechanisms to improve the interview process. The platform’s focus is on providing realistic and valuable feedback from experienced engineers, rather than relying on AI-generated content. The interviewer rating system and the algorithm for scheduling interviews based on interviewer ratings are examples of how data is utilized to enhance the quality of the interviews.
In summary, Interviewing.io is a valuable tool for both job seekers and employers, offering realistic mock interviews, anonymous feedback, and a performance-based shortlisting system, all of which contribute to a more effective and fair hiring process.

Interviewing.io - Performance and Accuracy
Performance of Interviewing.io
Interviewing.io demonstrates strong performance in several key areas, particularly in preparing engineers for technical interviews at top tech companies.Calibration and Accuracy of Interviewers
One of the standout features of Interviewing.io is its interviewer rating system. The platform ensures that its interviewers are well-calibrated by comparing their ratings of candidates in mock interviews to the candidates’ actual performance in real interviews. This system uses a -4 to 4 scale to measure accuracy, with 0 indicating well-calibrated interviewers. Interviewers who are too strict or too lenient are identified and receive feedback or warnings, and those who consistently underperform are paused from conducting interviews.Predictive Value of Mock Interviews
The mock interviews on Interviewing.io are highly predictive of a candidate’s performance in real technical interviews. Top performers on the platform are three times more likely to pass technical interviews at top-tier companies compared to candidates from other sources. Even passing a single interview on Interviewing.io is associated with a 32% increase in the chance of working at a FAANG company.Candidate Experience
Interviewing.io also prioritizes candidate experience by monitoring and improving the feedback given by interviewers. The platform sets a threshold for candidate attrition and encourages interviewers to improve their performance if they fall below this line. This approach helps maintain a positive experience for candidates while ensuring that feedback is honest and constructive.Expert Coaches and Anonymity
The platform boasts a roster of expert coaches from prestigious tech companies, which is a significant advantage. These coaches have conducted at least 20 interviews at FAANG or similar companies and undergo trial interviews to ensure they meet the required standards. The anonymity feature is also appreciated by candidates, especially those who prefer to keep their job search private.Limitations and Areas for Improvement
Cost and Accessibility
One of the main drawbacks is the cost; mock interviews start at $225, which is significantly more expensive than many competitors. Additionally, there is often a waitlist for sign-ups, which can be inconvenient for those needing immediate interview coaching.Limited Scope
Interviewing.io focuses primarily on coding and system design interviews, which may not be suitable for candidates looking for other types of mock interviews, such as behavioral or product interviews.Lack of Mentor Choice
Candidates cannot choose their own mentors; instead, they must request a coach from a specific company and rely on Interviewing.io to make the match. This lack of control might be a disadvantage for some users.Dependence on Data Quality
The accuracy of the interviewer rating system and the predictive value of mock interviews depend heavily on the quality and quantity of data available. Ensuring that the data is objective and free from biases is crucial for the system’s effectiveness.Engagement and Factual Accuracy
Interviewing.io enhances engagement by providing a dashboard where interviewers can see their “candidate experience” and “accuracy” scores in near-real time. This transparency helps interviewers understand their performance and make necessary improvements. The platform also shares the logic behind the scoring system, which builds trust within the interviewer community. In terms of factual accuracy, the platform relies on outcome data from real interviews to calibrate its mock interview feedback. This approach ensures that the feedback and ratings are based on actual performance metrics rather than subjective opinions. Overall, Interviewing.io is a solid option for experienced engineers looking to improve their technical interview skills, but it may not be the best fit for everyone due to its cost, limited scope, and lack of mentor choice.
