Mistakes and qualifications in the interview: Complete Guide

Preparing for an interview? That can be truly intimidating, confusing, scary and even something that makes you anxious and nervous no matter how many times you have given an interview. So what can be done to improve this situation?

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Mistakes and qualifications in the interview: Complete Guide

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Being aware of mistakes and qualifications in the interview beforehand. For which, we have curated this article where we will discuss how you should prepare yourself for any and everything that interviewer asks, how to present yourself, how to conduct yourself and much more. Job interviews are scary, especially when it is your dream job or when you have been giving many job interviews and not getting many call backs for further hiring process.

Mistakes and qualifications in the interview

When you are preparing for the job interviews, you keep in mind the hiring managers, the company culture, potential employers, your behaviors such as firm handshake, avoiding poor body language, maintaining eye contact, going through mock interview, avoiding any interview mistakes, avoiding speaking negatively, arriving late and so on and on. Sometimes, due to nervousness or circumstances beyond our control such as our personal life and so on, can make it difficult to manage the standards by which the corporate world functions.

So in this article, we will talk all about interview mistakes and the qualifications that influence how your interview can turn out. Most candidates fail to understand how important points regarding interview can make it or break it for them.

Why you should be aware of common interview mistakes?


The job market is highly competitive, and there is no dearth of people applying to jobs and it could be your job no matter how complicated and highly educated field it might be, there will always be someone else. Therefore, please try to avoid common mistakes because the competitiveness off the job market is high and when the competition is high, your skills and experience will not be enough. Your good manners, your behavior during the entire interview, your answers, your skills' portrayal, your position, your good posture, your ability to feel confident and stay focused will all matter much more than you may imagine when you are competing with fellow job applicants who may have the same skills and experience. Not taking competitiveness seriously is one of the many common interview mistakes that you need to avoid.

First Impressions matter

Creating first impressions is an important part of any interview, that may be the first and last chance you might get to impress the hiring managers and even build the rapport. Hiring managers may not always be the final decision-makers, however, having a good relationship with them can be really helpful when you get hired. And for that, you need to leave a lasting impression not just as a professional employee but also as a person which means you need to avoid appearing unpolished, dressing inappropriately, making common interview mistakes and showcasing your soft skills. Not taking the opportunity at first and last impression, can cost you your dream job.


Being aware of common interview mistakes, means you will make improvements wherever it is necessary. You will make sure to avoid mistakes such as arriving late by ensuring to plan ahead, researching the potential employers, company culture, company website, potential employer and their company's mission, biggest mistakes candidates make that are your competition, taking some good feedback in your portfolio from your current or previous employer, salary range in the market to set your own salary expectations and so on.

Interview Success

Why do we do anything? For success, with any goal or desire we have. To avoid common interview mistakes, you need to be aware of common job interview mistakes and that in turn can lead to a successful interview, employers understand the efforts that you put in and it helps with establishing rapport with the interviewer, leaving a good impression, putting yourself in a position where you are the top candidate among many other candidates.

Mistakes and qualifications in the interview

Common interview mistakes

Now that we have learn why it is important to be aware of the common job interview mistakes to avoid, let's learn how to avoid common interview mistakes (and which)!

Being late

Many candidates do not understand that the interviewer that is interviewing them, is burdened with multiple interviews and other responsibilities for the day, meaning barring certain circumstances where you were helpless, the act of arriving late is never okay. It unprofessional and leaves a bad impression on the hiring managers. You always want to put the best foot forward to ensure that the interviewer provides you with the opportunity of next interview round.

Informal or casual attire

There is a decided dress code for everyone in the corporate world, depending on the industry and your level of professional career and the type of professional setting that the interview is being conducted in, the interviewer that is interviewing you and such factors, you need to decide the color and pattern of your attire which is formal or semi-formal. If you make the interview mistake of going for informal or casual attire, you will not be able to leave a good impression on the hiring managers. They might even think that you lack genuine interest in the position that you are giving the interview for.

Informal manners and behavior

The soft skills are often underestimated by professionals which is one interview mistake that you never want to make. Being able to communicate and behave well, makes a huge difference for any interview. Your body language, whether you are paying attention or not, your answers and the way you answer, the regular eye contact, your tone and language-should be formal and within the professional boundaries. And this means following etiquettes of behavior- in communication as well as conduct. For example, you should address the hiring managers with respect and formally, not the way you address your friends. You should not bad mouth your previous employers or talk bad about your current job, abide by the etiquettes even when you are giving virtual interviews. For most interviewers, these factors play a huge role.

Not doing prior research

As a professional you may already know your job and the job industry however, there is always more to know and learn out there because none of us can know everything at any point. When you are going for an interview, you should make sure that you do the research, it can be about what skills the interviewers are looking for, which extra skills do you have that you can display to impress the interviewer, what does the company culture look for, how can you improve the company, what is written on company website, the answers to the possible questions that may be asked during the interview, what are the common job interview mistakes that should be avoided. A good job interview is much more than eye contact and good soft skills; as important as soft skills maybe, your real knowledge of the field, your experience, your experience with previous employers, your employer and their company's mission matters a lot as well.