Interviewing.io - Pricing and Plans
Pricing Structure
The pricing structure of Interviewing.io is relatively flexible and catered to different needs, particularly for individuals preparing for technical and behavioral interviews.Free Options
Interviewing.io offers free mock interviews where users can practice with peers. This option allows for unlimited mock interviews, providing a valuable resource for those who want to hone their skills without incurring costs.Paid Options
For those seeking more advanced feedback, Interviewing.io provides paid mock interviews with experienced engineers from top companies like Google, Facebook, and Amazon. These sessions are priced between $100 and $250, depending on the specific offering.Premium Mock Interviews
Users can book sessions with senior engineers to receive actionable feedback on their interview performance. These interviews cover various topics such as data structures and algorithms, systems design, machine learning, front-end engineering, engineering management, and behavioral interviews.Mentorship Sessions
In addition to mock interviews, users can also sign up for mentorship sessions with professionals. These sessions are booked similarly to the interviews but focus on different goals set by the user.Personalized Courses
Interviewing.io also offers 1-on-1 courses to help users master specific skills, such as data structures and algorithms or machine learning. There are also courses tailored to prepare users for specific company interview processes.Key Features
Anonymous Interviews
The platform allows users to participate in anonymous interviews, where they are judged solely on their skills rather than their resume or background. Users can choose to “unmask” later if they wish to proceed with the hiring process.Variety of Topics
Interviews and courses cover a wide range of technical and behavioral topics, ensuring comprehensive preparation for various types of interviews. In summary, Interviewing.io provides a mix of free and paid options, allowing users to choose the level of engagement and feedback that suits their needs and budget.
Interviewing.io - Integration and Compatibility
Integration with Other Tools
Interviewing.io integrates with several tools to enhance its functionality and streamline the recruitment process.Greenhouse Recruiting Integration
One of the key integrations is with Greenhouse Recruiting. To set up this integration, users need to create an Ingestion API key in Greenhouse Recruiting and provide it to Interviewing.io. This integration allows candidates and their contact information to be automatically added to Greenhouse Recruiting after a successful interview on Interviewing.io. A successful interview is marked when the interviewer advances the candidate to the next round and the candidate expresses their interest in continuing the process. The imported candidate information includes their full name, email address, and LinkedIn profile URL. Additionally, any interview feedback from the interviewer is also provided in Greenhouse Recruiting.Compatibility Across Different Platforms and Devices
Technical Interviews and Whiteboard Functionality
Interviewing.io supports technical interviews with features such as a collaborative and replayable whiteboard. This whiteboard is designed to overcome the limitations of other tools like CoderPad, especially for systems design interviews that require drawing. The whiteboard supports real-time user collaboration, mobile screens, and the ability to watch replays of the interviews. This feature is particularly useful for conducting and reviewing systems design interviews, which often involve complex drawings and diagrams.Device Compatibility
While specific details on device compatibility are not extensively outlined, the platform’s use of web-based tools like the whiteboard and one-way video interviews suggests that it is accessible on a variety of devices, including desktops, laptops, and mobile devices. This is consistent with the modern web application design that aims to be responsive and adaptable to different screen sizes.Anonymous Mock Interviews
Interviewing.io also offers anonymous mock interviews, which can be conducted with experienced engineers from top companies like Facebook, Google, and others. These interviews are accessible through the platform’s web interface, ensuring that candidates can prepare for technical interviews from any device with a stable internet connection. In summary, Interviewing.io integrates well with recruitment tools like Greenhouse Recruiting and offers a range of features that are compatible across various devices, making it a versatile tool for both candidates and recruiters.
Interviewing.io - Customer Support and Resources
Customer Support
- Users can reach out to Interviewing.io through email at
interviewers@interviewing.io
to inquire about the platform or to provide information about themselves if they are interested in becoming an interviewer or using the services. - The platform ensures anonymity, so users can choose how much information they reveal during the interviews, and their contact information is not shared without their permission.
Additional Resources
- Mock Interviews: Interviewing.io provides both free and paid mock interview options. Users can practice with peers for free or opt for paid sessions with experienced engineers from top companies like Google, Facebook, and Amazon. These interviews cover various topics such as data structures, algorithms, systems design, machine learning, front-end engineering, and behavioral interviews.
- Mentorship Sessions: Users can sign up for mentorship sessions with professionals to discuss specific areas they need improvement in. The booking process is similar to the interviews, but the focus can vary based on the user’s needs.
- Personalized Courses: The platform offers 1-on-1 courses to help users master data structures and algorithms or prepare for machine learning questions. There are also courses tailored to help users prepare for specific company interview processes, such as those at Google, Facebook, and Amazon.
- Learning Center: Interviewing.io has a Learning Center that provides resources to help users prepare for their next interview. This includes tips, guides, and other materials to aid in their preparation.
Job Matching and Opportunities
- If users perform well in their practice interviews, they can gain access to the jobs portal, where they can get warm introductions to hiring decision-makers at top companies. This allows users to potentially secure real technical interviews without the need for traditional job application processes.
Overall, Interviewing.io is structured to provide a comprehensive support system for software engineers looking to improve their interview skills and increase their chances of landing jobs at top tech companies.

Interviewing.io - Pros and Cons
Advantages of Interviewing.io
Expert Coaches and Feedback
Interviewing.io offers mock interviews with experienced engineers from top tech companies like Google, Facebook, and Amazon. These coaches have conducted numerous interviews at FAANG companies, ensuring high-quality feedback and preparation for technical interviews.
Anonymity
The platform provides completely anonymous interviews, which can be comforting for candidates who prefer not to reveal their identity, especially if they are currently employed. This anonymity also helps in reducing bias during the hiring process, promoting diversity in engineering teams.
Performance Prediction and Job Opportunities
Performing well in mock interviews on Interviewing.io is a strong predictor of success in real technical interviews. Top performers are more likely to pass interviews at top-tier companies, with a 32% increase in the chance of working at a FAANG company post-interview. Additionally, candidates can be referred for actual job interviews if they perform well.
Comprehensive Resources
The platform offers free guides, such as an outstanding system design interview guide, and personalized 1-on-1 courses to help engineers master data structures, algorithms, and other specific company interview processes.
Efficient Recruitment Process
For businesses, Interviewing.io streamlines the recruitment process by pre-screening candidates based on their performance in mock interviews, allowing companies to quickly connect with top talent.
Disadvantages of Interviewing.io
Pricing
Interviewing.io is relatively expensive, with mock interviews starting at $225, which can increase depending on the subject matter and the specific company of the interviewer. This makes it less accessible to those on a budget.
Waitlists
There is often a waitlist for signing up, which means immediate access to the services is not guaranteed. This can be a drawback for those who need interview coaching urgently.
Limited Flexibility in Coach Selection
Users cannot choose their own coaches; instead, Interviewing.io matches them with an appropriate interviewer. While you can request a coach from a specific company, the final decision is made by the platform.
Not Suitable for Beginners
Interviewing.io is not recommended for those new to technical interviews. It is best for candidates who already have some experience with technical interviews and are familiar with the format.
Technical Focus
The platform primarily focuses on coding and system design interviews, making it less useful for those seeking mock interviews in other areas such as behavioral, SQL, or product interviews.
No Cheating Detection
Unlike some other platforms, Interviewing.io does not offer any cheating detection capabilities, which could be a concern for recruiters.
By weighing these pros and cons, candidates can make an informed decision about whether Interviewing.io aligns with their needs and budget for preparing for technical interviews.

Interviewing.io - Comparison with Competitors
AI-Driven Job Search and Interview Preparation Tools
When considering AI-driven job search and interview preparation tools, interviewing.io stands out for its specific focus and unique features, but it also has several competitors that offer distinct advantages. Here’s a comparison with some of its notable alternatives:
Interviewing.io
- Focus on Tech Interviews: interviewing.io is particularly geared towards software engineers and those aiming for positions in FAANG companies. It offers full-length practice courses, real mentorship sessions, and coaching from experts in top tech companies.
- Anonymity and Diversity: It promotes diversity by allowing candidates to remain anonymous during interviews, helping to reduce biases.
- Cost: One of the significant drawbacks is its higher cost compared to some other alternatives.