Mistakes and qualifications in the interview

Not asking any questions

Often when the interview is over or when the interview is ongoing, the interviewers ask the candidates to ask any questions to the interviewer that they might have. And this is one of the most common interview mistakes, most candidates do not ask any questions. And that makes you look like you lack confidence and you do not have a firm stance on your career aspirations, it can also make you seem desperate. To avoid this, you should do some research, set some personal criteria and objectives and prepare certain questions for the hiring manager or the employer, it could be about the employer or the company or the job responsibilities and so on.

Using mobile phone

Using your mobile phone while you are giving your interview is a strict no in any sense, and we trust you that you will not openly do so in front of the interviewer. However, the point is that even if you are carrying your phone with you in the interview, please keep it on silent, keep it switched off or on airplane mode so that it does not buzz, ring or alarm you in anyway which will first distract you and throw you off your rhythm and secondly if the interviewer gets to know that then it will be very unprofessional. Please keep in mind not to carry your phone or any other device with you in the interview room.


Formal education

While the interview is being conducted, your formal education is going to be brought up most of the times if you are a fresher, or someone who is new to the work force. Bringing your formal education is a way for the interviewer to judge your knowledge, your ability to recall concepts when required and also how you are able to explain the concept asked off you. Formal education topic can be steered either way, the way you want it or the way the interviewer wants it. The reason I say the former is because you can be sneaky in the way you answer and then lead by saying things that will tell the interviewer that you are interested more in the subjects/topics you are comfortable with as opposed to the ones you are not comfortable with.

Distance education

Distance education is a point where, the education one has done is from an institution not in your location, of you were not able to attend one near you and you chose this option since it allows you the flexibility to work and learn as well. Distance education if you have opted for is going to be a good way to showcase the interviewer how diligent, motivated, energetic, harmonised you are in the ways of learning and progressing. This will allow the interviewer or the hiring manager to decide between candidates who might not seem as dedicated as you to keep yourself up-skilled in these times when the nature of the jobs keep changing ever so quickly.


If you have done any diploma, other than your degree, or only diploma, then this becomes your talking point or point of discussion with the interviewer. Diploma's are usually of shorter duration than a degree, for example your high school diploma is not a degree.


If you have completed your higher education from a college or university in a formal setting which will take from three to four years, then you will receive a degree. You undergraduate degree, then a post graduate degree, then a Doctorate of Philosophy degree.

Certification courses

These courses add value to your knowledge and by extension they make your resume stand out by showcasing that you constantly keep yourself updated with new information and course, keep yourself up-skilled. However, in sense of your education they don't add much value since they are not professional diplomas or degrees


Experience is what the interviewer will focus most on. Most of the interview will focus around this so you must be thoroughly prepared with what to say and how to say it. You should thoroughly go through your resume and what points you have mentioned there and you should know it like its at the back of your hand. Therefore, study it before you sit. The interviewer is going to pick points from there and ask you to elaborate and then you should also have examples ready on your tongue.

Mistakes and qualifications in the interview

If you have not mentioned some experience points on your resume and want to cover up, find a segue to bring them up if they add value to you as a person and be sure to lead the conversation in a way which allows you to pick up more points of your own than the interviewer asking you new questions.

More over try to connect your experience at your previous jobs with the one you are applying for, this will help the interviewer realize that you are eager and willing to be part of the organization.


To conclude, we would reiterate the importance of avoiding common job interview mistakes because it can make a big difference for you. If you have been getting no call backs or perhaps only 30% call backs, with the awareness of the common mistakes to avoid in job interviews, you can change the situation and even get 95% call backs from job interviews. One interview mistake can make the hiring manager lose interest in you as a candidate, and avoiding one common interview mistake can also impress the hiring managers.

May be after your first interview, you did not write a follow up email which is a common mistake, but after the first mistake, you might have corrected it and after the second interview, you may have written a thank you email and observed the difference that a simple email can make. In this article, we have talked about dress code, answers, company's importance and how to research on company can go a long way, we talked about how you should prepare your answers and so on.

If you are looking to improve your resume or write it from scratch, we have a great collection of resume examples, templates and more. We even have a resume builder feature that will suggest AI prompts like ChatGPT and your resume will be ready within a matter of minutes. To learn how to write a professional resume for your particular profession, you can check out our resume writing guides and they will help you a lot. Good luck with the job interview and job search!

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Frequently Asked Questions (FAQs)

What are some of the common mistakes to avoid in job interview?

Here are some of the common mistakes to avoid in the job interview:

  • Casual dressing: You should always be dressed in formal or semi-formal clothing when you are going for a job interview and you should clean up well with hair and accessories and footwear etc. Casual dressing can leave a really bad impression.
  • Not doing research: Not doing research on the employer company and your role is a common mistake that you must avoid as it can lead the recruiter to think that you are clueless and that is highly unprofessional.
  • Behavior: Your behavior should be kind, polite, formal and humble, you should talk in formal tone but kindly and politely, you should make sure your body language is formal and professional, you should not seem casual when it comes to how you sit, how you talk and how you behave.
What should be the dress code for a job interview?

You should wear formal or semi-formal clothing for a job interview and avoid the job interview mistake of wearing casual clothes.

How should I answer questions in a job interview?

You should answer the questions in formal manner, with kind and normal tone and pitch, with politeness, with good honesty and humility. You should try to reflect your confidence but avoid looking overconfident.

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