Alternatives
Codility
- Technical Skills Evaluation: Codility focuses on evaluating candidates’ technical skills, helping engineer leaders build diverse and high-performing teams. It is more geared towards recruiters and hiring managers rather than individual job seekers.
- Feature Set: Codility does not offer the same level of interview practice and coaching as interviewing.io but excels in technical skills assessment.
Mindely
- AI-Powered Interviews: Mindely uses AI to conduct live interviews, allowing for skill-based evaluations, role-playing, and case study interviews. It can handle a high volume of interviews with minimal time commitment from managers.
- Automated Evaluation: Mindely automatically evaluates and ranks candidates using a customized scorecard, reducing unconscious bias and time spent on interviews.
- Different Use Case: While interviewing.io is for individual practice, Mindely is more suited for companies looking to streamline their hiring process.
Interviewsby.ai
- Job Description-Based Preparation: Interviewsby.ai helps candidates prepare for interviews based on specific job descriptions, providing instant feedback on their responses. This tool is more budget-friendly and offers real-time assistance.
- Focused on Individual Preparation: Like interviewing.io, it is designed for individual job seekers to practice and improve their interview skills.
Interview Sidekick
- Personalized Practice Sessions: Interview Sidekick offers personalized practice sessions with real-time interview assistance and instant feedback. It includes a vast question bank categorized by industry and job role, making it a budget-friendly alternative to interviewing.io.
- Broad Industry Coverage: Unlike interviewing.io, which is heavily focused on tech and FAANG companies, Interview Sidekick covers a broader range of industries.
Final Round AI
- Mock Interviews and Resume Building: Final Round AI provides mock interview preparation with real-time guidance and also includes a resume builder. This makes it a more comprehensive tool for job seekers who need help with both interview preparation and resume optimization.
- Additional Features: The inclusion of a resume builder sets it apart from interviewing.io, which focuses primarily on interview practice.
Velents AI
- Technical and Psychometric Tests: Velents AI offers technical tests and psychometric assessments to evaluate candidates. It also allows for quick video interviews and ranks candidates based on their performance. This tool is priced at $99 per month and is more geared towards recruiters and hiring managers.
- Comprehensive Assessment: Velents AI provides a more holistic assessment of candidates, including personality and hidden talents, which can be beneficial for companies looking for a well-rounded evaluation.
Each of these alternatives offers unique features that cater to different needs and preferences. If you are a software engineer targeting FAANG companies and are willing to invest in premium coaching, interviewing.io might be the best choice. However, if you are looking for more budget-friendly options or tools that cater to a broader range of industries and needs, alternatives like Interviewsby.ai, Interview Sidekick, or Final Round AI could be more suitable. For companies seeking to streamline their hiring process, Mindely or Velents AI might be more appropriate.

Interviewing.io - Frequently Asked Questions
Frequently Asked Questions about Interviewing.io
What is Interviewing.io and what services does it offer?
Interviewing.io is a platform that allows software developers to practice technical interviews with experienced engineers from top companies like Facebook, Google, Amazon, and Apple. It provides anonymous mock interviews, which can help users prepare for real technical interviews. The platform also offers features like one-way video interviews and the ability to review recorded interviews for self-improvement.How much does Interviewing.io cost?
The pricing for Interviewing.io varies. Mock interviews can cost between $100 and $225, depending on the subject matter and the experience of the interviewer. There is also a free tier where users can engage in peer practice with other users. Additionally, Interviewing.io is working on a deferred payment plan where users can delay payment until they find their next job.What types of interviews can I practice on Interviewing.io?
Interviewing.io focuses primarily on technical interviews, including areas such as data structures, algorithms, and systems design. It does not offer mock interviews for other types like behavioral, SQL, or product interviews. The platform is best suited for users who have some experience with technical interviews.Can I choose my own interviewer or mentor on Interviewing.io?
No, you cannot choose your own interviewer or mentor on Interviewing.io. While you can request an interviewer from a specific company, the platform will handle the matching process. There is no option to select a particular coach or mentor.Is there a waitlist for using Interviewing.io services?
Yes, there is a waitlist for signing up for Interviewing.io services. This means that there is no guarantee you will be able to use the services immediately after signing up.What features does Interviewing.io offer beyond mock interviews?
Interviewing.io offers several features beyond mock interviews, including one-way video interviews, the ability to review and store recorded interviews, and the option to practice with peer users in the free tier. However, it does not provide coding skill assessments or a library of ready-to-use tests like some other platforms.Is Interviewing.io suitable for beginners?
Interviewing.io is not recommended for beginners who have no experience with technical interviews. It is best for users who already have some familiarity with the format and content of technical interviews.Can I use Interviewing.io for real job interviews?
Yes, Interviewing.io allows users to participate in real interviews with top companies within its ecosystem. If users perform well in practice interviews, they can unlock the ability to interview anonymously with these companies.Does Interviewing.io offer any free services or volunteer opportunities?
Yes, Interviewing.io has a free tier where users can engage in peer practice with other users. Additionally, some professional interviewers volunteer their time to help users from underrepresented groups practice interviewing for free.How does Interviewing.io handle payment for its services?
Interviewing.io offers a flexible payment model. For premium interviews, users can opt for a deferred payment plan where they do not have to pay until they find their next job.What kind of feedback can I expect from Interviewing.io?
Interviewing.io allows users to review and store their recorded interviews, which can be used for self-improvement. However, it does not provide detailed feedback on coding skills or other assessments like some other platforms.
Interviewing.io - Conclusion and Recommendation
Final Assessment of Interviewing.io
Overview
Interviewing.io is a valuable platform for software engineers and technical candidates looking to improve their interview skills and increase their chances of getting hired by top companies. Founded in 2015 by Aline Lerner, the platform offers a unique approach to technical interviewing by focusing on skills and qualifications rather than resumes and subjective measurements.
Key Features
- Anonymous Interviews: Candidates can practice technical and behavioral interviews anonymously, which helps eliminate biases based on background, resume, or other personal factors. This anonymity ensures that candidates are judged solely on their skills.
- Practice Interviews: Users can book practice interviews with real engineers from companies like Google, Facebook, and Uber. These interviews cover a range of topics including data structures and algorithms, systems design, machine learning, and more.
- Real Interviews: Performing well in practice interviews can lead to opportunities for real technical interviews with top companies within the interviewing.io ecosystem.
- Mentorship and Courses: The platform also offers mentorship sessions and personalized courses to help candidates prepare for specific company interview processes or master particular skills like data structures and algorithms.
Benefits
- Improved Hiring Chances: Candidates who complete five or more mock interviews on the platform can double their likelihood of getting hired. Additionally, 94% of users land jobs within four months of starting their practice.
- Compensation Boost: Improved interview performance can result in up to a $50K boost in compensation offered.
- Faster Recruitment: Recruiters benefit by filling roles 3.5 times faster due to the pre-vetted and qualified candidates in their pipeline.
Who Would Benefit Most
Interviewing.io is particularly beneficial for:
- Software Engineers: Those looking to improve their technical interview skills and increase their chances of getting hired by top tech companies.
- Underrepresented Groups: The platform’s anonymous interview process helps reduce biases, providing more opportunities for historically marginalized candidates.
- Recruiters: Companies can identify and hire qualified candidates more quickly and efficiently, reducing recruiting time by up to 80%.
Recommendation
Interviewing.io is a highly recommended tool for anyone serious about improving their technical interview skills and securing jobs at top tech companies. Its anonymous interview process, extensive practice opportunities, and focus on relevant skills make it a valuable resource for both candidates and recruiters. The platform’s ability to reduce bias and speed up the hiring process adds significant value to the job search and recruitment process. If you are a software engineer or technical candidate looking to enhance your interview performance and increase your hiring prospects, interviewing.io is definitely worth considering.